4．Napoga is a 12-year-old girl in Ghana （加納），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 on the earth．
Water covers 70% of the earth's surface．But most of that is sea water．We can't use it for very many things．Fresh water covers only 1% 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，34% 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 30years，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 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're wasting water!
56．Every morning Napoga went to get clean waterA．
A．without going to school
B．before she went to school
C．after she finished school
D．after she played with her friends
57．On the earth，C．
A．there is 71% of fresh water
B．we don't need to worry about water
C．there is very little water for our living
D．sea water is widely used than fresh water
58．Acid rainD．
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
59．What's the main idea of the passage？A
A．It's time to take care of the water we use．
B．Water is the most important natural resource on the earth．
C．Something must be done to prevent water form being polluted．
D．Clean water means much to human beings and living things around us．
分析 文章大意：文章大意：Napoga 是非洲加納的一個十二歲的女孩，每天早上5：30去很遠的一個村莊獲取干凈的水，要花六個小時取夠每日的用水，沒時間去上學玩耍，世界上很多這樣的人，不能有足夠的干凈的水去保持健康．
我們使用的水是地球上最寶貴的重要自然資源，地球的70%是水，大部分是海水，新鮮水只有地球表面的1%．
我們現(xiàn)在有很嚴重的水源問題，其中一個就是水污染，污水對我們的健康不利，對魚也有害，所有種類的34%的魚已經滅絕，汽車和工廠污染了大氣，下雨時，污水就會落下，讓我們的飲用水變臟．臟的雨水叫做酸雨對植物，動物和建筑有害．
科學家說30年后，地球上有一半多的人沒有足夠的水，我們要為我們自己和孩子節(jié)約用水．
解答 56-59：ACDA
56題答案：細節(jié)題．根據文中的一段：She has no time to go to school…"可知，她根本沒有時間去上學．故選C．
57題答案：細節(jié)題．根據三段Water covers 70% of the earth's surface．But most of that is sea water．We can't use it for very many things．Fresh water covers only 1% of the earth's surface．70%被水覆蓋，但只有1%是飲用淡水．而世界上的很多國家和地區(qū)都缺水．所以選B項，即我們的生活用水很少．
58題答案：細節(jié)題．根據四段的Dirty rain，called acid rain，is also bad for plants，animals and buildings．臟雨，叫酸雨，對植物、動物和建筑物也有害可知，acid rain的危害很大．故選D．
59題答案：歸納題．根據文章大意應該節(jié)約用水了，故選A．
點評 本文是一篇日常生活類閱讀，題目涉及多道細節(jié)理解題，做題時結合原文和題目有針對 性找出相關語句進行仔細分析，結合選項選出正確答案．推理判斷也是要在抓住關鍵句子的基礎上合理的分析才能得出正確的答案．
