选修六 unit 4 Global warming 读写课

Unit4GlobalWarmingSavetheearth!SummaryWeshoulddosomethingaboutglobalwarming.Becauseitcouldhavemanynegativeeffectsontheearth.Withthetemperatureincreasing,thepolaricecapseventuallywouldmelt,causingsealevelstorisebyseveralmeters.Coastalandlow-lyingcitieswouldbesubmerged.Somescientistspredictseverestorms,droughts,famines,thespreadofdiseasesandthedestructionsofspecies.WHATCANWEDOABOUTGLOBALWARMING?Whatshallwedoinourdailylife?Task1:Skimthefirstletter,andanswerthequestionsbelow:1.Whoisthewriter?2.Whatisthepurposeoftheemail?/Whatarethetwoconcernsoftheemail?1.Whoisthewriter?2.Whatisthepurposeoftheletter?/Whatarethetwoconcernsoftheletter?AstudentnamedOuyangGuang.①Hisopinionthat,asanindividual,hecanhavenoeffectonenvironmentalproblems.②Gettingsomesuggestionsforwhathecandoaboutglobalwarming;Task2:Readthesecondemail,andanswerthequestion:DoEarthCareagreewithOuyangGuang’sopinionthatindividualscanhavenoeffect?No,EarthCaredosenotagree.Task3:NowscantheletterandlistEarthCare’ssuggestionsinthechartonP30,anddiscusswhetheryoucancarryouteachsuggestion.Givereasonforyouanswers.EarthCare’ssuggestionCanyoucarryit?ReasonEarthCare’ssuggestionCanyoucarryit?ReasonIfyouarenotusingelectricalappliances,turnthemoff.YesSaveenergyIfyou’recold,putonmoreclothesinsteadofturninguptheheat.YesSaveenergyMotorvehiclesusealotofenergy,sowalkorrideabikeifyoucan.YesSaveenergyRecyclecans,bottles,plasticsandnewspapersandbuythingsmadefromrecycledmaterials.YesSaveenergyEarthCare’ssuggestionCanyoucarryit?ReasonGetyourparentsorfriendstobuyproductsthataremadetosaveenergy.YesSaveenergyPlantmoretreesYesPlantsabsorbcarbondioxidefromtheairTalkwithyourfamilyandfriendsaboutglobalwarmingandtellthemwhatyou’velearned.YesTogether,individualscanmakeadifference.CleanupYourButtsandBagsReadTom’sessayaboutlitter.Makeasummaryforeachparagraph,andthenfillinthefollowingtable.Readingtaskon66Firstpara.PointofviewSecondpara.FirstpointoftheargumentEvidenceThirdpara.SecondpointoftheargumentEvidenceFourthpara.PointofviewFirstpara.PointofviewSecondpara.FirstpointoftheargumentEvidenceCigarettebutsandplasticbagsareaseriousenvironmentalproblem.Buttsaresmallbutarestillbadfortheenvironment.1.1600billioncigarettesaresmokedeachyearinChina.Manyofthesebecomelitter.2.4.5trillionbuttsarelitteredeveryyearintheworld.3.Buttsareugly.4.Buttscontaintoxicchemicals.Thesegetintothewatersupply.Thesedecreasethequalityofthewaterandendangerlivingthings.5.Buttstakeupto5yearstobreakdown,sothetoxicchemicalsadduptoagreatamount.Evidence:Thirdpara.SecondpointoftheargumentEvidencePlasticbagsareadangertotheenvironment.1.Plasticbagsaremadefromnon-renewableresources.Iftheyarenotrecycled,theseresourcesarelosttous.2.Inchina,2billionplasticbagsareusedeveryday.3.Plasticbagslastfrom20to1,000yearsintheenvironment.……Fourthpara.PointofviewTheenvironmentwouldbelesspollutedifwecleanedupcigarettebuttsandplasticbags.Thebestsolutionwouldbenottosmokeoruseplasticbagsatall.•ListeninganddiscussingUniversitystudentLiBinisdoingaradiointerviewwithProfessorKeelingaboutusingdifferentsourcesofenergy.Beforeyoulistentothetape,readthestatementsbelowandticktheonesyouagreewith.ThenlistenanddecidewhichstatementProfessorKeelingdoesNOTagreewith.Listening1.consumeenergy2.greenhouse3.greenhousegases4.thegreenhouseeffect5.fossilfuel6.carbondioxide7.renewablesource8.non-renewablesource9.naturalresources10.low-carbonlifestyle•消耗能源•温室•温室气体•温室效应•化石燃料•二氧化碳•可再生资源•不可再生资源•自然资源•低碳生活Relatedwords:1.ListenanddecidewhichstatementProfessorKeelingdoesNOTagreewith.1.Weshouldstopdependingonfossilfuelsforourenergy.2.90%ofourenergycomesfromfossilfuels.3.Wecanreplacefossilfuelswithcleanersourcesofenergy.4.Nuclearpowerisagoodsourceofenergy.Listenagainandwritedowntheenergysourcesthatarementioned.SourcesofenergyNotes•producecarbondioxide•Cheapandconcentratedformofenergy•clean•Notpractical:needhugeareasoflandtoprovideenoughenergy.•clean•notverypracticalwithpresenttechnology•doesnotproducecarbondioxide•dangerousFossilfuelsWindpowerEnergyfromthesunNuclearpower1.First,wemusttrytofindwaysto____________thatdoesnotput________________intotheair.2.Second,wemustproduceproductsthatare_________withenergy.3.Third,wemustaskpeopleto____________theenergytheyuse.ListentoPart2andthenlistthreethingswecandotosaveenergy.fossilfuelscarbondioxideeconomicalcutdownon低碳生活low-carbonlifeSavetheworldLet’sdoitTolivealow-carbonlife，weshould①Ifyouarenotusinganelectricalappliance,turnitoff!②putonmoreclothesinsteadofturninguptheheat.③walkorrideabikeifyoucan.④buythingsmadefromrecycledmaterials.⑤buyproductsthataremadetosaveenergy.⑥planttreesMethodsofprotectingenvironment,doyouagree?BuynewelectricalgoodsBuyenergy-savinggoodsUseair-conditionerwhenyoufeelhotPlanttreesStopusingelectricalappliancesStopusingplasticbagswhenshoppingWriting：Whatcanwedoaboutglobalwarming?1)温室效应的危害2）关于温室效应，我们应该做些什么?3)你的看法.Para1Thepassageisabouthowglobalwarmingcomesaboutandleadthereaderstodecidewhethertheyshouldtakeactionstohelpitornotbasedonthetwodifferentattitudes.过渡句•1）Withtheearthbecomingwarmer,peoplerealizethatglobalwarmingisharmfulforu