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    89．Many trees are around our school every year 【查看更多】

     

    题目列表(包括答案和解析)

    综合填空（10分）

    into?? cut?? measure?? important?? from?? harmful?? green? more?? affect?? by

    Trees are ? 1.? . However, people have ? 2.? down too many trees. A lot of rich land changes 3.? desert. How can that 4. the weather? Trees can stop the wind ? 5.? blowing the earth away. A lot of water can be saved 6.? forests. What’s 7.? , they can also prevent the water from washing the earth away.

    Cutting down trees is ? 8.? to human beings. We should take many ? 9.? to plant trees.

    Let’s be a ? 10.? person!

     

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    — Today the forests are getting fewer and fewer,

    — We must ____ down too many trees

    A．keep people from cutting                 B．prevent people from cutting

    C．stop people from cutting                  D．all the above

     

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     Today the forests are getting ____________, we must ________ down  too many trees.

    A．more and more, prevent people cutting

    B．fewer and fewer, stop people cutting

    C．smaller and smaller, keep people cutting

    D．bigger and bigger, keep people from cutting

     

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    Today the forests are getting fewer and fewer. We must ______ down too many trees.

    A. keep people from cutting????????? B. prevent people from cutting

    C. stop people cutting?? ??????? D. all the above

     

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    AVERAGE RESOURCES(资源)
    620 m3 water
    		If we put flesh water and sea water together，we can each have 620 m3 water．But remember，sea water is too salty for us to drink if the factories don’t process(加工)it first．So，620 m3 is little．Saving water in daily use is important．
    0．5 hectares of
    forests
    		There are 3．869 billion hectares(公顷)of forests on Earth．But we are losing them mainly because we cut trees too much．If we calculate(计算)at the size of a football field，we are losing 343，000 football fields every day，or 1，431 per hour，or 24 per minute !
    1．5 centimeters
    long corals(珊瑚)
    		All the corals that we have now spread(绵延)for about 100，000 km in 109
    countries．But each of us can only have such a little piece，because seas are get-ring polluted and corals are dying．
    33 stars
    		According to the latest report，there are 200 billion stars in the Milky Way．Each of us can have 33 of them．Unfortunately，we cannot see most of the 200 billion stars from Earth．We can only see about 6．000 stars．If we don’t use telescopes(望远镜)or we have bad weather，we can only see about 2，000 stars．
    90kg rice
    		On average(平均)，we get 0．54 billion tons of rice each year round the world
    and each of us can have 90 kg．Asia produces and eats 90％of all the rice．How long will it take you to eat up this 90 kg rice?
    【小题1】On average，maybe we each have________fresh water in the world．
    A．620m3B．more than 620m3
    C．far less than 620m3D．no more than 620m3
    【小题2】When we use telescopes or the weather is fine，we can see________stars from Earth．
    A．all the starsB．about 200 billionC．about 2．000D．about 6．000
    【小题3】According to the table above，we each can only have________because of pollution．
    A．less waterB．fewer forestsC．fewer coralsD．less rice
    【小题4】We are losing___________football fields every day because people cut down too many trees.
    A．343，000B．3．869C．1，431D．24
    【小题5】Which of the following is true according to the passage?
    A．We get 0.54 billion tons of rice each year round the world and each of us can have 9 kg．
    B．We cannot see most of the 20 billion stars from Earth．
    C．Sea water is too salty for us to drink if the factories don’t process it first．
    D．each of us can only have some pieces of corals，because seas are get-ring polluted．

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