Unit 5 Power of Ideas 单元基础巩固练2026-2027学年人教版英语九年级上册

Unit 5 Power of Ideas 单元基础巩固练2026-2027学年九年级上册人教版 一、听力测试（略） 二、阅读 第一节　阅读选择 A Paper cutting is a traditional Chinese folk art with a history of over 1,500 years. People use red paper and scissors to cut beautiful patterns of flowers, animals and Chinese characters. These cuttings are usually put on windows during the Spring Festival to bring good luck. The art is popular across China, but different regions have their own styles. For example, paper cuttings in northern China are usually bold（大胆的）and simple, while those in the south are delicate（精致的）and detailed. Today, paper cutting is not only decoration. It is also used in modern design, such as on clothes, book covers and even buildings. In 2009, Chinese paper cutting was added to the UNESCO Intangible Cultural Heritage List. （　）1. How long has paper cutting existed in China? A. About 500 years.　　B. Over 1,500 years.　　C. Less than 1,000 years. （　）2. Where are paper cuttings usually put during the Spring Festival? A. On the floor.　　B. On windows.　　C. On the roof. （　）3. What is the difference between northern and southern paper cuttings? A. Northern ones are simpler, southern ones are more detailed. B. Northern ones use blue paper, southern ones use red. C. Northern ones are used for festivals only. B The Post-it note（便利贴）is one of the most useful office inventions. But it was born almost by accident. In 1968, a scientist named Spencer Silver was trying to create a very strong glue at 3M company. Instead, he made a weak, reusable glue that didn't stick firmly. For years, nobody knew what to do with it. Then in 1974, another 3M employee, Art Fry, was singing in a choir（唱诗班）. His bookmarks kept falling out of his hymnbook（赞美诗集）. He remembered Silver's special glue and used it to stick small pieces of paper to the pages. The paper stayed but could be removed easily without damaging the book. That was the birth of the Post-it note! At first, 3M wasn't sure the product would sell. They gave free samples to offices. People loved it immediately. Today, billions of Post-it notes are sold worldwide every year. （　）4. What kind of glue did Spencer Silver invent accidentally? A. A very strong permanent glue. B. A weak reusable glue that doesn't stick firmly. C. A glue that can only be used on paper. （　）5. Why did Art Fry need the glue? A. To fix his broken glasses. B. To keep his bookmarks from falling out. C. To repair his hymnbook. （　）6. How did 3M first test the market for Post-it notes? A. By selling them at a high price. B. By giving free samples to offices. C. By advertising on TV heavily. C The bicycle is a simple machine that changed the world. The first bicycle-like machine appeared in 1817, invented by Karl von Drais in Germany. It had no pedals（踏板）— riders pushed their feet on the ground. In the 1860s, pedals were added to the front wheel, creating the "boneshaker". Then in the 1870s came the "penny-farthing" with a huge front wheel. It was fast but dangerous to ride. The modern "safety bicycle" appeared around 1885, with two equal-sized wheels and a chain（链条）driving the back wheel. This design made bicycles safer, cheaper and accessible to everyone, including women. Bicycles gave people freedom of movement and helped push forward social changes. Today, with environmental concerns rising, bicycles are more popular than ever as a green way to travel. （　）7. What was special about the first bicycle-like machine? A. It had no pedals. B. It had an engine. C. It had two equal wheels. （　）8. Which bicycle was considered dangerous because of its huge front wheel? A. The Draisine.　　B. The penny-farthing.　　C. The safety bicycle. （　）9. Why was the safety bicycle important for society? A. It was only for rich people. B. It was safer, cheaper and available to everyone, helping social change. C. It replaced all cars immediately. （　）10. Why are bicycles becoming popular again today? A. Because they are fashionable. B. Because of environmental concerns — they are a green way to travel. C. Because cars are banned everywhere. 