Unit 5 The human brain 单元话题（人类大脑）阅读理解15篇（分层练习）-【上好课】2024-2025学年九年级英语上册同步精品课堂（牛津上海版）

Unit5 The human brain 单元话题（人类大脑）阅读理解15篇（分层练习） The human brain is very small and light. Its weight is only 2% of our total body weight, but it needs about 20% of the oxygen(氧气) that our bodies take in. We can’t think well if our brains aren’t getting enough oxygen, so always make sure there’s enough oxygen in the air when you need to remember something. How can you improve your memory? Here are some suggestions. When you want to remember something, tell someone about it. This way the new information becomes easier to remember. Later on, thinking about the conversation will remind you of the thing. Our memory works well when we’re asleep. If you want to remember something, try going to sleep right after learning it. If you have to remember something big, break it down into small parts. It’s easier to remember 198756430387 if you break it down into four small parts:198-756-430-387. If you want to remember some information and you can’t, don’t get angry. Just relax and try again later. One of the best ways of remembering things is to make “pictures” in your mind. If you want to buy many things including bread, flowers, gloves, a notebook and oil, just make up a story with them: Mary was hungry and was looking for some BREAD．She opened the fridge, and saw it was full of FLOWERS. She decided to wear her GLOVES and leave the house. But she tripped over a bottle of OIL and found her important NOTEBOOK under the sofa ... Let yourself be surprised by your memory! 1．For a good memory, what did the writer first talk about the importance of? A．Enough oxygen. B．Strong light. C．A big brain. D．Proper body weight. 2．Which of the following can’t help you to remember things according to the passage? A．Sleep. B．Relax your mind. C．Tell someone about them. D．Do sports. 3．Which of the following words can be remembered most easily according to the passage? A．responsible B．responsibility C．res-pon-si-ble D．response 4．The story about Mary is an example of ________. A．why going shopping is fun B．how “pictures” help improve memory C．how important it is to be careful D．why we should learn to draw pictures 5．What does the text mainly talk about? A．How to improve your sleeping habit. B．How to get more oxygen for your memory. C．How to improve your memory. D．How to increase your weight. 【答案】1．A 2．D 3．C 4．B 5．C 【导语】本文是一篇说明文，介绍提高记忆力的几种方法。 1．细节理解题。根据第一段“We can’t think well if our brains aren’t getting enough oxygen, so always make sure there’s enough oxygen in the air when you need to remember something.”可知，作者在文章第一段首先表明氧气对于大脑记忆的重要性。故选A。 2．细节理解题。根据第一段“When you want to remember something, tell someone about it.”可知，与别人交流有助记忆；根据第三段“ Our memory works well when we’re asleep.”可知，睡眠有助记忆；根据第四段“If you want to remember some information and you can’t , ... Just relax and try again later.”可知，放松有助记忆；即交流、睡眠和放松都有助记忆，而文中没有提及运动对记忆的帮助。故选D。 3．推理判断题。根据第三段“If you have to remember something big, break it down into small parts.”可知，记住复杂的东西，可以把它分解成小的部分。C项把单词按音节分成了若干小部分，是比较方便记忆的方式。故选C。 4．细节理解题。根据第四段“One of the best ways of remembering things is to make “pictures” in your mind ... just make up a story with them”可知，可知，作者举出Mary这个故事的例子，是为了说明记忆事物的最好方法之一就是在脑海中形成“画面”，把要记忆的东西编成一个故事。故选B。 5．主旨大意题。通读全文可知，结合第一段“How can you improve your memory? Here are some suggestions.”可知，本文主要介绍提高记忆力的几种方法。故选C。 We humans have walked on the moon, treated illness and have built buildings, from ancient houses to tall modern buildings. So what is it that makes us so special? The answer is our brains. The human brain can control our thoughts (行为). Below are more facts about this natural supercomputer. Scientists have discovered that while most areas of the brain finish forming before we leave high school, the areas that deal with planning, reasoning, the brain starts going down slowly, making our mid-20s the time when our brains are truly the strongest in reaction! Besides, three-quarters of the brain’s weight is water. If the brain is short of water, it can cause a headache and even the memory (记忆力) will go down. We often think that a bigger brain means a better brain. However, a bigger brain does not always mean a smarter brain. For example, elephants have much larger brains than humans, and can’t deal with the information. Our brains aren’t the biggest, but they are the brightest. The brain’s size is important, but the structure (结构) is even more so. Of course, these aren’t the only interesting things about the brain. In fact, the brain still has quite a few secrets for scientists to solve. 1．What is the purpose of Paragraph 1? A．To lead in the topic of the text. B．To describe what humans can do. C．To introduce differences of brains. D．To explain why the brain can control humans. 2．How does the writer tell us a bigger brain does not always mean a smarter brain in Paragraph 4? A．By giving an example. B．By listing numbers. C．By giving data. D．By telling a story. 3．Which of the following decides a better brain? A．The brain’s size. B．The brain’s shape. C．The brain’s organization. D．The brain’s weight. 4．What do you know from the end of the text? A．Humans have a full understanding of the brain. B．Humans still have a long way to study the brain. C．Humans know nothing about the study of the brain. D．Humans know few interesting things about the brain. 5．What’s the text mainly about? A．Different ways to use human brains. B．Interesting facts about human brains. C．The important changes of human brains. D．Reasons for the importance of human brains. 【答案】1．A 2．A 3．C 4．B 5．B 【导语】本文主要介绍了关于大脑的一些有趣的事实。 1．推理判断题。根据“So what is it that makes us so special? The answer is our brains. The human brain can control our thoughts (行为). Below are more facts about this natural supercomputer.”可知，第一段主要是为了引出人类与众不同之处的这一话题。故选A。 2．推理判断题。根据“For example, elephants have much larger brains than humans, and can’t deal with the information.”可知，作者在第 4 段中是通过举例子告诉我们更大的大脑并不总是意味着更聪明的大脑。故选A。 3．细节理解题。根据“Our brains aren’t the biggest, but they are the brightest. The brain’s size is important, but the structure (结构) is even more so.”可知，大脑的结构让大脑更聪明。故选C。 4．推理判断题。根据“In fact, the brain still has quite a few secrets for scientists to solve.”可知，人类研究大脑还有很长的路要走。故选B。 5．主旨大意题。根据“Of course, these aren’t the only interesting things about the brain.”可知本文主要介绍了关于大脑的一些有趣的事实。故选B。 The human brain is amazing. People think and solve problems with their brains. What if a city had a “smart brain”? There might be something like that in Beijing! Beijing’s Haidian district has been working on it since 2018. Recently, they added a big data (大数据) model called Jiuzhou to make the city brain even better. It uses artificial intelligence (人工智能AI) to quickly collect data and highlight what people care about. It can give suggestions for fixing problems within minutes, making city management smarter. To explain how it works, the official asked it to name the top three streets with the best noise pollution solutions. The big model quickly found the streets that did well in fixing noise pollution in early August 2023. It also suggested ways to deal with the problem. The district plans to build 572 smart and safe communities using technologies like smart access (准入) control and facial recognition (识别). These technologies help keep people safe by quickly knowing what problems might happen and improving how the police deal with situations. The district also plans to watch out for cars that make black smoke. This system has machines on important roads to catch black smoke, an online system that checks in real time, and sensors (感应器) that study the bad things in the air. This can make sure that the important roads are always watched carefully. It works together with the police and transportation teams to stop cars that make black smoke and keep the air clean. Smart governance (治理) wants to make the city work better and improve people’s lives by using smart technology and analyzing data. 1．What does the underlined word “it” in Paragraph 1 refer to? A．Human brain. B．Haidian District. C．The city brain. D．Jiuzhou. 2．What are the advantages of the city AI? a. Collecting data                               b. Catching black smoking c. Giving suggestions                           d. Fixing noise pollution A．a and b B．c and d C．b and d D．a and c 3．Through AI services, Haidian district plans to ________. A．put 572 kinds of technologies into use B．clean the cars with black smoke C．name more busy streets D．improve people’s safety 4．Which is the right structure of the passage? (①=Paragraph 1      ②=Paragraph 2,……) A． B． C． D． 5．What is the best title for the passage? A．High-Tech Changes everyone B．“City Brain”Guides the future C．Tomorrow of“Human Brain” D．The importance of people’s safety 【答案】1．C 2．D 3．D 4．A 5．B 【导语】本文主要讲述了“城市大脑”在海淀区的应用，以及海淀区对未来的计划，希望利用“智能管理”改善人们的生活。 1．代词指代题。根据“Beijing’s Haidian district has been working on it since 2018. Recently, they added a big data (大数据) model called Jiuzhou to make the city brain even better. ”可知，自2018年以来，北京海淀区一直在研究“城市大脑”，所以it指的是“城市大脑”，故选C。 2．细节理解题。根据“It uses artificial intelligence (人工智能AI) to quickly collect data and highlight what people care about. It can give suggestions for fixing problems within minutes, making city management smarter.”可知，AI可以收集数据，可以给出解决问题的建议，故选D。 3．细节理解题。根据“The district plans to build 572 smart and safe communities using technologies like smart access (准入) control and facial recognition (识别). These technologies help keep people safe by quickly knowing what problems might happen and improving how the police deal with situations. ”可知，海淀区计划运用这些技术通过快速了解可能发生的问题和改进警察处理情况的方式来帮助保护人们的安全。故选D。 4．篇章结构题。第一段是引出话题，并解释“城市大脑”的原理；第二段介绍该技术的应用结果，第三、四段是介绍海淀区对该技术应用的计划；最后一段总结全文。A项符合文章结构，故选A。 5．最佳标题题。本文主要讲述了“城市大脑”在海淀区的应用，以及海淀区对未来的计划，希望利用“智能管理”改善人们的生活。B项“‘城市大脑’引领未来”最适合做标题，故选B。 The human brain is very small and light (only 2% of our total body weight), but it needs about 20% of the oxygen that our body takes in. We can’t think well if our brain isn’t getting enough oxygen, so always make sure there’s enough oxygen in the air when you need to learn or remember something! No one can remember everything, but everyone can learn how to improve their memory (记忆力). Here are some suggestions. None of them can make your memory 100% perfect, but all of them are helpful. ●When you want to remember something, tell someone about it. This way the new information becomes easier to remember. Later on, just thinking about the conversation will remind (提醒) you of the thing. ● ▲ . If you want to remember something, try going to sleep right after learning it. ●If you have to remember something big, break it down into smaller parts. It’s easier to remember 198756430387 if you break it into four smaller parts: 198-756-430-387. ●If you want to remember a piece of information, and you can’t, don’t get angry. Just relax and try again later. ●One of the best ways of remembering things is to make “pictures” in your mind—and it’s fun, too! Scientists say that our brain works a lot in pictures. So sometimes, if we want to buy many things including bread, flowers, gloves, a notebook, and oil, just make a crazy story with them as you like: Lisa was hungry and was looking for some BREAD．