山东省淄博市临淄区溡水实验学校（五四制）2024-2025学年九年级上学期第一次反馈英语试题

2024-2025学年九年级英语上学期第一次反馈练习 注意事项: 1.本试卷分第 卷(选择题)和第 卷(非选择题)两部分。答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。 3.第一卷答案写在答题卡上。写在本试卷上无效。 第 卷 选择题(满分50分) 一、完形填空(共10小题,每小题1分,满分10分) 请认真阅读下面短文,从短文后各题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。 At 9: 30 pm yesterday, I was sitting in my chair, listening to a strange sound. It made me 11 . This was the third time I had heard the 12 . I didn’t know who or what made the sound. It sounded as if someone was knocking at my 13 , but I lived on the ninth floor! I was 14 scared to open my eyes until the sound stopped. I thought about asking for help, but I was sure people would 15 me. “There are no such things as ghosts, ”they’d say. “There it is again! ” I shouted. My mom came and 16 me what was going on. Then she heard the strange sound too. She went into the bathroom. I wanted to 17 my mom because I was afraid that something bad would happen to her. 18 she started laughing. “It’s OK, dear. It’s just a strong wind making your curtain shake and knock at the window. ” I was very surprised. Since then, I’ve started thinking more 19 . In the world, there are 20 ghosts. I don’t need to be afraid. If such things happen again, I will do like what my mom did and find out the truth. 11. A. scared B. pleased C. excited D. unhappy 12. A. shout B. sound C. cry D. music 13. A. window B. door C. floor D. desk 14. A. so B. too C. very D. enough 15. A. talk about B. find out C. laugh at D. make up 16. A. asked B. told C. answered D. expected 17. A. encourage B. call C. stop D. warn 18. A. But B. And C. So D. Though 19. A. quickly B. deeply C. scientifically D. finally 20. A. many B. no C. enough D. few 二、阅读理解(共20小题,每小题2分,满分40分) 请认真阅读下列材料,从材料后各题所给的A.B.C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。 A Think your school rules are boring? Take a look at these rules. No hugging Some schools in Portland and Florida started the rule — no hugging in 2010. Two years later some schools in New Jersey and Brooklyn made the same rule. The reason is clear — to avoid “unsuitable interactions (不适当的互动)” between students. No bags into the classroom One high school in Michigan doesn’t allow bags into the classroom at all. The school asks students to return to their lockers (有锁存物柜) between classes for their books in order to make sure they are safe in lunchrooms and classrooms. No Ugg boots (Ugg靴子) It might get very cold in winter in Pennsylvania, but students there aren’t allowed to wear their Ugg boots into class. It’s to stop them from hiding things like mobile phones in the boots. No balls A Toronto school doesn’t allow its students to bring any hard balls to school. Why? A parent was taken to hospital with a concussion (脑震荡) after being hit by a ball. Interested? Click (点击) here to read more. 21. When did some schools in New Jersey make the rule “no hugging”? A. In 2008. B. In 2010. C. In 2012. D. In 2014. 22.. Mobile phones are not allowed into class in _. A. one Portland school B. some schools in Florida C. one Pennsylvania school D. some schools in Brooklyn 23. Where is the material from? A. A newspaper. B. A website. C. A speech. D. A diary. B The biggest secret about inventing is that anybody can do it! Perhaps this sounds crazy, but it’s true. Maybe you have the wrong idea about inventing, so read on to discover the truth. Wrong idea No. 1: An invention has to be something completely new. Inventing means creating something “new”, but the idea could come from something that already exists(存在). The Wright Brothers, got the idea for building a “flying machine” from watching birds. Wrong idea No. 2: Inventors are born, not made. There are a lot of factors(因素)that make invention possible. Take Mozart for example. He was born with a talent for musical