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    A new study warns that about thirty percent of the world's people may not have enough water by the year 2025.
    A private American organization called Population Action International did the new study. It says more than three-hundred-thirty-five-million people lack enough water now. The people live in twenty-eight countries. Most of the countries are in Africa or the Middle East.
    P-A-I researcher Robert Engelman says by the year 2025, about three-thousand-million people may lack water. At least 18 more countries are expected to have severe water problems. The demand for water keeps increasing. Yet the amount of water on Earth stays the same.
    Mr. Engelman says the population in countries that lack water is growing faster than in other parts of the world. He says population growth in these countries will continue to increase.
    The report says lack of water in the future may result in several problems. It may increase health problems. Lack of water often means drinking waters are not safe. Mr. Engelman says there are problems all over the world because of diseases, such as cholera, which are carried in water. Lack of water may also result in more international conflict. Countries may have to compete for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.
    The Population Action International study gives several solutions to the water problem. One way, it says, is to find ways to use water for more than one purpose. Another way is to teach people to be careful not to waste water. A third way is to use less water of agriculture.
    The report also says long-term solutions to the water problem must include controls on population growth. It says countries cannot provide clean water unless they slow population growth by limiting the number of children people have.
    小题1:           are expected to have severe water problems by the year 2025.
    A．18 countriesB．No countries
    C．46 countriesD．28 countries
    小题2:All the following are true except            .
    A．New industries need a lot of water
    B．There are solutions to the water problem
    C．Egypt now has enough fresh water
    D．Lack of water may cause conflict between countries
    小题3:It can be learned that          .
    A. The ability of developing has nothing to do with lack of water.
    B. . It is not known whether diseases have something to do with lack of water
    C. Lack of water may also result from international conflict
    D There is connection between providing clean water and slowing population growth
    小题4:The best title of the passage would be         .
    A．World Water ShortageB．Population and Water
    C．World ConflictD．Diseases and Water

    小题1:D
    小题1:B
    小题1:B
    小题1:C
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    科目：高中英语 来源：不详 题型：阅读理解

    阅读理解D
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    Lichens (地衣) are difficult to see. They don’t move. They often mix into the living place. You might not even recognize one if you are looking right at it.
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    D．The family tree of lichens.
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    D．To understand why lichens can live in different places.
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    科目：高中英语 来源：不详 题型：阅读理解

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    D．Radio communications are quite difficult in a vacuum.

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