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大学英语演讲稿范例

  演讲稿是一种实用性比较强的文体。是为演讲准备的书面材料。下面小编给您精心推荐的演讲稿范文,欢迎参考。想了解更多,欢迎访问留学网www.xueke8.com/yanjianggao。

  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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