composition. But other factors were also important for his creativity. His father was a music teacher, and Mozart practiced for hours every day, from the time he was four years old. Thomas Edison said that being an inventor was “99% hard work and 1% inspiration”! Very successful creators don’t give up when they get something wrong. As one inventor said, “A failure is the right answer to the wrong question. ” Wrong idea No. 3: Inventors are always old people. Don’t believe that. You can’t invent something when you are young. Here are two examples of young inventors: Louis Braille went blind when he was a child. When he was fifteen, he invented a system of reading and writing for blind people that is still used in most countries today. As a young man, George Nissen was watching some artists performing in a show. He watched how they fell into the safety net and then jumped back up again. This gave him an idea and he invented the trampoline(蹦床). 24. In the writer’s opinion, there are _ wrong ideas about inventing in the passage. A. 2 B. 3 C. 4 D. 5 25. _ got the idea for building a “flying machine” from watching birds. A. Mozart B. George Nissen C. Louis Braille D. The Wright Brothers 26. Which of the following is the writer’s opinion? A. Anybody can do inventing. B. Inventors are horn, not made. C. Inventors are always old people. D. An invention has to be something completely new. 27. The best title for the passage would be _. A. How to Perform in a Show B. Be a Composer C. How to Help Blind People D. Be an Inventor C The Silk Road is a historically important international trade route (路线) between China and the Medier ranean (地中海). It began during the Western Han Dynasty and has been a bridge between East and West for over 2,000 years. The ancient road started from Chang’an (now Xi’an) and ended in Eastern Europe near today’s Turkey and the Mediterranean Sea. It was about 6, 500 kilometers long and went across one-fourth of the planet. The Silk Road got its name in the 19th century because Chinese silk used to be carried along this road. Silk, jade, ceramics and iron went west to Rome. And from the west came glass, gems and food like carrots. The Silk Road was very important to both China and the rest of the world. It was more than an ancient international trade route. Besides trade, knowledge about arts, science and literature, as well crafts and technologies was shared across the Silk Road. In this way, languages and cultures developed and influenced each other. Today, China is trying to build the “21st Century Marine (海洋的) Silk Road”. With the help of APEC held in Beijing in November 2014, the dream of One Belt One Road (一带一路) is coming true. 28. When did the Silk Road begin? A. In the 19th century. B. In the 18th century. C. During the Western Han Dynasty. D. During the Eastern Han Dynasty. 29. How long was the ancient Silk Road? A. It was about 6, 500 meters long. B. It was about 5,000 kilometers long. C. It went across one-third of the planet. D. It went across one-fourth of the earth. 30. Why was it named the Silk Road? A. Because Chinese silk was carried along this road. B. Because Chinese silk was produced along this road. C. Because things were traded from market to market along this road. D. Because the ancient traders bought and sold things along this road. 31. It can be inferred (推断) from this passage that _ . A. the Silk Road was only an ancient international trade route B. many new silk roads have been built by the Chinese government so far C. the Silk Road was a very important line of communication connecting East and West D. the Silk Road prevented the development of languages and cultures between East and West D The Great Sphinx of Giza Most scientists agree the Great Sphinx of Giza(吉萨狮身人面像) was built around 2 500 B. C. But