the-earth-is-becoming-warmer阅读公开课PPT课件

-,1,-,2,-,3,-,4,-,5,TheearthisbecomingwarmerButdoesitmatter?,Reading,hot!,-,6,Lookatthetitleandthestructureofthearticle.,NewspaperB.NovelC.Magazine,Guess,-,7,FeaturesofThisMagazineArticle,1,title,2,openingparagraph,3,twographs,4,maintextintwocolumns,-,8,Lookatthetitleandthestructureofthearticle.,NewspaperB.NovelC.Magazine,-,9,-,10,Whatisthearticlemainlyabout?,-,11,“Sohowhasthiscomeaboutanddoesitmatter?”,TheMainIdea,-,12,Readthetitleandtheopeningparagraph,thenanswerthefollowingquestions:,1.Whowrotethearticle?,2.Whatisthenameofthemagazine?,TaskOneSkimming,FastReading,-,13,SophieArmstrong,EarthCare,1.Whowrotethisarticle?,2.Whatisthenameofthemagazine?,-,14,Whatarethenamesofthethreescientistsmentionedinthearticle?,DrJaniceFoster,CharlesKeeling,GeorgeHambley,-,15,1,WhatisGraphOneabout?,2,WhatsaboutGraphTwo?,3,Isitacoincidencethatbothgraphsshowtheincrease?,4,Whatcausedthemtoincrease?,TaskTwoDiscusion,Lookattwographs,thenanswerthefollowingquestions:,-,16,Graph1showsthetemperaturedifferenceonaveragefrom1860to2000.,Graph2isaboutthecarbondioxidecontentintheatmospherefrom1957to1997.,-,17,Carefulreading,Howhasglobalwarmingcomeabout,CharlesKeelingsmeasurements,Data,Differentattitudes,Para.1,Para.2,para3,Para.4,Para.5,Conclusion,Para.6,Humanactivityornaturalphenomenon,-,18,Whathascausedglobalwarming?,Para.1,-,19,Whatcanwelearnfromgraph1?,Wecanseeclearlyfromthegraphthat.,-,20,2.TranslatethewholeparagraphintoChinese.毫无疑问，地球是在变暖，而地球变暖正是人类活动导致而成的，并非是一种无规律的自然现象。,-,21,Para.2,Illustratecauses/reasonsbygivingexamples,-,22,Tobeginwith,theincreaseoftheearthstemperatureisdueto_.,theburningoffossilfuels,-,23,Inaddition,somebyproductsoftheburningprocessarecalled_,themostimportantoneofwhichis_.,“greenhouse”gases,carbondioxide,-,24,greenhouseeffect,-,25,Carbon-dioxide,-,26,ThegreenhousegasesincludeCarbon-dioxide,methane,watervapour.,T,-,27,Whatdoyouthinkofthegreenhouseeffect?,Greenhouseeffectisnecessaryforus.Buttoomanygreenhousegaseswillcausetheglobetobetoowarmer.,GroupDiscusion,-,28,CharlesKeelingsmeasurements,Para.3,PeopleacceptCharlesKeelingsdatabecausehetookaccuratemeasurements.,TorF,T,-,29,Thegraphshowsthat,CharlesKeeling,1997,-,30,WhatdoesDr.JaniceFostersay?,Para.4,Data,-,31,Shesaysthatoverthenext_yearstheamountofwarmingcouldbeaslowas_to_degreesCelsius,butitcouldbeashighas_degrees.,100,1,1.5,5,-,32,DrJaniceFoster,GeorgeHambley,scientistsaredebatingoverthepossibleeffectsofgreenhousegases.Pleaseexpresstheirdifferentopinions.,Para.5,Differentattitudes,-,33,AttitudestotheRise,The_thatthetemperatureincreasesbyfivedegreeswouldbea_anditcouldbevery_.,Weshouldnotworryaboutit.Anywarmingwillbe_withfewbad_.Itisactuallya_thing.,trend,serious,mild,environmental,positive,JaniceFoster,GeorgeHambley,catastrophe,consequences,-,34,WhatWillhappen?,encourageagreaterrangeofanimals,ariseofseveralmetersinthesealevel,severestorms,droughts,faminesthespreadofdiseasesdisappearanceofspecies,makeplantsgrowquickermakecropsproducemore,acatastrophe,apositivething,-,35,Para.6,conclusion,Itisclearwhattheeffectsofglobalwarmingwillbe.,TorF,F,Usequestions,leavingreaderstothinkovertheissue,-,36,Title_,Theopeningpara.:raisingaquestion,graph2,Para2,3:_,Para4,5_,Para6:conclusion,graph1,Theearthisbecomingwarmer,-Butdoesitmatter?,causes,Givingexamples,usinggraphs,explanation.,differentattitudes,-,37,Debate,A,B,A:Weshalldosomethingaboutglobalwarming.,B:Weshalldonothingaboutglobalwarming.,Theearthisbecomingwarmerdoesitmatter?,-,38,Idea-sharing,Doesitmatter?,Debate,-,39,Whatcanwedoaboutglobalwarming?,-,40,Ononehand,weshouldprotectourenvironment.Weshouldmakeeffortstocontrolallkindsofpollution.,-,41,Ontheotherhand,weshouldsaveenergyandmakefulluseofeverybitofenergy.,-,42,-,43,Writeacompositionafterwatchingthevideo.,Findoutthedifficultpointsinthetext.,Homework,-,44,Saveourearth,saveourselvesThevideowantstotellusthattheearthisgetting_,andwhenwefeelit,_.Peo