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    Scientists to make the deserts into good land again. A. carry water B. grow food C. do nothing D. study a lot 【查看更多】

     

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    阅读理解。
         Scientists(科学家) 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
    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 desert . This is because some green plants are growing there . Small green plants and grass are very helpful to dry places . Plants
    don’t let the hot sun make the earth even drier . Plants don’t let the wind blow the earth away . When a
    little bit of rain falls , the plants hold the water . Without plants , the land can become a desert much more
    easily .
    1. Why can the land become a desert ?
    A. Some places don’t get very much rain
    B. Plants don’t let the hot sun make the earth even drier .
    C. People don’t keep the earth well
    D. Scientists haven’t learnt enough about the deserts .
    2. Scientists ______ to make the deserts into good land again .
    A. carry water
    B. grow food
    C. do nothing
    D. study a lot
    3. Which is not true ?
    A. The land never stops becoming deserts .
    B. Scientists ask the people to live in the deserts and grow food there .
    C. People do bad things to the earth .
    D. scientists may not be able to change the deserts .
    4. Why are green plants and grass helpful ?
    A. They can hold the water .
    B. They can stop the wind from blowing the earth away .
    C. They can keep the earth wet .
    D. All the above .
    5. Which is the best title (题目) for the passage ?
    A. The Desert Problem
    B. People Make Deserts
    C. Green Plants and Grass
    D. The Desert , the Tree and the Water

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    阅读理解

    　　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. Scientist may not be able to change the 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 helpful to dry places. Plants don't let the hot sun make the earth even drier. Plants don't let the wind blow the earth away. When a little bit of rain falls, the plants hold the water. Without plants, the land can become a desert much more easily.

    1．Why can the land become a desert?

    [　　]

    A．Some places don't get very much rain.

    B．Plants don't let the hot sun make the earth even drier.

    C．People don't keep the earth well.

    D．Scientists haven't learned enough about the deserts.

    2.Scientists ________ to make the deserts into good land again.

    [　　]

    A．carry water
    B．grow food
    C．do nothing
    D．study a lot

    3．Which is not true?

    [　　]

    A．The land never stops becoming deserts.

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

    C．People do bad things to the earth.

    D．Scientists may not be able to change the deserts.

    4．Why are green plants and grass helpful?

    [　　]

    A．They can hold the water.

    B．They can stop the wind from blowing the earth away.

    C．They can keep the earth wet.

    D．All the above.

    5．Which is the best title for the passage?

    [　　]

    A．The Desert Problem.

    B．People Make Deserts.

    C．Green Plants and Grass.

    D．The Desert, the Tree and the Water.

    查看答案和解析>>

    阅读理解。
         Scientists are trying to make the deserts(沙漠)into a 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 deserts all the time. Scientists may not be able to change the deserts in time.
    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 helpful to dry places. Plants
    don't let the hot sun make the earth even drier. Plants don't let the wind blow the earth away. When a little
    rain falls, the plants hold the water. Without plants, the land can become a desert much more easily.
    1. What may cause the land become a desert, according to(根据) the writer?
    A. Some places don't get very much rain.              
    B. Plants don't let the hot sun make the earth even drier.              
    C. People don't keep the earth well.              
    D. Scientists haven't learnt enough about the deserts.
    2. Scientists            to make the deserts into a good land again.
    A. carry water    
    B. grow food    
    C. do nothing    
    D. study a lot
    3. Which of the following is NOT true?
    A. The land never stops becoming deserts.              
    B. Scientists ask people to live in the deserts and grow food there.              
    C. People do bad things to the earth.              
    D. Scientists may not be able to change the deserts.
    4. Why are green plants and grass helpful?
    A. They can hold the water.        
    B. They can stop the wind from blowing the earth away.        
    C. They can keep the earth wet.        
    D. All the above.
    5. Which of the following is the best title(标题) for the passage?
    A. The Desert Problem.        
    B. People Make Deserts.        
    C. Green Plants and Grass.        
    D. The Desert, the Tree and the Water.

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