中学生英语演讲稿 关爱大自然（共5页）3100字.docx

中学生英语演讲稿 关爱大自然（共5页）3100字.docx

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中学生英语演讲稿关爱大自然

　　whatisnature?

itseverythingthatexistsintheworldindependentlyofpeople,suchaspantsandanimals,earthandrocks,andtheweather.

　　nowmoreandmorepeoplearefocusingonthenature.itisnodoubtthatthenatureisimportanttoeveryhumanbeing.nonature,nolife.becauseofthesuppliesofthenature,wehavelivedhappilyforalongtime.andwestartedtogaineverythingavailablefromthenature.andthislastedsolongatime.today,peoplehavediscoveredthatthenaturearoundisgettingworseandworse.

　　whatisthreateningthenature?

airandwaterpollution,overharvestingofplantandanimalspecies,overpopulationandsoon.overpopulationisthebiggestsourceofpollution.letstakeoverpopulationasanexample.

　　whatdoesoverpopulationfeellike?

whenwemoveslowlythroughthecityinatazi.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.forexample,chinahascarriedoutbirthcontrolforyears.andthisplanhasagreateffectontheworldpopulation.

　　ifthepopulationcontinuestoincrease,iftheairandwatercontinuetobepolluted,ifwedontdosomethingtoprotectwild-plantandwildlifespecieswillbedeclining.speciesandbiologicalcommunitieshavedifficultyadaptingtochange.economicopportunitiesandthequalityoflifeoffuturegenerationsarealsoputatrisk.byprotectingnature,weprotectourselves.

　　letsunitetogether,handinhandwestandallacrosstheland.

　　wecanmakethisworldinwhichtolive.handinhand.controlthepopulationgrowth.takegoodcareofournature.