Unit 2 单元检测（深圳专用）-八年级英语上册单元高效复习必备（沪教版2024）

Unit 2 Amazing numbers 单元检测（深圳专用） 温馨提示： 本试卷共分第Ⅰ卷和第Ⅱ卷两部分，第Ⅰ卷为选择题；第Ⅱ卷为非选择题；满分为75分，考试时间为70分钟。 第一部分选择题（50分） I. 完形填空 （10分）(文章嵌入本单元所学的单词和短语，极好吻合课文所学知识) 阅读下面短文, 从短文后所给的 A、B、C、D 四个选项中选出能填入相应空白处的最佳选项, 并在答题卡上将相应字母编号涂黑。（共 10 小题, 每小题1分） What does "sanshe" stand for in the idiom tuibi sanshe (退避三舍)? In ancient China, "she" ____16____ a unit of distance. One she counts as 30 li. One li is 500 meters, so sanshe is 45 kilometers! This interesting number comes from a story behind the ___17___. During the Spring and Autumn Period (770 BC–476 BC), Prince Chong’er of Jin had to leave his home. He ____18___ where to go and wanted to travel to other states. When he got to the state of Chu, King Chengwang gave him a big feast. The king ____19____ Chong’er with a question: "If you become the ruler of Jin, how will you thank me?" Chong’er thought for a moment. "Your state has so many good things," he said. "I have nothing special." But the king still wanted a ____20____answer_. Finally, Chong’er said without ____21____: "If our armies fight, I’ll ask my soldiers to retreat(撤退) sanshe." The king agreed and smiled. Years later, Chong’er returned to Jin and became King Wengong. Both states wanted to be stronger, so they went to war. King Wengong didn’t break his ___22___—he ordered a retreat to Chengpu, sanshe away. The Chu soldiers thought Jin was afraid and ___23____ them. Suddenly, Jin’s army surrounded (包围)them! In the end, Jin won the famous Battle of Chengpu. Today, tuibi sanshe ____24____to step back to avoid a fight. It’s a story where a promise counts, and "sanshe" isn’t just a number—it’s a way of solving problems____25____! 16. A. stood out B. stood for C. stands up D. stands by 17. A. problem B. decision C. proverb D. idiom 18. A. doubled B. wondered C. knew D. understood 19. A. invited B. suggested C. challenged D. advised 20. A. right B. proper C. exact D. happy 21. A. determination B.hesitation C. decision D.resolution 22. A. promise B. require C. trust D. need 23. A.met B. cheated C. followed D. caught 24. A. replace B. represented C. presented D. remember 25. A. wisely B. exactly C.sharply D. currently 【答案】BDBCC BACBA 【解析】本文讲述了“退避三舍”的典故。 16.B. 句意：在中国古代，“舍” 代表一种距离单位。考查动词短语辨析。stood out（突出）、stands up（站立）、stands by（支持）均不符合语境；stood for 表示 “代表”，符合 “舍” 作为距离单位的定义。故选 B。 17.D. 句意：这个有趣的数字源于该成语背后的故事。考查名词辨析。problem（问题）、decision（决定）、proverb（谚语）均与 “退避三舍” 这一成语无关；idiom 表示 “成语”，符合上下文。故选 D。 18.B 句意：他琢磨着该去哪里，想要前往其他国家。考查动词辨析。doubled（加倍）、knew（知道）、understood（理解）不符合 “思考去向” 的语境；wondered 表示 “疑惑、琢磨”，符合重耳流亡时的状态。故选 B。 19. C。句意：楚王用一个问题挑战重耳。考查动词辨析。invited（邀请）、suggested（建议）、advised（劝告）均与 “提问” 的动作不符；challenged 表示 “挑战”，体现楚王以问题试探重耳的意图。故选 C。 20. C句意：但楚王仍然想要一个确切的回答。exact 表示 “精确的，确切的”，符合语境，指楚王希望重耳给出明确的答复。其他选项中，right（正确的）、proper（适当的）、happy（快乐的）均不符合语义。 21 B 句意：最终，重耳毫不犹豫地说。考查名词辨析。determination（决心）、decision（决定）、resolution（决心）均与 “没有犹豫” 的语义不符；hesitation 表示 “犹豫”，without hesitation 为固定搭配，意为 “毫不犹豫”。故选 B。 22.A句意：晋文公没有违背他的承诺。考查名词辨析。require（要求）、trust（信任）、need（需要）均与 “遵守诺言” 无关；promise 表示 “承诺”，break one’s promise 为固定短语，意为 “违背承诺”。故选 A。 23. C 句意：楚军认为晋军害怕，便跟随他们。考查动词辨析。cheated（欺骗）、met（遇见）、caught（抓住）不符合 “追击撤退的晋军” 的语境；followed 表示 “跟随”，指楚军追击导致被包围。故选C。 24. B 句意：如今，“退避三舍” 代表着让步以避免冲突。考查动词辨析。replace（代替）、presented（呈现）、remember（记住）均不符合 “成语象征意义” 的表达；represented 表示 “代表”，符合成语的现代含义。故选 B。 25.A句意：“三舍” 不仅是一个数字，更是一种明智解决问题的方式。考查副词辨析。exactly（确切地）、sharply（锐利地）、currently（当前）均与 “智慧解决冲突” 的语义无关；wisely 表示 “明智地”，体现成语所蕴含的处世哲学。故选 A。 II阅读理解 （40分） 第一节 阅读下列短文, 从每小题所给的 A、B、C、D 四个选项中选山最佳选项, 并在答题卡上将相应字母编号涂黑。（共 15 小题, 每小题2分） A You may feel that math is hard and boring. Is it possible that you’ve been looking at math in the wrong way? With International Day of Math coming on March 14, Teens interviewed Li Xing, a math professor (教授) at Ning Xia University. We asked if math can be beautiful and fun. Here’s what he said. Numbers are beautiful Many people today want to have beautiful looks. But there is math hidden in beautiful human bodies. Measure (测量) the length from your head to your belly button (肚脐) and from your belly button to your feet. The ratio (比例) of these two numbers is always around 0.618. This is the golden ratio, which can be seen everywhere, like in nature, music and paintings. In Chinese poems, we can also see the beauty of numbers, As Li Bai wrote, “I’ve sailed a thousand miles through Gorges in a day”, “My boat has left ten thousand mountains far away”. “A thousand miles in one day”, “ten thousand mountains”—the numbers show how fast Li Bai traveled and how happy he felt. Numbers give us freedom to imagine. Curves are beautiful Sine curves (正弦切线) are beautiful. They go towards the two opposite directions on and on without ever ending. When you look at them, you may feel like standing by the sea and watching the waves slowly moving. The tangent curve (正切曲线) is like a waterfall. That’s