关 键 词： 小学五年级 450字
字 数： 450字作文
本文适合： 小学五年级
作文来源： https://Zw.liuxuequn.com
作文网(zw.liuxuequn.com)提示:不知道是怎么回事,我们见到您特别亲切,因为您是上帝,只有您不断的访问我们,我们才会有动力做得更好!谢谢您的支持!
本作文是关于小学五年级450字的作文，题目为：《酸雨的英语》，欢迎大家踊跃投稿。
Saving the Earth
The population of the earth is increasing very fast. Humans must make the earth support the increasing population.This has made it necessary for agriculture and industry to develop rapidly. Such a rapid development produces more and more waste, which goes into the water, the soil and the air.Some of it is made harmless. However, where there is too much of it, the poisonous waste may do great harm to the things around the people.
When farmers add fertilizer to the soil to make plants grow better, or use poison to kill pests, poison is sent into the air, the water and the soil. When birds, fish and people eat the grain, drink the water or breath the air, harm will be done to their health.
The air in big cities is often made very dirty by cars and factories. Millions of tons of waste and poisonous gases are sent into the air with the smoke. In some places, little is done to make the smoke clean before it goes into the air.
Fortunately, people are beginning to realize just how serious the whole situation is. In many countries, laws have been made to stop factories from sending out poisonous gases.