She opened the fridge, and saw it was full of FLOWERS. She decided to put on her GLOVES and leave the house. But she tripped over her NOTEBOOK and fell on a bottle of OIL… Let yourself be surprised by your memory! 根据材料内容选择最佳答案，并将其标号填入题前括号内。 1．The writer first talked about the importance of ________ for a good memory. A．a big brain B．strong light C．enough oxygen D．proper body weight 2．Which of the following may be helpful for you to remember things? A． B． C． D． 3．The story about Lisa is an example of ________. A．why going shopping is fun B．how important it is to be creative C．how pictures help improve memory D．why we should learn to draw pictures 4．Which of the following is the best to fill in the ▲ in Tip 2? A．Our memory works well when we are asleep. B．Our memory will be improved if we are healthy. C．If you want to remember something, just go to bed. D．The earlier you go to bed, the better memory you will have. 5．What’s the text mainly about? A．How to improve our sleep habit. B．How to get more oxygen for our memory. C．How to remember important things. D．How to improve our memory. 【答案】1．C 2．A 3．C 4．A 5．D 【导语】本文主要介绍了如何提高记忆力的方法。 1．细节理解题。根据第一段“The human brain is very small and light (only 2% of our total body weight), but it needs about 20% of the oxygen that our body takes in. We can’t think well if our brain isn’t getting enough oxygen”可知作者首先谈到了充足的氧气对良好记忆力的重要性。故选C。 2．细节理解题。根据“If you want to remember something, try going to sleep right after learning it.”可知，如果你想记住某件事，试着学完后立即睡觉。选项A符合文章表述。故选A。 3．细节理解题。根据“One of the best ways of remembering things is to make ‘pictures’ in your mind—and it’s fun, too! Scientists say that our brain works a lot in pictures.”及后文的描述可知，丽莎的故事是图片如何帮助提高记忆力的一个例子。故选C。 4．推理判断题。根据“If you want to remember something, try going to sleep right after learning it.”可知，如果你想记住某件事，试着学完后立即睡觉。因此选项A“当我们睡着的时候，我们的记忆力很好。”符合，故选A。 5．主旨大意题。通读全文可知，本文介绍了如何提高记忆力的方法，选项D“如何提高我们的记忆力”符合文章大意。故选D。 ① Everybody has a brain, but not many people know how the brain works. Some people believe that the brain is like the hard disk (磁盘) of a computer. We use it to store things-pictures, language (words, texts, sounds) and so on. Others compare the brain to a huge container with lots of shelves and boxes in it. We put information into these boxes and hope to find it again later. ②The brain is not a computer disk, And it isn’t a container. Look at the picture here. It looks a bit like weeds (杂草) in a garden, doesn’t it? The picture actually shows a child’s neocortex—a part of the brain. You can guess what happens—more ‘weeds’ grow as the child gets older. Scientists call these neuronal (神经元的) networks. What makes them grow? Learning! “Learning is brain change,” says Professor James Zull from Case Western University in Cleveland, Ohio, USA．“Without learning, nothing changes in the brain. For every new word you learn in your English lesson, every problem you solve in maths, every new song you learn to sing, a neuronal network grows in your brain and the brain changes.” ③There are many ways to make your brain stronger. The more neuronal networks we grow, the better we can think and the better we remember. You may wonder if there is anything you can do to make the networks in your brain grow better. Professor Zull says yes, there is. He says that brain change is the strongest in the following situations: ·You are interested in and like what you are learning; · You are in control of what you learn; · You get challenging tasks that make you think hard. Choose a right way to learn something, and you may develop your brain better than you think. 根据材料内容选择最佳答案。 1．How does the writer start this text? A．By telling a story. B．By listing numbers. C．By asking a question. D．By listing two different opinions. 2．What does the underlined word container mean? A．A disk used in the computer to store things. B．A wild plant that grows in a garden. C．An object used to carry or store things. D．A task that helps to develop your brain. 3．Our brain changes when we ________. A．learn languages B．have problems C．enjoy songs D．plant trees 4．What’s the main idea of paragraph 3? A．The brain is a fantastic computer. B．What people believe about the brain. C．How to make your brain stronger. D．We remember better when things are easy. 5．What’s the best title for the text? A．Interest is the best teacher B．Meeting life’s challenges C．Never too old to learn D．Learning is brain change 【答案】1．D 2．C 3．A 4．C 5．D 【导语】本文主要讲述了大脑在学习的时候会发生改变。 1．细节理解题。根据“Some people believe... Others think...”可知，作者通过列举两种不同的观点来开始文章，故选D。 2．词句猜测题。根据“Others think the brain to be a huge cupboard with lots of shelves and boxes in it. We put information into these boxes and hope to find it again later.”可知，另一些人认为大脑是一个巨大的橱柜，里面有很多架子和盒子。我们把信息放在这些盒子里，希望以后能再找到。所以此处container的意思是“用来携带或储存东西的物体”，故选C。 3．细节理解题。根据“Learning is brain change”可知，大脑在学习的时候会发生改变，故选A。 4．段落大意题。分析第三段内容可知，本段介绍使你的大脑更强的方法，故选C。 5．最佳标题题。根据全文内容可知，本文主要讲述了大脑在学习的时候会发生改变，故选D。 What time of day do you feel most alert(清醒的)? Are you more of a morning person? Or does your brain need a few hours to get going? A lot of research suggests that we should pay attention to our body clock. It can tell us what time of day we are be stable to perform, according to the Wall Street Journal(华尔街日报). When it comes to the human brain, many people work best later in the morning. This is because the body’s temperature takes time to rise through the day. Taking a warm shower when you wake up can help speed this up. But everyone’s body clock is different. Morning people will rise early and work better early in the day. Evening people will wake later but their brain will work better toward the end of the day. Research shows that we’re better at some activities at certain times of the day. Physical performance is at its best between 3 pm and 6 pm, so it’s better to exercise later in the day. Between noon and 4 pm, people begin to get distracted（思想不集中的）. This is partly because our brain becomes less alert after we eat a big meal. Research also shows that we become sleepy around 2 pm. Finally, it is best to eat during our active periods. This allows our body to burn calories better and stops our blood sugar levels from getting too high. 1．Many people perform best later in the morning because ________. A．they can’t get up very early B．That’s when the brain wakes up C．they have to take a shower first D．the body’s temperature needs time to rise 2．Evening people had better ________. A．rise late and work in the morning B．wake later and work in the evening C．rise early and work in the morning D．wake later and work after midnight 3．According to the research, which of the following is TRUE? A．It’s better to do exercise in the afternoon. B．We perform better after eating a big meal. C．sleeping at 2 pm is not good for our health. D．Our body burns calories better at night. 4．What is the passage mainly about? A．Research about time. B．The best time to do different things. C．Different periods of a day. D．Brain activities at different places. 【答案】1．D 2．B 3．A 4．B 【导语】本文是一篇说明文。文章主要介绍了生物钟，它可以告诉我们做事情的最佳时机。 1．细节理解题。根据“This is because the body’s temperature takes time to rise through the day.”可知，很多人在早上晚些时候表现最好，因为体温升高需要时间。故选D。 2．细节理解题。根据“Evening people will wake later but their brain will work better toward the end of the day.”可知，醒得晚的人他们的大脑在一天结束的时候工作得更好。故选B。 3．推理判断题。根据“Physical performance is at its best between 3 pm and 6 pm, so it’s better to exercise later in the day.”可推知，下午锻炼最好。故选A。 4．主旨大意题。根据“A lot of research suggests that we should pay attention to our body clock. It can tell us what time of day we are be stable to perform,”和通读全文可知，文章主要讲述了做事情的最佳时机。故选B。 Are you good at math? How about writing poems or painting beautiful pictures? Do you love to sing? It all depends on whether you are a “right-brain” or a “left-brain” person. The human brain is a truly amazing organ (器官). It’s not easy to study the brain, but science is slowly beginning to understand how it works. The brain is divided into two parts: the left side and the right side. Some people use the left side of the brain more than the right. Others use the right side more than the left. Left-brain people are good at math, science and reading. They do well in school. They can easily focus on detailed tasks. They like to work independently, and often enjoy studying alone. Right-brain people are more artistic. They love music and singing. They like to be around lots of people. They don’t like to sit still. Mind mapping (思维导图) is designed to use both sides of your brain—mind mapping involves your right and left brain thinking. Our ability to speak and communicate seems to have its origin in the unlikely pairing of the left brain and the right hand. The fact that you use one side of your brain more doesn’t mean that you don’t use the other side. It just means that you prefer one side to the other. One way is not better than the other. It only shows the way you learn best. 1．What’s the writer’s purpose of raising three questions in Paragraph 1? ________ A．To compare the readers carefully. B．To lead up to the topic of discussion. C．To know about the readers’ interests. D．To suggest some hobbies to readers. 2．Left-brain people would like to do the things except ________. A．reading books B．doing experiments C．drawing pictures D．doing math exercises 3．What does the underlined word “involves” in Paragraph 4 probably mean in Chinese? ________ A．包含 B．参加 C．解决 D．破坏 4．What can we infer from the last paragraph? ________ A．People only use one side of the brain. B．Two sides of the brain can’t work together. C．One side of the brain is better than the other D．People have different preferences for the brain use. 5．What would be the best title for the text? ________ A．The Role of the Brain B．Why the Brain Works C．Left Brain or Right Brain D．Mind mapping: a Way of Brain Use 【答案】1．B 2．C 3．A 4．D 5．A 【导语】本文主要介绍了人的左右脑的功能对其对人的影响。 1．推理判断题。根据“It all depends on whether you are a ‘right-brain’ or a ‘left-brain’ person.”可知，作者在第一段中提出问题的目的是引出“左脑和右脑”这一讨论话题。故选B。 2．细节理解题。根据“Left-brain people are good at math, science and reading. They do well in school. They can easily focus on detailed tasks. They like to work independently, and often enjoy studying alone.”可知，左脑型的人擅长数学、理科和阅读，他们在学校表现很好，他们可以轻松地关注于细节任务，他们喜欢独立工作，经常喜欢独自学习。