unit one lead-in 补充资料

《unit one lead-in 补充资料》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、UnitOneLead-in补充资料SomealarmingfactsOne-thirdoftheworld’speopledon’thaveenoughcleanwater.Two-thirdsoftheworld’soceancoastlinesarepolluted.ChemicalshavedestroyedtenpercentoftheozonelayeroverEuropeandNorthAmerica.Eachyear,peopleruinorcutdownnearly143,000squarekilometersofforest.Everyday,Am

2、ericansandCanadianscreateabout1.8kilogramsofgarbageperperson.MorehelpfulwordsforyourreferenceTheoceanarebeingpollutedbyindustrialwaste.Fishsupplieshavebeendepletedthroughoverfishing.Automobilepollutionhasloweredtheairqualityinmostmajorcities.Airpollutionisthreateningthehealthofolderpeop

3、leandchildren.Livestockfarmshavecontaminatedsoilandundergroundwater.Theburningofgas,oil,andcoalhascreatedacidrainwhichisdamagingforestsandlifeinriversandlakes.MorehelpfulwordsforyourreferenceThecuttingdownofrainforestsisdestroyingrareplantsandwildlife.Thegrowthofcitieshaseatenuphugeamou

4、ntsoffarmland.Povertyandovercrowdingareruiningthelivesofpeopleinmanycities.TheuseofCFCs(chlorofluorocarbon氟氯化碳)inproductslikehairsprayhascreatedaholeintheozonelayer.Andthereductionoftheozonelayerhascausedmanymorecasesofskincancer.Assignment1foreachofyouFindInconvenientTruthonwww.youku.c

5、omwithChineseorEnglishscripts.Findthefollowingvideosonwww.ted.com.LettheEnvironmentGuideOurDevelopment4Environmental'Heresies‘MyWish:ManufacturedLandscapesandGreenEducationMyGreenschoolDreamTheSciencebehindaClimateHeadlineWhyImustspeakoutaboutclimatechangeMore…keyword:environment,develo

6、pmentAssignment2foreightofyouPresentationCaringforOurEarthGlobalWarmingDebateDevelopedCountriesHaveaHigherObligationtoCombatClimateChangeThanDevelopingCountriesDiscussthefollowingtopicswiththehelpofthepictures.Heated...Sweating!WhyistheEarthsweatingandsteaming?Doyouwanttojointhecrowdsta

7、ndingbyandwatching,ortodosomethingtohelpher?Accordingtoscientists,thesatellitedataconfirmtheEarthhashadanincreasing"fever"fordecadesbecausecarbondioxideandotherairpollutionhavebeentrappingthesun’sheatandcausingtheEarthtowarmup,sweatandsteam.Globalwarmingisreallyabigproblemwehav