三年级雾霾作文300字如何写？( 五 )

如此大的“害虫”原来也是人类自身无限制的开采与破坏环境造成，多么希望我们生活的环境是蓝天碧水，四季如画呀!请还地球一片绿吧!

三年级雾霾作文300字如何写？

The hazy weather
This year the character ‘haze’ came into our life ,the problem of which has aroused people’s concern.
The hazy weather has a bad influence on our daily life , especially in our breath system and transportation .Some Ridicules show the bad hazy effect , for example :“The longest distance in the world is that I could not see Chairman Mao even though I am right in front of the Tiananmen! ” and “Dust and smog is crazily thick! Be strong and do not breathe!（厚德载雾，自强不吸）”Then ,how does this happen ? First ,wo should know haze is a kind of weather , but it is not like the rain、the snow .Originally it is a reflection to serious pollution , it is a red warning signal .There i conclude two reasons .First , Large pollutant emiion is the crucial factor .Second , Disadvantageous condition for dispersal(扩散条件不利) , emiion is unavoidable ,but dispersal must be timely .
So ,what should we do in the haze ? When we go out ,we should wear mask , and take public transportation .The media should face the problem ,not sugarcoat (粉饰 [\\'??ɡ?,k??t] ) it .The government ought to enhance the public supervision(社会监管) , and develop clean energy .
We are all in this together! We shall survive and thrive together!

三年级雾霾作文300字如何写？

大家好，我是雾霾。是一些空气动力学直径小于2 。5微米的颗粒，名字叫PM2·5 。和忠实的护盾PM1·0是兄弟。我介绍一下我的来历、我的危害和怎么预防我。
首先，我来自燃油、燃煤等生物质的燃烧。工业、养殖、化肥、扬尘、尾气等都是我的来源。当你们觉得不用重视它的时候，觉得它是属于小事的时候，我就跑出来了。我有多到无法计数的兄弟，这当然多亏了燃煤和燃油，因为我60％兄弟来自燃煤、燃油的燃烧！
还有，我对你们人类有很多的危害。我是这样进入和危害人体的：第一关，从鼻口进入。可恶，鼻毛和鼻涕拦住了我一部分的兄弟，不过这没关系，我兄弟多着呢！第二关，上呼吸道。人的上呼吸道的绒毛一分钟要扇好多次，差一点我也被扇走了……但是最终，当我到达你们肺部的时候，你就是我的战利品啦。
当然，你们预防我也不难。但是要有条件的：首先要减少燃煤燃油的燃烧，其次，要少开车多用自行车，低碳出行。第三，多用天然气。最后，要按标准排放废气废物，举报超标排放的工厂。

三年级雾霾作文300字如何写？

一连几天，我们这里都是雾霾的天气。
真气人，今早上又是雾霾。我和妈妈要去姥姥家，只好骑着电动车慢慢的出了门。