Unit 4 Computers 单元话题短文首字母填空练习-2024-2025学年九年级英语上册单元重难点易错题精练（牛津上海版）

Unit 4 Computers 单元话题短文首字母填空练习 （24-25九年级上·上海静安·阶段练习）     Read the passage and fill in the blanks with proper words（在短文的空格内填入适当的词，使其内容通顺，每空格限填一次，首字母已给） Kids are born for science. This idea may surprise you because science seems d 1 to learn. Yet it really holds water and science learning is likely to make a great d 2 in kids’ lives. The most important part of science is a mixture of t 3 and experiment called the scientific method. It’s where you start with an idea, create a way to explain your idea, and show what you learned based on facts. Learning to follow this process helps you think logically (逻辑地) and carefully. One of the greatest thing we can teach our children is to love learning. Learning science is a great way to do so. Children are a 4 by science because much of science is hands-on. Nothing draws a child to sitting up and taking notice like science experiments. Science opens doors to many s 5 at school. Building love for science can be helpful in other areas of study. For example, one cannot love science for very long without becoming good at its language — math! So, science encourage children to study math. An interest in science is an interest in how things were once understood compared to how they are understood now. As a result, studying science leads itself easily to studying history. Science is the b 6 thing for much of our life. The science of famring shows how our food is produced; biomedical (生物医学的) science keeps us healthy; e 7 our beds these days are designed according to scientific facts. We almost eat, sleep and breath with the help of science! （24-25九年级上·上海黄浦·阶段练习）Read the passage and fill in the blanks with proper words(在短文的空格内填入适当的词，使其内容通 顺，每空格限填一词，首字母已给) Everybody’s Tweeting With the words “just setting up my tweet”, Twitter co-founder Jack Dorsey launched a site that would change how we communicate forever. Twitter was originally created as a messaging system for a podcasting website, but it takes on a life of its own as people realize it o 1 them the power to connect with millions of people instantly. But what are we using it for, and just how is Twitter changing the way we do things? Perhaps the greatest effect Twitter has had is on breaking news. Before Twitter, news had to get the a 2 of a journalist, who then had to make sure the news was accurate and true before finally broadcasting it on the radio or TV. These days a 3 who happens to be in the right place at the right time with a Twitter account can post news the second it happens. With retweets it can be half around the world in seconds. A perfect example of this was when a US flight made an emergency landing in the Hudson River in New York City. “There’s a plane in the Hudson. I’m on the ferry going to pick up the people. Crazy!” is how eyewitness Janis Krums broke the story to the world with this Tweet and a photo of the unusual event. Young people have always loved to follow their pop idols, and Twitter has made it a whole lot easier. Before the Internet, teenagers used to join the fan clubs of their idols and write letters to their heroes. If they were l 4 two weeks later they’d get a reply written by the club secretary. Today’s teenagers don’t need to wait. By following their idols on Twitter they get all the news the minute it happens. They get to hear what they had for breakfast, what they did the night before, what they’re thinking as they sit waiting for a plane. They get to hear it d 5 from their idols themselves. Twitter allows people who think the same way to get t 6 and do something about the things they care about. They can share information, organize campaigns and put p 7 on governments and big businesses to change. It allows people to stand up to things such as cyber bullying, sexism and racism. Twitter has given the man and woman on the street the power to make a difference. （23-24九年级上·上海浦东新·期中）Read the passage and fill in the blanks with proper words.（在短文的空格内填入适当的词，使内容通顺，每空格限填一词，首字母已给） According to UNESCO (联合国教科文组织), there are 740 million people unable to read or write in this world. And 250 million children of primary school age have no basic reading and writing skills. However, reading makes everything p 1 in life: education, work and escaping poverty (贫困). Considering that, the Global School Community aims to bring digital books to all the children of the world and their families. Digital technology makes a real difference. It can reach across the world and is fairly inexpensive. The Global School Community makes e-books available to children all around the world, e 2 through mobile phones, Ipads or computers, saving the cost of making books and transport. Technology also helps improve our communication skills. Through the use of technology, teachers and