John Anthony West says that it’s much older. If he’s right, “Everything anybody has learned about ancient civilizations(文明) would have to be completely revised. ” he told a magazine. West, a writer and film-maker, first got interested in ancient history after studying the work of a French researcher. The researcher said Egyptian civilization could have developed as early as 30, 000 years ago, rather than 4, 500 years ago, as most experts believe. West joined a scientist to do research together. Their research suggested that the Sphinx had been worn down(磨损) over the years by water, rather than by sand and wind. Wait a minute? Water? How could that be? The Sphinx is in the Sahara Desert, which has been dry for 12, 000 years! However, before that time, it was very green. If it’s true that water wore down the Sphinx, West thinks that it must have been built centuries earlier. Whether West is right or wrong, it’s important to challenge accepted ideas. That’s how science progresses. West gave some advice for kids: If you are interested in a topic, read everything you can find on it. Do your own research. Don’t always believe everything your teachers tell you. Ask lots of questions, and find your own answers. 32.. What does the underlined word “revised” in Paragraph 1 mean? A. Connected. B. Created. C. Changed. D. Controlled. 33. From West’s research, we can know the Sphinx was worn down by _. A. sand B. water C. wind D. heat 34. What does Paragraph 4 mainly talk about? A. The place where West did his research. B. The period when the Sphinx was built. C. The reason why West holds his opinion. D. The technology which was used to build the Sphinx. 35. Which of the following may the writer agree? A. Science progresses through giving different opinions. B. Egyptian civilization should be earlier than we thought. C. One should do some research before giving their opinions. D. Kids should ask lots of questions and believe what their teachers say. E In the early days of the American West, life was difficult. People lived on farms away from other families. _36_ Then they saw their friends and neighbors there. On their farms, everyone had lots of work to do. There were some big jobs, and one of them was to build a house. What did families do to build houses? They asked for help. _37_ Women cooked together when men worked on the building. For children, it was like a holiday. There were many children whom they could play with. They enjoyed this form very much. Together these people built a house. At some other time, the family with the new house would help their neighbors, too. They helped each other for the good of everyone. A work group is really cooperative. To cooperate means "to work together". A big job can be easy because of cooperation. Many people can work together. _38_It will become a small job for many workers. Today, there isn't much cooperation. People don't work together very often. _39_How can they ask them for help? Now, we help others only when they have emergencies (紧急情况) or accidents. We call the police for help, we talk to our neighbors, and then we become true neighbors and friends. Why not always cooperate? Why not work with other people? You'd better not wait for emergencies or accidents. _40_ A. So some people don't know their neighbors. B. They went into town once a week or once a month. C. If you always work with others, it can be fun, and life can become easier, too. D. They asked their friends and neighbors, and invited them to a work group for a few days. E. Then the job will not be difficult. 第II卷 非选择题(满分40分) 三、短文填空(共10小题,每小题1分,满分10分) 从下面方框中选出10个单词,将其正确形式填入短文,使短文意思正确通顺(每词限用一次)。 