really “dashing down three thousand feet from on high (飞流直下三千尺)”. If you do a math problem and get that curve, you’ll feel wonderful. Formulas (公式) are beautiful What’s more, you may not know Euler’s Formulas: e^(iπ) +1=0. It’s beautiful, too. The number “e” is an irrational number (无理数), whose digits (位数) go on and on and never stop. “π” is also such an irrational number. However, when these two numbers come together, things become different. How amazing! Just as the Chinese-American mathematician Chern Shiing-shen said, “Math is fun!” 11. If the ratio of a thing is around 0.618, ________. A. it has a golden color B. it will look like a human body C. it is as long as a person’s leg D. it can bring us a sense of beauty 12. What can we know from the poem of Li Bai in this text? A. Li Bai was good at counting numbers. B. Li Bai used numbers to show his feelings. C. Li Bai succeeded in solving math problems. D. Li Bai loved traveling by boat along the river. 13. What does a sine curve look like? A. B. C. D. 14. We can infer from the passage that ________. A. Li Xing thinks math is difficult and boring B. we can often see the golden ratio in the drawings C. then tangent curve is always three thousand feet high D. e^(iπ) isn’t an irrational number 15. What is the passage mainly about? A. Math is hard and important. B. The life of a math professor. C. Math is beautiful and interesting. D. The International Day of Math. 【答案】11. D 1 2. C 13. A 14. D 15. C 【导语】本文主要通过黄金比例、诗歌中的数字、曲线和公式等方面展示了数学的美。 11. 细节理解题。根据“Measure the length from your head to your belly button and from your belly button to your feet. The ratio of these two numbers is always around 0.618. This is the golden ratio, which can be seen everywhere, like in nature, music and paintings.”可知，物体的比例约为0.618，它可以给我们带来美感。故选D。 12. 细节理解题。根据“all these numbers show how fast Li Bai traveled and how happy he felt. Numbers give us the freedom to imagine.”可知，这些数字表明李白的旅行速度很快，心情很愉悦，即李白用数字来表达他的感情。故选B。 13. 推理判断题。根据“Sine curves are beautiful. They go towards the two opposite directions on and on without ever ending. When you look at them, you may feel like standing by the sea and watching the waves slowly moving.”可知，正弦曲线朝着两个相反的方向不断前进，永无止境。当你看着它们时，你可能会觉得自己站在海边，看着海浪慢慢移动。故选A。 14. 推理判断题。根据最后一段“ e^(iπ) +1=0.”可推知，e^(iπ)数值为-1，为具体的数值，而不是无理数。故选D。 15. 主旨大意题。根据“Numbers are beautiful”和“Just as the Chinese-American mathematician Chern Shiing-shen said, ‘Math is fun!’”以及全文可知，这篇文章主要讲数学是美丽而有趣的。故选C。 B Doing housework is a key part of family life. It helps improve the relationship among family members. However, lots of Chinese parents are unaware of the importance of doing housework and they think it is a waste of time. In order to know how often middle school students do housework at home, we did a survey among 1,200 students from Grade 7 to Grade 9 in a middle school. The following bar chart shows the result of our survey. From the bar chart, we find that only a small number of students usually do housework. Nearly half of the students in Grade 9 never do housework. The result makes us worried. After all, doing housework is good for students. It can teach students many important skills, like planning, timing, solving problems and so on. Doing housework can also teach students what responsibility is. Everyone should do something for the family. What’s more, doing housework can help students relax themselves and keep a balance between study and life. Therefore, we suggest that parents should encourage their children to do housework. They must learn one or two life skills every year so that they can be better prepared for an independent life in the future. 16. What can we learn from the bar chart? A. Students in all grades actively take part in housework. B. Over half of the students in Grade 8 never do housework. C. Students in Grade 7 do housework more often than students in Grade 9. D. The result of Grade 9 students is the least worrying among all grades. 17.What can we infer from the fact that nearly half of the Grade 9 students never do housework? A. Grade 9 students are the laziest among the three grades. B. Parents of Grade 9 students may not encourage them to do housework. C. Grade 9 students have no time to do housework because of their studies. D. Housework is too difficult for Grade 9 students. 18. Which is NOT an advantage of doing housework? A. Relaxing a busy mind. B. Saving more time for study. C. Practising planning and timing skills. D. Learning to be independent from parents. 19. What does the underlined word “responsibility” probably mean in paragraph 4? A. Skill. B. Ability. C. Duty. D. Method. 20. What’s the purpose of the passage? A. To show the result of a recent survey. B. To teach students how to do housework. C. To remind parents the importance of doing housework. D. To point out a worrying problem for teachers in school. 