2021年英语四级作文范文：空气污染思维导图

AirPollution

ItisreportedthatthickfogandhazesurroundmanypartsofChina.Peoplehavetowearmaskswhentheygoout.Asairpollutionisgettingincreasinglyworse,ithasbecomethemainconcernofpeople.

Airpollutioncanhaveseriousconsequencesforhuman’shealthandalsoseverelyaffectsnaturalecosystems.Millionsofpeopledieofillnessesrelatedtoairpollutioneveryyear.Duetoparticlesfromexhaustemissions,greenhouseeffectsresultinwarmerweather,acidrainscorrodetheearth,andfrequenthazecausestrafficproblems.

Confrontedwithsuchsituation,positivemeasuresshouldbeadopted.Thegovernmentshouldkeepitsregulatoryroleforproperlysupervision.Relatedrulesshouldbemadeoutforreducingemissionsofnewvehiclesandlimitinghigh-emissionvehicles.Factoriesshouldmeetstandardsforcurbingemissionsofpollutantsinsurroundingcities.Meanwhile,provincesandmunicipalitiesineachtargetregionshouldsetupamechanismforthejointpreventionandcontrolofairpollution.

【点评】

文中从雾霾和人们带口罩出门引出空气污染这一话题，然后在第二段中谈及空气污染对人类健康和自然生态系统的影响，在最后一段中分别指出政府，工厂及省、市等需要采取措施解决空气污染的问题。

第一段中thickfogandhaze意为“雾霾”，gettingincreasinglyworse意为“日益恶化”;第二段中severelyaffectsnaturalecosystems意为“严重影响自然生态系统”，exhaustemissions意为“废弃排放”，greenhouseeffects意为“温室效应”，corrode意为“腐蚀”;第三段中keepitsregulatoryrole意为“发挥其监管的职责”;curbingemissionsofpollutants意为“减少污染物的排放”。