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    Learn to save the sources and the earth. 【查看更多】

     

    题目列表(包括答案和解析)

    (C)The earth is not only, but also thirsty for water. This may seem strange to you. because nearly 70% of the earth’s surface（表面）is covered with water. But about 97% of that is sea water, or salt water. Man can only use the other 3%—the fresh water from rivers, lakes, and other sources. And we can’t even use all of that, because some of it is in the form of icebergs and glaciers（冰川）. Even worse, some of it has been polluted.
    However, as things stand today, the fresh water is still enough for us. But our need for water is becoming larger and larger quickly—almost day by day. We should take steps to do with this problem now and in this way we can get away from a serious world-wide water shortage later on.
    We all have to learn how to stop wasting our valuable water, one of the first step is to develop ways of reusing it. Today in most large cities, water is used only once and then sent out into a sewer system(下水道), from there it returns to sea or runs into underground (地下)places.
    But even if every large city reused its water, we still would not have enough. All we’d have to do to make use of sea water in the world is to remove the salt.
    小题1: The earth is thirsty for water because_______ .
    A．man has not enough food to eat.
    B．we haven’t had enough fresh water
    C．only 70% of the earth’s surface is covered with water.
    D．more water is sent into the sewer system
    小题2:The underlined word “valuable ” means _______.         .
    A．much and saltB．fresh and enough
    C．dear and usefulD．clean and helpful
    小题3: What can we do if we want to have enough fresh water?
    (a) make good use of the sea water.
    (b) carry salt water into lakes and rivers.
    (c) try to save the fresh water as much as possible
    (d) do our best to use the water again.
    (e) drink and use all the water on the earth’s surface
    A．(c)and(e)B．(a) and (b)
    C．(a), (c)and(d)D．(b) , (d) and(e)
    小题4: The best but the most difficult way to solve the water problem of the world is to ___
    A．remove the salt from the sea water
    B．make the water in the cities clean.
    C．take the water from underground
    D．make the need for the water smaller.
    小题5: What is the best title for this passage?
    A．The Importance of WaterB．The World’s Water Problem
    C．The Thirsty WorldD．Fresh Water and Sea Water

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        Much less than one percent of the earth's water can be used by humans. Areas that need a lot of water often have to bring it in from far away. For example, southern and central California get most of their water from northern California. The Middle East and Mexico are among the places where large areas are short of water. Much of the shortage (短缺) in such places is caused by poor use of water, such as pollution and waste.

        Most places have enough water for drinking, farming and industries. However, as cities grow larger and industries expand, more and more water is needed. This may mean that more sources (来源) of water need to be found. But by saving water, existing (现有的) water can be used longer. This allows towns, cities and industries to grow without the need to find more water sources.

        What are some ways that ordinary people can save water?

    A survey shows that washing clothes, taking showers and using toilets make up about 80 percent of a family's water usage. So using showerheads, toilets, and taps that use less water can help save a lot of water in the home. 

    (    ) 53. One of the possible reasons why Middle East and Mexico are short of water is               that ________.

              A. many industries in these places use a lot of water

              B. they pollute and waste existing water

              C. they have few lakes and rivers

              D. they don’t have enough money to buy water

    (    ) 54. What's the meaning of the underlined word "expand"? 

              A. 发展       B. 使用       C. 浪费       D. 匮乏

    (    ) 55. According to the survey, which probably use the least water in families?

             A. Taking showers.             B. Using toilets.

             C. Washing dishes.             D. Washing clothes.

    (    ) 56. Which of the following can we learn from the passage?

