雾霾英文ppt讲课稿

雾霾英文ppt左图，长春，10月21日，一名女子走在雾霾的路上，这场雾霾迫停了商业、学校和交通。右图，伦敦，1953年11月，一名女子戴着面罩，在该城致命的大雾之后，雾霾期延续了近一年。Now,bythesepictures,wecanrealizetheseriousproblem.Thenwhatcausetheproblem?Whatcausethehaze?1.Thelowatmosphere.Theairrestingnearthegroundmaketheparticularmatter(weusuallycallthatPM)floatinginthespecificarea.Whatcausethehaze?2.Thedustyroadandthelowairhumidity(空气湿度).Carsandpeoplewillbringthedusttotheair.Whatcausethehaze?3.Withthegrowingnumberofthecars,muchmorepollutantletouttotheair.4.Second-handpollutionmakebyfactories.5.TheemissionsofcarbondioxideandotherpollutantscomefromWinterheating.DamageThemostweconcernishowithurtsus.1.Itmayhasabadeffectonourrespiratoryorganandcardiocascularsystem(心血管系统).Ultravioletrayswillbecutdownandthatwillmakethegermsmoreinfected.Damage2.Trafficiseffected.Thehazewillreducethevision.Theworseisthatthetrafficwillbemuchbusierandthepossibleofaccidentwillraiseup.Damage3.Fog,hazeweather,theairwilloftenwithbacteriaandviruses,easytocausethespreaddiseases.Damage4.Itisnotconducivetothegrowthofchildren.5.Influencepsychologicalhealth.6.Influencetherespiratorysystem.Howshouldwedo?GooutwearingmasksDonotopenthewindowinthehazeweather

Lightdietanddrinkplentyofwater（饮食清淡多喝水）Whatweshouldeatbetter?tomatoesgarlic

vegetablespersimmonsGoodpersonalhygiene（良好的个人卫生）Inc