children around the world can meet online to s 3 lessons and discuss ideas. Remote schooling (远程教学) is one example of the success of communication through the Internet. The first books a child reads can have a great e 4 on that child. The greater it is, the more likely the child is to continue reading and learning throughout his life. E-books, which are a 5 the electronic editions (版本) of printed books, not only provide knowledge and information, but help people grow healthily in mind. They can provide hours of entertainment and can connect schools all over the world. Studies have shown that children make much p 6 after only five months of reading e-books. Bid o Hafrag, a child from Egypt, said, “Reading e-books not only helps me learn to read and write, but gives me much confidence. It also helps me have a b 7 understanding of the world.” （22-23九年级上·上海·期末）Read the passage and fill in the blanks with proper words（在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给）。 Most of us spend our lives surrounded by screens, with which we manage our work, our recreation and our relationships. These devices offer us convenience as well as connection and a lot of information. H 1 , it’s also easy to feel pressured to keep up with every message. More and more people want to take a break from technology. The phrase “digital detox” describes staying away from TV, phones, computers and other forms of technology that c 2 our lives for a period of time. These breaks can occur in a variety of ways. Some experts suggest completely avoiding u 3 screen time for 30 days. Others suggest using an app that will limit the amount of time one can spend on certain websites. A third option is logging out in evenings and/or on w 4 . Others simply turn their phones off. Some even pay high prices to take vacations in places where they can take time out from technology. Why do you want to take a digital detox? Perhaps you find that you are spending longer than you plan on certain apps or that they distract you from more important things. Perhaps social media is depressing because you compare yourself to others or you f 5 missing out on things that other people are enjoying. Technology can also have p 6 effects. Many people experience back or neck pain and the blue light coming from most screens can also affect people’s sleep. On one research trip, a group of people agreed to spend four days w 7 their smartphones. By the time the phone-free period ended, many people in the group had made important decisions about their work or relationships. Others had decided to live a healthier lifestyle. Only when they took a break from technology could they think about really important things. Giving up all screens may not be realistic, but strategic breaks from technology my be good for your body, mind, emotions and relationships. （23-24九年级上·上海金山·期末）在短文的空格内填入适当的词，使其内容通顺。每空格限填一词，首字母已给。 One of the first science fiction books published was Jules Verne’s Journey to the Centre of the Earth, written in 1864. This popular book marked the b 1 of our strong interest in science fiction. Since then, there have been books, magazines, computer games, radio and TV shows and films. A science fiction story doesn’t just focus on the future; it focuses on the use of science in our future. Sometimes things that are written in science fiction stories a 2 become true. Star Trek first appeared on television in 1966. The crew of the spaceship spoke to each other on small mobile devices. A robot starred in the 1927 film, Metropolis. In the 1982 film, Blade Runner, video communication was s 3 as an exciting thing of the future. This is one of the reasons why science fiction is so popular. It lets us think about how our world might be in the future. It gives us ideas about how we might make things on the Earth better than they are n 4 . It gives us possible solutions to problems. A 5 reason is that it begins to answer some of the biggest questions in life, questions like Are we alone in the universe? What could we do better? Science fiction gives us the chance to think about these questions and c 6 possible answers. People also like to get away from their daily lives through science fiction. It is d 7 to imagine a better way of doing this than reading a fantastic story about a place you have never been to and creatures you cannot imagine. It does this by making us feel that anything is possible. Perhaps science fiction could also make us feel lucky to live here on the Earth. Perhaps it could even make us take better care of our planet. （23-24九年级上·上海浦东新·期中）Read the passage and fill in the blanks with proper words(在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给）： Storing data(数据) has become more convenient. Thirty years ago, people had to depend on floppy disks(软磁盘). N 1 , all we have to do is hit the “Save” button on our screens. The files will then be stored in the “cloud.” It seems that we will never run out of space. Isn’t that great? In fact, however, the storage space we now have is not c 2 enough. Every day, 4. 