【答案】16. C 17 B 18. B 19. C 20. C 【解析】本文为一篇说明文。展示了中学生在家中做家务的频率。调查结果显示，只有少数学生通常会做家务，几乎有一半的九年级学生从不做家务。这个结果让我们感到担忧。 16. 细节理解题。根据条形图可知，七年级经常做家务的人数是126人，九年级经常做家务的人数是116人，所以七年级的学生比九年级的学生更经常做家务。故选C。 17.B. 推理判断题。文章提到很多中国家长没有意识到做家务的重要性，认为这是浪费时间，而近一半九年级学生从不做家务，由此可推断出九年级学生的家长可能没有鼓励他们做家务。A 选项说九年级学生是三个年级中最懒的，过于绝对；文中未提及九年级学生不做家务是因为学习没时间，C 选项排除；文章也没有说家务对九年级学生来说太难，D 选项排除。所以选 B。 18. 细节理解题。根据第四段“It can teach students many important skills, like planning, timing, solving problems and so on.”（它可以教会学生许多重要的技能，如计划、时间安排、解决问题等。）和“What’s more, doing housework can help students relax themselves and keep a balance between study and life.”（此外，做家务可以帮助学生放松自己，保持学习和生活之间的平衡。）以及最后一段“They must learn one or two life skills every year so that they can be better prepared for an independent life in the future.”（他们必须每年学习一两项生活技能，以便为将来的独立生活做好准备。）可知，没有提到“节省了更多的学习时间”。故选B。 19. 词句猜测题。根据第四段“Everyone should do something for the family.”（每个人都应该为家庭做点什么。）可知，做家务还可以教会学生什么是责任，所以“responsibility”是“责任”的意思。故选C。 20. 主旨大意题。通读全文，尤其根据最后一段“Therefore, we suggest that parents should encourage their children to do housework. They must learn one or two life skills every year so that they can be better prepared for an independent life in the future.”（因此，我们建议父母应该鼓励孩子做家务。他们必须每年学习一两项生活技能，以便为将来的独立生活做好准备。）可知，文章的目的是提醒父母做家务的重要性。故选C。 C In the world of artificial intelligence (AI), an unexpected success story is in the news. DeepSeek, a Chinese AI company that started just last year, has done something amazing. Although it had fewer tools and equipment than big companies, it has created an AI system that works as well as those made by the world’s largest tech companies, and sometimes even better. Its latest AI model, shown to the public in December 2024, shows a new way of thinking about technology. ▲ While big tech companies depend on powerful computers, DeepSeek found a special path forward. It’s like solving a picture puzzle (拼图): Instead of trying every piece one by one, it discovered clever methods to match the right pieces quickly. What it has achieved is amazing. DeepSeek used only 2,048 computer chips (芯片) to build its system, while other companies usually need more than 16,000. Its AI can deal with information very fast. It is able to manage 60 pieces of information in just one second. This triumph comes from smart design, not just good programming. What makes its achievement special is that it faced many challenges. While large companies can easily buy the newest technology, DeepSeek only had a small number of computer parts. However, it turned this problem into a chance to create better methods and better ways of working. The success of DeepSeek teaches us something important: Having the biggest and most expensive tools isn’t always necessary to achieve great things. Its story proves that creative thinking and smart solutions (方法) can help overcome difficult challenges in technology. 21. Which of the following can be put in “ ▲ ” in Paragraph 2? A. Its success is a result of years of research and development. B. Many experts believe that Al will replace humans in the future. C. The success has made DeepSeek a leader in the Al industry. D. By using less to do more, it showed what a small company could achieve. 22. What does the underlined word “triumph” in Paragraph 3 most probably mean? A. Problem. B. Method. C. Success. D. Experience. 23. What was the problem DeepSeek had when building its AI system? A. It could not get enough latest computer parts. B. It did not have enough money for the project. C. It did not have enough experienced researchers. D. It had too much competition from big companies. 24. Which of the following can best describe the difference between DeepSeek and large companies? A. B. C. D. 25. What is the main idea of this article? A. Chinese companies are better than others at making AI. B. Smart thinking and solutions can help achieve success. C. AI technology has developed very quickly in recent years. D. Big companies always have advantages over small ones. 【答案】21. D 22. C 23. A 24. D 25. B 【导语】本文讲述中国AI公司DeepSeek的逆袭故事，文章通过这一案例揭示，技术突破不依赖资源规模，而取决于创造性思维与智能解决方案。 21. 推理判断题。根据第二段“While big tech companies depend on powerful computers, DeepSeek found a special path forward”可知，尽管大型科技公司依赖强大的计算机，DeepSeek却找到了一条独特的前进之路。此处需体现DeepSeek与大公司的对比——以更少资源实现更高效能。故选D。 22. 词句猜测题。根据“DeepSeek used only 2,048 computer chips... while other companies usually need more than 16,000”以及其AI处理速度达“60 pieces of information in just one second”可知，此处用具体数据证明DeepSeek的技术突破，triumph指代这一成功。故选C。 23. 细节理解题。根据第四段“While large companies can easily buy the newest technology, DeepSeek only had a small number of computer parts”可知，其核心问题是“无法获取足够的最新计算机部件”。故选A。 24. 细节理解题。文章多次强调 DeepSeek 的“资源高效性”：大公司依赖“16,000 + 芯片”和“powerful computers”，而DeepSeek通过“smart design”仅用“2,048 芯片”实现同等性能。说明DeepSeek的性能要好于Large companies，而其费用要少于Large companies。