but, chose, colorful, direction, to fly, higher, importance, itself, most, slowly One day, a father and his son went to a kite-flying festival. When they arrived, there were already many adults and their children playing in the park. When the son saw the sky filled with _41_ kites in different shapes, he was excited and wanted to get one too. His father agreed to buy one for him. So they went to a kite shop and _42_ a beautiful one. With the string (线) in hand, the son started _43_ the kite. Soon, the kite was high up in the sky. After a while, the son said, “Father, it seems that the string is stopping the kite from flying higher. If we cut it, it will be free and fly even higer. Can we cut it?” The father didn’t reply, but just cut the string off the reel (线轴). Suddenly the kite began to go _44_, which made the son much happier. However, to his surprise, the kite was coming down. They waited for quite some time. _45_, it fell onto the grass. The son felt upset and asked, “I thought that after cutting the string, the kite would fly higher. Why did it fall down?” The father smiled and said, “The role of the string was not stopping the kite from flying higher, _46_ helping it stay in the sky, because the kite _47_ can’t fly up. By using the string you help the kite go up in the right _48_. When you cut the string, it could not support the kite.” In our life, we may sometimes feel like there are certain things that are holding us back and stopping us from growing. But in fact, these might be the things that support us _49_. We can really grow up and become stronger by realizing the _50_ of these things. 41. _ 42._ 43._ 44._ 45._ 46._ 47._ 48._ 49._ 50._ 四、语法填空(共10小题,每小题1分,满分10分) 阅读下面短文,在空白处填入一个恰当的单词或括号内所给单词的正确形式。 “Hands on home keys. 51 (eye) on the book. Ready. Type(打字).” It was 1980. I was 52 14-year-old high school student and I was learning to type a letter on an electric typewriter(打字机). I had decided to take the class instead of 53 (learn) a foreign language. Because I had enough trouble with English. But I didn’t 54 (real) see myself ever using a typewriter again after the term was over. Fast forward 20 years. My wife and I had bought our first computer. Amazingly, my hands 55 (go) directly to the home keys and I began to write. Like riding a bike my body remembered 56 to type. Soon I was not only writing stories on my computer 57 also sending them out on the Internet as well. Where once I had been able to touch hundreds of readers of our local paper now I was able to touch thousands of readers all over the world. I was so proud! Life is a long journey full 58 loving, learning, and helping. You never know what you will need along the way. You should trust 59 . Use every talent you have to make this world a 60 (good) and more beautiful place. 51._ 52._ 53._ 54._ 55._ 56._ 57._ 58._ 59._ 60._ 五、阅读表达(共10小题,每小题2分,满分10分) Coffee has been a part of people’s lives for thousands of years,and today it is still a favourite drink of millions of people in the world. Coffee is so popular ,but do you know the story of coffee and how it was discovered? There is an old story that says coffee was discovered in Africa long ,long time ago. One day, a farmer was watching his goats, and he saw them eat some small berries(干种子)from a plant. After they ate the berries, the goats became very active. The man often felt tired, so he decided to try the berries too. Surprisingly, he did not feel tired any more.Coffee plants were thus discovered. Then coffee was taken from Africa to Arabia(阿拉伯半岛),and there it was first used as medicine. The Arabs kept coffee a secret for many years. Later, coffee came to Turkey(土耳其),then Italy, then France. From Europe, the coffee plant was taken to America. People found that coffee plants grew well in many parts of South America, so large coffee farms were started, and many coffee plants were grown. On these farms, coffee beans were picked from the plants by hand. Then the beans were dried and prepared for market to sell. Different coffee beans were mixed together to produce different kinds of coffee. Coffee was sent to all over the world ,and soon became very popular. 