5 billion internet users create a LARGE amount of data. By 2025, the amount of data worldwide will have r 3 175 zettabytes (1 ZB=1012 GB). Clearly, we can’t cover every piece of land on the planet with data centers. So where can we store all of this data? Fortunately, some researchers have been working on new storage technologies. One of these technologies is DNA storage. DNA storage sounds futurist, but in some ways, it’s just the opposite. B 4 computers were invented, nature had been using DNA to store information. In 2012, researchers at Harvard University wrote a book, 11 pictures and a computer program into human DNA．Each gram of DNA can hold 2.2 petabytes (PB．of information (1 ZB =1,048,576 PB．If DNA is kept in the right condition, it can keep the stored information s 5 for a million years. There are still p 6 with using DNA for data storage. For example, it takes lots of time to write into and read from DNA．Scientists are trying to i 7 this technology. We will have to wait to see how their efforts pay off in the future. （20-21九年级上·上海虹口·期中）Read the passage and fill in the blanks with proper words （在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给）. Life has gone mostly online for many people around the world. With more people going online during the pandemic, global internet traffic has become a big problem. Between January and late March, a quarter of big cities experienced an i 1 in internet traffic. Video meetings, online classrooms and stay-at-home entertainment have become a lifeline to the outside world. The increasing use of internet is t 2 the internet’s power. Many people cannot surf the internet as fast as usual. In March, phone networks in the UK experienced mass outages（断供）. People were not able to take calls. In the US, main telecommunications（电信）companies like AT&T said traffic was u 3 21 percent month over month. Video streaming services like YouTube, Netflix and Facebook have cut their qualities and download speeds. This is being done to reduce network traffic jams. China has seen an internet traffic increase of around 50 percent c 4 to the end of 2019. The country’s network speeds went down sharply in early February. However, they r 5 to normal soon afterwards and have been working well. This is due to China’s work in building network infrastructure（基础设施）, e 6 5G technology. By the end of February, 164, 000 5G base stations had been built nationwide. This has given Chinese networks the power to withstand increased traffic. “If there were no such development in the internet network field, people could hardly enjoy such a colorful life at home. O 7 working and teaching could never be realized so smoothly,” Wen Ku, an official with the Ministry of Industry and Information Technology. （23-24九年级上·上海徐汇·期中）在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给。 Central Processing Unit (CPU) The most important part of any computer is its central processing unit, or CPU. It is the CPU that information and instructions are processed. The CPU has a memory unit. This unit s 1 information and instructions. It holds information and instructions until they are needed. In some computers, the memory is a group of magnetic cores (磁芯). In o 2 , it is a magnetic tape, disk, or drum. Information appears on tapes and disks as magnetic spots. In the smallest computers, the memory, or even the whole CPU, may be on a tiny piece of equipment called a chip (芯片). The CPU a 3 has an arithmetic (运算) unit. This is another main part which sorts information and computes—add, subtracts, and so on. An important unit of the CPU is called the “captain” of the computer because it can c 4 the work of the computer. It gets instructions from the memory. Then it tells the memory what information to send to the arithmetic unit. F 5 , it tells the arithmetic unit how to process the information. Input Equipment Input means information that is fed into a computer. B 6 a computer can do any work, information and instructions must go into it. Such information and instruction for a computer is called software. The input equipment takes information and instruction from the outside world. Then it puts it into code (代码) for the computer to use. Special keyboards serve as input equipment on most home computers. Output Equipment Output means information delivered from a computer according to coded instruction. Information can come out of a computer in many f 7 . It can show up on a display screen, or it can be turned out on paper by a printer. 