三分钟英语演讲稿精选(共4页)2400字.docx
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三分钟英语演讲稿精选(共4页)2400字.docx
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三分钟英语演讲稿精选
whatisnature?
itseverythingthatexistsintheworldindependentlyofpeople,suchaspantsandanimals,earthandrocks,andtheweather.nowmoreandmorepeoplearefocusingonthenature.
itisnodoubtthatthenatureisimportanttoeveryhumanbeing.
nonature,nolife.
becauseofthesuppliesofthenature,wehavelivedhappilyforalongtime.
andwestartedtogaineverythingavailablefromthenature.
andthislastedsolongatime.
today,peoplehavediscoveredthatthenaturearoundisgettingworseandworse.whatisthreateningthenature?
airandwaterpollution,overharvestingofplantandanimalspecies,overpopulationandsoon.
overpopulationisthebiggestsourceofpollution.
letstakeoverpopulationasanexample.whatdoesoverpopulationfeellike?
whenwemoveslowlythroughthecityinataxi.
whenweenteracrowdedslumdistrict.
whenthetemperatureishighandwhentheairisthickwithdustandsmoke.
thestreetsarecrowdedwithpeople.
thestreetsseemalivewithpeople.
peopleeating.
peoplewashing.
peopletalking.
peoplesleeping.
peoplevisitingeachother,arguingandscreaming.
peoplerelievingthemselves.
peoplepushingtheirhandsthroughthetaxiwindows,begging.
peopleleadinganimals.
people,people,people,people.
aswedriveslowlythroughthecrowd,soundingthetaxishorn,thedust,heat,noiseandcookingfiresmadeitlikeascenefromhell!
iadmit,frightening.tothenature,overpopulationisabigproblem.
morepeople,morepollution.
andthebigpopulationisthreateningthenatureeverysecond.therapidriseinworldpopulationisnotcreatingproblemsonlyforthedevelopingcountries.
thewholeworldfacestheproblemthatrawmaterialsarebeingusedupatanincreasingrateandfoodproductioncannotkeepupwiththepopulationincrease.
peopleinrichcountriesmaketheheaviestdemandsontheworldsresources,itsfood,fuelandland,andcausethemostpollution.
ababybornintheunitedstateswilluseinhislifetime30timesmoreoftheworldsresourcesthanababyborninindia.
unlessallthecountriesoftheworldtakeunitedactiontodealwiththepopulationexplosiontherewillbemoreandmorepeoplefightingforashareoflessandlessland,foodandfuel,andthefuturewillbringpoverty,miseryandwartousall.formostofthedevelopingcountries,itisagoodideatocontrolthepopulationgrowth.
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