空气污染的英语作文 Air pollution

我们生活的地球正遭受着严重的空气污染。工厂排放的废气、燃烧的垃圾、汽车的尾气等都是污染大气的祸源。它们时刻侵袭着我们的呼吸道和肺，使呼吸系统的发病率逐年上升。

Theearthonwhichweliveistosufferfromseriousairpollution.Theexhaustgasfromthefactory,theburningofwaste,carexhaustandotherpollutionintheatmospherearethesourceoftrouble.Thetimeoftheinvasionoftherespiratorytractandlung,theincidenceofrespiratoryrateincreasedyearbyyear.

当空气轻微污染时，人体吸入的空气可以由鼻腔里的鼻毛除去部分灰尘，再由鼻腔里的黏液和各类支气管里的黏液将灰尘粘连住。气管和支气管内的纤毛有几千万根，它们每秒约摆动12次，像“清洁工”一样从下向上推扫呼吸道里的黏液，直至咽喉部，再通过咳嗽咳出体外。

Whentheairispollutedslightly,inhaledaircanbepartofthedustremovalbynasalcavityinthenose,thenasalmucusinthebronchialmucusandthedustadhesion.Trachealandbronchialciliaintensofmillionsoftheirroot,about12timespersecondtoswing,likea"cleaner"fromthebottomupsweepmucusintherespiratorytract,andthroat,coughupthroughinvitro.

当空气严重污染时，呼吸道的净化作用将降低，甚至完全丧失。在这种情况下，呼吸道和肺易受病菌的侵袭而患各种疾病。

Whentheairisseriouslypolluted,thepurificationeffectofrespiratorytractwillbereduced,andevenlostcompletely.Inthiscase,respiratorytractandlungisvulnerabletotheinvasionofbacteriaanddiseases.

由于种种原因，空气污染还在加剧。如果不能解决空气污染的问题，恐怕真有一天，人类只能带着口罩生活。

Duetovariousreasons,theairpollutionisgettingworse.Ifyoucannotsolvetheproblemofairpollution,Iamafraiditoneday,humanscanonlylivewithamask.