学科网（北京）股份有限公司 $$ Unit 4 Computers 单元话题短文首字母填空练习 （24-25九年级上·上海静安·阶段练习）     Read the passage and fill in the blanks with proper words（在短文的空格内填入适当的词，使其内容通顺，每空格限填一次，首字母已给） Kids are born for science. This idea may surprise you because science seems d 1 to learn. Yet it really holds water and science learning is likely to make a great d 2 in kids’ lives. The most important part of science is a mixture of t 3 and experiment called the scientific method. It’s where you start with an idea, create a way to explain your idea, and show what you learned based on facts. Learning to follow this process helps you think logically (逻辑地) and carefully. One of the greatest thing we can teach our children is to love learning. Learning science is a great way to do so. Children are a 4 by science because much of science is hands-on. Nothing draws a child to sitting up and taking notice like science experiments. Science opens doors to many s 5 at school. Building love for science can be helpful in other areas of study. For example, one cannot love science for very long without becoming good at its language — math! So, science encourage children to study math. An interest in science is an interest in how things were once understood compared to how they are understood now. As a result, studying science leads itself easily to studying history. Science is the b 6 thing for much of our life. The science of famring shows how our food is produced; biomedical (生物医学的) science keeps us healthy; e 7 our beds these days are designed according to scientific facts. We almost eat, sleep and breath with the help of science! 【答案】1．(d)ifficult 2．(d)ifference 3．(t)hought 4．(a)ttracted 5．(s)ubjects 6．(b)asic 7．(e)ven 【导语】本文是一篇说明文，文章主要介绍了科学学习的重要性及其对孩子成长的积极影响。 1．句意：这个想法可能会让你感到惊讶，因为科学似乎很难学。根据“Kids are born for science. This idea may surprise you”可知，此处是说人们一般不能理解孩子们天生适合学习，是因为科学是困难的，结合首字母提示可知，difficult“困难的”符合语境，此处作表语。故填(d)ifficult。 2．句意：然而，这确实是有道理的，学习科学很可能会极大地影响孩子们的生活。根据“science learning is likely to make a great”可知，此处是指学习科学能够影响生活，make a difference“产生影响”是固定搭配。故填(d)ifference。 3．句意：科学最重要的部分是想法和实验的结合，称为科学方法。根据“a mixture of”可知，此处是指科学方法是想法和实验的结合体，结合首字母提示可知，thought“想法，理论”符合语境，故填(t)hought。 4．句意：孩子们被科学吸引，因为许多科学都是实践性的。根据“because much of science is hands-on”可知，此处是指科学的实践性能够吸引孩子，结合首字母提示可知，attract“吸引”符合语境，本句主语是children，孩子们被科学吸引，本句是被动语态，其结构为be加过去分词。故填(a)ttracted。 5．句意：科学为学校里的许多学科打开了大门。根据“Building love for science can be helpful in other areas of study.”可知，此处是指培养对科学的热爱会对其他学习领域有所帮助，结合首字母提示可知，subject“学科”符合语境，空前有 many，应用复数形式。故填(s)ubjects。 6．句意：对我们生活的一大部分而言，科学是根本性的事情。根据“We almost eat, sleep and breath with the help of science!”可知，此处是指科学给予我们很多帮助，包括吃，睡和呼吸，是生活中很基础的事情，结合首字母提示可知，basic“基础的，根本的”符合语境，故填(b)asic。 7．句意：如今，甚至我们的床也是根据科学事实设计的。根据“our beds these days are designed according to scientific facts”可知，此处是指科学在我们生活中有很多作用，甚至床的设计也和科学有关，结合首字母提示可知，even“甚至”符合语境，故填(e)ven。 （24-25九年级上·上海黄浦·阶段练习）Read the passage and fill in the blanks with proper words(在短文的空格内填入适当的词，使其内容通 顺，每空格限填一词，首字母已给) Everybody’s Tweeting With the words “just setting up my tweet”, Twitter co-founder Jack Dorsey launched a site that would change how we communicate forever. Twitter was originally created as a messaging system for a podcasting website, but it takes on a life of its own as people realize it o 1 them the power to connect with millions of people instantly. But what are we using it for, and just how is Twitter changing the way we do things? Perhaps the greatest effect Twitter has had is on breaking news. Before Twitter, news had to get the a 2 of a journalist, who then had to make sure the news was accurate and true before finally broadcasting it on the radio or TV. These days a 3 who happens to be in the right place at the right time with a Twitter account can post news the second it happens. With retweets it can be half around the world in seconds. A perfect example of this was when a US flight made an emergency landing in the Hudson River in New York City. “There’s a plane in the Hudson. I’m on the ferry going to pick up the people. Crazy!” is how eyewitness Janis Krums broke the story to the world with this Tweet and a photo of the unusual event. Young people have always loved to follow their pop idols, and Twitter has made it a whole lot easier. Before the Internet, teenagers used to join the fan clubs of their idols and write letters to their heroes. If they were l 4 two weeks later they’d get a reply written by the club secretary. Today’s teenagers don’t need to wait. By following their idols on Twitter they get all the news the minute it happens. They get to hear what they had for breakfast, what they did the night before, what they’re thinking as they sit waiting for a plane. They get to hear it d 5 from their idols themselves. Twitter allows people who think the same way to get t 6 and do something about the things they care about. They can share information, organize campaigns and put p 7 on governments and big businesses to change. It allows people to stand up to things such as cyber bullying, sexism and racism. Twitter has given the man and woman on the street the power to make a difference. 