英语演讲稿:英语演讲稿范文三分钟是一篇经典的英语演讲稿，你可以先模仿，然后融会贯通
whatisnature?itseverythingthatexistsintheworldindependentlyofpeople,suchaspantsandanimals,earthandrocks,andtheweather.nowmoreandmorepeoplearefocusingonthenature.
itisnodoubtthatthenatureisimportanttoeveryhumanbeing.
nonature,nolife.
becauseofthesuppliesofthenature,wehavelivedhappilyforalongtime.
andwestartedtogaineverythingavailablefromthenature.
andthislastedsolongatime.
today,peoplehavediscoveredthatthenaturearoundiswww.diyifanwen.comgettingworseandworse.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.