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

Unit 5 Power of Ideas 基础巩固练2026-2027学年九年级上册人教版 一、听力测试（略） 二、完形填空 阅读下面短文，从每小题所给的 A、B、C、D 四个选项中，选出一个能填入相应空白处的最佳选项。 Have you ever thought about who invented the potato chips? Most of us enjoy eating them, but few of us know the story behind them. Potato chips were __16__ by accident. In 1853, a Native American cook named George Crum worked at a restaurant in New York. One day, a customer complained that the fried potatoes were __17__ thick and not salty enough. Crum was a little __18__ and decided to play a trick on the customer. He cut the potatoes into very thin pieces, fried them until they were very __19__, and added lots of salt. He expected the customer to __20__ them. However, to his surprise, the customer loved them! Other people also showed great __21__ in these thin, crispy potatoes. Soon they became very popular. __22__, Crum's potato chips became one of the most popular snacks in the world. This shows that sometimes a small __23__ or even an unhappy moment can bring a great invention. Of course, not every invention comes from a(n) __24__. Many useful things are the result of years of hard __25__ by creative people. （ ）16. A. invented B. discovered C. bought D. sold （ ）17. A. too B. so C. very D. quite （ ）18. A. excited B. angry C. tired D. happy （ ）19. A. soft B. big C. crispy D. sweet （ ）20. A. refuse B. accept C. praise D. forget （ ）21. A. interest B. trouble C. pride D. courage （ ) 22. A. Suddenly B. Gradually C. Luckily D. Usually （ ）23. A. mistake B. success C. plan D. rule （ ）24. A. accident B. idea C. effort D. dream （ ）25. A. life B. study C. work D. play 三、短文填空 阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。 Many of us use the zipper every day, but few know who invented it. The zipper is a great __26.__(invent) that we often take for granted. It __27.__(create) by Whitcomb Judson in 1893. At first, it __28.__(call) the "clasp locker". However, it wasn't widely used at that time because it was not very __29.__(rely). Later, a Swedish engineer named Gideon Sundback improved __30.__ design in 1913, making it much stronger and __31.__(easy) to use. The new version worked well, and soon zippers began to appear on clothes, bags and many other __32.__(product). Today, zippers are everywhere. Without them, our daily life __33.__(be) much less convenient. From coats to suitcases, zippers play __34.__ important part in modern life. It is amazing __35.__(think) how such a small thing can change the world so greatly. 四、阅读理解 A The Chinese abacus (算盘) is one of the greatest inventions in ancient China. It is a calculating (计算) tool made of a wooden frame with beads (算珠) sliding on rods. For centuries, it helped people do math quickly and accurately. The exact origin of the abacus is not clear, but it is believed to have appeared over 2,000 years ago. During the Ming and Qing dynasties, the abacus became widely used in shops, banks and homes. Businessmen relied on it heavily for counting money and keeping accounts. Using an abacus requires special skills. A good operator can add, subtract, multiply and divide very fast—sometimes even faster than using a calculator! The beads are moved according to certain rules, and with practice, people can calculate almost without thinking. Although computers and calculators are common today, the abacus is still taught in some schools. It helps children develop their concentration and math ability. In 2013, Chinese abacus calculation was added to the UNESCO Intangible Cultural Heritage List. This shows its lasting value to human culture. （ ）36. What is the Chinese abacus mainly used for? A. Playing games. B. Doing calculations. C. Decorating houses. D. Teaching languages. （ ）37. When did the abacus become widely used according to the passage? A. In the Han Dynasty. B. During the Ming and Qing dynasties. C. In modern times. D. Over 2,000 years ago exactly. （ ）38. Which of the following is TRUE about the abacus? A. It was invented by a single famous person. B. It can only do addition. C. It helps children improve concentration and math ability. D. It has completely disappeared from schools. B A new smart pen has been developed for students who have trouble taking notes. The pen, called "NotePen", can record what the teacher says while the student writes. It has a tiny microphone and a built-in storage chip. When a student writes with NotePen, it saves both the handwriting and the audio at the same time. Later, by tapping on any word they wrote, the student can __hear__ the part of the lesson related to that note. This is especially helpful for students who cannot write fast enough or who want to review lessons more easily. The idea came from a college student, Lisa Chen, who often struggled to catch every word in class. "I wished I could record the lecture while focusing on key points instead of writing everything down," she said. After two years of research and testing, her team finally made it. NotePen is not on the market yet, but the team plans to sell it at an affordable price for students. They believe it will help millions of learners around the world. Some teachers worry students may rely too much on it and stop listening carefully, but Lisa says the pen is meant to help, not replace, active learning. （ ）39. What can NotePen do? A. Translate languages automatically. B. Record audio while the student writes. C. Replace teachers in class. D. Draw pictures perfectly. （ ）40. Where did the idea of NotePen come from? A. A teacher's suggestion. B. Lisa Chen's own learning difficulty. C. A company's order. D. A science competition. （ ）41. What do some teachers worry about? A. The pen is too expensive. B. Students may depend on it too much. C. The pen cannot record clearly. D. It will replace textbooks completely. （ ）42. What is the best title for the passage? A. The History of Pens B. A Smart Pen Helping Students Take Notes C. How to Take Good Notes D. The Future of Education 五、补全对话 （Two friends are talking about great inventions in daily life.） A: Hey, Lucy! What do you think is the most useful invention in your daily life? B: Hmm, I think the mobile phone is the most useful. A: 43. ______________________________ B: Because it helps me communicate with my family and search for information anywhere. A: That's true. 44. ______________________________ B: Well, I also think the washing machine is great. It saves so much time for housework. A: Good point. Do you know who invented the first practical washing machine? B: 45. ______________________________ I'm not sure about that. A: It was invented by Jacob Fisher in 1908, I read it in a magazine. B: Interesting! 46. ______________________________ A: I guess inventions make our life more comfortable and efficient. B: I agree. 47. ______________________________ A: Maybe the flying car! That would change the way we travel completely. 【参考答案】 二、完形填空 16. A（invented 被发明） 17. A（too thick 太厚） 18. B（angry 生气，因顾客抱怨） 19. C（crispy 酥脆的） 20. A（refuse 拒绝，本想捉弄顾客） 21. A（show interest in 对……感兴趣） 22. B（Gradually 逐渐地） 23. A（mistake 错误/失误带来发明） 24. A（accident 偶然事件，与前文 by accident 呼应） 25. C（hard work 努力工作） 三、短文填空 26. invention 27. was created（被动语态，过去式） 28. was called（被动语态） 29. reliable（形容词，可靠的） 30. its（指代 zipper 的设计） 31. easier（与 stronger 并列比较级） 32. products（复数） 33. would be（虚拟语气，没有拉链生活会更不方便） 34. an（play an important part） 35. to think（It is amazing to do） 四、阅读理解 36. B 37. B 38. C 39. B 40. B 41. B 42. B 五、补全对话（参考） 43. Why do you think so? / Why is it the most useful? 44. What other inventions do you think are great? / Any other useful inventions? 45. Sorry, I don't know. / No idea. 46. What do you think of inventions in general? / What's your opinion on inventions? 47. What invention do you hope will appear in the future? 1 学科网（北京）股份有限公司 $