【答案】1．(o)ffers 2．(a)ttention 3．(a)nyone 4．(l)ucky 5．(d)irectly 6．(t)ogether 7． (p)ressure 【导语】本文是一篇说明文。文章主要介绍了推特的主要作用。 1．句意：推特最初是作为播客网站的消息系统而创建的，但随着人们意识到它使人有能力立即与数百万人建立联系,它也有了自己的生命。offer sb sth表示“提供某人某物”，此处指推特赋予人与其他人联系的能力，又因此处为陈述客观事实，应用一般现在时。故填(o)ffers。 2．句意：在推特出现之前，新闻必须引起一个记者的注意，记者必须确保新闻的准确性和真实性，然后才能在广播或电视上播出。get the attention of sb表示“引起某人的注意”，故填(a)ttention。 3．句意：如今，不论谁碰巧在正确的时间出现在正确的地点，并拥有推特账户，就可以在新闻发生的那一刻发布新闻。本句与上文构成转折关系，表示任何人都可以发布新闻，因此用不定代词anyone做定语从句的先行词，故填(a)nyone。 4．句意：如果他们幸运的话，两周后，他们会收到俱乐部秘书的回复。根据were可知，空处缺少表语形容“they”，根据语意可知收到回信是幸运的。故填(l)ucky。 5．句意：他们可以直接从他们的偶像那里了解到信息。此处缺少副词修饰动词“hear”，表示“直接地”，故填(d)irectly。 6．句意：推特允许志同道合的人聚在一起并做一些他们在乎的事情。get together表示“聚在一起”，故填(t)ogether。 7．句意：他们可以共享信息、组织活动并督促政府和大企业做出改变。空处缺少名词，put pressure on sb表示“督促某人做某事”，故填(p)ressure。 （23-24九年级上·上海浦东新·期中）Read the passage and fill in the blanks with proper words.（在短文的空格内填入适当的词，使内容通顺，每空格限填一词，首字母已给） According to UNESCO (联合国教科文组织), there are 740 million people unable to read or write in this world. And 250 million children of primary school age have no basic reading and writing skills. However, reading makes everything p 1 in life: education, work and escaping poverty (贫困). Considering that, the Global School Community aims to bring digital books to all the children of the world and their families. Digital technology makes a real difference. It can reach across the world and is fairly inexpensive. The Global School Community makes e-books available to children all around the world, e 2 through mobile phones, Ipads or computers, saving the cost of making books and transport. Technology also helps improve our communication skills. Through the use of technology, teachers and children around the world can meet online to s 3 lessons and discuss ideas. Remote schooling (远程教学) is one example of the success of communication through the Internet. The first books a child reads can have a great e 4 on that child. The greater it is, the more likely the child is to continue reading and learning throughout his life. E-books, which are a 5 the electronic editions (版本) of printed books, not only provide knowledge and information, but help people grow healthily in mind. They can provide hours of entertainment and can connect schools all over the world. Studies have shown that children make much p 6 after only five months of reading e-books. Bid o Hafrag, a child from Egypt, said, “Reading e-books not only helps me learn to read and write, but gives me much confidence. It also helps me have a b 7 understanding of the world.” 【答案】1．(p)ossible 2．(e)ither 3．(s)hare 4．(e)ffect 5．(a)ctually 6．(p)rogress 7．(b)etter 【导语】本文介绍了全球学校社区把电子书带给世界上所有的孩子和他们的家庭。 1．句意：然而，阅读使生活中的一切成为可能：教育、工作和摆脱贫困。根据“education, work and escaping poverty (贫困).”和首字母p可知，读书使教育、工作、逃离贫困成为可能，possible“可能的”，是形容词，make sth+形容词，表示“使某物……”，故填(p)ossible。 2．句意：全球学校社区通过手机、ipad或电脑为世界各地的孩子提供电子书，节省了制作书籍和运输的成本。either...or...“或者……，或者……”，故填(e)ither。 3．句意：通过使用技术，世界各地的教师和孩子们可以在网上见面，分享课程和讨论想法。根据“Remote schooling (远程教学) is one example of the success of communication through the Internet.”可知，通过技术，世界各地的教师和孩子们可以分享课程，share“分享”，不定式后跟动词原形，故填(s)hare。 4．句意：孩子读的第一本书会对他产生很大的影响。根据“The greater it is, the more likely the child is to continue reading and learning throughout his life.”可知，它越伟大，孩子越有可能在他的一生中继续阅读和学习，此处表示读的第一本书对他产生影响。have a great effect on“对……产生很大的影响”，故填(e)ffect。 5．句意：电子书，实际上是纸质书的电子版，不仅提供知识和信息，而且帮助人们在思想上健康成长。根据“the electronic editions (版本) of printed books”可知，电子书是纸质书的电子版，这是事实，actually“事实上”，是副词，修饰动词are，用副词，故填(a)ctually。 6．句意：研究表明，孩子们在阅读电子书5个月后就取得了很大的进步。根据“Reading e-books not only helps me learn to read and write, but gives me much confidence.”可知，读电子书能帮助孩子们取得进步，progress“进步”，是不可数名词，故填(p)rogress。 7．句意：它也帮助我对世界有了一个更好的了解。根据“E-books, which are a…the electronic editions (版本) of printed books, not only provide knowledge and information, but help people grow healthily in mind”可知，电子书不仅提供知识和信息，而且帮助人们在思想上健康成长，因此能帮助我对世界有一个更好的了解。better“更好的”，是形容词，故填(b)etter。 （22-23九年级上·上海·期末）Read the passage and fill in the blanks with proper words（在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给）。 