没有提到他们喜欢画画。故选C。 3．词义猜测题。根据“Mind mapping (思维导图) is designed to use both sides of your brain”可知，绘制思维导图需要用到两边的脑子，说明它包含了左右脑的思维，involves意为“包含”。故选A。 4．推理判断题。根据“The fact that you use one side of your brain more doesn’t mean that you don’t use the other side. It just means that you prefer one side to the other.”可知，你更多地使用一边的大脑并不意味着你不用另一边，这只是说明你更喜欢其中的一方。由此可知，人们对大脑的使用有不同的偏好。故选D。 5．最佳标题题。根据“The human brain is a truly amazing organ (器官). It’s not easy to study the brain, but science is slowly beginning to understand how it works.”可知，本文主要介绍了大脑是如何工作的，也就是介绍了大脑的作用。选项A“大脑的作用”作为标题最为合适。故选A。 Human beings are amazing creatures. We have walked on the moon, cured diseases, and built many structures, from ancient Great Wall to modern buildings. So what is it that makes us so special? The answer is our brains. The human brain is a fantastic body part that controls everything from your breathing to your memories and imagination. Below are several more surprising facts about this natural supercomputer. The brain does not fully grown until age 25. Scientists have discovered that while most areas of the brain finish forming before we leave high school, the areas that deal with planning and reasoning aren’t fully grown until one’s 20s. What’s more, after the age of 24, the brain actually starts going into a slow drop, making our 20s the time when our brains are truly at their top! Three-quarters of the brain is water. As a result, our brain is always in great need of water, which is one reason why it’s important to drink lots of water. The brain’s large water content also affects its texture (质地), which is similar to puddings. Our brains aren’t the biggest, though being the brightest. We often think that a bigger brain equals a better brain. And while humans do have large brains, ours aren’t the largest in the animal world. Besides, we don’t even have the largest brains among humans. Neanderthals (穴居人) —though now disappear—had brains that were actually 10 percent larger than ours. This doesn’t mean they were smarter than us, though. Brain size is important, but the brain’s structure is even more so. Indeed, the human brain deals with a lot of hard work in a small space. Of course, these aren’t the only interesting things about the brain. In fact, our brains still have a lot of secrets for scientists to find out. Left hemisphere (半球） The left hemisphere mainly works for abstract (抽象) thinking, while also controlling the movement of the right side of the body. And the left hemisphere helps with language processing.                  Right hemisphere The right hemisphere helps to understand space relationships, process pictures, and control the movement of the left side of the body. Moreover, the right hemisphere deals with your moods. 1．How does the writer begin the article? A．By comparing animals’ brains. B．By giving an answer to a question. C．By providing different numbers. D．By describing a special experience. 2．What do we know about human brains according to the passage? A．They work best in the thirties. B．They are the largest in the world. C．They play a big role in breathing. D．They are similar to puddings in colour. 3．What may a patient who hurt his left hemisphere have difficulty in? A．Giving directions. B．Speaking to others. C．Feeling happy. D．Drawing pictures. 4．Which of the following is true about brains? A．Scientists already have a deep understanding of brains. B．We can help our brain grow faster by doing more exercise. C．The larger the brain size is, the brighter the animal will be. D．To help keep our brain healthy, drinking water is necessary. 【答案】1．B 2．C 3．B 4．D 【导语】本文主要介绍了人的大脑所发挥的作用。 1．细节理解题。根据第一段“So what is it that makes us so special? The answer is our brains.” 可知，作者通过回答问题开始这篇文章。故选B。 2．.细节理解题。根据第一段“The human brain is a fantastic body part that controls everything from your breathing to your memories and imagination.”可知，人类的大脑控制着从呼吸到记忆和想象力的一切。说明人类大脑在呼吸中起着重要作用。故选C。 3．推理判断题。根据表格左栏“And the left hemisphere helps with language processing.” 可知，左半脑受伤的病人可能在与他人交谈方面有困难。故选B。 4．细节理解题。根据“As a result, our brain is always in great need of water, which is one reason why it’s important to drink lots of water.”可知，为了保持我们的大脑健康，喝水是必要的。故选D。 You must think a computer is the best thing in the world, right? You must think it works at a super speed and can do everything? Well, it’s not! In fact, the brain (大脑) is much more powerful than any super computer! Think about when a glass is just about to fall off the table. Your brain controls everything that you need to do to save that glass from falling. First your eyes check out what’s going on, then tell your brain, and your brain. decides how quickly you need to react, and then your muscles (肌肉) go into action. That is just from your brain. No computer could ever come close to that! The brain weighs just 3 pounds, but it controls everything you do from thinking, learning, feeling even to breathing and your heart beating. Even though the brain is just 2% of your body weight, it uses around 20% of all your energy in your body. That is a lot for such a small organ (器官). There are about 100 billion tiny (微小的) little cells (细胞) in your brain. There are so many that it would take you over 3,000 years to count them all! Your brain stops growing when you’re 18, but it actually keeps on developing and learning new things. So your parents are really super smart! You won’t be able to fool them! Believe it or not. your brain NEVER stops working. Even during sleeping, the brain works for long-term memory establishment (建立). It is realized that the brain is the second organ in the body as the heart that never stops during human lives. So everyone should be proud of such a gift of nature. 根据材料内容选择最佳答案。 1．In Paragraph 1, the writer wants to tell us _________. A．eyes and muscles react quickly B．the brain is more powerful than any computer C．the computer is the best thing in the world D．the brain controls everything in your body 2．In Paragraph 2, the underlined word “That” refers to (指的是) ________. A．the body weight B．2% of the body weight C．all energy in the body D．around 20% of the energy in the body 3．Which is RIGHT according to the passage? A．The brain keeps on developing during human lives. B．The brain is the only organ that never stops. C．The brain keeps growing during human lives. D．The brain doesn’t work during sleeping. 4．Which word can best describe the brain according to the passage? A．Magic. B．Quick. C．Light. D．Developing. 5．You are fifteen. Is your brain still growing now? A．No, it isn’t. B．Yes, it is. C．It has stopped growing since two years ago. D．It will grow all my life. 【答案】1．B 2．D 3．A 4．A 5．B 【导语】本文是一篇说明文。主要介绍了人类大脑的相关知识。 1．细节理解题。根据第一段“In fact, the brain is much more powerful than any super computer!”和第一段内容可知，第一段主要告诉我们大脑比任何超级计算机都强大。故选B。 2．词义猜测题。根据第二段“Even though the brain is just 2% of your body weight, it uses around 20% of all your energy in your body. That is a lot for such a small organ”可知，尽管大脑只占你体重的2%，但它却消耗了你体内约20%的能量。对于这么小的器官来说，这太大了。由此克制that指约20%的能量。故选D。 3．细节理解题。根据第三段“Your brain stops growing when you’re 18, but it actually keeps on developing and learning new things.”可知，大脑虽然18岁时停止生长，但是却一直保持发展和学习新东西。故选A。 4．推理判断题。根据文章可知如此小的人脑居然能够比任何超级计算机更强大，居然能够使用人体能量的20%，结合备选项推测应该说人脑是神奇的。故选A。 5．细节理解题。根据第三段“Your brain stops growing when you’re 18”可知，大脑18岁时才停止生长。故选B。 A myth is something that is not correct, but many people believe it. There are a lot of myths about the human brain. One of the biggest myths is that we only use 10% of our brains. The next part of the myth is that if we can learn to use the rest of our brains, then we’ll be much smarter. People say this all the time, but it’s completely not true! The truth is that although we don’t know everything about the human brain, we know that each part of it has an important function. Modern scientists think the “10% myth” silly. Another popular myth is about being “right brained” or “left brained”. According to this myth, people who use the right side of their brains are more artistic and creative. People who use the left side of their brains are better at math and science. This is as popular as the 10% myth, and it’s also wrong. In 2013, a study at an American university tested the right brain and left brain myth. The study shows we use the left brain as much as the right brain. It’s true that we use different parts of our brains for different things. We use our left side for language more, and our right side when we need to pay attention. But there is no evidence that creative people use the right side more or that scientific people use the left side more. We’ve talked about myths, so let’s look at a few interesting facts about the brain. First of all, the brain feels no pain. Second, about 75% of the brain is made up of water. It’s also the fattest organ in your body. Here’s another interesting fact about the brain. Around the time you turn 18 years old, it stops growing. 1．What do scientists think of the “10% myth”? A．Not important. B．Not useful. C．Not true. D．Not interesting. 2．What does the underlined word “This” in Paragraph 3 refer to? A．The left brain myth. B．The right brain and left brain myth. C．The use of human brains. D．The study of an American university. 3．According to the facts mentioned in the passage, who may use the left brain more? A．Robert, who is learning English. B．Kate, who is drawing pictures. C．Jenny, who is designing clothes. D．Jacob, who is playing the piano. 4．Which of the following is TRUE about the human brain? A．It is growing all lifelong. B．The right side is used more by artists. C．Some parts of it are not used at all. D．Three quarters of it is made up of water. 5．What does the passage mainly talk about? A．The growing of the brain. B．Different functions of the brain. C．The right brain and left brain. D．Myths and facts about the brain. 【答案】1．C 2．B 3．A 4．D 5．D 【导语】本文讨论了关于人类大脑的几个常见谬论，如只使用大脑10%和左右脑功能分工的观点，并指出这些并非事实，同时介绍了一些有关大脑的有趣事实。 1．细节理解题。根据“Modern scientists think the ‘10% myth’ silly.”可知，现代科学家认为“10%传说”很愚蠢，也就是错的。故选C。 2．词义猜测题。根据“According to this myth, people who use the right side of their brains are more artistic and creative. People who use the left side of their brains are better at math and science. This is as popular as the 10% myth...”可知，使用右脑的人更具艺术性和创造性，使用大脑左侧的人更擅长数学和科学，这个传说和10%的神话一样受欢迎，“This”指代“左脑和右脑传说”。故选B。 3．推理判断题。根据“We use our left side for language more”可知，我们更多地使用左脑来处理语言，所以正在学习英语的Robert会更多地使用左脑。故选A。 4．细节理解题。根据“Second, about 75% of the brain is made up of water.”可知，大约75%，即四分之三的大脑是由水组成的。故选D。 5．主旨大意题。通读全文可知，本文讨论了关于人类大脑的几个常见谬论和一些有趣的事实。故选D。 