故选D。 25. 主旨大意题。根据“creative thinking and smart solutions can help overcome difficult challenges”可知，创造性思维和巧妙的解决方案有助于克服技术领域的艰巨挑战。此处明确点明“创新思维的决定性作用”。故选B。 第二节 短文填空 以下是一则短文, 请阅读短文, 并从下列六个句子中选择五个还原到原文中, 使原文的意思完整、连贯。并在答题卡上将相应的字母编号涂黑。（共5 小题, 每小题1分） Have you ever counted the number of digits (数字) in your mobile phone number? Your number has 11 digits. You may sometimes find it hard to remember your number. 26 Why is that? The 11 digits can be divided into three parts. 27 The first three numbers tell you which mobile phone service provider you are using. For example, 135 is for China Mobile Communication Corporation and 188 is for China Unicom. The fourth to the seventh digits tell you which area the number is recorded in. And the last four digits are random (随机的). 28 We once had 10 digits. But as our population grew, there were not enough numbers for us to use. So we began to use 11 digits starting from 1999. Eleven digits can be used to make tens of billions of mobile phone numbers. That’s enough for each person to have seven or eight phone numbers to use in China. 29 Usually, the service provider will reuse a canceled number after three to six months. If you call a number that you haven’t contacted (联络) for a long time, you may find that its owner has changed. Besides China, Britain and Japan also use 11-digit mobile phone number. But their numbers always start with 0. 30 Countries like the USA, Australia and India use phone numbers with 10 digits. Canada’s mobile phone numbers are perhaps the world’s shortest: they use seven digits. A. That’s because China has the longest mobile phone numbers in the world. B. Also, mobile phone numbers can be recycled. C. We have all kinds of phones. D. Each part has a different meaning. E. So they cannot create as many numbers as we can. F. The main reason for 11 digits is that we have the largest population in the world. 【答案】26. A 27. D 28. F 229. B 30. E 【导语】本文主要讲述了手机号码的位数、结构、变化及其在不同国家之间的差异。 26. 根据“You may sometimes find it hard to remember your number. … Why is that?”可知，此处是在解释为什么有时会觉得手机号码难以记住，选项B“那是因为中国的手机号码是世界上最长的”符合语境，提供了一个可能的解释，即因为号码长所以难以记住。故选A。 27. 根据“The 11 digits can be divided into three parts. …”可知，此处是在介绍手机号码11位数字的划分，D选项“每一部分都有不同的含义”符合语境，引出了下文对每一部分含义的详细解释。故选D。 28. 根据“We once had 10 digits. But as our population grew, there were not enough numbers for us to use. So we began to use 11 digits starting from 1999.”可知，此处需要解释从10位增加到11位的原因。选项G“11位数字的主要原因是世界上人口最多”符合语境，直接回应了这一点，解释了人口增长导致号码位数增加的原因。故选F。 29. 根据“Usually, the service provider will reuse a canceled number after three to six months.”可知，手机号码可以重复利用。选项C“此外，手机号码可以回收”符合语境。故选B。 30. 根据“But their numbers always start with 0.”可知，此处需要解释手机号码以0开头的影响。选项F“所以他们不能像我们一样创造那么多数字”符合语境，解释了因为以0开头，所以可组成的手机号码数量受到限制，不如中国多（中国不以0开头，且是11位，可组成的数量更多）。故选E。 第三节 信息匹配（共 5小题, 每小题1分） 下面的材料A～F分别介绍了六本不同的文学作品。请根据Juan, Melody, Catherine, Adam, Fiona的实际情况，为他们推荐适合的读物。 31 Juan, a big fan of science works, enjoys anything about space secrets. 32 Melody likes reading novels with determined and brave female characters. 33 Catherine needs to finish a learning project about black people’s lives in the past. 34 Adam plans to write a play to tell stories of different people behind society’s changes. 35 Fiona, a new teacher, wants to better understand and help teenagers with growing pains. A. Gone with the Wind by Margaret Mitchell This novel focuses on the life and challenges of Scarlett O’Hara, a strong-willed lady who experiences love and survival during the American Civil War. B. The Three-body Problem by Cixin Liu In this science fiction novel, the author explores complex themes of science, philosophy (哲学), and the unexpected results of outer-space contact. C. Uncle Tom’s Cabin by Harriet Beecher Stowe This famous novel describes the realities of slavery (奴隶制) in America through the experiences and sufferings of Uncle Tom and the people around him. D. War and Peace by Leo Tolstoy This masterpiece follows the ups and downs of several upper-class Russian families, exploring human nature and the society of the time. E. The Catcher in the Rye by J. D. Salinger This work presents how Holden Caulfield, a “bad student” teenager, thinks about his life, society, and place within it after being removed from school. F. Teahouse by Lao She Telling the life of a Beijing teahouse owner and various customers, this play offers a window into Chinese society through the changes of the 20th century. 【答案】31. B 32. A 33. C 34. F 35. E 【导语】本文介绍了六本不同的文学作品以及五个人的实际情况。 31. 根据“Juan, a big fan of science works, enjoys anything about space secrets”可知Juan是科学作品的忠实粉丝，喜欢任何关于太空秘密的东西，选项B“刘慈欣的《三体》在这部科幻小说中，作者探讨了科学、哲学和外太空接触的意外结果等复杂主题”符合。故选B。 32. 根据“Melody likes reading novels with determined and brave female characters”可知Melody喜欢读有决心和勇敢女性角色的小说，选项A“玛格丽特·米切尔的《飘》这部小说聚焦于斯嘉丽·奥哈拉的生活和挑战，斯嘉丽·奥哈拉是一位意志坚强的女士，在美国内战期间经历了爱情和生存”符合。故选A。 33. 