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[originaltext] (19) One thing about the moon many people don’ t know is tha
[originaltext] (19) One thing about the moon many people don’ t know is tha
游客
2024-01-24
20
管理
问题
(19) One thing about the moon many people don’ t know is that it has a lot of garbage on its surface, leftover from human space exploration. But how much garbage exactly have humans left on the moon? It’ s hard to be accurate, but the trash likely weighs more than 181,000 kilograms on earth. Much of it was left by American astronauts, who landed on the lunar surface between 1969 and 1972 during NASA’ s Apollo Missions. The other rubbish comes from missions that did not have human crews. These missions were conducted by various space exploring agencies, including those from the US, Russia, Japan, India and Europe. Many of the older pieces are equipment sent to learn about the moon. The equipment stayed there after its mission ended.
The moon is also home to lunar orbiters that nabbed the moon before they crashed into its surface, adding to the garbage heap. (20) The objects left by the Apollo astronauts included the equipment that was no longer needed. Bringing back unneeded equipment would have used up precious resources such as fuel. But as the saying goes, "one person’ s trash is another’ s treasure" , (21) researchers can study the garbage left on the moon to see how its materials weathered the radiation and vacuum of space overtime. Moreover, some of the objects on the moon are still being used, including a laser range reflector left by the Apollo 11 crew.
Questions 19 to 21 are based on the passage you have just heard.
19. What does the passage say maybe unknown to many people?
20. Why has a lot of equipment been left on the moon?
21. What can researchers do with the garbage on the moon?
选项
A、Space exploration has serious consequences.
B、India has many space exploration programs.
C、There is quite a lot to learn about the moon.
D、A lot of garbage has been left on the moon.
答案
D
解析
题干问的是短文中所说许多人不知道的事是什么。短文开头提到,关于月球,有一件事很多人都不知道,那就是月球表面有很多垃圾,是人类在太空探索中遗留下来的,故答案为D(很多垃圾被留在了月球上)。A项(太空探索有严重的后果)、B项(印度有许多太空探索项目)和C项(关于月球有许多东西要了解)短文中均未提及,故排除。
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