The Importance of Water
Water is essential to living things. For instance, if there is no enough water in a human body, a person may feel uncomfortable or get sick easily. To make matters worse, one may die of thirst. Similarly, plants may wither or die for lack of water. It is apparent that all living things need water to keep alive.
Judging from the importance of water, we should know how to conserve water. The first thing is to stop polluting water because what we really need is clean water. At the same time, be sure to turn off the faucet immediately after using water. And we should make efficient use of water to avoid wasting it. One way is to recycle as much water as possible. To sum up, we should economize on water so as to maintain the abundance of water, which is an indispensable element of life.
或者是：
The Importance of Water
As we all know, plants and animals need water. So do the people's life and production, t,ife couldn't go on without water.
With the rapid development of agriculture and industry, more and more water is needed. Therefore, water is becoming scarce in many places. What's more, a lot of rivers and lakes are beginning polluted by the waste watcr from factories. Fish can't live in them any longer. At the same time, thc waste water does great harm to people's health.
In order to make rivers and lakes clean and prevent water from being polluted,we must do something to stop all sorts of pollution.
水的重要性
正如我们所了解的,动植物需要水,人类的生产生活也需要水.没有水便没有生命.
随着工农业的迅速发展,水的需要量越来越大.因此,许多地方缺水.而且,许多河流湖泊被工厂排放的污水所污染,鱼不能生存.同时,废水给人们的健康带来极大的危害.
为了保持河流湖泊清洁,防止水污染,我们必须采取措施,阻止各种污染.