选修6unit4公开课

①Whatarethey?②Whatarethesebuildingsmadeof?③What’stheuse?greenhouse/glassAgreenhouseisusedfor_____________,especiallyduring____weather.growingplantscold_____theheatfromthesunkeepsitfrom_____________theairupHowdoesagreenhousework?trapsescapingheatsNewWords•RandomPhenomenon•SubscribeFuel•DataCatastrophe•Trendopposed胡乱的现象同意燃料数据大灾难趋势反对的FastReading1.Whowrotethemagazinearticle?Thenameofthemagazine?2.Whatismainlydiscussedinthepassage?3.Whatarethenamesofthethreescientistsmentionedinthearticle?SkimmingSkimthetitle:THEEARTHISBECOMINGWARMER–BUTDOESITMATTER?Whatisthemaintopic?A.Theearth.B.Globalwarming.C.Becomingwarmerdoesn’tmatter.★★Wheredoesthisarticlemostprobablycomefrom?A.NewspaperB.NovelC.MagazineWhowrotethearticle?Whatisthenameofthemagazine?Skimthefirstparagraph:SophieArmstrongEarthCareWhatarethenamesofthethreescientistsmentionedinthearticle?DrJaniceFoster,CharlesKeeling,GeorgeHambley3.Whatismainlydiscussedinthepassage?A.Whathascausedtheglobalwarmingandwhetheritmatters.B.Whateffectsoftheglobalwarmingwillbe.C.Howserioustheglobalwarmingcouldbe.D.Whattheglobalwarmingis.Theorganizationofthearticle:IntroductionAtitleBodyConclusionSkimthebodypart(7paras):Para.1Para.2-3IIIPara.4-6IIIPara.7IVIntroductionBodyConclusionMatchthemainideaofeachpart:•Explainhowglobalwarmingcomesabout.•Twodifferentattitudesamongscientiststowardstheconsequencesofglobalwarming.•Introducetheproblemofglobalwarming.•Giveawarningandraiseaquestionforthereaderstothinkover.I(1)II(2-3)III(4-6)IV(7)PartII(Para2-3)1.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.2.JaniceFosterbelievesthatshecanmeasurethefutureglobalriseintemperature.3.GreenhouseGasesaretotallybad.FTF1.Greenhouseeffectisanaturalp_______.______amountsofGreenhousegasesintheatmosphere.Buttheproblembeginswhenweaddhugeqofextracarbondioxidetotheatmosphere.Therefore,moreheatenergyistintheatmospherecausingtheglobaltemperatureto_________.FillintheblanksaboutthecausesofGreenhouseeffect.henomenonuantitiesrappedgoupSmallPara4.thelevelsofcarbondioxidehaveincreasedgreatlyoverthelast100to150years1.Whomadeaccuratemeasurementsoftheamountofcarbondioxide?2.Howmuchhasincreased?CharlesKeelingThecarbondioxideintheatmospherewentupfromaround315partstoaround370partspermillion.Para5.Howhighwillthetemperaturego?Theamountofwarmingcouldbeaslowas1to1.5degreesCelsius,butitcouldbeashighas5degrees.WhatdoDr.JaniceFosterandthescientistGeorgeHambleythinkabouttheconsequencesofglobalwarming?Dotheyagreewithoneanother?Para6Theydon'tagreewitheachother.Dr.JaniceFosterthinksitisserious.GeorgeHambleythinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences.Doesglobalwarmingmatter?PositiveeffectsNegativeeffects1.causethesealeveltorise2.severestorms3.floods4.droughts5.famines6.thespreadofdiseases7.disappearanceofspeciesPositiveeffectsNegativeeffects1.causethesealeveltorise2.severestorms3.floods4.droughts5.famines6.thespreadofdiseases7.disappearanceofspeciesPositiveeffectsNegativeeffects1.makeplantsgrowquicker2.cropswillproducemore3.agreaterrangeofanimals4.makelifebetterHowtoreducegreenhousegases?Theearthisbecomingwarmer,doesitmatter?