《2025年同步测控优化设计八年级英语上册人教版》

五、完形填空
In most cities,trees are all around us. They make our cities ____1____. People plant them in parks and ____2____ the streets.
But trees are more than that. They are living things. They can get hurt(受伤)just like people,____3____ they need someone to care for them. Arborists(树木栽培家)are ____4____ for trees. They can care for trees after they get hurt by lightning or fall down when wind blows. They ____5____ the broken branches(树枝)from the trees to stop them from dying(死亡). They keep the city's trees green and healthy.
Not like other doctors,arborists can't ask trees about their ____6____. They must know a lot about how to care for trees. Most arborists always study many ____7____ tree problems.
Arborists often work in high places. Their ____8____ can be dangerous,but it's very important. Cities need healthy trees. They ____9____ the air cool and clean. If a city has no trees,it may be a hot,dirty place. Arborists ____10____ our city a nicer place.
1. A. large
B. small
C. heavy
D. beautifulD
2. A. for
B. into
C. along
D. underC
3. A. so
B. or
C. if
D. butA
4. A. guides
B. doctors
C. friends
D. teachersB
5. A. stop
B. kill
C. get
D. saveD
6. A. ideas
B. stories
C. dangers
D. problemsD
7. A. same
B. good
C. different
D. boredC
8. A. time
B. job
C. number
D. answerB
9. A. keep
B. sell
C. eat
D. playA
10. A. go
B. buy
C. make
D. cookC

答案： 1. D 2. C 3. A 4. B 5. D 6. D 7. C 8. B 9. A 10. C

六、阅读理解
Fish babies in space? In a space study on zebrafish(斑马鱼),Chinese scientists 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 ⅩⅧ spaceship on April 25,and then they lived 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 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 than 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 everything to the earth's centre,and animals can find their way easily. 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.
1. What do we know about the space study?
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.
2. Which picture should be in the circle to show the ecosystem in the fish tank?

3. 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 backs.
D. The zebrafish swam in different directions.
4. What does the underlined word “waste” in paragraph 3 mean?
A. 饵料
B. 食物
C. 排泄物
D. 残渣
5. 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： 1. A 2. B 3. C 4. C 5. C