高二英语教学课件

Reading人教选修6Unit4GlobalWarminggreenhouseWhatisthegreenhousemadeandusedfor?Agreenhouseismadeofglassandisusedforgrowingplants,especiallyduringcoldweather.greenhousegasesWhat’sgreenhouseeffect?greenhouseeffectUnit4GlobalWarmingReadthetextquicklyandfindtheanswertothequestions:Scanning1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?2.Whatarethenamesofthethreescientistsmentionedinthearticle?SophieArmstrong,EarthCare.DrJaniceFoster,CharlesKeeling,GeorgeHambley.3.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?Theydon'tagreewitheachother.Dr.JaniceFosterthinkstheeffectsofglobalwarmingcouldbeveryserious.GeorgeHambleythinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences.CharlesKeelingbelievesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide.4.Whatarethetwographsabout?5.Whatisthemaintopicofthearticle?ThefirstgraphshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.Thesecondgraphshowsthecarbondioxidecontentintheatmospherefrom1957to1977.Globalwarming/thewarmingoftheearth.Skimming1.Thetemperaturelastcenturydidn’tincreasemuch.2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.3.JaniceFosterbelievesthatglobalwarmingiscausedbtheburningfossilfuels.4.Naturalgasisagreenhousegas.5.Carbondioxideisabyproductofburningfossilfuels.Readthepassagecarefullyandjudgewhetherthestatementsaretrueorfalse.FFFTT6.PeopleacceptCharlesKeeling’sdatabecausehetookaccuratemeasurements.7.Floodingcouldbeoneoftheeffectsoffutureglobalwarming.8.GeorgeHambleybelievesscientistsarejustguessingabouttheeffectsofglobalwarming.9.GeorgeHambleyisworriedabouttheeffectsofcarbondioxideonplantgrowth.10.Itisclearwhattheeffectsofglobalwarmingwillbe.FFTTTDetailedreadingHowmanypartscanthetextbedividedinto?Part(Para_toPara_)MainideaPart1(Para_____)introduceadebateovertheissueofglobalwarmingPart2(Para___to___)illustratehowglobalwarmingcomesaboutPart3(Para___to___)listtwodifferentattitudesamongscientiststowardsglobalwarmingPart4(Para___to___)It’suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.12451011DebateGroupA:Weshalldosomethingaboutglobalwarming.GroupB:Weshalldonothingaboutglobalwarming.Getintogroupsofsix.Decidewhichthreeinyourgrouparegoingtoagreewiththestatementandwhichthreearegoingtodisagreewiththestatement.GroupAdiscusswhytheyagreewiththestatement;GroupBdiscusswhytheydisagree.GroupAandBgettogether.Telleachotherthereasonswhyagreeordisagreewiththestatement.Instructions1.Readthepassageagainandreviewthenewwordsandexpressions.2.Preparethedebateingroups.3.SurftheInternetformoreinformationaboutglobalwarming.HomeworkSeeyounexttime!