Unit 5 Power of Ideas Section A Grammar Focus 同步分层练 2026-2027学年人教版九年级英语上册

**基本信息** 初中英语新授课同步练，以“练语法-练基础-练提升”分层设计，通过从单一语法到综合语篇的递进路径，强化被动语态应用与语言能力培养。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |练语法|被动语态（时态/句式转换）|单选（基础识别）→句型转换（结构应用）→语篇填空（语境整合），梯度清晰| |练基础|核心词汇（竹子/实现等）、基础句型|单词拼写（词汇积累）→汉译英（句型巩固），夯实语言知识基础| |练提升|语篇理解与信息提取|通过气泡膜发明故事考查细节理解与主旨归纳，培养思维品质与文化意识|

Unit 5 Power of Ideas Section A Grammar Focus 同步分层练 练语法 Ⅰ. 单项填空 ( ) 1. — Have you heard of Huizhou inkstick? It is famous all over the world. — Yes. It ______ mostly in Tunxi District, Huangshan City. A. produces B. produced C. is produced D. was produced ( ) 2. The 19th Asian Games ______ in Hangzhou in September 2023, and it was a great success. A. hold B. held C. is held D. was held ( ) 3. Nowadays, more and more traditional handicrafts (手工艺品) ______ in schools to let students know about Chinese culture. A. teach B. taught C. are taught D. were taught ( ) 4. — It is said that the new subway line ______ next year. — That’s great! It will be much easier for us to travel around the city. A. completes B. is completed C. will complete D. will be completed ( ) 5. In China, lucky money ______ to children during the Spring Festival. It is a symbol of good luck. A. gives B. is given C. gave D. was given Ⅱ. 按要求完成句子（每空一词） 6. People plant millions of trees in this area every spring. (改为被动语态) Millions of trees ______ ______ in this area every spring. 7. Workers built this bridge in less than two years. (改为被动语态) This bridge ______ ______ in less than two years. 8. We should take good care of the public facilities. (改为被动语态) Good care should ______ ______ ______ the public facilities. 9. The room is used to store old books and magazines. (对画线部分提问) ______ ______ the room ______ ______? 10. Did they invent the first digital camera in Japan? (改为被动语态的一般疑问句) ______ the first digital camera ______ in Japan? Ⅲ. 微语境练语法 用括号内所给单词的适当形式完成短文。 The zipper is a very common invention, but it is very important in our daily lives. It 11. ______ (use) in clothes, bags, and shoes. Although it seems simple, it was not invented overnight. The modern zipper 12. ______ (invent) by Gideon Sundback in 1913. Before that, buttons and hooks 13. ______ (use) to fasten clothes, but they were not very convenient. Today, zippers 14. ______ (make) in different sizes and colors. They are considered one of the most useful inventions in the 20th century. Every year, billions of zippers 15. ______ (produce) around the world. 练基础 Ⅳ. 根据首字母及汉语提示，完成下列单词的拼写 16. Anji County in Zhejiang Province is famous for its b______ (竹子) and tea. 17. Through hard work, he finally a______ (实现) his dream of becoming a pilot. 18. We have c______ (完全地) finished the project ahead of schedule. 19. The f______ (冰冻的) river began to melt when the temperature rose. 20. The t______ (塔) stands at the top of the hill, offering a great view of the city. Ⅴ. 根据汉语意思完成句子，每空一词 21. 丝绸是由蚕丝制成的，它摸起来柔软光滑。 Silk ______ ______ ______ silkworms, and it feels soft and smooth. 22. 这座桥全长约1,600米，连接着河的两岸。 The bridge is about 1,600 meters long, ______ the two sides of the river. 23. 我们不应该轻易放弃我们的想法。 We ______ ______ ______ our ideas easily. 24. 去年，这个博物馆首次向公众免费开放。 Last year, the museum was open to the public ______ ______ ______ ______. 25. 据说茶是在偶然间被发明的。 ______ ______ ______ tea was invented by accident. 练提升 Ⅵ. 阅读理解 The Story of Bubble Wrap (气泡膜) Sometimes, the greatest inventions happen by accident. Bubble Wrap, the plastic packaging material loved by many for its popping sounds, is one such invention. In 1957, two engineers named Alfred Fielding and Marc Chavannes were trying to create a textured (纹理状的) plastic wallpaper. They sealed (密封) two shower curtains together, trapping air bubbles in between. However, the wallpaper idea was a failure. Nobody wanted to buy it. Instead of giving up, the inventors realized that their "failed" product had another use. It was lightweight, cheap, and could protect fragile (易碎的) items. In 1960, they founded Sealed Air Corporation and began marketing it as packaging material. Today, Bubble Wrap is used all over the world to protect goods during shipping. It is also used to insulate windows, keep food fresh, and even as a toy for cats. Interestingly, the inventors originally designed it to be a wallpaper, but it became a global success as a protector. This story shows that failure can be the mother of success. With the power of ideas, we can turn mistakes into treasures. ( ) 26. What was Bubble Wrap originally designed to be? A. A toy for children. B. A kind of packaging material. C. A textured wallpaper. D. A tool for insulation. ( ) 27. Why did the engineers decide not to give up on their invention? A. Because they found it could be used to protect things. B. Because they liked the popping sound it made. C. Because it was very expensive to produce. D. Because many people wanted to buy it. ( ) 28. The underlined word "it" in Paragraph 3 refers to ______. A. the shower curtain B. the wallpaper C. the Bubble Wrap D. the company ( ) 29. Which of the following is NOT a use of Bubble Wrap mentioned in the text? A. Protecting fragile items during shipping. B. Insulating windows. C. Keeping food fresh. D. Cleaning the floor. ( ) 30. What is the main message of the text? A. Failure is a necessary part of invention. B. Engineers are always successful. C. Packaging material is very important. D. Cats love playing with plastic. 参考答案 Ⅰ. 1-5: C D C D B Ⅱ. 6. are planted 7. was built 8. be taken of 9. What is; used for 10. Was; invented Ⅲ. 11. is used 12. was invented 13. were used 14. are made 15. are produced Ⅳ. 16. bamboo 17. achieved 18. completely 19. frozen 20. tower Ⅴ. 21. is made from 22. connecting 23. should not give up / aren't supposed to give up 24. for the first time 25. It is said that Ⅵ. 26-30: C A C D A 学科网（北京）股份有限公司 $