Question

Scientists are trying to make the deserts into good land again. they want to bring water to the deserts, so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming desert all the time. Scientists may not be able to change the desert in time.

Why is more and more land becoming desert? Scientists think That people make deserts. People are doing bad things to 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 are growing there. Small green plants and grass are very important to dry places. Plants don’t let the hot sun make the earth even drier. Plants don't let the wind blow the dirt(泥土)away. When a little bit of rain falls，the plants hold the water. Without plants, the land can become a desert much more easily.

根据短文内容判断正(T)误(F)

 1. Scientists are trying to change the deserts into good land.　　

 2. Land is becoming desert little by little.

 3. Land can't become desert faster than scientists can change it back into good land.

 4. Small green plants need a lot of water.　　　　　　　　　　　　 

 5. All places without much rain will become deserts.　　　　　　  

 

Answer 1

答案：T;T;F;F;T
提示：

1 Scientists are trying to make the deserts into good land again. 可知本题正确。 2 But more and more of the earth is becoming desert all the time可知本题正确。 3 Scientists may not be able to change the desert in time. 可知本题错误。 4 文章未涉及，故本题错误。 5 见文章第二段。