《2025年基础知识同步训练10分钟八年级英语上册沪教版深圳专版》

C
Thirty years ago, China started to build its own navigation satellite system (卫星
导航系统), Beidou. It took its name from the Big Dipper stars, which are the guiding
light for people around the world.
In 1994, China began making the Beidou Navigation Satellite System (BDS), so
it wouldn’t have to use navigation systems from other countries. It’s a lot safer this
way.
In 2020, after over 20 years of hard work, Beidou completed its global network.
This achievement placed China among the group of countries and regions with their
own global navigation network. The US, Russia and the European Union are the
other three.
Beidou does not just show where you are. It’s also the first to let you send texts
where there’s no phone signal or internet. For example, you can use it to send
messages to others in a deep mountain. The Beidou system has played an important
role in disaster prevention and response (防灾救灾). The BDS even helps farmers in
China by providing precise (精确的) information for planting, making farming
smarter.
The BDS is more than a system. It shows China’s power in science and
technology. Now, over 120 countries and regions are using it. Wherever you are,
Beidou’s there to help you find your way.
(D) 21. According to the passage, where did the name Beidong come from?
A. The United Nations. B. The Chinese folk tales.
C. The Chinese government. D. The Big Dipper stars.
(B) 22. Why is it important to make BDS?
A. It’s faster. B. It’s safer. C. It’s easier. D. It’s cheaper.
(A) 23. Which country / region does NOT have its own global navigation network?
A. Japan. B. Russia.
C. The United States. D. the European Union.
(B) 24. How does BDS help farmers in China?
A. By showing people’s locations.
B. By providing precise information for planting.
C. By sending messages to others in a deep mountain.
D. By playing an important role in disaster prevention and response.
(C) 25. What can we learn about BDS from the passage?
A. It took thirty five years to build the system.
B. Now there is only one country using the system.
C. It shows China’s power in science and technology.
D. China completed its global network in the year of 2024.

答案： 21. D
22. B
23. A
24. B
25. C