Most of us spend our lives surrounded by screens, with which we manage our work, our recreation and our relationships. These devices offer us convenience as well as connection and a lot of information. H 1 , it’s also easy to feel pressured to keep up with every message. More and more people want to take a break from technology. The phrase “digital detox” describes staying away from TV, phones, computers and other forms of technology that c 2 our lives for a period of time. These breaks can occur in a variety of ways. Some experts suggest completely avoiding u 3 screen time for 30 days. Others suggest using an app that will limit the amount of time one can spend on certain websites. A third option is logging out in evenings and/or on w 4 . Others simply turn their phones off. Some even pay high prices to take vacations in places where they can take time out from technology. Why do you want to take a digital detox? Perhaps you find that you are spending longer than you plan on certain apps or that they distract you from more important things. Perhaps social media is depressing because you compare yourself to others or you f 5 missing out on things that other people are enjoying. Technology can also have p 6 effects. Many people experience back or neck pain and the blue light coming from most screens can also affect people’s sleep. On one research trip, a group of people agreed to spend four days w 7 their smartphones. By the time the phone-free period ended, many people in the group had made important decisions about their work or relationships. Others had decided to live a healthier lifestyle. Only when they took a break from technology could they think about really important things. Giving up all screens may not be realistic, but strategic breaks from technology my be good for your body, mind, emotions and relationships. 【答案】1．(H)owever 2．(c)ontrol 3．(u)nnecessary 4．(w)eekends 5．(f)ear 6．(p)hysical 7．(w)ithout 【导语】本文主要讲述了我们大多数人的生活都被屏幕包围着，越来越多的人想要远离科技，文中介绍了“数字排毒法”，以及采用这种方法的原因。 1．句意：然而，要跟进每条信息也很容易感到压力。空前“These devices offer us convenience as well as connection and a lot of information. ”与空后“it’s also easy to feel pressured to keep up with every message.”之间是转折关系，且空后有逗号，所以用however“然而”。故填(H)owever。 2．句意：“数字排毒”指的是在一段时间内远离电视、电话、电脑和其他控制我们生活的科技产品。根据上文“it’s also easy to feel pressured to keep up with every message. More and more people want to take a break from technology.”和“our lives for a period of time”及首字母可知，此处指控制我们生活的科技产品，control“控制，限制”符合语境，时态是一般现在时，主语是复数，所以动词用原形。故填(c)ontrol。 3．句意：一些专家建议在30天内完全避免不必要的屏幕时间。空处作定语修饰time，所以用形容词，根据“staying away from TV, phones, computers and other forms of technology”及首字母可知，此处指不必要的屏幕时间，unnecessary“不必要的”符合语境。故填(u)nnecessary。 4．句意：第三种选择是在晚上和/或周末下线。根据“Others simply turn their phones off. Some even pay high prices to take vacations in places where they can take time out from technology.”及首字母可知，度假或关机应是非工作的情况下，所以空处应是说“周末”，on weekends“在周末”。故填(w)eekends。 5．句意：也许社交媒体令人沮丧是因为你把自己和别人比较，或者你害怕错过别人喜欢的东西。根据“...missing out on things that other people are enjoying.”及首字母和语境可知，应是说害怕错过信息，fear doing sth“害怕做某事”，时态是一般现在时，主语是you，所以谓语动词用三单形式，故填(f)ear。 6．句意：科技也会对身体产生影响。根据“Many people experience back or neck pain and the blue light coming from most screens can also affect people’s sleep.”及首字母可知，此处指对身体产生影响，空处作定语修饰名词effects，所以用physical表示“身体的”，故填(p)hysical。 7．句意：在一次研究旅行中，一组人同意在没有智能手机的情况下度过四天。根据“By the time the phone-free period ended”及首字母可知，空处指的是没有手机，without“没有”符合语境。故填(w)ithout。 （23-24九年级上·上海金山·期末）在短文的空格内填入适当的词，使其内容通顺。每空格限填一词，首字母已给。 One of the first science fiction books published was Jules Verne’s Journey to the Centre of the Earth, written in 1864. This popular book marked the b 1 of our strong interest in science fiction. Since then, there have been books, magazines, computer games, radio and TV shows and films. A science fiction story doesn’t just focus on the future; it focuses on the use of science in our future. Sometimes things that are written in science fiction stories a 2 become true. Star Trek first appeared on television in 1966. The crew of the spaceship spoke to each other on small mobile devices. A robot starred in the 1927 film, Metropolis. In the 1982 film, Blade Runner, video communication was s 3 as an exciting thing of the future. This is one of the reasons why science fiction is so popular. It lets us think about how our world might be in the future. It gives us ideas about how we might make things on the Earth better than they are n 4 . It gives us possible solutions to problems. A 5 reason is that it begins to answer some of the biggest questions in life, questions like Are we alone in the universe? What could we do better? Science fiction gives us the chance to think about these questions and c 6 possible answers. People also like to get away from their daily lives through science fiction. It is d 7 to imagine a better way of doing this than reading a fantastic story about a place you have never been to and creatures you cannot imagine. It does this by making us feel that anything is possible. Perhaps science fiction could also make us feel lucky to live here on the Earth. Perhaps it could even make us take better care of our planet. 【答案】1．(b)eginning 2．(a)ctually 3．(s)een 4．(n)ow 5．(A)nother 6．(c)onsider 7．(d)ifficult 【导语】本文主要讲述了对科幻小说的影响及受欢迎的原因。 1．句意：这本受欢迎的书标志着我们开始对科幻小说产生浓厚兴趣。根据“Since then”可知此处指我们开始对科幻小说产生浓厚兴趣，the beginning of“……的开始”，故填(b)eginning。 2．句意：有时候科幻小说里写的东西实际上会变成真的。