请认真阅读下面短文,并根据短文内容回答问题。 61. Where did coffee come from? _ 62. What was coffee first used as in Arabia? _ 63. Why were large coffee farms started in South America? _ 64. How did people get coffee beans from the plants? _ 65. Why did people mix different coffee beans together? _ 6、 书面表达(满分10分) 根据下面的提示写一篇短文。 标题:How was the ball-point pen invented? who John Loud,an American man when in 1888 advantages help write faster,make life easier disadvantages need refilling,sometimes leak where to be used many fields price low changes become smaller and lighter 要求: 1. 内容应包含所有提示信息,可适当发挥; 2. 80个词左右。 _ _ 一、完形填空 0. A 解析:根据后文 “I was 14 scared to open my eyes until the sound stopped.” 可知这个奇怪的声音让作者感到害怕,“scared” 表示 “害怕的”,所以选 A。 1. B 解析:根据前文 “listening to a strange sound” 可知这里说的是第三次听到这个声音,“sound” 表示 “声音”,所以选 B。 2. A 解析:根据后文 “it’s just a strong wind making your curtain shake and knock at the window” 可知听起来像是有人在敲窗户,“window” 表示 “窗户”,所以选 A。 3. B 解析:“too...to...” 表示 “太…… 而不能……”,此处表示作者太害怕了以至于不敢睁开眼睛,所以选 B。 4. C 解析: 4. A 选项 “talk about”(谈论); 4. B 选项 “find out”(查明); 4. C 选项 “laugh at”(嘲笑); 4. D 选项 “make up”(编造)。根据 “There are no such things as ghosts” 可知作者觉得人们会嘲笑他,所以选 C。 5. A 解析:妈妈过来问作者发生了什么事,“ask” 表示 “问”,所以选 A。 6. C 解析:作者害怕妈妈会遭遇不好的事情,所以想阻止妈妈,“stop” 表示 “阻止”,所以选 C。 7. A 解析:妈妈去了浴室,作者担心妈妈,但是妈妈却笑了,前后是转折关系,“But” 表示 “但是”,所以选 A。 8. C 解析: 8. A 选项 “quickly”(快速地); 8. B 选项 “deeply”(深深地); 8. C 选项 “scientifically”(科学地); 8. D 选项 “finally”(最后)。从那以后,作者开始更科学地思考,不再轻易相信有鬼魂之类的,所以选 C。 9. B 解析:作者知道那个声音是风引起的后,意识到世界上没有鬼魂,“no” 表示 “没有”,所以选 B。 二、阅读理解 A 篇 0. C 解析:根据 “Some schools in Portland and Florida started the rule — no hugging in 2010. Two years later some schools in New Jersey and Brooklyn made the same rule.” 可知 2010 年波特兰和佛罗里达的一些学校开始实行 “禁止拥抱” 的规定,两年后也就是 2012 年新泽西和布鲁克林的一些学校也制定了同样的规定,所以选 C。 1. C 解析:根据 “No Ugg boots (Ugg 靴子)” 部分的 “It’s to stop them from hiding things like mobile phones in the boots.” 可知宾夕法尼亚的一所学校不允许学生穿 Ugg 靴子进教室是为了防止他们在靴子里藏手机,也就是宾夕法尼亚的这所学校不允许手机进教室,所以选 C。 2. B 解析:根据 “Interested? Click (点击) here to read more.” 可知这篇材料来自网站,所以选 B。 B 篇 0. B 解析:文章列举了 “Wrong idea No. 1”“Wrong idea No. 2”“Wrong idea No. 3”,共三个关于发明的错误观点,所以选 B。 1. D 解析:根据 “The Wright Brothers, got the idea for building a “flying machine” from watching birds.” 可知莱特兄弟从观察鸟类中获得了制造 “飞行器” 的想法,所以选 D。 2. A 解析:根据 “The biggest secret about inventing is that anybody can do it!” 可知作者认为任何人都能进行发明创造,所以选 A。 3. D 解析:文章主要介绍了关于发明的一些错误观点并纠正,鼓励人们进行发明创造,“Be an Inventor”(成为一名发明家)符合文章主旨,所以选 D。 C 篇 0. C 解析:根据 “It began during the Western Han Dynasty” 可知丝绸之路始于西汉时期,所以选 C。 1. D 解析:根据 “It was about 6, 500 kilometers long and went across one - fourth of the planet.” 可知古代丝绸之路大约 6500 公里长,跨越了地球的四分之一,所以选 D。 2. A 解析:根据 “The Silk Road got its name in the 19th century because Chinese silk used to be carried along this road.” 可知丝绸之路得名是因为中国的丝绸过去常常沿着这条路运输,所以选 A。 3. C 解析: 3. A 选项根据 “It was more than an ancient international trade route.” 可知丝绸之路不只是一条古代国际贸易路线,A 错误; 3. B 选项文中未提及到目前为止中国政府已经修建了许多新的丝绸之路,B 错误; 3. C 选项根据 “It was more than an ancient international trade route. Besides trade, knowledge about arts, science and literature, as well crafts and technologies was shared across the Silk Road. In this way, languages and cultures developed and influenced each other.” 可知丝绸之路是连接东西方的重要交流通道,C 正确; 3. D 选项丝绸之路促进了东西方语言和文化的发展和相互影响,而不是阻止,D 错误。所以选 C。 D 篇 0. C 解析:如果约翰・安东尼・韦斯特说的是对的,那么人们对古代文明所了解的一切都得彻底改变,“revised” 意思是 “改变”,与 “Changed” 意思相近,所以选 C。 1. B 解析:根据 “Their research suggested that the Sphinx had been worn down (磨损) over the years by water” 可知他们的研究表明狮身人面像是被水磨损的,所以选 B。 2. C 解析:第四段主要解释了为什么韦斯特认为狮身人面像建造的时间更早,也就是他持有这种观点的原因,所以选 C。 