A Thirsty World-干渴的世界

2017-10-28 英语四级作文

  The world is not only hungry, it is also thirsty. This may sound strange, since nearly seventy percent of the earth's surface is covered with water. But about ninety percent of this is sea water. Man and most of the animals can only drink and use the remaining percent of water--fresh water.

  The need for water is increasing day by day. Only steps are taken to deal with this problem immediately can we avoid a severe world-wide water shortage later on. One of the first steps is to develop ways to reuse it.

  Experiments have already keen carried out in this field.The used witer has been pumped to a water-purifying plant.There, it can be separated from waste matter and treated with chemicals so that it can be used again, just as if it were fresh water from a spring.

【A Thirsty World-干渴的世界】相关文章:

1.A Thirsty World-干渴的世界

2.Women in the Modern World-现代世界上的妇

3.The World is Thirsty for Water

4.Salt Lakes of the World-世界上的咸水湖

5.Salt Lakes of the World-世界上的咸水湖

6.绿色的世界和灰色的世界

7.春的世界

8.未来的世界

Should Parants Accept Responsibility How do People Treat Animals?-人们是如何