根据“become true”可知小说里写的东西实际上会变成真的，此处应填副词修饰动词become，actually“实际上”符合语境，故填(a)ctually。 3．句意：在1982年的电影《银翼杀手》中，视频通信被视为未来令人兴奋的事情。根据首字母提示可知，此处考查短语be seen as“被视为”，指被视为未来令人兴奋的事情。故填(s)een。 4．句意：它给了我们如何让地球上的事情变得比现在更好的想法。根据“It lets us think about how our world might be in the future.”可知此处应是未来跟现在对比，now“现在”。故填(n)ow。 5．句意：另一个原因是，它开始回答生活中一些最大的问题，如我们在宇宙中是孤独的吗？根据前文“This is one of the reasons why science fiction is so popular.”可知此处指另一个原因，another“另一个”，句首单词首字母大写。故填(A)nother。 6．句意：科幻小说让我们有机会思考这些问题，并考虑可能的答案。根据“think about these questions”可知此处指考虑可能的答案，consider“考虑”，空前有and，此处应与“think about”形式保持一致。故填(c)onsider。 7．句意：很难想象有比阅读一个关于你从未去过的地方和你无法想象的生物的精彩故事更好的方式了。根据“People also like to get away from their daily lives through science fiction.”可知人们也喜欢通过科幻小说来摆脱日常生活，所以此处填形容词difficult“困难的”符合语境，在句中作表语。故填(d)ifficult。 （23-24九年级上·上海浦东新·期中）Read the passage and fill in the blanks with proper words(在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给）： Storing data(数据) has become more convenient. Thirty years ago, people had to depend on floppy disks(软磁盘). N 1 , all we have to do is hit the “Save” button on our screens. The files will then be stored in the “cloud.” It seems that we will never run out of space. Isn’t that great? In fact, however, the storage space we now have is not c 2 enough. Every day, 4. 5 billion internet users create a LARGE amount of data. By 2025, the amount of data worldwide will have r 3 175 zettabytes (1 ZB=1012 GB). Clearly, we can’t cover every piece of land on the planet with data centers. So where can we store all of this data? Fortunately, some researchers have been working on new storage technologies. One of these technologies is DNA storage. DNA storage sounds futurist, but in some ways, it’s just the opposite. B 4 computers were invented, nature had been using DNA to store information. In 2012, researchers at Harvard University wrote a book, 11 pictures and a computer program into human DNA．Each gram of DNA can hold 2.2 petabytes (PB．of information (1 ZB =1,048,576 PB．If DNA is kept in the right condition, it can keep the stored information s 5 for a million years. There are still p 6 with using DNA for data storage. For example, it takes lots of time to write into and read from DNA．Scientists are trying to i 7 this technology. We will have to wait to see how their efforts pay off in the future. 【答案】1．(N)owadays 2．(c)lose 3．(r)eached 4．(B)efore 5．(s)afe 6．(p)roblems 7．(i)mprove 【导语】本文是一篇说明文。随着电脑数据不断增长，储存数据的难度增加，以及DNA技术来储存数据存在的问题。 1．句意：如今，我们所要做的就是点击屏幕上的“保存”按钮。根据“Thirty years ago, people had to depend on floppy disks(软磁盘).”以及“all we have to do is hit the ‘Save’ button on our screens.”几首字母提示可知，此处说的是现如今的情况，nowadays“如今”，是副词，故填(N)owadays。 2．句意：然而，事实上，我们现在拥有的存储空间还不够紧密。根据“Every day, 4. 5 billion internet users create a LARGE amount of data. By 2025, the amount of data worldwide will have...175 zettabytes (1 ZB=1012 GB).”及首字母提示可知，现在拥有的存储空间还不够紧密，此处用形容词close，故填(c)lose。 3．句意：到2025年，全球数据量将达到3ZB (1 ZB=1012 GB)。根据“the amount of data worldwide will have...3 zettabytes”及首字母提示可知，此处指的是reach“达到”，介绍过去的事情，动词用过去式，故填(r)eached。 4．句意：在计算机发明之前，大自然一直在使用DNA来存储信息。根据“computers were invented, nature had been using DNA to store information.”及首字母提示可知，此处指的是计算机发明之前，before“在……之前”，位于句首的单词首字母要大写，故填(B)efore。 5．句意：如果DNA保存在合适的条件下，它可以将存储的信息安全保存100万年。根据“If DNA is kept in the right condition, it can keep the stored information...for a million years.”及首字母提示可知，此处指的是safe“安全的”，此处是“keep sth+adj”的结构，故填safe。 6．句意：使用DNA进行数据存储仍然存在问题。根据首字母提示及“For example, it takes lots of time to write into and read from DNA.”可知，此处指的是“有问题”，problem“问题”，结合“There are”可知，此处名词用复数形式，故填(p)roblems。 7．句意：科学家们正在努力改进这项技术。根据“Scientists are trying to...this technology. We will have to wait to see how their efforts pay off in the future.”及首字母提示可知，此处说的是技术正在改进中，improve“提升”，空前有to，此处动词用原形，故填(i)mprove。 （20-21九年级上·上海虹口·期中）Read the passage and fill in the blanks with proper words （在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给）. Life has gone mostly online for many people around the world. With more people going online during the pandemic, global internet traffic has become a big problem. Between January and late March, a quarter of big cities experienced an i 1 in internet traffic. Video meetings, online classrooms and stay-at-home entertainment have become a lifeline to the outside world. The increasing use of internet is t 2 the internet’s power. Many people cannot surf the internet as fast as usual. In March, phone networks in the UK experienced mass outages（断供）. People were not able to take calls. In the US, main telecommunications（电信）companies like AT&T said traffic was u 3 21 percent month over month. Video streaming services like YouTube, Netflix and Facebook have cut their qualities and download speeds. This is being done to reduce network traffic jams. China has seen an internet traffic increase of around 50 percent c 4 to the end of 2019. The country’s network speeds went down sharply in early February. However, they r 5 to normal soon afterwards and have been working well. This is due to China’s work in building network infrastructure（基础设施）, e 6 5G technology. By the end of February, 164, 000 5G base stations had been built nationwide. This has given Chinese networks the power to withstand increased traffic. “If there were no such development in the internet network field, people could hardly enjoy such a colorful life at home. O 7 working and teaching could never be realized so smoothly,” Wen Ku, an official with the Ministry of Industry and Information Technology. 