根据“Catherine needs to finish a learning project about black people's lives in the past”可知Catherine需要完成一个关于黑人过去生活的学习项目，选项C“哈里特·比彻·斯托的《汤姆叔叔的小屋》这部著名的小说通过汤姆叔叔和他周围的人的经历和痛苦，描述了美国奴隶制的现实”符合。故选C。 34. 根据“Adam plans to write a play to tell stories of different people behind society’s changes”可知Adam计划写一部戏剧，讲述社会变革背后不同的人的故事，选项F“老舍的《茶馆》这部戏剧讲述了一位北京茶馆老板和各种顾客的生活，通过20世纪的变化为中国社会提供了一扇窗户”符合。故选F。 35. 根据“Fiona, a new teacher, wants to better understand and help teenagers with growing pains”可知Fiona是一名新教师，她想更好地理解和帮助有成长烦恼的青少年，选项E“J·D·塞林格的《麦田里的守望者》这部作品展示了霍尔顿·考尔菲德，一个‘坏学生’青少年，在被学校开除后是如何思考自己的生活、社会和社会地位的”符合。故选E。 第二部分 非选择题（25分） III. 语法填空（10分） 阅读下面短文, 在空白处填入一个适当的单词或括号内单词的正确形式。 Once upon a time, there were no 36 (river) or lakes on the earth but only the Eastern Sea in China. There lived four dragons: the Long Dragon, the Yellow Dragon, the Black Dragon and the Pearl Dragon. One day, 37 four dragons flew from the sea into the sky. They saw it was so hot and dry everywhere 38 many people were praying (祈求) for rain! Seeing that, the Long Dragon advised, “Let’s go and ask the Jade Emperor (玉皇大帝) for rain.” Hearing what they said, the Jade Emperor 39 (reply), “All right. I’ll send some rain down tomorrow.” However, over one week passed, and not a drop of rain came down. The four dragons felt sorry and 40 (worry). They knew the Jade Emperor never cared much 41 the people. To save the poor people, they decided to spray (喷洒) seawater towards the sky. 42 (quick) the water poured down like rain and saved the people and their crops. The Jade Emperor soon knew ___43___ the four dragons did. He was very angry and ordered Mountain God 44 (pull) four mountains down upon the four dragons. Even so, the four dragons still wanted to help the poor people. They then turned 45 (them) into four rivers. Since then, China’s four great rivers have run across the country like four huge dragons. 【答案】36. rivers 37. the 38. that 39. replied 40. worried 41. about 42. Quickly 43.what 44. to pull 45. themselves 【导语】本文主要讲述了四条龙为了拯救人民向天空喷射海水，并在最后变成中国四大河流的故事。 36. 句意：从前，地球上没有河流湖泊，只有中国的东海。此处需用复数表泛指，故填rivers。 37. 句意：有一天，这四条龙从海里飞到空中。此处特指前文提到的四条龙，故用定冠词the。故填the。 38. 句意：它们看到到处都很热很干燥，以至于许多人都祈求下雨！so…that“如此……以至于”，故填that。 39. 句意：听到他们说的话，玉皇大帝回答说：“好吧。我明天就送些雨下来。”根据上下文时态可知，此处应用一般过去时，动词用过去式。故填replied。 40. 句意：这四条龙感到很抱歉并且很担心。此处和sorry并列，应用形容词worried，作表语。故填worried。 41. 句意：它们知道玉皇大帝从不太关心人民。care about意为“关心”，固定搭配。故填about。 42. 句意：很快，水像雨一样倾泻而下，救了人民和他们的庄稼。此处应用副词quickly作状语，修饰整个句子。故填Quickly。 43. 句意：玉帝知道他们所做的事情，这里what引导宾语从句。 44. 句意：他非常生气，命令山神把四座大山拉到四条龙的身上。order sb. to do sth.意为“命令某人做某事”，固定短语。故填to pull。 45. 句意：然后，他们把自己变成四条河流。主语是they，此处应用其反身代词themselves，指把自己变成四条河流。故填themselves。 第四节、书面表达（15分） 发明改变了世界，改变了人们的生活。因为各种各样的发明，我们的生活变得越来越舒适与便捷。假设你是李华，最近你和同学在校园里做了一项关于“我最喜爱的发明”的调查，请你写一篇英语短文，报告此次调查的结果，并谈谈你心目中最重要的发明是什么及其原因，短文需包括以下要点： Invention light fridge car the Internet Data 32% 10% 13% 45% Reasons 夜里照明 食物保鲜 随时随地出行 生活便利 Your opinion （请补充） 要求： 1. 约80词左右，开头已经给出，不计入总词数。 2. 可适当发挥，但要注意语言通顺，流畅，准确。 3. 不得透露班级、姓名等任何个人信息，否则不予评分。 There are many inventions in history and some of them have greatly changed the world. Recently, we did a survey on “What’s your favorite invention” in our school, and here is the result. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 【答案】例文 There are many inventions in history and some of them have greatly changed the world. Recently, we did a survey on “What’s your favorite invention” in our school, and here is the result. Electric lights can make people light at night. It is used 32% of the year. Fridge keeps food fresh. It is used 10% of the year. Car enable people to travel anywhere and anytime. It is used 13% of the year. The Internet makes life convenient. It is used 45% of the time a year. I think these inventions make our life more convenient. They are very useful. Because of these inventions, we can better experience life and relax ourselves. I think the Internet is the most important invention. Because of it, the world becomes smaller and smaller. We can keep abreast of the latest events around the world anytime or anywhere. 2 / 2 学科网（北京）股份有限公司 $$ Unit 2 Amazing numbers 单元检测（深圳专用） 温馨提示： 本试卷共分第Ⅰ卷和第Ⅱ卷两部分，第Ⅰ卷为选择题；第Ⅱ卷为非选择题；满分为75分，考试时间为70分钟。 第一部分选择题（50分） I. 完形填空 （10分）(文章嵌入本单元所学的单词和短语，极好吻合课文所学知识) 阅读下面短文, 从短文后所给的 A、B、C、D 四个选项中选出能填入相应空白处的最佳选项, 并在答题卡上将相应字母编号涂黑。