題目列表(包括答案和解析)
根據短文內容，完成文后的選擇題
Scientists are trying to turn deserts into land that can be used again. They want to bring water to the deserts, so that people can live and grow food. They are learning a lot about deserts. 1 . Scientists may not be able to change the deserts in time.
Why is more and more land becoming desert？ Scientists think that people make deserts. 2 .
Some places on the earth-don't get very much rain. But they still don't become deserts. 3 . Small green plants and grass are very important to dry places. 4 . Plants stop the wind blowing the soil away. When a little bit of rain falls, the plants retain (保留；保持)the water. 5 .
[ ]
A．They don't take care of the environment properly.
B．Plants prevent the hot sun from making the earth even drier.
C．This is because plants grow there.
D．Without plants, a desert is formed much more easily.
E．But more and more of the land is becoming desert.
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.
根據短文內容判斷正(T)誤(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.
A. land is becoming desert little by little
B. the greatest desert in the world
C. something about the hot desert wind
D. nothing about the deserts
閱讀理解
Scientists are trying to make the deserts into land again. They want to bring water to the deserts, so people can live and grow plants. They are learning a lot about the deserts. But more and more of the earth is becoming deserts all the time. Scientists may not be able to change the deserts in time.
Why is more and more land becoming deserts? 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（土）away. When a little bit of rain falls, plants hold the water. Without plants, the land can become a desert more easily.
判斷下列句子是否符合短文內容，符合的用“T”，不符合的用“F”表示。
1. Deserts get very little rain.
( )
2. Land is becoming deserts little by little because scientists know little about the deserts.
( )
3. Plants can hold water and protect dry land from becoming deserts.
( )
4. All places without much rain will become deserts.
( )
5. Scientists are trying to change deserts into good land.
( )
閱讀理解
Scientists are trying to make the deserts
（沙漠）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 drive. Plants don't let the wind blow the dirt
（泥土）away. When a little of（一點兒）rain falls, the plants hold the water. Without plants, the land can become a desert much more easily.( )(1)Plants can keep dry land from becoming desert
( )(2)It is good to get rid of
（消除）the grass in the desert( )(3)All places without much rain will become deserts.
( )(4)It's important for us to plant trees and protect
（保護）forests.( )(5)Scientists may not be able to change the desert in time.
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