保护环境英语.ppt

保护环境英语.ppt

ID:56302978

大小:2.62 MB

页数:16页

时间:2020-06-10

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1、ToProtectEnvironmentFortheFutureTheworldischangingallthetime.Theenvironmentisgettingworseandworse,airpollutionandwaterpollutionhaskilledanumberofpeople.Worstofall,peopledidn’trealizethedangerofthepollution.ThewaterpollutionThemarinepollutionTheImportanceofWaterAsweallknow,plantsandanimalsneedwater.

2、Sodothepeople'slifeandproduction,lifecouldn'tgoonwithoutwater.Withtherapiddevelopmentofagricultureandindustry,moreandmorewaterisneeded.Therefore,waterisbecomingscarceinmanyplaces.What'smore,alotofriversandlakesarebeginningpollutedbythewastewaterfromfactories.Atthesametime,thewastewaterdoesgreatharm

3、topeople'shealth.Inordertomakeriversandlakescleanandpreventwaterfrombeingpolluted,wemustdosomethingtostopallsortsofpollution.ThepollutionoftheforestHowtoprotecttheforestAtfirst,thegovernmentcanpublishsomepoliciesaboutprotecttheforestandplantmoredifferenttreestokeepecologyinbalance.Secondly,asthemas

4、ters,weeachplayaroleinprotectinghomeland.Ofcourse,educatingchildrenisagoodway.TheairpollutionNowadaysPM2.5hasbecomeaproblemwehavetosee.Thefirstreasonis:Automobileexhaust.LargevehicledieselemissionisPM10"repeat",includingthebus,thebusunits,aswellasalargetrucketc..Cityoftoxicparticulatemattersources:

5、thefirstistheautomobiletailgas.Emissionsoffineparticlesaggregatedconsequentialoffense"istheuseofdieselcar".Smallcarsusegasolinewhileemissionsaregaseouspollutants,suchasnitrogenoxides,butrunintofog,canbeeasilytransformedintotwoparticles,increasethehaze.PM2.5whitepollutionItisaverycommonphenomenonfor

6、uswhenwegoshopping,wewillbuywhatweneedindailylifetogetherwithmany"free"plasticbags,whichweareinclinedtodiscardcasual.Itisaninterestingand"beautifullandscapes"toseemanycolorfulplasticbagsflyingintheskyespeciallywhenthereisastrongwind.Andwecalltheseplasticbags"whitepollution".Asweallknow,thewhitepoll

7、utionisbecomingmoreandmoreseriousnowadays.Thoughweknowitsbadeffects,stillwefinditdifficulttorefusethem,astheyareveryconvenientforus.Itsourdutytoprotecttheenvironment.Ifeveryonemakesacontributiontoprotecting

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