D
①Chinese scientists are trying ways to build houses on the moon using bricks(砖) made from fake lunar soil(土). These bricks were sent to China's space station on the Tianzhou-8 cargo spaceship. The team working on this project plans to shape the bricks using mortise and tenon joints，a method from ancient buildings，to build an egg-shaped house on the moon，according to a CCTV report.
②The moon has always been an important goal for space exploration(探索). Many countries have made long-term plans for human activities on the moon. China hopes to send astronauts there by 2030 and build a research station by 2035. A lab in Wuhan，China，has created a sandbox to show how a future moon base might be built.
③Ding Lieyun，the leader of the team making the lunar soil bricks，said building on the moon is very hard. The moon has difficult environments，including no water，low gravity(重力)，big temperature changes，and frequent small earthquakes(地震). These make the building process very difficult.
④After many tests，the team chose a two-layer dome design called the "lunar pot". This design is light，uses fewer materials，and works well for keeping warm and staying strong. Inside，the house will have two levels: one for working and one for resting.
⑤The bricks will be made using a method from ancient Chinese building styles. Robots will put the bricks together，and 3D printing will make the structure stronger. These ideas are based on data from China's Chang'e-5 moon mission.
⑥The bricks made from fake moon soil are now being tested in space to see if they can go through the difficult environment. The first brick will return to Earth by the end of 2025，bringing us closer to building homes on the moon.
()37. Which of the followings is the right shape of the house on the moon?

()38. What does the underlined word "These" refer to in Paragraph 3?
A. The lunar soil bricks.
B. Difficult environments.
C. Big temperature changes.
D. Small earthquakes.
()39. What can we infer from the passage?
A. Building houses on the moon is a difficult task for Chinese scientists.
B. The lunar bricks are already used to build a complete house on the moon.
C. China is making some improvements in building houses on the moon.
D. Many countries show great interest in building houses on Mars.
()40. Which of the following best describes the structure of the passage?

【语篇解读】本文是一篇说明文，主要介绍了中国科学家正在尝试用月球土壤制造的砖块在月球上建造房屋。
37~40 DBCD

【分析】
本题为英语阅读理解题，需根据原文内容逐一分析各题：
1. 37题：定位原文第一段，明确提到要建“egg-shaped house”，据此判断形状对应选项D；
2. 38题：词义猜测题，第三段中“These”指代前文提到的月球的困难环境，需定位前一句内容，排除具体环境因素和无关选项，确定答案；
3. 39题：推理判断题，需逐一排除错误选项：B选项“已建成完整房子”与原文“正在测试”不符；D选项“火星”与原文“月球”不符；A选项表述不准确，原文未特指“中国科学家”的难度；C选项符合原文中国在月球建房上的探索进展，故正确；
4. 40题：文章结构题，梳理各段落内容，明确段落间的逻辑关系，对应选项D。
【解析】
37题：根据第一段“build an egg-shaped house on the moon”可知，月球上的房子是蛋形，对应选项D，故选D；
38题：第三段前一句指出月球有多种困难环境，后一句“These make the building process very difficult”中，These指代前文的“difficult environments”，故选B；
39题：A选项原文未特指“中国科学家”的难度，表述不准确；B选项“已建成完整房子”与原文“正在测试砖块”矛盾；D选项“火星”错误，原文为月球；C选项中国在月球建房上有诸多探索（如用古代榫卯、3D打印、测试砖块），符合原文，故选C；
40题：梳理文章结构：第一段引入中国科学家尝试建月球房子，第二段讲月球探索计划，第三段讲建造困难，第四段讲设计，第五段讲建造方法，第六段讲测试，对应选项D，故选D；
【答案】
37.D 38.B 39.C 40.D
【知识点】
英语阅读理解、细节理解、词义猜测、推理判断
【点评】
本文是关于中国月球探索的说明文，考查学生对原文细节、指代关系、逻辑结构的理解，需准确定位原文信息，排除干扰项，难度适中。
【难度系数】
0.5