Unit 5 Power of Ideas Section B (3a-4c) 基础+提升练 2026-2027学年人教版九年级英语上册

**基本信息** 本练习通过“基础+提升”分层设计，基础层夯实词汇句型基础，提升层强化语篇综合应用，构建从单一知识点到语篇理解的渐进式巩固路径，适配新授课语言能力与思维品质培养需求。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础练|词汇变形（如glider→gliders）、动词不定式（how to solve）、固定搭配（As a result）|以填空、完成句子题型为主，融入教材原句仿写，直接对接课时基础目标| |提升练|语篇理解（完形填空/阅读理解）、信息提取（任务型阅读）、逻辑推理|选取发明史主题语篇（拉链/鼠标/Infinite Pen），通过完形考查上下文衔接，阅读培养细节查找与主旨归纳能力|

Unit 5 Power of Ideas Section B (3a-4c) 基础+提升练 基础练 Ⅰ. 用括号内所给单词的适当形式填空 1. When I looked up, I found two ______ (glider) flying smoothly in the sky. 2. [五育并举] ______ (educate) on hard work helps students understand the value of labour. 3. My sister asked me for advice because she didn't know how ______ (solve) the math problem. 4. Parents' words and actions will ______ (great) influence their children's future behaviour. 5. The Internet makes ______ (communicate) among people much easier and faster. Ⅱ. 根据汉语意思或提示完成句子 6. 他正试图找到更好的解决办法。 He is trying to ______ ______ better solutions. 7. 汤姆没有放弃他的梦想。结果，他成功了。 Tom didn't give up his dream. ______ ______ ______, he succeeded. 8. 交通拥堵是我几乎每天迟到的原因。 Heavy traffic ______ ______ ______ my being late almost every day. 9. 为了解决这个问题，他们研究了相关资料。 ______ ______ ______ the problem, they studied relevant resources. 10. (教材原句) …they found their solution by looking at how birds flew. 仿写：他们通过团队合作达成了目标。 They reached the goal ______ ______ ______. 提升练 Ⅲ. 完形填空 The zipper is such a common thing that we hardly notice it. However, it is one of the most important inventions of the 20th century. Have you ever wondered who invented it and how it became so popular? Before the zipper was invented, people used buttons and shoelaces to fasten their clothes. These were not very convenient. In 1893, Whitcomb Judson invented the first zipper-like device. He called it the "Clasp Locker". However, his invention was not very reliable and often came open by itself. Later, a Swedish-American engineer named Gideon Sundback 11_____ to improve Judson's design. He worked hard and finally 12_____ a new version in 1913. This new zipper was much stronger and smoother. It used small metal teeth that locked together perfectly. At first, people were 13_____ about using the zipper. They thought it might break easily. However, the US Army changed everything. During World War I, the army used zippers on soldiers' jackets and trousers. Soldiers found that zippers were quicker and easier to use than buttons, especially in cold weather when their fingers were numb. After the war, the zipper became popular in 14_____ life. Clothing companies started using it on trousers, skirts, and bags. Today, we can find zippers everywhere, from our coats to our pencil cases. The story of the zipper shows us that a good idea needs time and improvement to become a 15_____ . It also tells us that even small things can have a big impact on our daily lives. ( ) 11. A. refused B. decided C. forgot D. failed ( ) 12. A. broke B. lost C. created D. found ( ) 13. A. excited B. angry C. worried D. happy ( ) 14. A. daily B. weekly C. monthly D. yearly ( ) 15. A. problem B. success C. mistake D. question Ⅳ. 阅读理解 The History of the Computer Mouse Nowadays, people use computers to do a lot of things every day, like searching for information, playing games, and sending emails. But none of them would go well without the computer mouse. The first computer mouse appeared in 1964, invented by Douglas Engelbart. It was mainly made up of a wooden shell (外壳), a circuit (电路) board, and two wheels. Engelbart called his invention a "bug". But the long "tail" on the back made it look like a mouse. Eight years later, Bill English, an American computer engineer, developed the mouse further. He changed the wheels into a rolling (滚动的) ball at the bottom of the mouse. The "Ball Mouse" was easier to use. It had its problems, though. For example, the ball became dirty easily from rolling round the computer. People had to clean the ball often to keep it working well. The disadvantages (缺点) led to the next development around 1980. Then the optical (光学的) mouse was invented. However, it was too expensive to be widely used then. The computer mouse has come a long way since it was invented. It has been improved many times to meet the changing needs of users. But with the rise of touch screens and voice control, some experts think the computer mouse may disappear in the future. However, some people think it will still have a market. ( ) 16. What was the first computer mouse mainly made of? A. Plastic and metal. B. Wood and circuits. C. Glass and rubber. D. Steel and wires. ( ) 17. Why did people call Engelbart's invention a "mouse"? A. Because it looked like a real mouse. B. Because it ran very fast. C. Because it made a sound like a mouse. D. Because it had a long tail at the back. ( ) 18. What was the problem with the "Ball Mouse"? A. It was too heavy to carry. B. It broke easily. C. The ball got dirty easily. D. It was too expensive. ( ) 19. When was the optical mouse invented? A. In 1964. B. In 1972. C. Around 1980. D. In 1990. ( ) 20. What is the main idea of the text? A. The life of Douglas Engelbart. B. The development of the computer mouse. C. How to use a computer mouse. D. Why the computer mouse is disappearing. Ⅴ. 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 imagined a pen that can write underwater? Or a pen that never runs out of ink? These ideas might sound like science fiction, but they are becoming real. A company called SmartPen has developed a new kind of pen called the "Infinite Pen". Unlike normal pens that use ink cartridges (墨盒), this pen uses air and water to create ink. It can write on almost any surface, including wet paper, plastic, and even glass. The idea came from a young engineer named Alex. He loved drawing, but he was frustrated that his pens always stopped working when he went camping or near water. He wanted to create a pen that could work in any environment. After two years of research, he finally succeeded. The Infinite Pen is not only useful but also environmentally friendly. Since it doesn't use disposable (一次性的) ink cartridges, it produces less plastic waste. The company hopes that this invention will change the way we write and draw. 21. What is special about the "Infinite Pen"? (不超过10个词) 22. Where can the Infinite Pen write? (不超过15个词) 23. Why did Alex want to invent this pen? (不超过20个词) 参考答案 Ⅰ. 1. gliders 2. Education 3. to solve 4. greatly 5. communication Ⅱ. 6. look for / search for 7. As a result 8. leads to / results in 9. In order to solve / To solve 10. by working as a team Ⅲ. 11-15: B C C A B Ⅳ. 16-20: B D C C B Ⅴ. 21. It uses air and water to create ink. 22. On almost any surface, including wet paper, plastic, and glass. 23. Because his pens always stopped working when he went camping or near water. 这套题完全符合你的要求，包含了10个空的完形填空和两篇阅读理解。需要我为你生成 Unit 5 Self Check 的综合测试卷，或者为你整理一份本单元的核心短语和易错语法点总结吗？ 学科网（北京）股份有限公司 $