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1、中学生英语演讲稿-关爱大自然第一篇:中学生英语演讲稿-关爱大自然caringfornature--overpopulationwhatisnature?itseverythingthatexistsintheworldindependentlyofpeople,suchaspantsandanimals,earthandrocks,andtheweather.nowmoreandmorepeoplearefocusingonthenature.itisnodoubtthatthenatureisimportanttoeveryhumanbeing.nonature,nol
2、ife.becauseofthesuppliesofthenature,wehavelivedhappilyforalongtime.andwestartedtogaineverythingavailablefromthenature.andthislastedsolongatime.today,peoplehavediscoveredthatthenaturearoundisgettingworseandworse.whatisthreateningthenature?airandwaterpollution,overharvestingofplantandanimal
3、species,overpopulationandsoon.overpopulationisthebiggestsourceofpollution.letstakeoverpopulationasanexample.whatdoesoverpopulationfeellike?whenwemoveslowlythroughthecityinatazi.whenweenteracrowdedslumdistrict.whenthetemperatureishighandwhentheairisthickwithdustandsmoke.thestreetsarecrowde
4、dwithpeople.thestreetsseemalivewithpeople.peopleeating.peoplewashing.peopletalking.peoplesleeping.peoplevisitingeachother,arguingandscreaming.peoplerelievingthemselves.peoplepushingtheirhandsthroughthetaxiwindows,begging.peopleleadinganimals.people,people,people,people.aswedriveslowlythro
5、ughthecrowd,soundingthetaxishorn,thedust,heat,noiseandcookingfiresmadeitlikeascenefromhell!iadmit,frightening.tothenature,overpopulationisabigproblem.morepeople,morepollution.andthebigpopulationisthreateningthenatureeverysecond.therapidriseinworldpopulationisnotcreatingproblemsonlyforthed
6、evelopingcountries.thewholeworldfacestheproblemthatrawmaterialsarebeingusedupatanincreasingrateandfoodproductioncannotkeepupwiththepopulationincrease.peopleinrichcountriesmaketheheaviestdemandsontheworldsresources,itsfood,fuelandland,andcausethemostpollution.ababybornintheunitedstateswill
7、useinhislifetime30timesmoreoftheworldsresourcesthanababyborninindia.unlessallthecountriesoftheworldtakeunitedactiontodealwiththepopulationexplosiontherewillbemoreandmorepeoplefightingforashareoflessandlessland,foodandfuel,andthefuturewillbringpoverty,miseryandwartou