Question

【题目】阅读短文，根据短文内容选择正确答案。

Scientists are trying to make the deserts (沙漠) in to good land (土地) again. They want to bring water to the desert, so people can live and grow food. They are learning a lot about the desert. But more and more of the earth is becoming deserts. Scientists think that people make deserts. People are doing bad things for the earth.

Some places on the earth don’t get very much rain. But they still don’t become deserts. This is because some green plants re growing there. Some green plants and grass are very important to dry places. Plants don’t let the hot sin make the earth very dry. Plants don’t let the wind blow the dirt away. When a little of rain falls, the plants hold the water. Without (没有) plants, the land can become a desert much more easily.

【1】Scientists want to bring ______ to the desert. ( )

A. earthB. rainC. windD. water

【2】Because ______ do bad things, many places are becoming deserts. ( )

A. animalsB. peopleC. the sunD. the wind

【3】Which sentence is NOT true? ( )

A. Many places are becoming deserts.

B. Scientists ask people to live and grow food in the desert.

C. Scientists learn a lot about the deserts.

D. Some places don’t get very much rain.

【4】The meaning of the underlined (下划线) word “dirt” is ______.( )

A. 地球B. 沙子C. 泥土D. 石子

【5】Why are green plants and grass helpful?

A. Because they can hold the water.

B. Because they can stop the wind from blowing the dirt away.

C. Because they can keep the earth wet.

D. All the above.

Answer 1

【答案】

【1】D

【2】B

【3】B

【4】C

【5】D

【解析】

【1】略

【2】略

【3】略

【4】略

【5】略