Every time I look at the many recent orders on my online shopping account, or I receive a new package on my doorstep, I get a feeling of happiness that is hard to give up. Although I know that my shopping habits are bad for the planet, I just can’t stop. But Ann-Christine Duhaime’s new book, Minding the Climate: How Neuroscience Can Help Solve Our Environmental Crisis, has helped me understand that my desire (渴望) to keep buying things isn’t necessarily a personal weakness—it’s the way our brains have developed. According to Duhaime, we managed to stay alive even when things were hard because our brains learned to repeat decisions like moving towards a tasty treat or backing away from danger. Today, we have some 86 billion neurons (神经元) in the brain continuously working to strengthen rewarding behavior—a kind of action that results in a positive outcome, which makes a person want to do it again. As the neurons work, they produce dopamine (多巴胺), which makes our rewarding behavior feel even better than usual. We actively look for more dopamine, and at the same time, learn to repeat the actions that lead to it. However, Duhaime stresses that our brains are not programmed to keep buying more and more. All humans are different, and our brains work differently depending on our genetics (遗传性) and our life experiences. The challenge is that our brain systems are designed for short-term decision-making. When we buy something new, we get rewarded immediately. But the long-term worsening of the planet is harder for the reward centers of our brains to understand, even if we know about it. And there may be some ways to break the cycle. The best is not to stop buying things completely; a better solution may be to substitute the old rewards that we know aren’t good in the long run with new ones. For example, you can have a glass of milk, which gives you fewer calories, instead of eating chocolate just before bed for comfort. Once you start losing weight, the reward of being able to fit into your old clothes feels as good as what the chocolate would do. We need that same substitution for shopping. Buying used things could also help satisfy our desire to get more things without using more natural resources. Additionally, creating social rewards, like encouragement and support from a community with similar goals, can inspire positive changes. Humans naturally like to connect with others, and this social support can lead to more eco-friendly choices. 1．What do you know about human brains from the passage? A．The way brains work won’t be influenced by life experiences. B．Neurons play a role in people’s repeating rewarding behavior. C．Less dopamine is produced when people get positive outcomes. D．Brains don’t care about the short-term effects of people’s actions. 2．The word “substitute” in Paragraph 5 probably means “________”. A．take the place of B．look forward  to C．get ready for D．make up for 3．The writer probably agrees that ________. A．over-shopping harms the development of the human brain B．keeping buying gets in the way of people finding happiness C．the planet is free from the influence of people’s buying behavior D．creating social rewards can help people reduce the desire to over-shop 4．What is the writer’s main purpose in writing this passage? A．To explain why over-shopping is not a personal weakness. B．To show how dopamine makes people crazy about shopping. C．To guide people to make eco-friendly choices when shopping. D．To encourage people to buy used things to protect the environment. 【答案】1．B 2．A 3．D 4．C 【导语】本文主要分析了人们过度购物的科学原理，并说明人们可以通过利用这种原理来改变购物习惯。 1．推理判断题。根据第三段“Today, we have some 86 billion neurons (神经元) in the brain continuously working to strengthen rewarding behavior—a kind of action that results in a positive outcome, which makes a person want to do it again.”可知，我们大脑中约有860亿个神经元不断努力加强奖励行为，这使得人们会想要重复受到奖励的行为。由此推知，神经元在人们重复奖励行为中发挥着作用。故选B。 2．词义猜测题。根据第五段“For example, you can have a glass of milk, which gives you fewer calories, instead of eating chocolate just before bed for comfort.”可知，此处列举了一个例子：在睡前用喝牛奶来代替吃巧克力。由此猜测，substitute意为take the place of“代替”。故选A。 3．推理判断题。根据最后一段“Additionally, creating social rewards, like encouragement and support from a community with similar goals, can inspire positive changes.”可知，创造社会奖励，如来自具有相似目标的社区的鼓励和支持，可以激发积极的变化。由此推测，作者可能会赞同创造社会奖励可以帮助人们减少过度购物的欲望。故选D。 4．推理判断题。根据第二段“Minding the Climate: How Neuroscience Can Help Solve Our Environmental Crisis”，第四段“However, Duhaime stresses that our brains are not programmed to keep buying more and more.”，第五段“The best is not to stop buying things completely; a better solution may be to substitute the old rewards that we know aren’t good in the long run with new ones.”和最后一段“Buying used things could also help satisfy our desire to get more things without using more natural resources...Humans naturally like to connect with others, and this social support can lead to more eco-friendly choices.”可知，文中反复提到了神经元、购物和环境保护之间的关系，我们可以用采用更环保的方式来代替购物促使神经元分泌多巴胺，或者购买二手货物来满足我们的购物欲望。由此推测，作者的写作目的是引导人们在购物时做出环保的选择。故选C。 Being a teenager can be challenging, but it can also be exciting. You’re becoming more independent and making decisions for yourself. You are also learning to take risks and solve problems better than you could before. And changes are happening throughout your body, even in your brain. You can’t see the changes in your brain, but they’re affecting how you develop into an adult. At this time in your life, there is a process going on inside your brain that makes it work faster and more efficiently. Imagine that the structure of your brain is like a big road map. There are lots of roads leading to different destinations (终点). When you were a child, as you learned new things, your brain created more roads leading to different destinations. By the time you become a teenager, the most important places on the map have many different roads leading to them. Now your brain’s job is to make that map more efficient. It removes the roads that you don’t need and works to make the other roads faster. As a result, your experiences as a teenager actually affect the way that your brain develops. If you spend hours playing video games, what skills do you use? You learn to see something with your eyes and respond to it with your hands, right? As you develop those skills, your brain is making sure that the roads leading to them are especially fast and efficient. So, your video game playing could be preparing you for a career such as a fighter pilot, or even a surgeon. This is a great time for you to practice new skills and discover what you’re good at and what you love doing. Go out and try different activities, and stick with them if you think they’re useful. Remember that with everything you do, you’re shaping your brain for the future. 1．As a teenager, you are becoming more ________. A．challenging B．exciting C．independent D．difficult 2．According to Paragraph 2, how does the brain work in developing a teenager into an adult? A．By working more and more efficiently. B．By stopping learning new things. C．By finding more destinations. D．By changing its structure. 3．What does the underlined word in Paragraph 3 probably mean? A．触摸 B．反应 C．停止 D．阻断 4．According to the writer, what should teenagers do to shape the brain for the future? A．They should learn to be more efficient. B．They should try more and hold on to the useful activities. C．They should play more video games when possible. D．They should never stop studying and working. 5．What’s the main idea of the passage? A．How to play computer games well. B．How the brain changes at different ages. C．How the brain helps you to develop. D．What a teenager likes to do. 【答案】1．C 2．A 3．B 4．B 5．C 【导语】本文是一篇说明文。文章主要介绍了青少年的大脑的变化特点以及应该做一些事情来有意识地塑造你的大脑。 1．细节理解题。根据第一段“Being a teenager can be challenging, but it can also be exciting. You’re becoming more independent and making decisions for yourself.”可知，作为一个青少年，你变得越来越独立。故选C。 2．细节理解题。根据第二段“You can’t see the changes in your brain, but they’re affecting how you develop into an adult. At this time in your life, there is a process going on inside your brain that makes it work faster and more efficiently.”可知，通过越来越高的工作效率，大脑使青少年变成了成年人。故选A。 3．词义猜测题。根据“You learn to see something with your eyes and respond to it with your hands, right?”可知，玩电子游戏的青少年学会了用眼睛看东西，然后用手反应出来；据此可以推断划线单词“respond”意为“反应”。故选B。 4．细节理解题。根据最后一段“Go out and try different activities, and stick with them if you think they’re useful. Remember that with everything you do, you’re shaping your brain for the future.”可知，青少年应该多尝试，坚持进行有益的活动来塑造未来的大脑。故选B。 5．主旨大意题。综合全文可知，文章主要介绍了青少年的大脑的变化特点以及应该怎样锻炼大脑来帮助发展。故选C。 One thing you’ve probably already known by now is that ant brains are tiny! Ants are tiny insects, so their brains must be even smaller to fit inside their little heads. Elephants, on the other hand, are large animals. So it’s no surprise to learn that an elephant brain is large. But just how big is an elephant brain? Scientists tell us that the human brain weighs about 3 pounds. That s pretty big, considering the size of a human being. Elephant brains weigh 11~13 pounds—about four times the size of the human brain. Compared to a tiny ant brain, an elephant brain is thousands of times larger! But does brain size determine intelligence (决定智力)? Not necessarily. When thinking about brain size, it’s helpful to compare the size of the brain to the size of its owner. If you compare the ratio (比例) of brain to body weight in humans and elephants, you learn that this ratio is about 1:50 for humans and about 1:800 for elephants. So, for their size, humans have much bigger brains than elephants. Even though elephant brains aren’t all that big compared to their size, they re known for their intelligence and good memories. But what about ants and their brains? Of all the insects in the world, the ant has the largest brain. There are about 250, 000 brain cells (细胞) in an ant brain. And ants are widely considered to be the smartest insect in the world. Although scientists have learned a lot about the brain over the past hundred years, the brain is so complex (费解的) that it can’t be fully explained in simple words, such as size, and much of how the brain works remains a mystery. 1．The writer develops Paragraph 1 by ________. A．telling stories B．showing facts C．listing numbers D．asking questions 2．What information is mentioned in Paragraph 2? A．The size of an ant brain. B．The weight of an elephant. C．The height of an elephant. D．The weight of a human brain. 3．Why does the writer say humans have much bigger brains than elephants? A．Because human brains are bigger in size. B．Because human brains are much heavier. C．Because humans have more cells in their brains. D．Because humans have a higher ratio of brain to body weight. 4．From the last paragraph we can learn that ________. A．there is still a lot to learn about the brain B．