Unit 5 Section A（3a-3d）-【初中学霸创新题】2026-2027学年九年级上册英语习题课件（人教版·新教材 安徽专版）

该初中英语课件围绕Unit 5“Power of Ideas”主题展开，聚焦发明相关话题，通过智能插座、鲁班锯子等案例导入，知识点从基础单项填空（如被动语态）过渡到补全对话、完形填空及阅读理解，构建由易到难的学习支架。 其亮点在于融入地域特色题目（如安庆四中期末补全对话）培养文化意识，通过事件排序等题型提升思维品质，分“练基础”“练提升”分层设计强化学习能力。学生能在真实语境中提升语言运用能力，教师可借助多样化练习高效开展教学。

Unit 5　Power of Ideas Section A （3a—3d） 2 练基础 目 录 练提升 3 （　）1. People wrote on bamboo, silk or animal bones before paper _____. A. invent B. invented C. is invented D. was invented （　）2. The maths problem was a piece of cake for Sarah; she solved it _____. A. in seconds B. on time C. by mistake D. in person （　）3. —You will walk to the subway station？ What’s the _____ from here to the station？ —It’s just about two hundred metres. A. way B. time C. distance D. journey 练基础 Ⅰ. 单项填空 D A C 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ 4 （　）4. Nicotine（尼古丁） _____ how your heart works, which means it has bad _____ on your heart. A. effects; affects B. effects; effects C. affects; effects D. affects; affects （　）5. ［地域特色］—Anhui Museum is more popular than it used to be. Many students visit it on weekends or holidays. —_____ It has a collection of more than 300 thousand cultural relics（文物）. A. Are you sure？ B. That’s right. C. Never mind. D. Not at all. C B 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ 5 Ⅲ. 补全对话 （安庆四中期末）A: Where are you going, Tony？ B: To the library. I want to borrow some books. A: 6. _____ B: I’d like to borrow a book about inventions. You know I have to prepare for the science lesson. A: 7. _____ And we humans are really great. B: That’s true. People have made lots of inventions. D 练提升 E 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ A: 8. _____ B: Well, I’m not sure. 9. _____ A: I don’t agree. In my opinion, cars are the most useful. B: 10. _____ A: Because I can go anywhere quickly and conveniently in my car. B: Well, both are important. Anyway, I should head to the library now. See you later! F G A 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ Ⅲ. 完形填空 　　In our daily lives, we often leave appliances（电器） on even when they’re not in use. This small habit can 11 a lot of energy. But now, there’s a cool invention that can help—the smart plug（插座）! 　　The smart plug is a small object that you can use to 12 your wall outlets（插座） to any appliance, like a TV or a printer. 13 to make life easier, it allows you to control the power with an app on your phone. For example, if you forget to 14 your bedroom light before leaving home, you can just use the app to solve this problem. 　　The best thing about the smart plug is that it can 15 whether an appliance is 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ working or not. And then it can control its power properly by 16 . When you’re not using your appliance but it’s still plugged in, the smart plug can cut off the power supply so that no 17 will be wasted. 　　In fact, studies show that a family can save up to 10% on the 18 of electricity each month by using smart plugs. This not only helps you save money but also reduces the amount of electricity that needs to be 19 , which is great for the environment. 　　In general, using smart plugs is an easy and 20 way to save energy, which is a small step towards a greener future. 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ （　）11. A. create 　B. waste C. reduce D. get （　）12. A. connect 　B. return C. consider D. compare （　）13. A. Discovered 　B. Borrowed C. Played D. Invented （　）14. A. turn on 　B. put out C. turn off D. look for （　）15. A. tell 　B. answer C. wish D. guess （　）16. A. itself 　B. himself C. yourself D. themselves （　）17. A. time 　B. energy C. effort D. water （　）18. A. price 　B. ticket C. length D. cost （　）19. A. produced 　B. saved C. found D. needed （　）20. A. traditional 　B. popular C. effective D. harmful B A D C A A B D A C 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ they didn’t finish on time. They had only axes（斧子） to cut the trees for the palace, so the efficiency（效率） of their work was very low. 　　One day Lu Ban rushed up the hill to see how things were going. Suddenly the sharp teeth of a leaf cut his hand. Then a bright idea came into his head. Soon he made a tool with teeth along the side of a long iron bar（长条）. With this tool, they worked much faster, and completed the work on time. 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ 　　Do you know what a saw is, or have you ever used one？Do you know who invented it？One famous story connects it to Lu Ban. He was born in the state of Lu in ancient China more than 2,500 years ago. This area is present-day Qufu, located in Jining, Shandong. 　　Lu Ban was the greatest carpenter（木匠） in his time. Once, the king ordered him and his team to build a palace in a very short time. They would be punished if Ⅳ. 阅读理解 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ 　　This story explains where the saw’s design might have come from. According to recent archaeological（考古的） discoveries, saws were already in use hundreds of years before Lu Ban’s time and people believe he made the saw much better. Lu Ban is still remembered as a great inventor in Chinese history because he invented many useful tools for carpenters and interesting toys for children. It’s said that the Wooden Bird he invented could stay in the air for three days. That’s why he is seen as the God of Carpentry. 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ （　）21. ［图文结合］In which picture can you see a saw？ （　）22. ［事件排序］Which is the right order of the events in the invention of the saw？ a. Lu Ban invented the saw. b. Lu Ban had a bright idea. c. Lu Ban was ordered to build a palace. d. Lu Ban’s team finished the work on time. e. Lu Ban’s hand was cut. A. a-e-b-c-d B. e-b-a-c-d C. a-b-c-d-e D. c-e-b-a-d A D 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ （　）23. Which of the following did Lu Ban’s Wooden Bird look like？ A. A bike. B. A kite. C. A ship. D. A car. （　）24. ［后续推衍］What may the text talk about next？ A. How modern saws are different. B. More inventions made by Lu Ban. C. The life of carpenters in ancient China. D. How to become a good carpenter today. B B 目 录 导 航 Ⅱ Ⅲ Ⅰ Ⅳ Ⅴ 16 $