Unit 5 Power of Ideas Section B (1a-1f) 同步分层练 2026-2027学年人教版九年级英语上册

**基本信息** 聚焦“思想的力量”主题，融合中国农历生肖、张衡地动仪等传统文化与智能镜子等科技素材，分层设计巩固词汇语法基础并提升阅读表达能力。 **题型特征** |题型|题量/分值|知识覆盖|命题特色| |----|-----------|----------|----------| |单词拼写|5题|核心词汇（birth, rapid等）|结合传统文化（生肖）与生活场景| |适当形式填空|5题|词性转换（suit→suitable等）|注重语法应用与语境理解| |阅读理解|4题|细节查找与主旨归纳|引入古代科技发明（地动仪），渗透文化意识| |任务型阅读|3题|信息提取与简洁表达|关联现代科技（智能镜子），培养思维品质|

Unit 5 Power of Ideas Section B (1a-1f) 同步分层练 练基础 Ⅰ. 根据首字母及汉语提示，完成下列单词的拼写 1. [传统文化] In the Chinese lunar calendar, each year is named after one of the 12 animals based on the year of a person's b______ (出生). 2. The school organized a science w______ (作坊) where students could build simple robots by hand. 3. For c______ (某些) reasons, the invention exhibition has been postponed until next month. 4. Travelling by subway is c______ (便宜的), while taking a private car is e______ (昂贵的). 5. We should keep up with the r______ (迅速的) development of AI technology, or we will fall behind. Ⅱ. 用括号内所给单词的适当形式填空 6. This quiet park is a ______ (suit) place for reading and relaxing. 7. There are some huge ______ (stone) on the path. Be careful not to trip over them. 8. After years of planning, their dream of building a smart home finally became a ______ (real). 9. Two police ______ (office) were directing traffic at the busy crossroads. 10. The beautiful clay pot is my own ______ (create). I made it in the art class. Ⅲ. 单项填空 ( ) 11. — All the team members worked overtime to finish the project. — Yes. Although they were exhausted, ______ of them complained. A. neither B. nobody C. none D. no one ( ) 12. [环境保护] Wetlands are often called the "kidneys of the earth" because they provide an ______ home for many rare birds and fish. A. ideal B. digital C. recent D. formal ( ) 13. — Look at the clouds! They are changing constantly. — Wow, they are in different ______, such as dragons, castles, and mountains. A. sizes B. shapes C. colours D. styles ( ) 14. [学科融合] We know that water can exist in three states: solid, ______, and gas. A. ice B. steam C. liquid D. rain ( ) 15. You don't need both a computer and a tablet for the task. ______ the computer ______ the tablet is enough. A. Both; and B. Either; or C. Not; but D. Neither; nor Ⅳ. 根据汉语提示完成句子 16. ______ (后来), scientists discovered that this material could conduct electricity. 17. (教材改编题) The invention of the telegraph ______ (引起) the fast transmission of information across continents. 18. Poor eating habits may ______ (导致) serious health problems in the future. 19. If you don't ______ (加速), you won't catch the early bus to the airport. 20. She ______ (不但) won the first prize in the competition, ______ (而且) got a chance to study abroad. 提升练 Ⅴ. 阅读理解 Zhang Heng was one of the greatest inventors in ancient China. He lived during the Eastern Han Dynasty. Besides being an inventor, he was also an astronomer, poet, and mathematician. His most famous invention is the seismograph (地动仪). At that time, earthquakes happened frequently, and people were very scared because they didn't know why they occurred. Zhang Heng decided to find a way to detect earthquakes. The seismograph he invented looked like a large bronze jar. On the outside of the jar, there were eight dragon heads facing eight different directions. Below each dragon head was a toad with its mouth open. Inside the jar, there was a pendulum (摆锤). When an earthquake happened, the pendulum would swing and hit one of the dragon heads. The dragon head would open its mouth, and a bronze ball would drop into the mouth of the toad below. This would tell people the direction of the earthquake. Although it was invented nearly 2,000 years ago, Zhang Heng's seismograph was very advanced for its time. It shows that the power of ideas can help people understand and deal with natural disasters. ( ) 21. [数字推算] When was Zhang Heng's seismograph probably invented? A. About 200 years ago. B. About 500 years ago. C. About 1,000 years ago. D. About 2,000 years ago. ( ) 22. What was the function of the pendulum inside the seismograph? A. To make the jar look beautiful. B. To hit the dragon head when an earthquake happened. C. To count the number of earthquakes. D. To predict the weather. ( ) 23. How did the seismograph tell people the direction of an earthquake? A. By the sound of the dragon roaring. B. By the falling of the bronze ball from a specific dragon head. C. By the shaking of the toad statues. D. By the movement of the pendulum. ( ) 24. What is the main idea of the text? A. The history of ancient Chinese astronomy. B. How Zhang Heng became a famous poet. C. The introduction of Zhang Heng's seismograph and its significance. D. Why earthquakes happened in ancient China. Ⅵ. 任务型阅读 阅读下面短文，并用英语回答问题（请注意每小题的词数要求）。 Have you ever heard of the "Magic Mirror"? It is not a fairy tale object, but a real invention by a Chinese company. The Magic Mirror is actually a smart mirror. Unlike a normal mirror, it has a screen behind the glass. When you stand in front of it, it can show you different information, such as the weather, your schedule, and even your health data. The idea came from a young engineer named Lin Wei. He noticed that people spend a lot of time looking at their phones in the morning. He wanted to create a device that could provide information without holding a phone. The mirror uses facial recognition technology to identify the user. It can also connect to other smart devices in your home. For example, you can control the lights or the air conditioner just by talking to the mirror. Lin Wei hopes that his invention can make people's lives more convenient. He believes that small ideas can change the world. 25. What is the "Magic Mirror"? (不超过10个词) 26. How does the mirror identify the user? (不超过5个词) 27. Why did Lin Wei invent the Magic Mirror? (不超过15个词) 参考答案 Ⅰ. 1. birth 2. workshop 3. certain 4. cheap; expensive 5. rapid Ⅱ. 6. suitable 7. stones 8. reality 9. officers 10. creation Ⅲ. 11-15: C A B C B Ⅳ. 16. Later 17. caused 18. lead to 19. speed up 20. not only; but also Ⅴ. 21-24: D B B C Ⅵ. 25. It is a smart mirror with a screen behind the glass. 26. By using facial recognition technology. 27. To provide information without holding a phone / Make people's lives more convenient. 学科网（北京）股份有限公司 $