高中英语 选修六 4.6《Unit 4　Writing》课件 23页

新课标人教版课件系列《高中英语》选修(模块）6-4.6\nWriting\nREADINGTASKAnswerkeyforExercise1:Twoofthemostcommonanddangerouslitter:cigarettebuttsandplasticbags.\nCigarettebuttsaresmallbutbadfortheenvironment:over1,600billioncigarettesaresmokedeachyearandlargequantitiesofbuttsarethrownaway;Buttscontaintoxicchemicals;Decreasethequalityofwater;Endangerplantsandanimals.\nPlasticbagslitterisadangertotheenvironment:Wasteofnon-renewableresources;Lastfrom20to1,000yearsintheenvironment;Killuptoonemillionseabirds,100,000seamammalsandcountlessfisheveryyear.\nTom’ssolutions:1)Putthemintherubbishbin.2)Nottoletplasticbagsbecomelitter.3)Itwouldbebetteriftheyusedfewer.4)Recycledthem.5)Nottosmoke.6)Notuseplasticbagsatall.\nAnswerkeyforExercise2(P67)ParagraphIPointofviewCigarettebuttsandplasticbagsareaseriousenvironmentalproblem.\nParagraphIIFirstpointoftheargument;EvidenceCigarettebuttsaresmallbutbadfortheenvironment.1.Over1,600billioncigarettesaresmokedeachyearinChina.Manyofthesebecomelitter.\nParagraphII2.4.5trillionbuttsarelitteredeveryyearintheworld.3.Buttsareugly.4.Buttscontaintoxicchemicals;Decreasethequalityofwater;Endangerplantsandanimals.5.Buttstakeupto5yearstobreakdown,sothetoxicchemicalsadduptoagreatamount.\nParagraphIIISecondpointoftheargumentPlasticbagsareadangertotheenvironment.\nParagraphIIIEvidencePlasticbagsaremadefromnon-renewableresources.Iftheyarenotrecycled,theseresourcesarelosttous.InChina,2billionplasticbagsareusedeveryday.Manyofthesebecomelitter.\nParagraphIII3.Plasticbagslastfrom20to1000yearsintheenvironment.4.Theycantravellongdistancesintheairandwater.Theyareinrivers,parks,beachesandoceans.5.Plasticbagskilluptoonemillionseabirds,100,000seamammalsandcountlessfisheachyearworldwide.\nParagraphIII6.Aftertheanimalbreaksdown,theplasticbagbecomesfreeandcankillanotheranimal.\nParagraphIVPointofviewTheenvironmentwouldbelesspollutedifwecleanedupcigarettebuttsandplasticbags.Thebestsolutionwouldbenottosmokeoruseplasticbagsatall.\nWritingTask(P67)Writingtips:Step1:Writeoutthethesisstatement.(pointofview)Step2:Writeoutthetopicsentenceofthefirstbodyparagraph.Step3:Givethesupportingpointsanddetailsaboutthefirstsubtopic.\nStep4:Writeoutthetopicsentenceofthesecondbodyparagraph.Step5:Givethesupportingpointsanddetailsaboutthesecondsubtopic.(morebodyparagraphs...)\n●Nowchooseatopicfromthebelowlistthatyoufeelstronglyabout.Makenotesonyourtopicusingheadingssimilartothoseinthetableabove.UseTom'sessayasamodeltowriteyourown.\nAsamplelistofenvironmenttopics:airpollution,noise,soilerosion,waterpollution,litterclassification,desertification,makegreenbyplantingtrees\nAsampleversion:TheEnvironmentalEffectsofFossilFuelsThereisnodoubtthatfossilfuelsbringalotofgoodtous.Butdoyouknowthatmanyoftheenvironmentalproblemsourcountryfacestodayresultfromourfossilfueldependence.\nTheenvironmentfacesairpollution,globalwarming,acidrain,andseveralotherveryseriousproblemsbecauseofouruseoffossilfuels.Overthelast150years,burningoffossilfuelshasresultedinmorethan25percentincreaseincarbondioxideinouratmosphere.\nCarbondioxideisoneofthemainfactorsinglobalwarmingwhichisnegativelyaffectingeveryone.Fossilfuelsalsoaffectwaterpollution,landpollution,andthermalpollution(heatpollution).\nCoalminingisoneofthecausesofpollutionintheenvironment.Aftertheminingiscompleted,thelandwillremainbarren.Materialsotherthancoalarealsobroughttothesurfaceinthecoalminingprocess,andtheseareleftassolidwastes.\nTheproduction,transportation,anduseoffossilfuelsaretoblamefortheeffectsofpollutionontheenvironment.Thenwhatshouldwedo?Weshouldsparenoefforttoimproveourenvironment.Pleasesaveenergyandusefewerfossilfuelsinourdailylives.