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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. 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.
多亏了国际空间站，我们对低重力对人体的影响有了一些了解，但美国宇航局的科学家们还想了解更多。为此，他们一直在研究其他物种如何应对低重力，尤其是老鼠。结果既有趣又搞笑。
The scientists first send 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 noticed in the video, the mice definitely seem uncomfortableat 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 using the lack of gravity to their advantage as they push themselves around the cage.
科学家们首先把一些老鼠放在一个特别设计的笼子里送到国际空间站。在这个笼子里，他们可以通过视频从地球上远程研究老鼠的行为。正如你在视频中注意到的，在实验开始的时候老鼠看起来肯定很不舒服。它们笨拙地四处走动，在笼子的小范围内漂移，尽力想知道哪个方向是向上的，但都没有成功。然而，没过多久老鼠们就开始喜欢上了。它们能很好地适应新环境，甚至利用失重的优势在笼子里推来推去。
That's when things really get wild. The 11th dayof 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.
事情到了真正疯狂的时候。实验的第11天表明，老鼠不仅能应对重力变化，而且似乎还乐在其中。有几只老鼠被观察到绕着笼子的墙壁跑。
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 their routines intact, including cleaning themselves and eating when hungry.
科学家们想知道这些老鼠是否会继续做他们在地球上观察到的同样的活动。研究表明，老鼠的日常活动基本保持没变，包括清洁自己以及饥饿时进食。
Questions 22 to 25 are based on the passage you have just heard.
请根据刚才所听文章回答22-25题。
Q22: What do Nasa scientists want to learn about?
问题22：美国宇航局的科学家想了解什么？
Q23: What does the passage say about the mice at the beginning o fthe experiment?
问题23：文章开头说了有关老鼠的什么？
Q24: What was observed about the miceon the 11th dayof the experiment?
问题24：在实验的第11天，老鼠被观察到了什么？
Q25: What did the scientists find about the mice from the experiment?
问题25：科学家们从实验中对老鼠有什么发现？