scientists know almost nothing about the brain C．scientists will do more studies on the size of the brain D．the brain will remain a mystery for hundreds of years 5．In which part of a website can we find the material? A．Science. B．Culture. C．Life. D．People. 【答案】1．B 2．D 3．D 4．A 5．A 【导语】本文主要介绍了人类和一些动物大脑之间的区别。 1．推理判断题。根据“Ants are tiny insects, so their brains must be even smaller to fit inside their little heads. Elephants, on the other hand, are large animals. So it’s no surprise to learn that an elephant brain is large.”可知，第一段通过摆事实论证观点。故选B。 2．细节理解题。阅读第二段，并根据“Scientists tell us that the human brain weighs about 3 pounds.”“Elephant brains weigh 11~13 pounds一about four times the size of the human brain.”可知，第二段讲述了人脑的重量。故选D。 3．细节理解题。根据第三段“If you compare the ratio (比例) of brain to body weight in humans and elephants, you learn that this ratio is about 1:50 for humans and about 1:800 for elephants.”可知，人类的大脑比大象大得多是因为人脑与体重的比例更高。故选D。 4．细节理解题。根据最后一段“the brain is so complex (费解的) that it can’t be fully explained in simple words, such as size, and much of how the brain works remains a mystery”可知，关于大脑还有很多东西需要了解。故选A。 5．推理判断题。阅读全文可知，本文主要介绍了人类和一些动物大脑之间的区别，故可以在“科学”部分找到这些材料。故选A。 In the physical world, bullying (欺凌弱小) is a problem. In some schools the same thing happens too. Both parents and teachers are very worried and try many ways to solve it. But now it’s happening on the Internet too. People call it cyber-bullying. A 13-year-old girl from Chicago has her own idea to stop it. The young scientist Trisha Prabhu, 13, from Chicago, is working on a project named Rethink. It tells people to rethink before bullying. Trisha Prabhu’s study shows that over 50 percent of teens have experienced cyber-bullying. And 93 per-cent of teens won’t post (发布) hurtful things if someone tells them to rethink. Sometimes they just don’t know what they are doing. And there is a reason. The prefrontal cortex (脑前额皮质) of the human brain isn’t developed fully until the age of 25. It controls decision-making. From her research, Prabhu believes her Rethink tool can help. It finds out hurtful messages and reminds users to think again. 1．According to the first paragraph, who may be someone bullied by others? A．Li Ming, who is heavy. B．Jim, who is strong. C．Linda, who is short. D．Lucy, who is tall. 2．What does the underlined word “cyber-bullying” mean? A．网上交友 B．网络诈骗 C．网上捐款 D．网络欺凌 3．Why do most teens post hurtful things? A．They want to bully someone. B．They don’t know what they are doing. C．Others ask him to do so. D．They have fun doing it. 4．Who may easily post hurtful things according to the passage? A．A 15-year-old boy. B．A 26-year-old girl. C．A 40-year-old man. D．A 70-year-old woman. 【答案】1．C 2．D 3．B 4．A 【导语】本文是一篇说明文。文章主要介绍了一个十三岁的女孩发明了“重新思考”程序来阻止网络欺凌。 1．推理判断题。根据第一段“In the physical world, bullying is a problem.”可知，在现实世界中，欺凌是一个问题。由常识推断欺凌通常是以大欺小，以强凌弱；选项C“琳达，个子矮小。”符合被欺凌的对象。故选C。 2．词义猜测题。根据“But now it’s happening on the Internet too. People call it cyber-bullying.”可知，cyber-bullying是发生在网络上的欺凌。故选D。 3．细节理解题。根据“And 93 per-cent of teens won’t post hurtful things if someone tells them to rethink. Sometimes they just don’t know what they are doing.”可知，大部分青少年有时不知道他们自己在做什么才发布伤害性的内容。故选B。 4．推理判断题。根据第五段“The prefrontal cortex of the human brain isn’t developed fully until the age of 25. It controls decision-making.（人类大脑的前额皮质直到25岁才发育完全。它控制着决策。）”可推断人类25岁之前大脑前额皮质发育不完全，控制决策能力弱，容易发布有害的内容；选项A“一个15岁的男孩。”符合语境。故选A。 In many movies, there are sometimes characters who have chips (芯片) put in their heads. This might come true very soon. Neuralink, US businessman Elon Musk’s company, has developed a chip that was implanted into the head of a pig. On Aug 28, Musk did a livestream on how it works by showing the signal transmission. The chip is the size of a coin. It has over 3,000 electrodes (电极) that can monitor about 1000 neurons (神经元). So in the livestream while the pig was breathing, people could see its brain activity on a large screen. If this technology is used on humans, after the chip picks up signals in the brain, these signals will be sent to nearby computers or APPs and then be translated into actions, such as moving an arm or leg. It’s not a dream for people to use a small chip to change their life with their minds. For now the goal is to use it to help disabled people. They could control artificial limbs (假肢) with their minds and move around more easily. People could even use the technology to play video games or drive cars. However, there is still a long way to make these things happen. The chip can send signals from about 500 neurons in the pig’s brain. However, the human brain has 80 billion neurons. Also, it is not safe to implant the chip yet, it could harm the brain. Hackers (黑客) could also hack into the chip and control others thoughts and feelings. There is another problem, too. When humans are connected to computers, are they still humans? 1．What was Musk’s livestreaming about? A．How the chip works in many movies. B．How the chip in the pig’s head works. C．How to implant a chip into a pig’s head. D．How to use a chip to control a pig. 2．What is the right process of signal transmission according to Paragraph 3? A．brain→chip→computer B．brain→action→computer C．chip→brain→action D．chip→computer→brain 3．What does Paragraph 4 mainly tell us about the technology? A．The ability that it has to control brain activity. B．The effects that it will have on people’s life C．The problems that it might bring to humans. D．The way that it works. 4．How does the writer feel about the development of the chip according to the last paragraph? A．Hopeful. B．Excited. C．Pleased. D．Doubtful. 【答案】1．B 2．A 3．B 4．D 【导语】本文主要介绍了在大脑中植入芯片的一项新技术。目前已经成功植入到猪的大脑里，未来可能会植入到人的大脑里，但是会给人类带来好处同时也存在很多风险。 1．细节理解题。根据“On Aug 28, Musk did a livestream on how it works by showing the signal transmission.”可知直播内容是关于芯片在猪的脑子里是如何工作的。故选B。 2．细节理解题。根据“If this technology is used on humans … such as moving an arm or leg.”可知正确的信号传输过程是：大脑→芯片→计算机。故选A。 3．主旨大意题。根据“It’s not a dream for people to use a small chip to change their life with their minds.”及后面举例可知，本段主要讲了芯片可能对人们的生活产生的影响。故选B。 4．推理判断题。根据“However, the human brain has 80 billion neurons … When humans are connected to computers, are they still humans?”可推断作者对这项技术应用到人类身上表示担忧，因此是持怀疑的态度。故选D。 2 原创精品资源学科网独家享有版权，侵权必究！ 7 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 $$ Unit5 The human brain 单元话题（人类大脑）阅读理解15篇（分层练习） The human brain is very small and light. Its weight is only 2% of our total body weight, but it needs about 20% of the oxygen(氧气) that our bodies take in. We can’t think well if our brains aren’t getting enough oxygen, so always make sure there’s enough oxygen in the air when you need to remember something. How can you improve your memory? Here are some suggestions. When you want to remember something, tell someone about it. This way the new information becomes easier to remember. Later on, thinking about the conversation will remind you of the thing. Our memory works well when we’re asleep. If you want to remember something, try going to sleep right after learning it. If you have to remember something big, break it down into small parts. It’s easier to remember 198756430387 if you break it down into four small parts:198-756-430-387. If you want to remember some information and you can’t, don’t get angry. Just relax and try again later. One of the best ways of remembering things is to make “pictures” in your mind. If you want to buy many things including bread, flowers, gloves, a notebook and oil, just make up a story with them: Mary was hungry and was looking for some BREAD．She opened the fridge, and saw it was full of FLOWERS. She decided to wear her GLOVES and leave the house. But she tripped over a bottle of OIL and found her important NOTEBOOK under the sofa ... Let yourself be surprised by your memory! 1．For a good memory, what did the writer first talk about the importance of? A．Enough oxygen. B．Strong light. C．A big brain. D．Proper body weight. 2．Which of the following can’t help you to remember things according to the passage? A．Sleep. B．Relax your mind. C．Tell someone about them. D．Do sports. 3．Which of the following words can be remembered most easily according to the passage? A．responsible B．responsibility C．res-pon-si-ble D．response 4．The story about Mary is an example of ________. A．why going shopping is fun B．how “pictures” help improve memory C．how important it is to be careful D．why we should learn to draw pictures 5．What does the text mainly talk about? A．How to improve your sleeping habit. B．How to get more oxygen for your memory. C．How to improve your memory. D．How to increase your weight. We humans have walked on the moon, treated illness and have built buildings, from ancient houses to tall modern buildings. So what is it that makes us so special? The answer is our brains. The human brain can control our thoughts (行为). Below are more facts about this natural supercomputer. Scientists have discovered that while most areas of the brain finish forming before we leave high school, the areas that deal with planning, reasoning, the brain starts going down slowly, making our mid-20s the time when our brains are truly the strongest in reaction! Besides, three-quarters of the brain’s weight is water. If the brain is short of water, it can cause a headache and even the memory (记忆力) will go down. We often think that a bigger brain means a better brain. However, a bigger brain does not always mean a smarter brain. For example, elephants have much larger brains than humans, and can’t deal with the information. Our brains aren’t the biggest, but they are the brightest. The brain’s size is important, but the structure (结构) is even more so. Of course, these aren’t the only interesting things about the brain. In fact, the brain still has quite a few secrets for scientists to solve. 1．What is the purpose of Paragraph 1? A．To lead in the topic of the text. B．To describe what humans can do. C．To introduce differences of brains. D．To explain why the brain can control humans. 2．How does the writer tell us a bigger brain does not always mean a smarter brain in Paragraph 4? A．By giving an example. B．By listing numbers. C．By giving data. D．By telling a story. 3．Which of the following decides a better brain? A．The brain’s size. B．The brain’s shape. C．The brain’s organization. D．The brain’s weight. 4．What do you know from the end of the text? A．Humans have a full understanding of the brain. B．Humans still have a long way to study the brain. C．Humans know nothing about the study of the brain. D．Humans know few interesting things about the brain. 5．What’s the text mainly about? A．Different ways to use human brains. B．Interesting facts about human brains. C．The important changes of human brains. D．