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四、阅读下面材料,从方框中所给的 A—E 五个选项中选出正确选项(其中一项是多余选项),将其序号填入第1—4小题,并回答第5小题
Living and working in space is an amazing experience, but it is also full of challenges. The International Space Station (ISS), a high-tech laboratory orbiting 400 kilometres above earth, is home to astronauts for about six months at a time.
In the microgravity environment, everything floats, so daily life is very different from that on earth. 1.
Astronauts must exercise for about two hours every day. 2.
Besides exercise, they spend much time doing scientific experiments, maintaining the space station, and communicating with earth. 3.
4.
A. This is to prevent muscle and bone loss caused by weightlessness.
B. Astronauts sleep in small cabins, with their sleeping bags fixed to the wall to stay in place.
C. Although space life is tough, it is worth going into space.
D. The International Space Station is a good place for astronauts to work.
E. These tasks are very important for space exploration.
5. What do you think of astronauts' life in space? Why?（不超过20词）
Living and working in space is an amazing experience, but it is also full of challenges. The International Space Station (ISS), a high-tech laboratory orbiting 400 kilometres above earth, is home to astronauts for about six months at a time.
In the microgravity environment, everything floats, so daily life is very different from that on earth. 1.
B
They use wet wipes and waterless shampoo to keep clean, as water cannot flow freely.Astronauts must exercise for about two hours every day. 2.
A
They use special treadmills and exercise bikes on the ISS.Besides exercise, they spend much time doing scientific experiments, maintaining the space station, and communicating with earth. 3.
E
They help astronauts learn more about the universe and prepare for future deep-space exploration.4.
C
Astronauts' hard work brings us more knowledge about space and makes our dream of exploring the universe come true step by step.A. This is to prevent muscle and bone loss caused by weightlessness.
B. Astronauts sleep in small cabins, with their sleeping bags fixed to the wall to stay in place.
C. Although space life is tough, it is worth going into space.
D. The International Space Station is a good place for astronauts to work.
E. These tasks are very important for space exploration.
5. What do you think of astronauts' life in space? Why?（不超过20词）
It is really tough. Because astronauts have to live in a special microgravity environment and face many challenges.
答案
1. B 2. A 3. E 4. C
5. It is really tough. Because astronauts have to live in a special microgravity environment and face many challenges.（答案不唯一，合理即可）
5. It is really tough. Because astronauts have to live in a special microgravity environment and face many challenges.（答案不唯一，合理即可）
解析
【分析】
本题为阅读选句填空加开放问答类题目，解题思路如下：1. 选句填空：先通读全文，把握每段主旨，再分析每个空格前后的语境（话题、逻辑关系），逐一匹配A-E选项，注意有一个多余项；2. 第5题是主观题，需结合文章提到的太空生活特点，表达合理观点并说明理由，注意词数限制。
【解析】
1. 第1空：前文提到太空日常生活与地球不同，后文介绍清洁的特殊方式，B选项介绍宇航员睡觉的特殊安排，属于太空日常的例子，符合语境，故选B；
2. 第2空：前文说明宇航员每天锻炼两小时，后文讲锻炼的特殊工具，A选项解释锻炼的目的（防止失重导致的肌肉和骨骼流失），衔接上下文，故选A；
3. 第3空：前文列举宇航员的任务（实验、维护空间站、与地球交流），后文讲这些任务的意义，E选项指出这些任务对太空探索的重要性，承上启下，故选E；
4. 第4空：前文讲太空生活的挑战，后文讲宇航员工作的价值，C选项总结太空生活虽艰难但值得，符合段落逻辑，故选C；
5. 第5题：结合文章中太空生活的挑战，表达观点并说明理由，合理即可，如：It is really tough. Because astronauts have to live in a special microgravity environment and face many challenges.
【答案】
1.B 2.A 3.E 4.C；5.It is really tough. Because astronauts have to live in a special microgravity environment and face many challenges.
【知识点】
阅读理解选句填空；开放型书面表达
【点评】
本题围绕太空生活话题，考查学生的阅读理解逻辑推理能力和语言表达能力，选句填空需关注语境衔接，开放题需紧扣文章内容作答，难度适中。
【难度系数】
0.5
本题为阅读选句填空加开放问答类题目，解题思路如下：1. 选句填空：先通读全文，把握每段主旨，再分析每个空格前后的语境（话题、逻辑关系），逐一匹配A-E选项，注意有一个多余项；2. 第5题是主观题，需结合文章提到的太空生活特点，表达合理观点并说明理由，注意词数限制。
【解析】
1. 第1空：前文提到太空日常生活与地球不同，后文介绍清洁的特殊方式，B选项介绍宇航员睡觉的特殊安排，属于太空日常的例子，符合语境，故选B；
2. 第2空：前文说明宇航员每天锻炼两小时，后文讲锻炼的特殊工具，A选项解释锻炼的目的（防止失重导致的肌肉和骨骼流失），衔接上下文，故选A；
3. 第3空：前文列举宇航员的任务（实验、维护空间站、与地球交流），后文讲这些任务的意义，E选项指出这些任务对太空探索的重要性，承上启下，故选E；
4. 第4空：前文讲太空生活的挑战，后文讲宇航员工作的价值，C选项总结太空生活虽艰难但值得，符合段落逻辑，故选C；
5. 第5题：结合文章中太空生活的挑战，表达观点并说明理由，合理即可，如：It is really tough. Because astronauts have to live in a special microgravity environment and face many challenges.
【答案】
1.B 2.A 3.E 4.C；5.It is really tough. Because astronauts have to live in a special microgravity environment and face many challenges.
【知识点】
阅读理解选句填空；开放型书面表达
【点评】
本题围绕太空生活话题，考查学生的阅读理解逻辑推理能力和语言表达能力，选句填空需关注语境衔接，开放题需紧扣文章内容作答，难度适中。
【难度系数】
0.5