（共 10 小题, 每小题1分） What does "sanshe" stand for in the idiom tuibi sanshe (退避三舍)? In ancient China, "she" ____16____ a unit of distance. One she counts as 30 li. One li is 500 meters, so sanshe is 45 kilometers! This interesting number comes from a story behind the ___17___. During the Spring and Autumn Period (770 BC–476 BC), Prince Chong’er of Jin had to leave his home. He ____18___ where to go and wanted to travel to other states. When he got to the state of Chu, King Chengwang gave him a big feast. The king ____19____ Chong’er with a question: "If you become the ruler of Jin, how will you thank me?" Chong’er thought for a moment. "Your state has so many good things," he said. "I have nothing special." But the king still wanted a ____20____answer_. Finally, Chong’er said without ____21____: "If our armies fight, I’ll ask my soldiers to retreat(撤退) sanshe." The king agreed and smiled. Years later, Chong’er returned to Jin and became King Wengong. Both states wanted to be stronger, so they went to war. King Wengong didn’t break his ___22___—he ordered a retreat to Chengpu, sanshe away. The Chu soldiers thought Jin was afraid and ___23____ them. Suddenly, Jin’s army surrounded (包围)them! In the end, Jin won the famous Battle of Chengpu. Today, tuibi sanshe ____24____to step back to avoid a fight. It’s a story where a promise counts, and "sanshe" isn’t just a number—it’s a way of solving problems____25____! 16. A. stood out B. stood for C. stands up D. stands by 17. A. problem B. decision C. proverb D. idiom 18. A. doubled B. wondered C. knew D. understood 19. A. invited B. suggested C. challenged D. advised 20. A. right B. proper C. exact D. happy 21. A. determination B.hesitation C. decision D.resolution 22. A. promise B. require C. trust D. need 23. A.met B. cheated C. followed D. caught 24. A. replace B. represented C. presented D. remember 25. A. wisely B. exactly C.sharply D. currently II阅读理解 （40分） 第一节 阅读下列短文, 从每小题所给的 A、B、C、D 四个选项中选山最佳选项, 并在答题卡上将相应字母编号涂黑。（共 15 小题, 每小题2分） A You may feel that math is hard and boring. Is it possible that you’ve been looking at math in the wrong way? With International Day of Math coming on March 14, Teens interviewed Li Xing, a math professor (教授) at Ning Xia University. We asked if math can be beautiful and fun. Here’s what he said. Numbers are beautiful Many people today want to have beautiful looks. But there is math hidden in beautiful human bodies. Measure (测量) the length from your head to your belly button (肚脐) and from your belly button to your feet. The ratio (比例) of these two numbers is always around 0.618. This is the golden ratio, which can be seen everywhere, like in nature, music and paintings. In Chinese poems, we can also see the beauty of numbers, As Li Bai wrote, “I’ve sailed a thousand miles through Gorges in a day”, “My boat has left ten thousand mountains far away”. “A thousand miles in one day”, “ten thousand mountains”—the numbers show how fast Li Bai traveled and how happy he felt. Numbers give us freedom to imagine. Curves are beautiful Sine curves (正弦切线) are beautiful. They go towards the two opposite directions on and on without ever ending. When you look at them, you may feel like standing by the sea and watching the waves slowly moving. The tangent curve (正切曲线) is like a waterfall. That’s really “dashing down three thousand feet from on high (飞流直下三千尺)”. If you do a math problem and get that curve, you’ll feel wonderful. Formulas (公式) are beautiful What’s more, you may not know Euler’s Formulas: e^(iπ) +1=0. It’s beautiful, too. The number “e” is an irrational number (无理数), whose digits (位数) go on and on and never stop. “π” is also such an irrational number. However, when these two numbers come together, things become different. How amazing! Just as the Chinese-American mathematician Chern Shiing-shen said, “Math is fun!” 11. If the ratio of a thing is around 0.618, ________. A. it has a golden color B. it will look like a human body C. it is as long as a person’s leg D. it can bring us a sense of beauty 12. What can we know from the poem of Li Bai in this text? A. Li Bai was good at counting numbers. B. Li Bai used numbers to show his feelings. C. Li Bai succeeded in solving math problems. D. Li Bai loved traveling by boat along the river. 13. What does a sine curve look like? A. B. C. D. 14. We can infer from the passage that ________. A. Li Xing thinks math is difficult and boring B. we can often see the golden ratio in the drawings C. then tangent curve is always three thousand feet high D. e^(iπ) isn’t an irrational number 15. What is the passage mainly about? A. Math is hard and important. B. The life of a math professor. C. Math is beautiful and interesting. D. The International Day of Math. B Doing housework is a key part of family life. It helps improve the relationship among family members. However, lots of Chinese parents are unaware of the importance of doing housework and they think it is a waste of time. In order to know how often middle school students do housework at home, we did a survey among 1,200 students from Grade 7 to Grade 9 in a middle school. The following bar chart shows the result of our survey. From the bar chart, we find that only a small number of students usually do housework. Nearly half of the students in Grade 9 never do housework. The result makes us worried. After all, doing housework is good for students. It can teach students many important skills, like planning, timing, solving problems and so on. Doing housework can also teach students what responsibility is. Everyone should do something for the family. What’s more, doing housework can help students relax themselves and keep a balance between study and life. Therefore, we suggest that parents should encourage their children to do housework. They must learn one or two life skills every year so that they can be better prepared for an independent life in the future. 