Reasons for the importance of human brains. The human brain is amazing. People think and solve problems with their brains. What if a city had a “smart brain”? There might be something like that in Beijing! Beijing’s Haidian district has been working on it since 2018. Recently, they added a big data (大数据) model called Jiuzhou to make the city brain even better. It uses artificial intelligence (人工智能AI) to quickly collect data and highlight what people care about. It can give suggestions for fixing problems within minutes, making city management smarter. To explain how it works, the official asked it to name the top three streets with the best noise pollution solutions. The big model quickly found the streets that did well in fixing noise pollution in early August 2023. It also suggested ways to deal with the problem. The district plans to build 572 smart and safe communities using technologies like smart access (准入) control and facial recognition (识别). These technologies help keep people safe by quickly knowing what problems might happen and improving how the police deal with situations. The district also plans to watch out for cars that make black smoke. This system has machines on important roads to catch black smoke, an online system that checks in real time, and sensors (感应器) that study the bad things in the air. This can make sure that the important roads are always watched carefully. It works together with the police and transportation teams to stop cars that make black smoke and keep the air clean. Smart governance (治理) wants to make the city work better and improve people’s lives by using smart technology and analyzing data. 1．What does the underlined word “it” in Paragraph 1 refer to? A．Human brain. B．Haidian District. C．The city brain. D．Jiuzhou. 2．What are the advantages of the city AI? a. Collecting data                               b. Catching black smoking c. Giving suggestions                           d. Fixing noise pollution A．a and b B．c and d C．b and d D．a and c 3．Through AI services, Haidian district plans to ________. A．put 572 kinds of technologies into use B．clean the cars with black smoke C．name more busy streets D．improve people’s safety 4．Which is the right structure of the passage? (①=Paragraph 1      ②=Paragraph 2,……) A． B． C． D． 5．What is the best title for the passage? A．High-Tech Changes everyone B．“City Brain”Guides the future C．Tomorrow of“Human Brain” D．The importance of people’s safety The human brain is very small and light (only 2% of our total body weight), but it needs about 20% of the oxygen that our body takes in. We can’t think well if our brain isn’t getting enough oxygen, so always make sure there’s enough oxygen in the air when you need to learn or remember something! No one can remember everything, but everyone can learn how to improve their memory (记忆力). Here are some suggestions. None of them can make your memory 100% perfect, but all of them are helpful. ●When you want to remember something, tell someone about it. This way the new information becomes easier to remember. Later on, just thinking about the conversation will remind (提醒) you of the thing. ● ▲ . If you want to remember something, try going to sleep right after learning it. ●If you have to remember something big, break it down into smaller parts. It’s easier to remember 198756430387 if you break it into four smaller parts: 198-756-430-387. ●If you want to remember a piece of information, and you can’t, don’t get angry. Just relax and try again later. ●One of the best ways of remembering things is to make “pictures” in your mind—and it’s fun, too! Scientists say that our brain works a lot in pictures. So sometimes, if we want to buy many things including bread, flowers, gloves, a notebook, and oil, just make a crazy story with them as you like: Lisa was hungry and was looking for some BREAD．She opened the fridge, and saw it was full of FLOWERS. She decided to put on her GLOVES and leave the house. But she tripped over her NOTEBOOK and fell on a bottle of OIL… Let yourself be surprised by your memory! 根据材料内容选择最佳答案，并将其标号填入题前括号内。 1．The writer first talked about the importance of ________ for a good memory. A．a big brain B．strong light C．enough oxygen D．proper body weight 2．Which of the following may be helpful for you to remember things? A． B． C． D． 3．The story about Lisa is an example of ________. A．why going shopping is fun B．how important it is to be creative C．how pictures help improve memory D．why we should learn to draw pictures 4．Which of the following is the best to fill in the ▲ in Tip 2? A．Our memory works well when we are asleep. B．Our memory will be improved if we are healthy. C．If you want to remember something, just go to bed. D．The earlier you go to bed, the better memory you will have. 5．What’s the text mainly about? A．How to improve our sleep habit. B．How to get more oxygen for our memory. C．How to remember important things. D．How to improve our memory. ① Everybody has a brain, but not many people know how the brain works. Some people believe that the brain is like the hard disk (磁盘) of a computer. We use it to store things-pictures, language (words, texts, sounds) and so on. Others compare the brain to a huge container with lots of shelves and boxes in it. We put information into these boxes and hope to find it again later. ②The brain is not a computer disk, And it isn’t a container. Look at the picture here. It looks a bit like weeds (杂草) in a garden, doesn’t it? The picture actually shows a child’s neocortex—a part of the brain. You can guess what happens—more ‘weeds’ grow as the child gets older. Scientists call these neuronal (神经元的) networks. What makes them grow? Learning! “Learning is brain change,” says Professor James Zull from Case Western University in Cleveland, Ohio, USA．“Without learning, nothing changes in the brain. For every new word you learn in your English lesson, every problem you solve in maths, every new song you learn to sing, a neuronal network grows in your brain and the brain changes.” ③There are many ways to make your brain stronger. The more neuronal networks we grow, the better we can think and the better we remember. You may wonder if there is anything you can do to make the networks in your brain grow better. Professor Zull says yes, there is. He says that brain change is the strongest in the following situations: ·You are interested in and like what you are learning; · You are in control of what you learn; · You get challenging tasks that make you think hard. Choose a right way to learn something, and you may develop your brain better than you think. 根据材料内容选择最佳答案。 1．How does the writer start this text? A．By telling a story. B．By listing numbers. C．By asking a question. D．By listing two different opinions. 2．What does the underlined word container mean? A．A disk used in the computer to store things. B．A wild plant that grows in a garden. C．An object used to carry or store things. D．A task that helps to develop your brain. 3．Our brain changes when we ________. A．learn languages B．have problems C．enjoy songs D．plant trees 4．What’s the main idea of paragraph 3? A．The brain is a fantastic computer. B．What people believe about the brain. C．How to make your brain stronger. D．We remember better when things are easy. 5．What’s the best title for the text? A．Interest is the best teacher B．Meeting life’s challenges C．Never too old to learn D．Learning is brain change What time of day do you feel most alert(清醒的)? Are you more of a morning person? Or does your brain need a few hours to get going? A lot of research suggests that we should pay attention to our body clock. It can tell us what time of day we are be stable to perform, according to the Wall Street Journal(华尔街日报). When it comes to the human brain, many people work best later in the morning. This is because the body’s temperature takes time to rise through the day. Taking a warm shower when you wake up can help speed this up. But everyone’s body clock is different. Morning people will rise early and work better early in the day. Evening people will wake later but their brain will work better toward the end of the day. Research shows that we’re better at some activities at certain times of the day. Physical performance is at its best between 3 pm and 6 pm, so it’s better to exercise later in the day. Between noon and 4 pm, people begin to get distracted（思想不集中的）. This is partly because our brain becomes less alert after we eat a big meal. Research also shows that we become sleepy around 2 pm. Finally, it is best to eat during our active periods. This allows our body to burn calories better and stops our blood sugar levels from getting too high. 1．Many people perform best later in the morning because ________. A．they can’t get up very early B．That’s when the brain wakes up C．they have to take a shower first D．the body’s temperature needs time to rise 2．Evening people had better ________. A．rise late and work in the morning B．wake later and work in the evening C．rise early and work in the morning D．wake later and work after midnight 3．According to the research, which of the following is TRUE? A．It’s better to do exercise in the afternoon. B．We perform better after eating a big meal. C．sleeping at 2 pm is not good for our health. D．Our body burns calories better at night. 4．What is the passage mainly about? A．Research about time. B．The best time to do different things. C．Different periods of a day. D．Brain activities at different places. Are you good at math? How about writing poems or painting beautiful pictures? Do you love to sing? It all depends on whether you are a “right-brain” or a “left-brain” person. The human brain is a truly amazing organ (器官). It’s not easy to study the brain, but science is slowly beginning to understand how it works. The brain is divided into two parts: the left side and the right side. Some people use the left side of the brain more than the right. Others use the right side more than the left. Left-brain people are good at math, science and reading. They do well in school. They can easily focus on detailed tasks. They like to work independently, and often enjoy studying alone. Right-brain people are more artistic. They love music and singing. They like to be around lots of people. They don’t like to sit still. Mind mapping (思维导图) is designed to use both sides of your brain—mind mapping involves your right and left brain thinking. Our ability to speak and communicate seems to have its origin in the unlikely pairing of the left brain and the right hand. The fact that you use one side of your brain more doesn’t mean that you don’t use the other side. It just means that you prefer one side to the other. One way is not better than the other. It only shows the way you learn best. 1．