人教版九年级全册 Unit 6 When was it invented? 单元练习题 （含答案）

2025 年人教版英语九年级下册
Unit6 单元练习题
一、首字母提示填空（10 分）
The light bulb was a great i________ that has changed the world.
Tea, one of the most popular drinks in the world, was first d________ by Shen Nong.
The zipper is widely used in our daily lives, but few people know who the i________ is.
The abacus was invented in the sixth c________ by Chinese people.
Potato chips were invented by m________. A cook made them by mistake.
Basketball was invented by a C________ doctor named James Naismith.
The Olympics are h________ every four years.
The popularity of basketball has r________ around the world.
The s________ of the basketball is round, and it can bounce easily.
The tea trade helped to s________ the popularity of tea culture.
二、用括号内所给单词的适当形式填空（10 分）
The telephone ________ (invent) by Alexander Graham Bell in 1876.
The ________ (nation) kite festival is held in Weifang every year.
The ________ (popular) of the Internet has made our lives more convenient.
Tea is now ________ (wide) drunk all over the world.
The story of how tea was invented is very ________ (interest).
Many young people dream of becoming famous ________ (profession) basketball players.
The ________ (Canada) singer Celine Dion is famous for her beautiful voice.
We should avoid ________ (make) the same mistake again.
The book ________ (write) by a famous writer last year.
The ________ (compete) in the singing contest were all very talented.
三、完形填空（20 分）
The history of the computer is a fascinating story of human innovation. The first computers were huge and 1. They were mainly used for scientific research and military purposes.
As technology advanced, computers became smaller and more 2. The invention of the microprocessor was a 3 point in computer history. It made it possible for computers to be used in homes and offices.
Steve Jobs and Steve Wozniak were two pioneers in the personal computer 4. They founded Apple Computer and introduced the Apple II, which was one of the first successful personal computers. It had a user - friendly interface and could be used for a variety of tasks, 5 word processing and gaming.
Later, Microsoft, led by Bill Gates, developed the Windows operating system. This made personal computers even more accessible to the general public. The 6 of the Internet in the 1990s further revolutionized the way we use computers. It allowed people to 7 information and communicate with others around the world.
Today, computers come in all shapes and sizes, from smartphones that fit in our pockets to powerful supercomputers that can solve complex scientific problems. They have become an 8 part of our lives, affecting almost every aspect of society, from education and business to entertainment.
However, with the widespread use of computers, there are also some 9. Issues like privacy, cyber - security, and the impact on employment need to be addressed. But overall, the computer has 10 the world in ways we could never have imagined.
A. expensive B. cheap C. small D. light
A. powerful B. weak C. simple D. difficult
A. starting B. turning C. ending D. moving
A. field B. factory C. store D. market
A. as B. like C. for D. with
A. discovery B. development C. invention D. improvement
A. share B. keep C. hide D. change
A. unnecessary B. important C. unimportant D. useless
A. advantages B. benefits C. problems D. solutions
A. created B. changed C. made D. built
四、阅读理解（20 分）
A
The Invention of the Bicycle
The bicycle is a widely - used means of transportation around the world. Its invention can be traced back to the early 19th century.
Karl Drais, a German baron, is often credited with inventing the first bicycle - like vehicle in 1817. His invention, called the “Draisine,” had two wheels and was propelled by the rider pushing their feet against the ground.
In 1839, Kirkpatrick Macmillan, a Scottish blacksmith, added pedals to the design, which was a significant improvement. This allowed the rider to use their legs to turn the wheels, making it more efficient.
The modern - day bicycle, with its chain - driven mechanism, was developed in the 1870s. This innovation made the bicycle faster and easier to ride.
Bicycles have many advantages. They are environmentally friendly, as they don't produce any pollution. They are also a great form of exercise. In addition, they are relatively inexpensive compared to cars.
Today, bicycles are not only used for transportation but also for sports and recreation. Mountain bikes, road bikes, and folding bikes are just some of the different types available.
Who invented the first bicycle - like vehicle
A. Kirkpatrick Macmillan.
B. Karl Drais.
C. Bill Gates.
D. Steve Jobs.
What did Kirkpatrick Macmillan add to the bicycle design
A. Wheels.
B. Pedals.
C. A chain - driven mechanism.
D. A seat.
When was the modern - day chain - driven bicycle developed
A. In 1817.
B. In 1839.
C. In the 1870s.
D. In the 1990s.
Which of the following is an advantage of bicycles
A. They produce a lot of pollution.
B. They are very expensive.
C. They are environmentally friendly.
D. They are difficult to ride.
What are bicycles used for today
A. Only for transportation.
B. Only for sports.
C. Only for recreation.
D. For transportation, sports, and recreation.
B
The Impact of Mobile Phones
Mobile phones have become an essential part of our lives. Since their invention, they have changed the way we communicate, work, and entertain ourselves.
In the early days, mobile phones were large and expensive, and their main function was to make calls. But as technology advanced, they became smaller, more affordable, and more powerful.
Today's smartphones can do much more than just make calls. They can send text messages, access the Internet, take high - quality photos and videos, play games, and run various applications.
The use of mobile phones has had a significant impact on communication. People can now stay in touch with others around the world instantly. Social media platforms, which are often accessed through mobile phones, have made it easier to connect with friends, family, and even strangers.
