《2025年课时提优计划作业本八年级英语上册译林版连云港专版》

(D)
Fish babies in space? In a space study on zebrafish, Chinese scientists have set a new record. They successfully got four zebrafish to live and grow in a closed water world.
The zebrafish went to China’s space station on the Shenzhou-18 spaceship on April 25th, 2024. Since then, they have been living in a closed fish tank with some plants. The fish grew up and had babies in 43 days.
In their special closed water world, the plants made air for the fish and the fish’s waste(排泄物) gave the plants food. The scientists gave the fish food through a special needle(针管).
Such a closed-loop ecosystem(封闭生态系统) is important for future study in space. It means that plants and animals can live in space more simply and easily.
The scientists also found that the zebrafish acted differently from on earth. For example, they often swam on their backs. The low gravity(重力) in space is a big reason. On earth, gravity pulls objects toward its core, helping animals orient(确定方位) themselves. Gravity also makes their bodies work harder and become stronger.
Humans and zebrafish share 70% of the same genes(基因). So the new finding will help scientists better understand human health.
(A)37. What do we know about the space study on zebrafish?
A. It took place in a closed water world.
B. The zebrafish gave birth to four babies at last.
C. It took zebrafish less than one month to grow up.
D. Scientists from different countries did it together.
(B)38. Which picture should be in the circle to show the ecosystem in the fish tank?

(C)39. What was the result of the low gravity in space?
A. Human bodies got stronger.
B. Animals could easily find their way.
C. The zebrafish swam on their back.
D. The zebrafish swam in different directions.
(C)40. What is the last paragraph mainly about?
A. The plan of the space study.
B. The course of the space study.
C. The meaning of the space study.
D. The finding of the space study.

答案： 37.A 38.B 39.C 40.C