3. A 解析: 3. A 选项根据 “Whether West is right or wrong, it’s important to challenge accepted ideas. That’s how science progresses.” 可知科学是通过提出不同观点而进步的,A 正确; 3. B 选项文章只是介绍了韦斯特的观点,并没有表明作者认同埃及文明应该比人们认为的更早,B 错误; 3. C 选项文章重点强调挑战现有观点对科学进步的重要性,而非在发表观点前要做研究,C 错误; 3. D 选项根据 “Don’t always believe everything your teachers tell you.” 可知作者认为孩子们不应该总是相信老师说的一切,D 错误。所以选 A。 E 篇 0. B 解析:根据 “People lived on farms away from other families.” 以及 “Then they saw their friends and neighbors there.” 可知人们住得离其他家庭远,他们会去一个地方见到朋友和邻居,B 选项 “他们每周或每月进城一次” 符合语境,所以选 B。 1. D 解析:根据 “They asked for help.” 以及后文大家一起帮忙建房可知,他们会请朋友和邻居来帮忙,D 选项 “他们邀请朋友和邻居,邀请他们加入一个工作小组几天” 符合语境,所以选 D。 2. E 解析:根据 “A big job can be easy because of cooperation. Many people can work together.” 可知很多人一起合作,大工作会变得容易,E 选项 “那么这项工作就不会困难” 符合语境,所以选 E。 3. A 解析:根据 “Today, there isn't much cooperation. People don't work together very often.” 可知现在人们不常合作,所以有些人不认识邻居,A 选项符合语境,所以选 A。 4. C 解析:根据 “Why not always cooperate? Why not work with other people? You'd better not wait for emergencies or accidents.” 可知作者倡导人们要合作,C 选项 “如果你总是和别人一起工作,会很有趣,生活也会变得更轻松” 符合语境,所以选 C。 三、短文填空 0. colorful 解析:此处修饰名词 “kites”,要用形容词,“colorful” 表示 “五颜六色的”,符合语境,天空中充满了五颜六色不同形状的风筝。 1. chose 解析:根据 “they went to a kite shop” 可知他们去风筝店选风筝,“chose” 是 “choose” 的过去式,表示 “选择”。 2. to fly 解析:“start to do sth.” 表示 “开始做某事”,“fly the kite” 表示 “放风筝”,所以填 “to fly”。 3. higher 解析:根据 “which made the son much happier” 以及前文儿子认为剪掉线风筝会飞得更高,可知此处表示风筝开始飞得更高了,用 “higher”。 4. Slowly 解析:此处修饰动词 “fell”,要用副词,“slowly” 表示 “慢慢地”,风筝慢慢地落在了草地上。 5. but 解析:“not...but...” 表示 “不是…… 而是……”,此处表示线的作用不是阻止风筝飞得更高,而是帮助它留在空中,所以填 “but”。 6. itself 解析:“itself” 是反身代词,“the kite itself” 表示 “风筝本身”,风筝本身不能飞起来。 7. direction 解析:“in the right direction” 表示 “朝着正确的方向”,用线可以帮助风筝朝着正确的方向上升。 8. most 解析:“most” 表示 “最”,此处表示这些可能是最支持我们的东西。 9. importance 解析:“the importance of...” 表示 “…… 的重要性”,通过意识到这些东西的重要性,我们才能真正成长和变得更强。 四、语法填空 0. Eyes 解析:与 “Hands” 并列,都用复数形式,“Eye” 的复数是 “Eyes”,表示 “眼睛盯着书”。 1. a 解析:“a 14 - year - old high school student” 表示 “一名 14 岁的高中生”,“14” 发音以辅音音素开头,用 “a”。 2. learning 解析:“instead of” 是介词短语,后接动名词,“learn” 的动名词是 “learning”。 3. really 解析:修饰动词 “see” 要用副词,“real” 的副词形式是 “really”,表示 “真的”。 4. went 解析:根据 “Fast forward 20 years.” 可知是 20 年后的事情,用一般过去时,“go” 的过去式是 “went”。 5. how 解析:“疑问词 + 不定式” 结构,“how to type” 表示 “如何打字”,作者的身体记得如何打字。 6. but 解析:“not only...but also...” 表示 “不但…… 而且……”,是固定搭配。 7. of 解析:“be full of...” 表示 “充满……”,是固定短语,生活是一段充满爱、学习和帮助的漫长旅程。 8. yourself 解析:“trust yourself” 表示 “相信自己”,作者鼓励相信自己。 9. better 解析:与 “more beautiful” 并列,用比较级,“good” 的比较级是 “better”,用你拥有的每一项才能让这个世界变得更美好。 五、阅读表达 0. It came from Africa. 解析:根据 “There is an old story that says coffee was discovered in Africa long, long time ago.” 可知咖啡来自非洲。 1. It was first used as medicine in Arabia. 解析:根据 “Then coffee was taken from Africa to Arabia (阿拉伯半岛),and there it was first used as medicine.” 可知在阿拉伯半岛咖啡最初被用作药物。 2. Because people found that coffee plants grew well in many parts of South America. 解析:根据 “People found that coffee plants grew well in many parts of South America, so large coffee farms were started” 可知因为人们发现咖啡树在南美洲的许多地方长得很好,所以在南美洲开办了大型咖啡农场。 3. They picked coffee beans from the plants by hand. 解析:根据 “On these farms, coffee beans were picked from the plants by hand.” 可知人们用手从植物上采摘咖啡豆。 4. To produce different kinds of coffee. 解析:根据 “Different coffee beans were mixed together to produce different kinds of coffee.” 可知人们把不同的咖啡豆混合在一起是为了生产不同种类的咖啡。 六、书面表达 How was the ball - point pen invented? The ball - point pen was invented by John Loud, an American man in 1888. It has many advantages. It can help us write faster and makes our life easier. It is widely used in many fields. Also, it is not expensive. However, it has disadvantages. It needs refilling and sometimes leaks. Over time, the ball - point pen has changed. It has become smaller and lighter, which makes it more convenient to carry. 学科网(北京)股份有限公司 $$