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    Water is very important to our e . 【查看更多】

     

    题目列表(包括答案和解析)

    Choose the word or expression which is closest in meaning to the underlined parts in each sentence.

    (1) It is very important for us to save our earth.

    A．drown

    (2) Carbon dioxide is produced by burning things such as petrol, gas, coal and wood.

    B．erosion

    (3) Every year, a few people are killed by water when they are swimming in the sea.

    C．layer

    (4) Ozone forms an essential protective covering around the earth.

    D．vital

    (5) The burning and cutting down of trees causes gradual destruction and removal of the soil.

    E．fuels

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    阅读短文，将题后A～E五个句子填入文中空缺处，使短文内容完整。

    Water，like air and sunshine，is very important to living things．All animals and plants need water．  1

    Man also needs water．He needs it to drink，to cook and to clean himself．It even makes up the greater part of his body．

    Water is almost everywhere．  2  It is in lakes，rivers and seas．Even in the driest places of the world，there is water in the air．

    However，most of the water on earth is seawater．  3   So it is not good for drinking or washing．We can only drink or use fresh water．It makes up only a very small part of all tee water on earth．

    To make things even worse，our need for water is growing and，at the same time．we are wasting the clean fresh water．  4   As a result，there is not much drinking water left．  5 

    A．It covers most parts of the earth．

    B．So we may say，we are now living in a thirsty world．

    C．We are polluting the lakes and rivers．

    D．Without water，there can be no life on earth．

    E．There is too much salt in it．

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    根据句意和首字母或汉语提示完成单词，使句子正确，句意通顺。
    1. Sweden (瑞典) lies in the north of Europe. It is the fourth largest country in Europe with an a______
        of 450, 000 square kilometers.
    2. Children are p______ for doing some housework so that they can learn how to make money for their
        own use.
    3. It is very important to get e______ sleep every day to keep healthy.
    4. Andy moved to China in 2005. She has found many differences b______ Chinese and Americans.
    5. There was a fire in the office yesterday. L______, all the people were saved.
    6. To our ______ (惊讶), the factory is still pouring waste water into the river near it.
    7. The girl ______ (花费)a lot of time collecting stamps last year.
    8. It is a pity that there are a lot of people who do not know the ______ (重要) of time. They spent their
        time smoking, drinking and playing.
    9. Chinese parents are strict with their children and usually stop them from ______ (逗留) out too late
        with friends.
    10. Do you have bright ideas for inventions that ______ (改变) the world or, at least, make life easier for
         somebody?

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    根据短文内容，从短文后的选项中选出适当的选项补全短文。
    The earth is about 4,600 million years old. We humans have lived on the earth for only 35,000 years, but during this period we have changed our planet a lot in many ways.    1  
    All over the world, people have cut down millions of trees, so more and more kinds of animals and plants are disappearing. In big cities, cars and buses have polluted the air. Factories have also polluted the land and the water.
      2  It is important to the earth. But now air pollution is destroying it and that has made a very big hole in the ozone layer (臭氧层).   3 This is very dangerous because it can cause cancer.
    Carbon dioxide (CO2) in the air has increased a lot.   4 it has formed a "blanket" (毛毯) around the each.    5  This makes our earth become warmer and warmer. Therefore, this causes the level of the ocean to rise.
    All these problems are very serious. We must do something to stop our earth from being polluted anymore.

    A. The heat from the sun can' t escape, so the temperature is rising.
    B. Too much harmful light from the sun passes through it and reaches the earth directly,
    C. Some things we've done are very good for the earth while some are bad.
    D. Around the earth, there’s a special kind of oxygen (O2) called "ozone" (O3).
    E. It mainly comes from different kinds of burning materials.

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    根据短文内容，从短文后的选项中选出适当的选项补全短文。

         The earth is about 4,600 million years old. We humans have lived on the earth for only 35,000 years, but during this period we have changed our planet a lot in many ways.    1  

         All over the world, people have cut down millions of trees, so more and more kinds of animals and plants are disappearing. In big cities, cars and buses have polluted the air. Factories have also polluted the land and the water.

             2   It is important to the earth. But now air pollution is destroying it and that has made a very big hole in the ozone layer (臭氧层).   3  This is very dangerous because it can cause cancer.

         Carbon dioxide (CO2) in the air has increased a lot.   4  it has formed a "blanket" (毛毯) around the each.    5   This makes our earth become warmer and warmer. Therefore, this causes the level of the ocean to rise.

         All these problems are very serious. We must do something to stop our earth from being polluted anymore.

    A. The heat from the sun can' t escape, so the temperature is rising.

    B. Too much harmful light from the sun passes through it and reaches the earth directly,

    C. Some things we've done are very good for the earth while some are bad.

    D. Around the earth, there’s a special kind of oxygen (O2) called "ozone" (O3).

    E. It mainly comes from different kinds of burning materials.

     

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