二、根据材料内容,从下面五个选项中选出能填入文中空缺处的最佳选项,使文章意思通顺、内容完整。
Competition is good for businesses. In the world of navigation (导航) systems, however, competition is also a must. After all, it is not wise for a country to depend on foreign systems for navigation.
1. It’s called Beidou. China is the third country in the world to own an independent global satellite navigation system. Before China developed its own, only the United States and Russia had their own systems (GPS and GLONASS). Beidou improves China’s national safety. 2. It also shows the world that China has made great technological progress.
The Beidou project began in 1994. However, the first two Beidou navigation satellites were not sent into space until 2000. 3. Later, to make the system work around the world, China sent more new satellites. In 2020, the whole Beidou network was completed. The completed Beidou system is very good. 4. For military use, it can find positions within 10 centimetres with supporting ground equipment.
The Beidou system offers services to ordinary users too. In China, a large number of buses use the system now. 5.
So far, around 60 Beidou navigation satellites have been sent into space. And up to now, the Beidou system has served users in over 200 countries all over the world.
A. It is as powerful as foreign navigation systems.
B. China has already had its own navigation system.
C. With it, our country no longer depends on foreign systems.
D. People who are waiting for a bus can easily find out when it will arrive.
E. Since then, China has sent many Beidou satellites into space to cover more areas.

1. B
2. C
3. E
4. A
5. D

【分析】
本题为英语语篇补全题，解题思路是先通读全文把握整体主旨，再针对每个空缺处，结合前后文的语境、逻辑关系（如指代、承接、举例等），匹配语义连贯的选项。具体思考：1空前后围绕“中国需有自己的导航系统”展开；2空承接“北斗提升国家安全”的内容；3空衔接“2000年发射首批卫星”与“后续扩星”的时间线；4空承接“北斗系统性能好”的描述；5空对应“普通用户使用北斗”的举例场景。
【解析】
1. 第1空：前文提到中国依赖外国导航系统不明智，后文引出“它叫北斗”，说明空缺处是说中国拥有自己的导航系统，对应选项B。
2. 第2空：前文指出北斗提升中国国家安全，后文说明北斗展示中国技术进步，空缺处承接“国家安全”，表达不再依赖外国系统，对应选项C。
3. 第3空：前文提到2000年发射首批北斗卫星，后文说后续为全球覆盖发射更多卫星，空缺处衔接时间线，说明2000年后的扩星动作，对应选项E。
4. 第4空：前文强调北斗系统性能优异，后文举例军事用途的高精度，空缺处说明北斗与外国导航系统实力相当，对应选项A。
5. 第5空：前文举例普通用户使用北斗（如公交），空缺处对应公交用户的具体便利，即等公交的人可获知到达时间，对应选项D。
【答案】
1.B
2.C
3.E
4.A
5.D
【知识点】
英语阅读理解、语境推理、语篇衔接
【点评】
本题考查学生对英语语篇逻辑和语义连贯的理解能力，需结合上下文线索匹配选项，属于中等难度的语篇补全题。
【难度系数】
0.5

三、先通读短文,掌握其大意,然后从 A、B、C、D 四个选项中选出一个可以填入相应空白处的最佳答案。
Every morning, you get up, wash your face, brush your teeth, eat breakfast and get ready for your day. These daily activities are so 1 that you don't think much about them. But what if you were in space?
When astronauts are in space, they eat, sleep, wash, work and play. They do the same things as us, but they do them 2.
On Earth, we put food on plates and water in glasses. Gravity holds the food down and 3 the water inside the glasses. But in space, everything is 4. So food floats slowly in the air, and astronauts must eat and drink carefully. They use special plates 5 their food doesn't float away. They use special bags for drinks to 6 these drinks stay inside.
7 is very difficult in space. Some astronauts like sleeping while floating in the air, but most 8 sleeping in sleeping bags. They tie their 9 to the wall so that they don't move around in the air at night. The sun rises and sets so often in space that the astronauts use a 10 or music to wake them up.
Exercise is very important in space. On Earth, your 11 hold up your body, but in space, astronauts float in the air. So they do not use their legs often. This is very 12 to their legs. So they must 13 for about two hours every day. They often use an exercise bicycle to work out.
After a day's work, astronauts 14. They may listen to music, read, watch films, play games, or talk to their friends and families. But for them, perhaps the most exciting 15 to pass time is looking out of the window and watching space and Earth.
()1. A. interesting B. strange C. common D. creative
()2. A. similarly B. simply C. badly D. differently
()3. A. keeps B. drinks C. avoids D. pours
()4. A. useless B. careless C. weightless D. hopeless
()5. A. as long as B. as soon as C. even if D. so that
()6. A. wait for B. put up C. find out D. make sure
()7. A. Brushing B. Sleeping C. Sitting D. Cleaning
()8. A. finish B. suggest C. mind D. prefer
()9. A. bags B. boxes C. posters D. clothes
()10. A. ball B. clock C. balloon D. coin
()11. A. arms B. feet C. legs D. hands
()12. A. harmful B. familiar
C. polite D. close
()13. A. wave B. perform
C. imagine D. exercise
()14. A. climb B. relax
C. push D. return
()15. A. feeling B. fact
C. level D. way

1. C
2. D
3. A
4. C
5. D
6. D
7. B
8. D
9. A
10. B
11. C
12. A
13. D
14. B
15. D

【分析】
做完形填空需先通读全文把握主旨（本文介绍太空生活与地球日常的差异），再结合每个空的上下文语境、词汇含义及固定搭配逐一分析选项，排除不符合逻辑的答案，选出最佳选项。
【解析】
1. 前文提到“daily activities（日常活动）”，日常活动是普通常见的，C选项common（普通的）符合语境，故选C。
2. 前文说宇航员和我们做同样的事，but表转折，说明方式不同，D选项differently（不同地）符合，故选D。
3. 地球有重力，重力会把食物固定住，A选项keeps（保持），keep sth. down表示“使某物保持在下方”，符合重力的作用，故选A。
4. 太空无重力，一切是失重的，C选项weightless（失重的）符合，故选C。
5. 用特殊盘子的目的是防止食物飘走，so that引导目的状语从句，D选项符合，故选D。
6. 用特殊袋子装饮料是为了确保饮料留在袋中，D选项make sure（确保）符合语境，故选D。
7. 后文提到“sleeping in sleeping bags”，本段讲睡觉相关，B选项Sleeping，故选B。
8. 大多数人更喜欢睡在睡袋里，prefer doing sth.（更喜欢做某事），D选项prefer符合，故选D。
9. 前文提到sleeping bags，所以是把袋子绑在墙上，A选项bags，故选A。
10. 太空昼夜频繁，需要闹钟或音乐叫醒，B选项clock（闹钟）符合，故选B。
11. 后文提到“do not use their legs often”，地球是腿支撑身体，C选项legs，故选C。
12. 不常用腿对腿有害，be harmful to（对……有害），A选项harmful，故选A。
13. 前文说腿有害，所以每天要锻炼，D选项exercise，故选D。
14. 一天工作后，宇航员放松，B选项relax（放松），故选B。
15. 最令人兴奋的打发时间的方式是看窗外，D选项way（方式），故选D。
【答案】
1.C 2.D 3.A 4.C 5.D 6.D 7.B 8.D 9.A 10.B 11.C 12.A 13.D 14.B 15.D
【知识点】
完形填空解题、词汇辨析、上下文语境理解
【点评】
本文围绕太空生活展开，考查学生对词汇、语境及逻辑关系的理解，是一篇基础型完形填空，需结合日常知识和上下文分析。
【难度系数】
0.6