任务型写作练习（一）
读写任务（满分25分）
请阅读以下的短文，然后根据提供的任务说明和写作要求， 写一篇150字左右的英语短文。
（任务说明）
1.概括短文的内容要点（该部分的字数大约60-80）；
2.清楚地陈述你自己的看法；
3.提供具有一定说服力的论据或实例来支持你的观点，可以参照文中的内容，但不能抄袭文中的句子；
4.文章体裁不限，但必须结构合理，内容连贯，有条理性。
（阅读材料）
Almost everyone knows that water covers three-fourths of the earth's surface. Most of it， however， is in the oceans and is too salty to drink. Also， some of it is frozen and cannot be used. In fact， less than one percent is left for the use of people， animals and plant life. All through history men have tried to build their homes near the sources of fresh water. Now fresh water is becoming scarce， but more and more is needed because of the increasing number of people in the world. Some industries also use large amounts of fresh water in the production of things such as steel， petroleum， paper and rubber and so on. Scientists estimate that the need for fresh water will have doubled by the year 2003. If they are correct， we must find new ways of saving it or producing it. Some nations have worked on the problem and are already sharing their information with others. They are trying to keep their rivers from becoming polluted. Deep wells are also being dug， and rain water is being collected in huge artificial lakes. In one way or another， they hope to provide enough water to satisfy the needs of their people.
参考范文
With the worldwide increase of population， more and more water is needed. Meanwhile，the water sources are getting polluted by human beings in one way or another. Some nations are taking measures to solve this problem. They even communicate with each other hoping to find better ways to save and produce water to meet the needs of their people.
On a personal level， to solve the problem with fresh water， both the government and individuals should make every effort. For example， for the government， it is urgent to make detailed laws that require businesses and individuals to stop polluting the environment and to save water while it is not necessarily used. Besides， education should be offered to all the citizens to raise their awareness of the importance of protecting environment and saving water. As individuals， we need to take action to play our own part in our everyday life.
随着世界人口的增加，越来越多的水被需要。同时，水污染源被人类以一种或另一种方式受到污染。一些国家正在采取措施来解决这个问题。他们甚至互相交流，希望能找到更好的方法来节约和生产水来满足人们的需求。
在个人层面上，要解决淡水问题，政府和个人都应该尽一切努力。例如，对于政府来说，迫切需要制定详细的法律，要求企业和个人停止污染环境，节约用水，而不必使用它。此外，应向全体公民提供教育，提高他们对保护环境和节约用水的重要性。作为个人，我们需要在我们的日常生活中扮演自己的一部分。
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