三、阅读还原
根据短文内容，选出最佳选项。选项中有一项为多余选项。
“Are we alone? What's out there?” People have always looked up at the stars and wondered about space. Before the mid-20th century, most people felt travelling into space was only a dream. 1. After many tests, they succeeded in making rockets that could overcome Earth's gravity(地球引力). Ever since then, humans' exploration of space has started.
2. China's space programme started late in the last century, but it has made great progress in a short time. China became the third country in the world to independently send humans into space in 2003. 3. It is large enough to allow astronauts to carry out many important scientific studies. More recently, Shenzhou-21 manned spaceship was successfully sent into space on 31st October, 2025.
Besides the exploration near Earth, many countries are doing some research on other planets. For example, on 23rd July, 2020, China sent Tianwen-1 to explore the surface of Mars. Planets like Mars might become suitable for humans to live on one day. 4.
There is still a long way for humans to go to explore space. If you are interested in space walking, go for your dream. 5. Maybe you will become one of the engineers who work on China's space exploration.

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

【分析】
本题为英语阅读还原题，需结合上下文的语义逻辑、段落主旨及指代关系匹配选项。解题思路：先通读全文把握“太空探索”的主题，再逐个分析空格前后内容，通过语义衔接、逻辑关系确定对应选项，最后排除多余选项完成作答。
【解析】
1. 第1空前文提到“此前人们认为太空旅行只是梦想”，后文说明“科学家成功造出克服地球引力的火箭”，D选项“然而，科学家下定决心让它实现”符合转折逻辑，衔接前后内容，故1选D。
2. 第2空后文围绕中国太空项目的发展展开，A选项“中国从未停止探索太空的脚步”作为段落主题句，引出下文中国的太空成就，故2选A。
3. 第3空后文提到“空间站足够大，能让宇航员开展研究”，E选项“2022年，中国完全建成自己的天宫空间站”对应空间站的内容，衔接自然，故3选E。
4. 第4空前文提到“火星等行星未来可能适合人类居住”，F选项“这说明探索其他行星能帮助找到人类未来的家园”承接前文观点，故4选F。
5. 第5空前文鼓励追逐太空梦，C选项“这当然需要大量努力和坚强意志”呼应追梦所需的条件，符合语境，故5选C。
【答案】
1.D 2.A 3.E 4.F 5.C
【知识点】
英语阅读还原、语篇逻辑推理
【点评】
本题考查学生对英语语篇上下文逻辑关系的理解能力，需结合段落主旨、前后句的语义衔接解题，难度适中。
【难度系数】
0.5