16. What can we learn from the bar chart? A. Students in all grades actively take part in housework. B. Over half of the students in Grade 8 never do housework. C. Students in Grade 7 do housework more often than students in Grade 9. D. The result of Grade 9 students is the least worrying among all grades. 17.What can we infer from the fact that nearly half of the Grade 9 students never do housework? A. Grade 9 students are the laziest among the three grades. B. Parents of Grade 9 students may not encourage them to do housework. C. Grade 9 students have no time to do housework because of their studies. D. Housework is too difficult for Grade 9 students. 18. Which is NOT an advantage of doing housework? A. Relaxing a busy mind. B. Saving more time for study. C. Practising planning and timing skills. D. Learning to be independent from parents. 19. What does the underlined word “responsibility” probably mean in paragraph 4? A. Skill. B. Ability. C. Duty. D. Method. 20. What’s the purpose of the passage? A. To show the result of a recent survey. B. To teach students how to do housework. C. To remind parents the importance of doing housework. D. To point out a worrying problem for teachers in school. C In the world of artificial intelligence (AI), an unexpected success story is in the news. DeepSeek, a Chinese AI company that started just last year, has done something amazing. Although it had fewer tools and equipment than big companies, it has created an AI system that works as well as those made by the world’s largest tech companies, and sometimes even better. Its latest AI model, shown to the public in December 2024, shows a new way of thinking about technology. ▲ While big tech companies depend on powerful computers, DeepSeek found a special path forward. It’s like solving a picture puzzle (拼图): Instead of trying every piece one by one, it discovered clever methods to match the right pieces quickly. What it has achieved is amazing. DeepSeek used only 2,048 computer chips (芯片) to build its system, while other companies usually need more than 16,000. Its AI can deal with information very fast. It is able to manage 60 pieces of information in just one second. This triumph comes from smart design, not just good programming. What makes its achievement special is that it faced many challenges. While large companies can easily buy the newest technology, DeepSeek only had a small number of computer parts. However, it turned this problem into a chance to create better methods and better ways of working. The success of DeepSeek teaches us something important: Having the biggest and most expensive tools isn’t always necessary to achieve great things. Its story proves that creative thinking and smart solutions (方法) can help overcome difficult challenges in technology. 21. Which of the following can be put in “ ▲ ” in Paragraph 2? A. Its success is a result of years of research and development. B. Many experts believe that Al will replace humans in the future. C. The success has made DeepSeek a leader in the Al industry. D. By using less to do more, it showed what a small company could achieve. 22. What does the underlined word “triumph” in Paragraph 3 most probably mean? A. Problem. B. Method. C. Success. D. Experience. 23. What was the problem DeepSeek had when building its AI system? A. It could not get enough latest computer parts. B. It did not have enough money for the project. C. It did not have enough experienced researchers. D. It had too much competition from big companies. 24. Which of the following can best describe the difference between DeepSeek and large companies? A. B. C. D. 25. What is the main idea of this article? A. Chinese companies are better than others at making AI. B. Smart thinking and solutions can help achieve success. C. AI technology has developed very quickly in recent years. D. Big companies always have advantages over small ones. 第二节 短文填空 以下是一则短文, 请阅读短文, 并从下列六个句子中选择五个还原到原文中, 使原文的意思完整、连贯。并在答题卡上将相应的字母编号涂黑。（共5 小题, 每小题1分） Have you ever counted the number of digits (数字) in your mobile phone number? Your number has 11 digits. You may sometimes find it hard to remember your number. 26 Why is that? The 11 digits can be divided into three parts. 