2020年12月大学英语四级听力真题第1套-Passage3

题目：
22.
A) How mice imitate human behavior a space.
B) How low gravity affects the human body.
C) How mice interact in a new environment.
D) How animals deal with lack of gravity.

23.
A) They were not used to the low-gravity environment.
B) They found it difficult to figure out where they were.
C) They found the space in the cage too small to stay in.
D) They were not sensitive to the changed environment.

24.
A) They tried everything possible to escape from the cage.
B) They continued to behave as they did in the beginning.
C) They already felt at home in the new environment.
D) They had found a lot more activities to engage in.

25.
A) They repeated their activities every day.
B) They behaved as if they were on Earth.
C) They begin to eat less after some time.
D) They changed their routines in space.

原文：
Passage 3
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.
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 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 using the lack of gravity to their advantage as they push themselves around the cage.
That's when things really get wild. 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.
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.
Questions 22 to 25 are based on the passage you have just heard.
Question 22: What do Nasa scientists want to learn about?
Question 23: What does the passage say about the mice at the beginning of the experiment?
Question 24: What was observed about the mice on the 11th day of the experiment?
Question 25: What did the scientists find about the mice from the experiment?

答案：
22. D
23. A
24. C
25. B