In the workplace, mobile phones have increased productivity. Workers can check emails, attend virtual meetings, and access important documents on the go.
However, the over - use of mobile phones also has some negative effects. It can lead to problems like eye strain, neck pain, and sleep disorders. Moreover, excessive use of mobile phones can sometimes cause people to become isolated from the real world.
6. What was the main function of mobile phones in the early days
A. To send text messages.
B. To access the Internet.
C. To make calls.
D. To take photos.
7. What can smartphones do today
A. Only make calls.
B. Send text messages, access the Internet, and more.
C. Only play games.
D. Only run applications.
8. How has the use of mobile phones affected communication
A. It has made communication more difficult.
B. It has made people stay in touch instantly.
C. It has reduced the number of friends.
D. It has made people more isolated.
9. How have mobile phones affected the workplace
A. They have decreased productivity.
B. They have increased productivity.
C. They have had no effect.
D. They have caused more problems.
10. What are the negative effects of over - using mobile phones
A. They make people more energetic.
B. They cause eye strain, neck pain, and sleep disorders.
C. They improve people's relationships.
D. They help people focus better.
五、阅读还原（10 分）
The development of technology has brought many changes to our lives. 1 For example, the invention of the airplane has made long - distance travel much faster and more convenient. Before airplanes, traveling across the ocean could take weeks or even months.
2 The Internet has connected people from all over the world. We can share information, ideas, and cultures with others in an instant. Social media platforms have made it possible to communicate with friends and family who are far away.
However, technology also has its drawbacks. 3 For instance, the over - use of electronic devices can lead to health problems such as obesity, eye problems, and back pain.
4 The development of artificial intelligence may lead to job losses in some industries. As machines become more intelligent, they can replace humans in certain tasks.
5 We should use technology wisely to enjoy its benefits while minimizing its negative impacts.
A. Another aspect of technology is the development of the Internet.
B. Technology has both positive and negative effects.
C. One of the most significant impacts is in the field of transportation.
D. In addition, technology can also have an impact on employment.
E. The widespread use of technology has some negative consequences on our health.
________ 2. ________ 3. ________ 4. ________ 5. ________
六、语法填空（15 分）
The electric car is an important 1 (invent) in the history of transportation. It 2 (develop) over time to become a more environmentally friendly alternative to traditional gasoline - powered cars.
The first electric cars 3 (appear) in the 19th century. But at that time, they were not as popular as gasoline - powered cars because of their limited range and high cost.
With the 4 (improve) of battery technology, electric cars have become more practical. Today, many major car manufacturers 5 (produce) electric cars. These cars are not only more energy - efficient but also produce less pollution.
In some countries, the government 6 (provide) incentives for people to buy electric cars. For example, they may offer tax breaks or subsidies. This has helped to increase the 7 (popular) of electric cars.
However, there are still some challenges 8 (face) by the electric car industry. One of the main problems is the lack of charging stations. Without enough charging stations, it can be difficult for electric car owners 9 (travel) long distances.
Despite these challenges, the future of electric cars looks promising. As technology continues to develop, electric cars are likely to become even 10 (good) and more widely used.
________ 2. ________ 3. ________ 4. ________ 5. ________
________ 7. ________ 8. ________ 9. ________ 10. ________
七、书面表达（15 分）
Should students be allowed to use mobile phones at school
最近，你班就“学生是否应该在学校使用手机”这一话题展开了讨论。请根据以下讨论结果，写一篇短文，陈述讨论情况，并发表自己的观点。
赞成（40%）
1. 便于与家人和朋友联系。
2.可以使用手机中的学习软件，辅助学习。
反对（60%）
1. 容易分心，影响学习。
2. 过度使用手机会影响身体健康。
你的观点 | …… |
要求：
词数：不少于 100 词；
短文须包括所有要点，可适当发挥，以使行文连贯；
文中不得出现真实的人名、校名等相关信息。
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参考答案
一、首字母提示填空
invention 2. discovered 3. inventor 4. century 5. mistake
Canadian 7. held 8. risen 9. shape 10. spread
二、用括号内所给单词的适当形式填空
was invented 2. international 3. popularity 4. widely 5. interesting
professional 7. Canadian 8. making 9. was written petitors
三、完形填空
A 2. A 3. B 4. A 5. B 6. B 7. A 8. B 9. C 10. B
四、阅读理解
A篇: 1. B 2. B 3. C 4. C 5. D
B篇: 6. C 7. B 8. B 9. B 10. B
五、阅读还原
C 2. A 3. E 4. D 5. B
六、语法填空
invention 2. has developed 3. appeared 4. improvement 5. are producing
provides 7. popularity 8. faced 9. to travel 10. better
七、书面表达（参考范文）
Recently, our class had a discussion on whether students should be allowed to use mobile phones at school. 40% of the students are in favor of it. They think mobile phones make it convenient for them to keep in touch with their families and friends. Also, there are many learning apps on mobile phones, which can help them with their studies.
However, 60% of the students are against it. They believe that using mobile phones at school can easily distract students from their studies. Moreover, over - using mobile phones can have a negative impact on students' health, such as causing eye problems and back pain.
In my opinion, students should be allowed to use mobile phones at school, but with some restrictions. For example, they can only use them during breaks and for study - related purposes. This way, students can enjoy the benefits of mobile phones while avoiding their negative effects.