27 The first three numbers tell you which mobile phone service provider you are using. For example, 135 is for China Mobile Communication Corporation and 188 is for China Unicom. The fourth to the seventh digits tell you which area the number is recorded in. And the last four digits are random (随机的). 28 We once had 10 digits. But as our population grew, there were not enough numbers for us to use. So we began to use 11 digits starting from 1999. Eleven digits can be used to make tens of billions of mobile phone numbers. That’s enough for each person to have seven or eight phone numbers to use in China. 29 Usually, the service provider will reuse a canceled number after three to six months. If you call a number that you haven’t contacted (联络) for a long time, you may find that its owner has changed. Besides China, Britain and Japan also use 11-digit mobile phone number. But their numbers always start with 0. 30 Countries like the USA, Australia and India use phone numbers with 10 digits. Canada’s mobile phone numbers are perhaps the world’s shortest: they use seven digits. A. That’s because China has the longest mobile phone numbers in the world. B. Also, mobile phone numbers can be recycled. C. We have all kinds of phones. D. Each part has a different meaning. E. So they cannot create as many numbers as we can. F. The main reason for 11 digits is that we have the largest population in the world. 第三节 信息匹配（共 5小题, 每小题1分） 下面的材料A～F分别介绍了六本不同的文学作品。请根据Juan, Melody, Catherine, Adam, Fiona的实际情况，为他们推荐适合的读物。 31 Juan, a big fan of science works, enjoys anything about space secrets. 32 Melody likes reading novels with determined and brave female characters. 33 Catherine needs to finish a learning project about black people’s lives in the past. 34 Adam plans to write a play to tell stories of different people behind society’s changes. 35 Fiona, a new teacher, wants to better understand and help teenagers with growing pains. A. Gone with the Wind by Margaret Mitchell This novel focuses on the life and challenges of Scarlett O’Hara, a strong-willed lady who experiences love and survival during the American Civil War. B. The Three-body Problem by Cixin Liu In this science fiction novel, the author explores complex themes of science, philosophy (哲学), and the unexpected results of outer-space contact. C. Uncle Tom’s Cabin by Harriet Beecher Stowe This famous novel describes the realities of slavery (奴隶制) in America through the experiences and sufferings of Uncle Tom and the people around him. D. War and Peace by Leo Tolstoy This masterpiece follows the ups and downs of several upper-class Russian families, exploring human nature and the society of the time. E. The Catcher in the Rye by J. D. Salinger This work presents how Holden Caulfield, a “bad student” teenager, thinks about his life, society, and place within it after being removed from school. F. Teahouse by Lao She Telling the life of a Beijing teahouse owner and various customers, this play offers a window into Chinese society through the changes of the 20th century. 第二部分 非选择题（25分） III. 语法填空（10分） 阅读下面短文, 在空白处填入一个适当的单词或括号内单词的正确形式。 Once upon a time, there were no 36 (river) or lakes on the earth but only the Eastern Sea in China. There lived four dragons: the Long Dragon, the Yellow Dragon, the Black Dragon and the Pearl Dragon. One day, 37 four dragons flew from the sea into the sky. They saw it was so hot and dry everywhere 38 many people were praying (祈求) for rain! Seeing that, the Long Dragon advised, “Let’s go and ask the Jade Emperor (玉皇大帝) for rain.” Hearing what they said, the Jade Emperor 39 (reply), “All right. I’ll send some rain down tomorrow.” However, over one week passed, and not a drop of rain came down. The four dragons felt sorry and 40 (worry). They knew the Jade Emperor never cared much 41 the people. To save the poor people, they decided to spray (喷洒) seawater towards the sky. 42 (quick) the water poured down like rain and saved the people and their crops. The Jade Emperor soon knew ___43___ the four dragons did. He was very angry and ordered Mountain God 44 (pull) four mountains down upon the four dragons. Even so, the four dragons still wanted to help the poor people. They then turned 45 (them) into four rivers. Since then, China’s four great rivers have run across the country like four huge dragons. 第四节、书面表达（15分） 发明改变了世界，改变了人们的生活。因为各种各样的发明，我们的生活变得越来越舒适与便捷。假设你是李华，最近你和同学在校园里做了一项关于“我最喜爱的发明”的调查，请你写一篇英语短文，报告此次调查的结果，并谈谈你心目中最重要的发明是什么及其原因，短文需包括以下要点： Invention light fridge car the Internet Data 32% 10% 13% 45% Reasons 夜里照明 食物保鲜 随时随地出行 生活便利 Your opinion （请补充） 要求： 1. 约80词左右，开头已经给出，不计入总词数。 2. 可适当发挥，但要注意语言通顺，流畅，准确。 3. 不得透露班级、姓名等任何个人信息，否则不予评分。 There are many inventions in history and some of them have greatly changed the world. Recently, we did a survey on “What’s your favorite invention” in our school, and here is the result. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 2 / 2 学科网（北京）股份有限公司 $$