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人教课标高二选修6Unit4,Unit4Globalwarming,Cleanupyourbuttsandbags,1.Whatisthemainpointofview?Themainpointofviewtobecircled:Allsortsofitemsbecomelitter,buttwoofthemostcommonandmostdangerousarecigarettebuttsandplasticbags.ReadTom’sessayaboutlitterandfinishthetasksbelow.,2.FindouttheevidenceTomgivestosupporthisargumentthatcigarettebuttsareanenvironmentalproblem.TheevidenceaboutcigarettebuttsTomgivestosupporthisargumenttobeunderlined:Over1,600billioncigarettesaresmokedeachyearinChina…thetoxicchemicalsadduptoagreatamount.,3.FindouttheevidenceTomgivestosupporthisargumentthatplasticbagsareanenvironmentalproblem.TheevidenceaboutplasticbagsTomgivestosupporthisargumenttobeboxed:Theyaremadefrom…tokillanotheranimal.,4NumbereachofTom’ssolutions:1)Putcigarettebuttsintherubbishbin.2)Nottoletplasticbagsbecomelitter.3)Usefewerplasticbagsandrecyclethem4)Nottosmoke.5)Notuseplasticbagsatall,Readtheessayagainandmakenotesinthetable.FirstParagraphPointofviewLitterisaseriousenvironmentalproblem,SecondParagraphFirstpointoftheargument;EvidenceCigarettebuttsaresmallbutarestillbadfortheenvironment.1.Over1,600billioncigarettesaresmokedeachyearinChina.Manyofthebuttsbecomelitter.,SecondParagraph2.4.5trillionbuttsarelitteredeveryyearintheworld.3.Buttsspoilthebeautyoftheenvironment4.Buttscontaintoxicchemicals.Thesegetintothewatersupply.Thesedecreasethequalityofthewaterandendangerlivingthings.5.Buttstakeupto5yearstobreakdown,sothetoxicchemicalsadduptoagreatamount.,ThirdParagraphSecondpointoftheargumentPlasticbagsareadangertotheenvironment.,ThirdParagraphEvidence1.Plasticbagsaremadefromnon-renewableresources.Iftheyarenotrecycled,theseresourcesarelosttous.2.InChina,2billionplasticbagsareusedeveryday.Manyofthesebecomelitter.,ThirdParagraph3.Plasticbagslastfrom20to1000yearsintheenvironment.4.Theycantravellongdistancesintheairandwater.Theyareinrivers,parks,beachesandoceans.5.Plasticbagskilluptoonemillionseabirds,100,000seamammalsandcountlessfisheachyearworldwide.,ThirdParagraph6.Aftertheanimalbreaksdown,theplasticbagbecomesfreeandcankillanotheranimal.,FourthParagraphPointofviewTheenvironmentwouldbelesspollutedifwecleanedupcigarettebuttsandplasticbags.Thebestsolutionwouldbenottosmokeoruseplasticbagsatall.,
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