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

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.