             A. By saving water, we may not need to find more water sources.

             B. People in southern and central California are rich.

             C. Northern California will not have enough water in the future.

             D. Washing clothes and washing dishes make up 40 % of a family's water usage.

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    阅读理解。
       The world is not only hungry, but it is also thirsty for water. This may seem strange to you, since nearly
    70% of the earth's surface (表面) is covered with water. But about 97% of that is sea water, or salt water.
    Man can only use the other 3% the fresh water from rivers, lakes, underground, and other sources (源泉).
    And we can not even use all of that. Even worse, some of it has been made dirty.
        However, as things stand today, this fresh water is still enough for us. But our need for water is becoming
    larger and larger quickly-almost day by day. We should take steps to do with this problem now and in this
    way we can get away from a serious world-wide water shortage (缺乏) later on.
        We all have to learn how to stop wasting (浪费) our valuable water. One of the first steps is to develop
    (开发) ways of reusing it. Today in most large cities, water is used only once and then sent out into a sewer
    system(下水道). From there it returns to sea or runs into underground places. But even if every large city
    reused its water, we still would not have enough. All we'd have to do to make use of sea water in the world
    is to remove the salt. If we take these we will be in no danger of drying up.
    1. The world is thirsty for water because ___.
    [     ]
    A. man has not got enough food to eat
    B. we haven't got enough fresh water
    C. only 70% of the earth's surface is water
    D. more water is sent into sewer system
    2. The underlined word "valuable" means ___ and ___.
    [     ]
    A. much, salty
    B. fresh, enough
    C. dear, useful
    D. clean, helpful
    3. What should we do if we want to have enough fresh water? ___.
    [     ]
    A. Make full use of the sea water
    B. Carry salt water into lakes or rivers
    C. Try to save the fresh water as much as possible
    D. Do our best to use the water again
    4. The best but the most difficult way to solve (解决) the water problem of the world is to ___.
    [     ]
    A. remove the salt from sea water
    B. make the water in cities clean
    C. take the water from underground
    D. make the need for water smaller
    5. What is the best title for this passage? ___.
    [     ]
    A. The Importance of the Water
    B. The World's Water Problem
    C. The Thirsty World
    D. Fresh Water and Sea Water

    查看答案和解析>>

    阅读理解。
         The world is not only hungry, but it is also thirsty for water. This may seem strange to you, since nearly
    70% of the earth's surface is covered with water. But about 97% of that is sea water, or salt water. Man can
    only drink and use the other 3%-fresh water from rivers, lakes, underground, and other sources (资源).
    But we cannot even use all of that.
          However, our need for water is becoming larger almost day by day. We should take steps (措施) to deal
    with (对付; 处理) this problem now and in this way we can avoid (避免) a serious worldwide water shortage
    later on.
          We all have to learn how to stop wasting our valuable water. One of the first steps is to develop (开发;
    发展) ways of reusing it. Today in most large cities, water is used only once and then sent out into a sewer
    system (下水道). From there it returns to the sea or runs into underground places.
          But even if (即使) every large city reused its water, we still would not have enough.
         All we have to do, to make use of (利用) sea water in the world, is to remove (去除) the salt. But it is not
    an easy thing.
    1. The world is thirsty for water because _______.
    [     ]
    A: man hasn't got enough food to eat.
    B: we haven't got enough fresh water.
    C: only 70% of the earth's surface is water.
    D: more water is sent into sewer system.
    2. The underlined word "valuable" means______.
    [     ]
    A: much and salty
    B: rare (稀罕)
    C: cheap and useful
    D: much and helpful
    3. What should we do if we want to have enough fresh water?
        (a) Make full use of the sea water.
        (b) Carry salt water into lakes or rivers.
        (c) Try to save the fresh water as much as possible.
        (d) Do our best to use the water again.
        (e) Drink and use all the water on the earth's surface.
    [     ]
    A: (c) and (e)
    B: (a) and (d)
    C: (a), (c) and (d)
    D: (b), (d) and (e)
    4. The best but the most difficult way to solve the water problem of the world is to           .
    [     ]
    A: remove the salt from the sea water
    B: make the water in the cities clean
    C: take water from underground
    D: make the need for water smaller
    5. The best title of this passage is ______.
    [     ]
    A: the World Is Not Only hungry but Also Thirsty
    B: We Should Make Steps to Deal with the Water Problem
    C: The World's Water Problem
    D: The Fresh Water Is Still Enough

    查看答案和解析>>

    The world is nor only hungry，but it is also t 1  for water．This may seem strange to you，since nearly 70％of the earth is c 2 with water：But about 97％of this huge amount is sea water，or salt water．Man can only drink and use the other 3％——the fresh water from rivers，lakes，

    underground，and other sources. Even w 3 ，some of it has been p 4 ．Now our need for water is i 5  -almost day by day．We must take steps to solve this prob1em，or we can’t a 6 a worldwide water shortage later on．

    We all have to learn how to  s 7  water．One of the first steps is to develop ways of reusing it．

    Today in most large cities，water is used only o 8  and then sent out into a sewer system(下水道)．But it is possible to get used water to a purifying(净化)factory．There it can be purified so t9   it can be used again．

        The world’s water shortage is a big p10 for humans．We must save every drop of water and keep our rivers and lakes clean．

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