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1、Goodafternoon,teachergirlsandboys:todaywearegoingtomakeaspeechhere.Ourtopicishowtoproctectenvironment.Tolovenatureistolovemankind.Ourenvironmentisveryimportantforourlives.Goodenvironmentmakesusfitandhappy.Inthepast,thereweremanytreesaroundus,theairwasfreshandtheriverwasclean
2、.however,withthedevolepmentofsociety.muchofournatureenvironmentisnowsufferingfromourhumanactivities.forexample1.Alargenumberofforestshavebeensacrificedforurbandevelopment. Furthermore,wearekillinganimalswhilecuttingdownthesetrees. Asaresult,manyanimalspeciesaredyingout.2.Ple
3、asehavealookalongthebanksoftheriver,largeandsmallindustrialenterprisesdischargedirtywater,tonsofgarbagewerethrownintotheriver,thewatercontainedsomuchthatitcan'tcleanitself.thediseasescausedbywaterpollutionareincreasingatafastspeed.3.Airpollutionisbecomingasevereproblem,which
4、mainlycausedbytransportactionandfactoriesproduction.Theairpollutionchangestheconditionsthatwedependon,suchasthegreenhouseeffectandtheacidrain.Thegreenhouseeffectleavesislandsandcitiesalongthecoastindanger4.Inmycountry,itisreportedthateachyearthousandsmillionsofplasticarecons
5、umedbythepeople..ifthepresentdamagetoournaturalenvironmentcontinues,mankindcouldbecommittingapainfulglobalThisfamousIndianpoetoncesaid,“Lifeisgiventous,andweearnitbygivingit.”Asthesayinggoes,natureisgiventous,andweearnitbycontributingtoit.However,mostpeoplenowadaysjustwantto
6、askformorefromthenature.Infact,theydoverylittlecontributiontothenature.Therefore,theenvironmentaroundusisbecomingworseandworse.Thiscomplexproblemcanhaveasevereimpactontheeconomyandthequalityoflifeforthisandfuturegenerations.Nowletusintroducefourmainpollutionanditseffect.第三部分
7、：whatshouldwedotoprotectourearth？Thereispolutioneverywhere. It'stimetodosomethingaboutit. Weneedfreshairtobreathe. Weneedpurewatertodrink. Weneedacleanenvironmenttobehealthy. Peoplehavetostoplittering. Wehavetorespectoursurroundings. Wemustbecomefriendso
8、ftheearth. Ppt开始 First,everyonemustgetinvolved. Everyonemustlendah
