三一口语六级自选话题.doc

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1、1.TheearthisindangerTheearthwearelivingonisgettingworseandworse.Toomuchpollutionmakestheearthindanger.Wemustthinkaboutourfuture.Wehaveunderstoodtheproblemsoftheenvironment.2.WaterandairpollutionIfyouliveinabigcityyoumustknowaboutthepollutionofcarsandbuses.Doyoudrivetoworkeveryday?It’snotgoodfortheen

2、vironment.Iknowyouhaveseenthefactory,whichhasmanychimneysonitandsomefoulwaterchannelstotheriverorthesea.Itmakespollutionandmanyriversandlakesdiedfromthis.3.TheozonelayerHaveyoueverusedtheair-conditionerinsummerorwinter?It’sbadfortheozone.Thereisanozonelayeroveroneofthepolarregions.Ifwedidn’thaveozon

3、e,therewouldbetoomuchradiationontheearth.Itmakesthegreenhouseinfect.Itcanmelttheiceofthepolarregions.Ifitmelted,thelandwouldfullofwater,peoplewouldhavenowheretolive.4.HelptheforestsWehavecutdownmillionsandmillionsoftreestomakepaper,woodenfurnishings,someofthechopsticks.Solotsoftheforestshavebeenlost

4、.Andmanyoftheanimalsarehomeless.Andmanyoftheplantshavedisappeared.Iftherearenotreesnothingcanhelpustoproduceoxygenandcontroltheclimate.5.NewsourcesofenergyTherearesomegoodthingstoknowfortheenvironment,suchasthenewtypesofgenerators.Doyouknowthewavegenerator?Itmakeselectricityfromtheoceanwaters.Itcanp

5、roducealotofelectricitybutitisdifficultforshipstogetintotherivers,anditcausesfloods.Solarcellsmakeelectricityfromthesun.Theycan’tcausefloods,buttheytakealotofspace.Windgeneratorsmaketoomuchnoise.Ofcourse,sometimeswedon’thavewind.6.RecyclingWethrowtoomanythingsaway.Wemustrecycleeverything.Doyouusethi

6、ngsthataremadeofpaper,glass,metalandplastic?Afterusingthem,doyouthrowthemawayorrecyclethem?Youhavetorecyclethem.Ifwedothatwewillsavemorethingsandwewon’thavetomakenewthings.7.Whatshouldwedo?Weshouldusethebikeorthesubway.Uselesswoodenthings.Savetheelectricity.Recyclethetingsyoucan.Weshouldn’tuseair-co

7、nditioningtomuch.Pleasebeafriendlytotheenvironment.Pleasebeafriendlytoourself!