Thanks to the International Space Station, we know quite a bit about the effects of low gravity on the human body, but NASA scientists want to learn more. 22 To that end, they have been studying how other species deal with low gravity, specifically focusing on mice. The results are both interesting and humorous. The scientists first sent some mice in a specially designed cage to the International Space Station. The cage allowed them to study the behavior of the mice remotely from Earth via video. As you'll notice in the video, 23 the mice definitely seem uncomfortable at the beginning of the experiment. They move around clumsily, drifting within the small confines of the cage, and do their best to figure out which way is up, but without success.
However, it's not long before the mice begin to catch on. They adapt remarkably well to their new environment and even use the lack of gravity to their advantage as they push themselves around the cage.
That's when things really get wild. 24 The 11th day of the experiment shows the mice are not just dealing with the gravity change, but actually seem to be enjoying it. Several of the mice are observed running around the cage walls.
25 The scientists wanted to see whether the mice would continue doing the same kinds of activities they were observed doing on Earth. The study showed that the mice kept much of the routines intact, including cleaning themselves and eating when hungry.
多亏了国际空间站，我们了解了很多关于低重力对人体的影响，但是美国宇航局的科学家们想要了解更多。 22 为此，他们一直在研究其他物种是如何应对低重力环境的，特别是在老鼠身上。结果既有趣，又充满幽默。科学家们首先把一些老鼠装进一个特别设计的笼子里并送到国际空间站。这个笼子使得他们能够通过视频从地球上远程研究老鼠的行为。正如你将在视频中注意到的， 23 在实验开始的时候，老鼠看起来显然很不舒服。它们在笼子狭小的空间里笨拙地移动，悬浮在空中，并且竭力想知道哪条路是向上的，却无济于事。
然而，老鼠很快就明白过来。它们很好地适应了新环境，甚至充分利用失重的优势推动自己在笼子里打转。
那才是事情真正变得疯狂的时候。 24 实验的第11天表明，老鼠们不仅在应对重力变化，而且实际上似乎很享受。科学家们观察到有几只老鼠沿着笼子的四壁跑来跑去。
25 科学家们想看看这些老鼠是否会继续做人们在地球上观察到它们所做的那些活动。研究表明，老鼠的日常活动基本保持不变，包括清洁自己和饥饿时进食。
Questions 22 to 25 are based on the passage you have just heard.
- 单选题
- 分值:14.2
What do NASA scientists want to learn about?
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How mice imitate human behavior in space.
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How low gravity affects the human body.
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How mice interact in a new environment.
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How animals deal with lack of gravity.
22.美国宇航局的科学家们想了解什么?
A)老鼠如何在太空中模仿人类的行为。
B)低重力如何对人体产生影响。
C)老鼠如何在新环境中互动。
D)动物如何应对失重。
- 单选题
- 分值:14.2
What does the passage say about the mice at the beginning of the experiment?
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They were not used to the low-gravity environment.
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They found it difficult to figure out where they were.
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They found the space in the cage too small to stay in.
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They were not sensitive to the changed environment.
23.关于实验开始时的老鼠，这篇文章说了什么?
A)它们不习惯低重力的环境。
B)它们发现很难弄清楚自己在哪里。
C)它们发现笼子里的空间太小，以至于无法待在里面。
D)它们对变化后的环境不敏感。
- 单选题
- 分值:14.2
What was observed about the mice on the 11th day of the experiment?
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They tried everything possible to escape from the cage.
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They continued to behave as they did in the beginning.
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They already felt at home in the new environment.
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They had found a lot more activities to engage in.
24.在实验的第11天，科学家们观察到了老鼠的什么情况?
A)它们尽一切可能尝试从笼子里逃跑。
B)它们继续像一开始那样行事。
C)它们在新环境中已经感到很自在了。
D)它们发现有更多的活动可以参与。
- 单选题
- 分值:14.2
What did the scientists find about the mice from the experiment?
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They repeated their activities every day.
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They behaved as if they were on Earth.
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They began to eat less after some time.
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They changed their routines in space.
25.科学家们从实验中发现了老鼠的什么情况?
A)它们每天重复自己的活动。
B)它们的行为就像在地球上时一样。
C)一段时间后，它们开始吃得少了。
D)它们改变了在太空中的日常活动。
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