高中英语 Unit 4 Global Warming Reading The Earth Is Becoming Warmer But Does It Matter教学课件 新人教版选修6 课件VIP免费

Unit4GlobalWarmingReadingTheEarthisBecomingWarmer--ButDoesItMatter?Explorethecauseofglobalwarming1Page3Learndifferentattitudestowardsglobalwarming2Aims•Gothroughthetextandthinkabouthowtodividethewholepassageaccordingtothemainidea.Paragraph1Paragraphs2&5Paragraph6Part1Part2Part4MainideaofthetextPart3Paragraph7Howhasglobalwarmingcomeabout?Listtwodifferentattitudesamongscientiststowardsglobalwarming.TheearthisbecomingwarmerShouldwedoanything?Theearthisbecomingwarmer.Howhasglobalwarmingcomeabout?Listtwodifferentattitudesamongscientiststowardsglobalwarming.Shouldwedoanything?Part2Para2&5Part3Para6Part4Para7Part1Para1MainideaofthetextPara.1:•Question:Howhasthisglobalwarmingcomeabout?Para.2Itishumanactivitythathascausedthisglobalwarmingratherthanarandombutnaturalphenomenon.Itishumanactivitythathascausedthisglobalwarmingratherthanarandombutnaturalphenomenon.全球变暖正是人类活动导致而成的，而不是随意的自然现象。Howhashumanactivitycausedthisglobalwarming?Howhashumanactivitycausedthisglobalwarming?Lookatthetwographs.Graph1:Graph2:19573151957Fromthetwographs,canyoufindsomerelationshipbetweenthem?Fromthetwographs,canyoufindsomerelationshipbetweenthem?ThemoreCO2,thehighertemperature.WhydoesmoreCO2causehighertemperature?Graph1:Graph2:Greenhousegases_____theheatofthesunandtherefore______theearth.Itisknownas__________________.greenhouseeffecttrapwarmIs“Greenhouseeffect”beneficialorharmfultous?Para.3(Line24-36)carbondioxideFossilFuelcoaloilgas●●●●●●produceWhyisextracarbondioxideaddedintotheatmosphere?Para.3(Line18-23)&Para.5Is“globalwarming”beneficialorharmfultous?Doesitmatter?Para.6NegativeeffectsdisappearanceofspeciesPositiveeffectsmakeplantsgrowquickercropswillproducemoreagreaterrangeofanimalsmakelifebetter1.causethesealeveltorise2.severestorms3.floods4.droughts5.famines6.thespreadofdiseases7.disappearanceofspeciesPositiveeffectsNegativeeffects1.makeplantsgrowquicker2.cropswillproducemore3.agreaterrangeofanimals4.makelifebetter•Game:Runachoo-chootrainGroup1Group2Group31.causethesealeveltorise2.severestorms3.floods4.droughts5.famines6.thespreadofdiseases7.disappearanceofspeciesPositiveeffectsNegativeeffects1.makeplantsgrowquicker2.cropswillproducemore3.agreaterrangeofanimals4.makelifebetterSearchforsomemorematerialsandthinkaboutwhat’syourattitudetowardsglobalwarming.Prepareforthedebateabout“Shouldwedosomethingaboutglobalwarming?”Assignment谢谢！