C
KEY→P39
范畴:人与社会 主题:科学技术 体裁:说明文 难度:★★★ 建议用时:6分钟 评价:/9
阅读下面短文,根据所读内容,在文章后的空格里填入最恰当的内容。注意:第1~8题每个空格只填1个单词,第9题字数不限。
What is BeiDou? BeiDou is a navigation(导航) satellite(卫星) system. It is developed by China. China is the 3rd country in the world to have its own navigation satellite system. With BeiDou, China no longer has to depend on foreign systems. This is very important for national safety.
The research and development of BeiDou began in 1994. However, the first two BeiDou satellites were not sent into space until 2000. Since then, China has launched(发射) dozens of(数十个) BeiDou satellites. These satellites have formed a global network. Now, China is further improving the system. The BDS-3 system was fully completed in June, 2020, with the successful launch of the last satellite.
The BeiDou Navigation Satellite System will be more powerful than any other navigation satellite system in the world. According to a designer of BeiDou, the system can notice the sway(晃动) of a building in strong winds.
BeiDou has brought much benefit to our lives. In many cities, thousands of buses have been using BeiDou. When we are waiting for a bus, we can know when it is about to come. Many smart phones have also been using BeiDou. Many people say, "Let me turn on my mobile phone." In fact, their phones are using BeiDou.
英语嗨吧

本文主要讲了中国的导航卫星系统——北斗。
1. Introduction 2. develops 3. safety 4. began/started 5. in 6. successfully 7. most 8. able
9. BeiDou has made our life more convenient. Many people can use BeiDou in their smart phones to give them a hand if necessary.（言之有理即可）

【分析】
这是一篇关于北斗导航系统的说明文阅读填空题，解题时需紧扣原文内容，结合句子结构、语境及固定搭配填写合适词汇，第1-8题需填1个单词，第9题是开放性表达，需结合划线句含义，用自己的话解释，确保符合语境且贴合主旨。
【解析】
1. 第一空对应文章对北斗系统的开篇介绍，故填Introduction；
2. 原文提到北斗由中国开发，主语China是第三人称单数，谓语用develop的第三人称单数形式develops；
3. 原文明确指出北斗对国家安全很重要，故填safety；
4. 原文说明北斗的研发始于1994年，故填began/started；
5. 年份前需用介词in，故填in；
6. 原文提到最后一颗卫星成功发射，修饰动词launched用副词successfully；
7. 句中“of all”表范围，需用形容词最高级，powerful的最高级是most powerful，故填most；
8. 结合结构“be able to”（能够），原文说明系统能察觉建筑晃动，故填able；
9. 划线句意为人们打开手机实际是在使用北斗，可解释为：Many people turn on their mobile phones because they are using the BeiDou Navigation Satellite System in their phones, which brings great convenience to their daily life.
【答案】
1. Introduction 2. develops 3. safety 4. began/started 5. in 6. successfully 7. most 8. able 9. Many people turn on their mobile phones because they are using the BeiDou Navigation Satellite System in their phones, which brings great convenience to their daily life.（答案不唯一，言之有理即可）
【知识点】
英语阅读填空、说明文理解、词汇运用
【点评】
本题以北斗导航系统为主题，考查学生对说明文细节的把握和语言运用能力，题型设置兼顾基础填空与开放表达，难度适中，需结合原文信息准确作答。
【难度系数】
0.6