What’s the writer’s purpose of raising three questions in Paragraph 1? ________ A．To compare the readers carefully. B．To lead up to the topic of discussion. C．To know about the readers’ interests. D．To suggest some hobbies to readers. 2．Left-brain people would like to do the things except ________. A．reading books B．doing experiments C．drawing pictures D．doing math exercises 3．What does the underlined word “involves” in Paragraph 4 probably mean in Chinese? ________ A．包含 B．参加 C．解决 D．破坏 4．What can we infer from the last paragraph? ________ A．People only use one side of the brain. B．Two sides of the brain can’t work together. C．One side of the brain is better than the other D．People have different preferences for the brain use. 5．What would be the best title for the text? ________ A．The Role of the Brain B．Why the Brain Works C．Left Brain or Right Brain D．Mind mapping: a Way of Brain Use Human beings are amazing creatures. We have walked on the moon, cured diseases, and built many structures, from ancient Great Wall to modern buildings. So what is it that makes us so special? The answer is our brains. The human brain is a fantastic body part that controls everything from your breathing to your memories and imagination. Below are several more surprising facts about this natural supercomputer. The brain does not fully grown until age 25. Scientists have discovered that while most areas of the brain finish forming before we leave high school, the areas that deal with planning and reasoning aren’t fully grown until one’s 20s. What’s more, after the age of 24, the brain actually starts going into a slow drop, making our 20s the time when our brains are truly at their top! Three-quarters of the brain is water. As a result, our brain is always in great need of water, which is one reason why it’s important to drink lots of water. The brain’s large water content also affects its texture (质地), which is similar to puddings. Our brains aren’t the biggest, though being the brightest. We often think that a bigger brain equals a better brain. And while humans do have large brains, ours aren’t the largest in the animal world. Besides, we don’t even have the largest brains among humans. Neanderthals (穴居人) —though now disappear—had brains that were actually 10 percent larger than ours. This doesn’t mean they were smarter than us, though. Brain size is important, but the brain’s structure is even more so. Indeed, the human brain deals with a lot of hard work in a small space. Of course, these aren’t the only interesting things about the brain. In fact, our brains still have a lot of secrets for scientists to find out. Left hemisphere (半球） The left hemisphere mainly works for abstract (抽象) thinking, while also controlling the movement of the right side of the body. And the left hemisphere helps with language processing.                  Right hemisphere The right hemisphere helps to understand space relationships, process pictures, and control the movement of the left side of the body. Moreover, the right hemisphere deals with your moods. 1．How does the writer begin the article? A．By comparing animals’ brains. B．By giving an answer to a question. C．By providing different numbers. D．By describing a special experience. 2．What do we know about human brains according to the passage? A．They work best in the thirties. B．They are the largest in the world. C．They play a big role in breathing. D．They are similar to puddings in colour. 3．What may a patient who hurt his left hemisphere have difficulty in? A．Giving directions. B．Speaking to others. C．Feeling happy. D．Drawing pictures. 4．Which of the following is true about brains? A．Scientists already have a deep understanding of brains. B．We can help our brain grow faster by doing more exercise. C．The larger the brain size is, the brighter the animal will be. D．To help keep our brain healthy, drinking water is necessary. You must think a computer is the best thing in the world, right? You must think it works at a super speed and can do everything? Well, it’s not! In fact, the brain (大脑) is much more powerful than any super computer! Think about when a glass is just about to fall off the table. Your brain controls everything that you need to do to save that glass from falling. First your eyes check out what’s going on, then tell your brain, and your brain. decides how quickly you need to react, and then your muscles (肌肉) go into action. That is just from your brain. No computer could ever come close to that! The brain weighs just 3 pounds, but it controls everything you do from thinking, learning, feeling even to breathing and your heart beating. Even though the brain is just 2% of your body weight, it uses around 20% of all your energy in your body. That is a lot for such a small organ (器官). There are about 100 billion tiny (微小的) little cells (细胞) in your brain. There are so many that it would take you over 3,000 years to count them all! Your brain stops growing when you’re 18, but it actually keeps on developing and learning new things. So your parents are really super smart! You won’t be able to fool them! Believe it or not. your brain NEVER stops working. Even during sleeping, the brain works for long-term memory establishment (建立). It is realized that the brain is the second organ in the body as the heart that never stops during human lives. So everyone should be proud of such a gift of nature. 根据材料内容选择最佳答案。 1．In Paragraph 1, the writer wants to tell us _________. A．eyes and muscles react quickly B．the brain is more powerful than any computer C．the computer is the best thing in the world D．the brain controls everything in your body 2．In Paragraph 2, the underlined word “That” refers to (指的是) ________. A．the body weight B．2% of the body weight C．all energy in the body D．around 20% of the energy in the body 3．Which is RIGHT according to the passage? A．The brain keeps on developing during human lives. B．The brain is the only organ that never stops. C．The brain keeps growing during human lives. D．The brain doesn’t work during sleeping. 4．Which word can best describe the brain according to the passage? A．Magic. B．Quick. C．Light. D．Developing. 5．You are fifteen. Is your brain still growing now? A．No, it isn’t. B．Yes, it is. C．It has stopped growing since two years ago. D．It will grow all my life. A myth is something that is not correct, but many people believe it. There are a lot of myths about the human brain. One of the biggest myths is that we only use 10% of our brains. The next part of the myth is that if we can learn to use the rest of our brains, then we’ll be much smarter. People say this all the time, but it’s completely not true! The truth is that although we don’t know everything about the human brain, we know that each part of it has an important function. Modern scientists think the “10% myth” silly. Another popular myth is about being “right brained” or “left brained”. According to this myth, people who use the right side of their brains are more artistic and creative. People who use the left side of their brains are better at math and science. This is as popular as the 10% myth, and it’s also wrong. In 2013, a study at an American university tested the right brain and left brain myth. The study shows we use the left brain as much as the right brain. It’s true that we use different parts of our brains for different things. We use our left side for language more, and our right side when we need to pay attention. But there is no evidence that creative people use the right side more or that scientific people use the left side more. We’ve talked about myths, so let’s look at a few interesting facts about the brain. First of all, the brain feels no pain. Second, about 75% of the brain is made up of water. It’s also the fattest organ in your body. Here’s another interesting fact about the brain. Around the time you turn 18 years old, it stops growing. 1．What do scientists think of the “10% myth”? A．Not important. B．Not useful. C．Not true. D．Not interesting. 2．What does the underlined word “This” in Paragraph 3 refer to? A．The left brain myth. B．The right brain and left brain myth. C．The use of human brains. D．The study of an American university. 3．According to the facts mentioned in the passage, who may use the left brain more? A．Robert, who is learning English. B．Kate, who is drawing pictures. C．Jenny, who is designing clothes. D．Jacob, who is playing the piano. 4．Which of the following is TRUE about the human brain? A．It is growing all lifelong. B．The right side is used more by artists. C．Some parts of it are not used at all. D．Three quarters of it is made up of water. 5．What does the passage mainly talk about? A．The growing of the brain. B．Different functions of the brain. C．The right brain and left brain. D．Myths and facts about the brain. Every time I look at the many recent orders on my online shopping account, or I receive a new package on my doorstep, I get a feeling of happiness that is hard to give up. Although I know that my shopping habits are bad for the planet, I just can’t stop. But Ann-Christine Duhaime’s new book, Minding the Climate: How Neuroscience Can Help Solve Our Environmental Crisis, has helped me understand that my desire (渴望) to keep buying things isn’t necessarily a personal weakness—it’s the way our brains have developed. According to Duhaime, we managed to stay alive even when things were hard because our brains learned to repeat decisions like moving towards a tasty treat or backing away from danger. Today, we have some 86 billion neurons (神经元) in the brain continuously working to strengthen rewarding behavior—a kind of action that results in a positive outcome, which makes a person want to do it again. As the neurons work, they produce dopamine (多巴胺), which makes our rewarding behavior feel even better than usual. We actively look for more dopamine, and at the same time, learn to repeat the actions that lead to it. However, Duhaime stresses that our brains are not programmed to keep buying more and more. All humans are different, and our brains work differently depending on our genetics (遗传性) and our life experiences. The challenge is that our brain systems are designed for short-term decision-making. When we buy something new, we get rewarded immediately. But the long-term worsening of the planet is harder for the reward centers of our brains to understand, even if we know about it. And there may be some ways to break the cycle. The best is not to stop buying things completely; a better solution may be to substitute the old rewards that we know aren’t good in the long run with new ones. For example, you can have a glass of milk, which gives you fewer calories, instead of eating chocolate just before bed for comfort. Once you start losing weight, the reward of being able to fit into your old clothes feels as good as what the chocolate would do. We need that same substitution for shopping. Buying used things could also help satisfy our desire to get more things without using more natural resources. Additionally, creating social rewards, like encouragement and support from a community with similar goals, can inspire positive changes. Humans naturally like to connect with others, and this social support can lead to more eco-friendly choices. 