【答案】1．(i)ncrease 2．(t)esting 3．(u)p 4．(c)ompared 5．(r)eturned 6．(e)specially 7．(O)nline. 【分析】这是一篇新闻报道。文章讲述疫情期间，随着越来越多的人上网，全球互联网流量已经成为一个大问题。并着重讲述中国互联网基础设施的发展成功应对了这一挑战。 1．句意：1月至3月底，四分之一的主要城市的互联网流量有所增加。动词“ experienced”后缺宾语，根据“an”可知是单数名词。根据下文“This increase in traffic is testing the internet’s strength”和首字母提示,可知表达“增加”，根据首字母提示可知用名词“increase”。故填(i)ncrease。 2．句意：互联网使用的增长正在考验互联网的实力。句子是现在进行时，动词用“be doing”的结构。根据“the internet’s power”及“Many people cannot surf the internet as fast as usual. In March, phone networks in the UK experienced mass outages. People were not able to take calls”可知表达“检测，考验”，根据首字母提示可知动词用现在分词“testing”。故填(t)esting。 3．句意：在美国，像美国电报电话公司这样的电信公司说网速逐月高达21%。根据“21% month over month”及首字母提示可知高达21%，用介词“up”。故填(u)p。 4．句意：与2019年底相比，中国的互联网流量增长了约50%。根据“the end of 2019”可知表达时间的比较，用“compared to…”表达“与……比较”。故填(c)ompared。 5．句意：然而，他们在不久之后恢复了正常，且运转顺利。根据空后“and have worked well”和首字母提示，可知表达“恢复了正常”，用动词“return”。讲述的是过去的事情，句子是一般过去时，动词用过去式“returned”。故填(r)eturned。 6．句意：这得益于中国在网络基础设施建设方面的工作，尤其是5G技术。根据“building network infrastructure”可知特别强调了5G技术。根据首字母提示可知用副词“especially”，表达“尤其地”。故填(e)specially。 7．句意：在线工作和教学从未如此顺利地进行。根据“online classrooms”及“the internet network field”可知表达在线工作和教学，用形容词“online”。句首首字母大写。故填(O)nline。 （23-24九年级上·上海徐汇·期中）在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给。 Central Processing Unit (CPU) The most important part of any computer is its central processing unit, or CPU. It is the CPU that information and instructions are processed. The CPU has a memory unit. This unit s 1 information and instructions. It holds information and instructions until they are needed. In some computers, the memory is a group of magnetic cores (磁芯). In o 2 , it is a magnetic tape, disk, or drum. Information appears on tapes and disks as magnetic spots. In the smallest computers, the memory, or even the whole CPU, may be on a tiny piece of equipment called a chip (芯片). The CPU a 3 has an arithmetic (运算) unit. This is another main part which sorts information and computes—add, subtracts, and so on. An important unit of the CPU is called the “captain” of the computer because it can c 4 the work of the computer. It gets instructions from the memory. Then it tells the memory what information to send to the arithmetic unit. F 5 , it tells the arithmetic unit how to process the information. Input Equipment Input means information that is fed into a computer. B 6 a computer can do any work, information and instructions must go into it. Such information and instruction for a computer is called software. The input equipment takes information and instruction from the outside world. Then it puts it into code (代码) for the computer to use. Special keyboards serve as input equipment on most home computers. Output Equipment Output means information delivered from a computer according to coded instruction. Information can come out of a computer in many f 7 . It can show up on a display screen, or it can be turned out on paper by a printer. 【答案】1．(s)tores 2．(o)thers 3．(a)lso 4．(c)ontrol 5．(F)inally 6．(B)efore 7．(f)orms 【导语】本文主要介绍了计算机的组成部分以及各部分的功能。 1．句意：这个单元式存储信息和指令的。根据“information and instructions”和“It holds information and instructions until they are needed.”，可知空处应为动词，计算机存储信息和指令后才能在需要的时候被抓取，空处应为store“存储”，主语This unit是名词单数，谓语动词应该用第三人称单数stores。故填(s)tores。 2．句意：在另一些计算机中，内存的构成是磁带、磁盘和磁鼓。根据“In some computers, the memory is a group of magnetic cores”，可知空处指“另一些计算机”，指代名词复数且空后没有名词，用others。故填(o)thers。 3．句意：CPU也有运算单元。文章前三段介绍了CPU，根据第一段“The CPU has a memory unit”和第二段“The CPU a...has an arithmetic (运算) unit.”，可知此处是在介绍CPU的另外一个功能，also“也”。故填(a)lso。 4．句意：CPU的一个重要的单元被称为计算机的“队长”，因为它是控制计算机工作的。根据“An important unit of the CPU is called the captain of the computer”，可知队长发出指令控制计算机，空处应为control“控制”，情态动词can后加动词原型。故填(c)ontrol。 5．句意；最后，它告诉运算单元如何处理信息。根据“It gets instructions from the memory. Then it tells...”，可知此处讲了它的工作流程，空处应为“最后”finally。故填(F)inally。 6．句意：在电脑工作前，必须输入信息和指令。根据“Such information and instruction for a computer is called software.”，可知必须要输入信息和指令，计算机才能工作，空处应为before“在……之前”。故填(B)efore。 7．句意：信息可以以很多形式从计算机中出来。根据“It can show up on a display screen, or it can be turned out on paper by a printer.”，可知此处是计算机输出信息的形式，空处应为form“形式”，many后加名词复数forms。故填(f)orms。 学科网（北京）股份有限公司 $$