Inthepastfewdecades,ourEarthhaschangedalot,buttothebaddirection.Amongthesechanges,theairpollutionsresultingfromahugenumberofautomobilesandcoal-burningisalmosttheseverest.ThesevereairpollutionalarmshumansoftheheavyloadwehaveexertedonEarthbyourinsatiableproductionandusageofautomobiles.However,withthedeepeningofurbanization,morecarsareneeded,whichwillmaketheairpollutionworse.Therefore,thefollowingactionsshouldbetaken.First,weshouldapplythemostcutting-edgetechnologiesinordertoadoptnewformsofenergyassubstitutesforfossilfuels.Second,tryhardtodeveloppossibletransportationmeans,whichareenviromentalfriendly.Sothatthecitizenscanreducethedependenceoncars.Inshort,ourhumansshouldtakeresponsibilitiesfortheairpollutionandhavetofindwaystosolvethisproblem.

　　在过去的几十年中,我们的地球发生了很大变化,但是是往坏的方向.在这些变化中,大量汽车和煤燃烧产生的空气污染是最为严重的.严重的空气污染警告人类,我们无休止的的生产和使用汽车给我们的地球带来了沉重的负荷.然而,随着城市化的加深,汽车的需求量也越大,这会导致空气污染更严重.因此,我们应该采取以下行动.首先,我们应该运用最尖端的技术,以新型能源作为化石燃料的替代品.其次,努力寻找可能的环境友好型交通方式.这样城市居民就可以减少对汽车的依赖.简而言之,人类应该承担空气污染的责任,寻找解决这一问题的方法.