新人教选修6_Unit4_Global_warming-Reading PPT.ppt

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1、高二英语选修6Unit4GlobalWarmingReadingTHEEARTHISBECOMINGWARMER-BUTDOESITMATTER?MadeByXinHuNO.1MiddleSchool艾顺明1.What’stheweatherliketoday？What’stheweatherlikethiswinter?2.Comparedtothepastfewyears,what’stheweatherlikethisyear?3.Doyouthinkthewholeworldisbecomingwarmerandwarmer?QuestionsLook

2、atthetwographsonP26,Whatarethetwographsabout?Temperaturedifferencefromlong-termaverage(1860to2000).5.Whatisthemaintopicofthearticle?Globalwarming/Thewarmingoftheearth.Itisaboutthecarbondioxidecontentintheatmospherefrom1957to1997.Graph1:Graph2:Iftheworldisreallybecomingwarmer?Doesitmatte

3、r?FastReading1.Readthetextandtrytogetthemainideaofeachparagraph.Skimthetextandsumupthemainideaofeachparagraph.Para.1Para.2Para.3Para.4Para.5Para.6Para.7A.Thecauseoftheearth`sbecomingwarmerB.TheconsequenceofburningfossilfuelsC.TheincreaseofcarbondioxideD.GlobalwarmingwillgoonE.Puzzlesabo

4、utglobalwarmingF.DifferentattitudestoglobalwarmingG.AnintroductiontothepassageGABCDFECarefulReadingReadthearticlecarefullyandfinishEx.2onPage27Trueorfalse1.Thetemperaturelastcenturydidn’tincreasemuch.()2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.()3.JaniceFosterbe

5、lievesthatglobalwarmingiscausedbyburningfossilfuels.()4.Naturalgasisagreenhousegas.()5.Carbondioxideisabyproductofburningfossilfuels.()FFTFT6.PeopleacceptCharlesKeeling’sdatabecausehetookaccuratemeasurements.()7.Floodingcouldbeoneoftheeffectsoffutureglobalwarming.()8.GeorgeHambleybeliev

6、esscientistsarejustguessingabouttheeffectsofglobalwarming.()9.GeorgeHambleyisworriedabouttheeffectsofcarbondioxideonplantgrowth.()10.Itisclearwhattheeffectsofglobalwarmingwillbe.()TTTFFDiscussion1:Howhastheglobalwarmingcomeabout?(para2.3)HumanactivityburningoffossilfuelsGreenhousegasesi

7、ncreaseTheearthbecomswarmerDiscussion2:Doweneedgreenhousegasesornot?②Greenhouseeffect---greenhousegases---weneedthosegases.③WeaddhugequantitiesofextracarbondioxidetotheatmospherebyburningFossilfuels.Thecarbondioxidecontentoftheatmospherewentupfrom1957to1997,theearthbecomestooho