第二节　阅读还原（六选五） The umbrella is such a common thing that we hardly notice it. Yet its history is long and surprising. __11__ The ancient Chinese used oiled paper or silk stretched over a frame to keep off rain and sun as early as 2,000 years ago. From China, the idea spread to other parts of Asia. The Romans also had umbrellas, but mostly for shade（遮阳）from the sun, not rain. __12__ In Europe during the Middle Ages, umbrellas were rare and mainly used by women or nobles. __13__ In the 1700s, an Englishman named Jonas Hanway carried an umbrella in the rain in London. People laughed at him at first, but soon others followed. __14__ They became cheaper to make with new materials like steel frames and waterproof（防水的）cloth. By the 20th century, umbrellas were everywhere. __15__ Some are tiny enough to fit in a pocket; others are big enough for two people. Whatever the style, the humble umbrella remains one of humanity's most useful everyday tools. A. Umbrellas slowly became popular among men in the 18th century. B. The earliest umbrellas came from ancient China. C. Rain protection wasn't their main purpose at that time. D. Modern umbrellas come in all shapes and sizes. E. The umbrella was once considered a symbol of power. F. With the Industrial Revolution, mass production began. 三、语言运用 第一节　完形填空 Have you ever eaten potato chips? They were invented by __16__. In 1853, a customer（顾客）in a restaurant in New York kept __17__ that his fried potatoes were too thick and soft. The cook, George Crum, was a bit __18__. To play a trick on the customer, he sliced the potatoes as __19__ as possible and fried them until they were very crispy（酥脆的）. He thought the customer would __20__ them. Surprisingly, the customer __21__ them and asked for more! Other guests also showed __22__ in the thin crispy chips. __23__, the "potato chip" became popular across the country. What started as a（n）__24__ turned into a worldwide snack loved by millions. This shows that sometimes small __25__ can lead to big inventions. （　）16. A. mistake　B. accident　C. design （　）17. A. complaining　B. explaining　C. promising （　）18. A. excited　B. angry　C. tired （　）19. A. thick　B. thin　C. large （　）20. A. refuse　B. enjoy　C. forget （　）21. A. hated　B. loved　C. ignored （　）22. A. interest　B. fear　C. doubt （　）23. A. Gradually　B. Suddenly　C. Sadly （　）24. A. accident　B. plan　C. joke （　）25. A. mistakes　B. ideas　C. tools 第二节　短文填空 阅读下面短文，在空白处填入一个适当的词，或括号内单词的正确形式。 The zipper（拉链）is a small but __26__（use）invention we use every day. It was __27__（invent）by Whitcomb Judson in 1893. At first, it was called the "clasp locker". However, it was not very __28__（rely）and few people used it. Later, Gideon Sundback improved __29__（it）design in 1913, making the zipper much __30__（strong）and easier to use. Zippers began to be used in boots, jackets and bags. Today, they appear in countless __31__（product）around the world. Without zippers, life __32__（be）much less convenient. The story tells us that good ideas need time and improvement. It also reminds us __33__（value）small things in life. In fact, many daily items we take for granted were once great __34__（invent）. Next time you zip up your coat, remember to think about __35__ amazing history behind this tiny tool. 四、写作（阅读表达 阅读下面短文，根据短文内容回答问题。 The Story of the Microwave Oven（微波炉） The microwave oven is now found in almost every kitchen, but it was discovered by accident. In 1945, an American engineer named Percy Spencer was working with radar（雷达）equipment. One day, he noticed that a chocolate bar in his pocket had melted（融化）while he was standing near the radar machine. Curious, he tried placing some popcorn（爆米花）near the machine — and it popped! He realised that the microwaves from the radar could heat food quickly. Spencer then built the first microwave cooking device. The early models were huge and expensive, about the size of a fridge. By the 1970s, technology improved and prices dropped, so ordinary families could afford them. Today, microwave ovens are fast, safe and widely used. Percy Spencer never expected that a melted chocolate bar would lead to one of the most useful kitchen inventions of the 20th century. 36. Who discovered the microwave cooking effect? ___________________________________________________________ 37. What melted in Percy Spencer's pocket? ___________________________________________________________ 38. What food did he test besides the chocolate bar? ___________________________________________________________ 39. Why couldn't ordinary families buy microwave ovens at first? ___________________________________________________________ 40. What does the story teach us about inventions?（用自己的话回答，合理即可） ___________________________________________________________ 【参考答案】 二、阅读 第一节　1. B　2. B　3. A　4. B　5. B　6. B　7. A　8. B　9. B　10. B 第二节（六选五）　11. B　12. C　13. A　14. F　15. D（多余项 E） 三、语言运用 第一节　完形填空 16. B　17. A　18. B　19. B　20. A　21. B　22. A　23. A　24. C　25. A 第二节　短文填空 26. useful　27. invented　28. reliable　29. its　30. stronger 31. products　32. would be　33. to value　34. inventions　35. the 四、阅读表达 36. Percy Spencer (an American engineer). 37. A chocolate bar. 38. Popcorn. 39. Because the early models were huge and expensive. 40. Great inventions may come from small accidents / careful observation in daily life; we should stay curious.（言之有理即可） 1 学科网（北京）股份有限公司 $