1．What do you know about human brains from the passage? A．The way brains work won’t be influenced by life experiences. B．Neurons play a role in people’s repeating rewarding behavior. C．Less dopamine is produced when people get positive outcomes. D．Brains don’t care about the short-term effects of people’s actions. 2．The word “substitute” in Paragraph 5 probably means “________”. A．take the place of B．look forward  to C．get ready for D．make up for 3．The writer probably agrees that ________. A．over-shopping harms the development of the human brain B．keeping buying gets in the way of people finding happiness C．the planet is free from the influence of people’s buying behavior D．creating social rewards can help people reduce the desire to over-shop 4．What is the writer’s main purpose in writing this passage? A．To explain why over-shopping is not a personal weakness. B．To show how dopamine makes people crazy about shopping. C．To guide people to make eco-friendly choices when shopping. D．To encourage people to buy used things to protect the environment. Being a teenager can be challenging, but it can also be exciting. You’re becoming more independent and making decisions for yourself. You are also learning to take risks and solve problems better than you could before. And changes are happening throughout your body, even in your brain. You can’t see the changes in your brain, but they’re affecting how you develop into an adult. At this time in your life, there is a process going on inside your brain that makes it work faster and more efficiently. Imagine that the structure of your brain is like a big road map. There are lots of roads leading to different destinations (终点). When you were a child, as you learned new things, your brain created more roads leading to different destinations. By the time you become a teenager, the most important places on the map have many different roads leading to them. Now your brain’s job is to make that map more efficient. It removes the roads that you don’t need and works to make the other roads faster. As a result, your experiences as a teenager actually affect the way that your brain develops. If you spend hours playing video games, what skills do you use? You learn to see something with your eyes and respond to it with your hands, right? As you develop those skills, your brain is making sure that the roads leading to them are especially fast and efficient. So, your video game playing could be preparing you for a career such as a fighter pilot, or even a surgeon. This is a great time for you to practice new skills and discover what you’re good at and what you love doing. Go out and try different activities, and stick with them if you think they’re useful. Remember that with everything you do, you’re shaping your brain for the future. 1．As a teenager, you are becoming more ________. A．challenging B．exciting C．independent D．difficult 2．According to Paragraph 2, how does the brain work in developing a teenager into an adult? A．By working more and more efficiently. B．By stopping learning new things. C．By finding more destinations. D．By changing its structure. 3．What does the underlined word in Paragraph 3 probably mean? A．触摸 B．反应 C．停止 D．阻断 4．According to the writer, what should teenagers do to shape the brain for the future? A．They should learn to be more efficient. B．They should try more and hold on to the useful activities. C．They should play more video games when possible. D．They should never stop studying and working. 5．What’s the main idea of the passage? A．How to play computer games well. B．How the brain changes at different ages. C．How the brain helps you to develop. D．What a teenager likes to do. One thing you’ve probably already known by now is that ant brains are tiny! Ants are tiny insects, so their brains must be even smaller to fit inside their little heads. Elephants, on the other hand, are large animals. So it’s no surprise to learn that an elephant brain is large. But just how big is an elephant brain? Scientists tell us that the human brain weighs about 3 pounds. That s pretty big, considering the size of a human being. Elephant brains weigh 11~13 pounds—about four times the size of the human brain. Compared to a tiny ant brain, an elephant brain is thousands of times larger! But does brain size determine intelligence (决定智力)? Not necessarily. When thinking about brain size, it’s helpful to compare the size of the brain to the size of its owner. If you compare the ratio (比例) of brain to body weight in humans and elephants, you learn that this ratio is about 1:50 for humans and about 1:800 for elephants. So, for their size, humans have much bigger brains than elephants. Even though elephant brains aren’t all that big compared to their size, they re known for their intelligence and good memories. But what about ants and their brains? Of all the insects in the world, the ant has the largest brain. There are about 250, 000 brain cells (细胞) in an ant brain. And ants are widely considered to be the smartest insect in the world. Although scientists have learned a lot about the brain over the past hundred years, the brain is so complex (费解的) that it can’t be fully explained in simple words, such as size, and much of how the brain works remains a mystery. 1．The writer develops Paragraph 1 by ________. A．telling stories B．showing facts C．listing numbers D．asking questions 2．What information is mentioned in Paragraph 2? A．The size of an ant brain. B．The weight of an elephant. C．The height of an elephant. D．The weight of a human brain. 3．Why does the writer say humans have much bigger brains than elephants? A．Because human brains are bigger in size. B．Because human brains are much heavier. C．Because humans have more cells in their brains. D．Because humans have a higher ratio of brain to body weight. 4．From the last paragraph we can learn that ________. A．there is still a lot to learn about the brain B．scientists know almost nothing about the brain C．scientists will do more studies on the size of the brain D．the brain will remain a mystery for hundreds of years 5．In which part of a website can we find the material? A．Science. B．Culture. C．Life. D．People. In the physical world, bullying (欺凌弱小) is a problem. In some schools the same thing happens too. Both parents and teachers are very worried and try many ways to solve it. But now it’s happening on the Internet too. People call it cyber-bullying. A 13-year-old girl from Chicago has her own idea to stop it. The young scientist Trisha Prabhu, 13, from Chicago, is working on a project named Rethink. It tells people to rethink before bullying. Trisha Prabhu’s study shows that over 50 percent of teens have experienced cyber-bullying. And 93 per-cent of teens won’t post (发布) hurtful things if someone tells them to rethink. Sometimes they just don’t know what they are doing. And there is a reason. The prefrontal cortex (脑前额皮质) of the human brain isn’t developed fully until the age of 25. It controls decision-making. From her research, Prabhu believes her Rethink tool can help. It finds out hurtful messages and reminds users to think again. 1．According to the first paragraph, who may be someone bullied by others? A．Li Ming, who is heavy. B．Jim, who is strong. C．Linda, who is short. D．Lucy, who is tall. 2．What does the underlined word “cyber-bullying” mean? A．网上交友 B．网络诈骗 C．网上捐款 D．网络欺凌 3．Why do most teens post hurtful things? A．They want to bully someone. B．They don’t know what they are doing. C．Others ask him to do so. D．They have fun doing it. 4．Who may easily post hurtful things according to the passage? A．A 15-year-old boy. B．A 26-year-old girl. C．A 40-year-old man. D．A 70-year-old woman. In many movies, there are sometimes characters who have chips (芯片) put in their heads. This might come true very soon. Neuralink, US businessman Elon Musk’s company, has developed a chip that was implanted into the head of a pig. On Aug 28, Musk did a livestream on how it works by showing the signal transmission. The chip is the size of a coin. It has over 3,000 electrodes (电极) that can monitor about 1000 neurons (神经元). So in the livestream while the pig was breathing, people could see its brain activity on a large screen. If this technology is used on humans, after the chip picks up signals in the brain, these signals will be sent to nearby computers or APPs and then be translated into actions, such as moving an arm or leg. It’s not a dream for people to use a small chip to change their life with their minds. For now the goal is to use it to help disabled people. They could control artificial limbs (假肢) with their minds and move around more easily. People could even use the technology to play video games or drive cars. However, there is still a long way to make these things happen. The chip can send signals from about 500 neurons in the pig’s brain. However, the human brain has 80 billion neurons. Also, it is not safe to implant the chip yet, it could harm the brain. Hackers (黑客) could also hack into the chip and control others thoughts and feelings. There is another problem, too. When humans are connected to computers, are they still humans? 1．What was Musk’s livestreaming about? A．How the chip works in many movies. B．How the chip in the pig’s head works. C．How to implant a chip into a pig’s head. D．How to use a chip to control a pig. 2．What is the right process of signal transmission according to Paragraph 3? A．brain→chip→computer B．brain→action→computer C．chip→brain→action D．chip→computer→brain 3．What does Paragraph 4 mainly tell us about the technology? A．The ability that it has to control brain activity. B．The effects that it will have on people’s life C．The problems that it might bring to humans. D．The way that it works. 4．How does the writer feel about the development of the chip according to the last paragraph? A．Hopeful. B．Excited. C．Pleased. D．Doubtful. 2 原创精品资源学科网独家享有版权，侵权必究！ 7 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 $$