中考真题2024年四川省资阳市阅读理解C篇-北斗卫星系统：全球导航的东方力量
This year, we celebrate 30 years since China started to build its Beidou Navigation Satellite System (BDS, 北斗卫星导航系统). It took its name from the Big Dipper stars, a group of seven bright stars in the sky.
In 1994, China began building the BDS, so it wouldn’t have to use navigation systems from other countries. It’s a lot safer this way. In 2020, the BDS was completed. This achievement made China the fourth to have its own navigation system after the US, Russia and the European Union.
The BDS does not just show where you are. It’s the first to let you send messages where there is no phone signal (信号). It has also played an important role in disaster prevention and response (防灾救灾). It even helps farmers in China by providing information for planting, which makes farming smarter.
The BDS is more than a system. It shows China’s ability in science and technology. Now
over 120 countries and areas are using it. Wherever you are, the BDS is there to help you find your way.
1.1. Where did the BDS get its name from?
A A country.
B A group of stars.
C A planet.
D An invention.
解析：选B。细节理解题。第一段明确提到 "It took its name from the Big Dipper stars, a group of seven bright stars in the sky."（北斗系统得名于北斗七星，即天空中的七颗亮星），所以B项正确；A项未提及；C项名称来源是星群，而非单一行星；D项名称源于自然现象，非人造发明。
2.2. When did China begin building the BDS?
A In 1994.
B In 2000.
C In 2020.
D In 2024.
解析：选A。细节理解题。第二段开头 "In 1994, China began building the BDS..."（1994年中国开始建设北斗系统），A项正确。B项 In 2000（2000年）文中未提及；C项In 2020（2020年）是北斗系统完成的时间（"In 2020, the BDS was completed"），非开始时间。D项In 2024（2024年）是纪念北斗建设30周年的年份。
3.3. What is paragraph 3 mainly about?
A The advantages of the BDS.
B The ways to make farming smarter.
C The suggestions on repairing the BDS.
D The methods of preventing disasters.
解析：选A。主旨大意题。第三段主要介绍了BDS的优势，包括在没有手机信号的地方发送信息、在防灾救灾中的重要作用以及帮助农民进行智能种植，所以A项正确；B项和D项都不是全面概括；C项未提及。
4.4. What does the BDS show about China?
A Its work in protecting nature.
B Its development in education.
C Its ability in science and technology.
D Its achievements in making phones.
解析：选C。推理判断题。最后一段明确点明 "It shows China’s ability in science and technology"（它展示了中国的科技能力），所以C项正确。A项文中未涉及环保内容；B项未提及教育相关；D项中北斗功能是导航和通信，与手机制造无直接关联。