保护环境-英语演讲

Doyouthinktheyarebeautiful?•Andwhataboutthesepictures?HowtoprotectenvironmentTheworld'sseriousenvironmentalproblems1.Globalwarming2.Thespreadofacidrain3.Forestdropped4.Airpollution5.Waterpollution1.GlobalwarmingTheglobalwarmingIncreasingglobaltemperaturewillcausesealevelstoriseandwillchangetheamountandpatternofprecipitation,includinganexpanseofthesubtropicaldesertregions.Otherlikelyeffectsincludeincreasesintheintensityofextremeweatherevents,changesinagriculturalyields,modificationsoftraderoutes,glacierretreat,speciesextinctionsandincreasesintherangesofdiseasevectors.2.Thespreadofacidrain3.ForestdroppedPlantmoretrees;protecttheforestsandalltheanimalsUseofrenewablematerialsRestricttheuseofprivatecarsImplementofsustainableeconomicdevelopment4.AirpollutionAirpollutionisbecomingasevereproblem,whichmainlycausedbytransportactionandfactoriesproduction.Theairpollutionchangestheconditionsthatwedependon,suchasthegreenhouseeffectandtheacidrain.Itcausesmanydiseases,too.5.WaterpollutionWaterpollutionisthecontaminationofwaterbodiessuchaslakes,rivers,oceans,andgroundwater.Allwaterpollutionaffectsplantsthatliveinthesebodiesofwaterandinalmostallcasestheeffectisdamagingeithertoindividualspeciesandpopulationsbutalsotothenaturalbiologicalcommunities.•Whatshouldwedo?Whenyouleavetheroom,pleaseturnoffthelamptoconserveelectricity.Thankyou!