四级作文：Air contamination_空气污染
在平时的学习、工作或生活中，大家都写过作文，肯定对各类作文都很熟悉吧，作文是经过人的'思想考虑和语言组织，通过文字来表达一个主题意义的记叙方法。那么问题来了，到底应如何写一篇优秀的作文呢？下面是小编收集整理的四级作文：Air contamination_空气污染，欢迎阅读，希望大家能够喜欢。
Air contamination
The picture reflects the air pollution is threats our healthy day by day,everybody has to wear masks to protect themselves from the fog and haze. Therefore,we can not neglect the seriousness of air pollution.
As a matter of fact,we have many methods to avoid or reduce the harm of air pollution.On the one hand,the major and largest sources of air pollution come from industrial pollution and automobile exhaust.Therefore,we should try to develop new energy to replace the tradition ones;in addition,public transportation vehicles is our top choice when we go out to doing something.On the other hand,we should plant more trees to absorb more carbon dioxide in the air and let trees release more oxygen through the process of photosynthesis.
In brief,the air belongs to us all and everybody on the planet ,to should take the responsibility for protecting the environment,to be specific,the air.
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