Napoga  is a 12—year---old  girl in Ghana, Africa. It is hard for her family to get clean water . Every morning , she leaves home at half past five to get clean water for her family in a village far away . It takes her six hours to get enough clean water for daily cooking and drinking. She has no time to go to school or to play with her friends. Millions of people in the world are like Napoga . They can’t get enough clean water to keep healthy.
Earth Day is April 22. But on all other days, we must also remember it. The water we use is the most important natural resource(自然資源)on the earth.
Water covers 70 perent of the earth’s surface (表面). But most of that is sea water. We can’t use it for very many things.  Fresh water covers only one percent of the earth’s surface.
You probably feel lucky that your life isn’t as hard as Napoga’s . But that doesn’t mean you don’t have to worry about water. We all face serious water problems. One of them is water pollution. All kinds of things from cars, factories, farms and homes make our rivers , lakes , and oceans dirty. Polluted water is very bad for people to drink. And dirty water is bad for fish , too. Now, thirty-four percent of all kinds of fish are dying out.
How do cars and factories make our water dirty? First, they pollute the air. Then , when it rains, the rain water comes down and makes our drinking water dirty. Dirty rain, called acid rain(酸雨), is also bad for plants ,animals and buildings.
Scientists say that in 30 years, more than half of the people in the world won’t have enough clean water. We have to learn how to save more water for ourselves  and our children. Here is some advice for saving water:
● Turn off the water while you brush your teeth. You can save as much as 450liters(升)each month.
● Leaky taps （漏水的龍頭）waste a lot of water. Fix them right away.
●You can easily cut your 10—minute showers in half---and you’ll be just as clean.
●When you wash dishes, don’t let the water run.
●Only wash clothes when you have a lot to wash. If your washing machine isn’t full , you are wasting water!
根據(jù)材料內(nèi)容，選擇最佳答案，并將其標(biāo)號填入題前括號內(nèi)。
小題1:Every morning Napoga went to get clean water _________.
A．before she went to school
B．a(chǎn)fter she finished school
C．without going to school
D．a(chǎn)fter she played with her friends
小題2:On the earth, _______________.
sea water is  more widely used than fresh water
B.there is very little water for our living
C.there is 71 percent of fresh water
D.we don’t need to worry about water
小題3:Acid rain____________________________.
A．is only bad for living things.
B．can be produced in factories
C．doesn’t do harm to people , but it’s bad for plants, animals and buildings.
D．doesn’t just do harm to human beings but to animals, plants and buildings.
小題4:Which of the following wastes water?
A．We need ten minutes if we want a clean shower.
B．We should put in enough clothes when we wash them in washing machines.
C．You can keep yourself clean by having a shower for five minutes.
D．Don’t let the water run when we brush our teeth and wash dishes.
小題5:What’s the main idea of the passage?____________.
A．Something must be done to prevent water from being polluted.
B．Clean water means much to human beings and living things around us.
C．It’s time to take care of the water we use.
D．Water is the most important natural resource on the earth.

小題1:C
小題2:B
小題3:D
小題4:A
小題5:C

試題分析：短文大意：這篇短文主要講述了地球上的水資源短缺問題，告訴我們應(yīng)該行動起來節(jié)約用水，并就此提出了幾點(diǎn)建議.
小題1:段落大意題。根據(jù)短文第一段描述，可知Napoga 每天早晨都去打水，因此沒有時(shí)間去學(xué)校了。故選C。
小題2:段落大意題。根據(jù)短文第三段描述，可知地球上可用來生存的水資源很少。故選B。
小題3:細(xì)節(jié)理解題。故短文第五段Dirty rain, called acid rain(酸雨), is also bad for plants ,animals and buildings.描述，可知酸雨不但對人類有危害，而且對動物，指物和建筑物都有危害。故選D。
小題4:細(xì)節(jié)理解題。根據(jù)You can easily cut your 10—minute showers in half---and you’ll be just as clean.描述，可知洗淋浴用10分鐘是一種浪費(fèi)水的行為。故選A。
小題5:主旨大意題。閱讀短文可知，本文主要講述了地球上的水資源短缺的問題，號召我們行動起來保護(hù)水資源。故選C。
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