Book6-Unit4-Global-Warming-(Reading)-精品课件

Unit4GlobalWarmingStep1:Lead-in(EarthSong—byM.J.)Now,ourhome--theearthisfacingmanyterribleproblems…Whatishappeningtotheearth?airpollutionwaterpollutionflooddroughttoomanytreesarecutdown=deforestationWhichisthemaintopicinthisunit?globalwarmingWhatisglobalwarming?Whatcausedglobalwarming?Whatcanwedoaboutglobalwarming?Reading(P.26):THEEARTHISBECOMINGWARMER—BUTDOESITMATTER?hot!!!Learning&teachingaims:1.Todevelopsomereadingabilities.2.Tolearnsomekeywordsandphrases.3.Todevelopthesenseofenvironmentalprotection.Step2:CheckYourPreview(keywords)1.化石燃料2.副产品3.温室效应1.fossilfuels2.byproduct3.greenhouseeffect4.温室气体5.甲烷，沼气6.自然现象4.greenhousegases5.methanen.6.naturalphenomenonStep2:CheckYourPreview(usefulpharses)1.发生;造成2.大量的3.上升;增长;升起4.导致1.comeabout2.quantitiesof3.goup4.resultin5.同意;赞成;订购6.反对……7.增加，聚集8.继续5.subscribeto6.beopposedto7.buildup8.keeponStep3:Pre-readingGuessfromthetitleandthetwographs:Whatmaybetalkedaboutinthepassage?A.ThecauseoftheglobalwarmingB.ThephenomenonoftheglobalwarmingC.Itdoesn’tmatterthattheearthisbecomingwarmerD.BothAandBStep4:FastReading(formainidea)Part1c.anintroductionofglobalwarmingPart2Part3Part4d.Howglobalwarmingcomesabout?a.twodifferentattitudestowardsglobalwarmingb.whetherpeopleshoulddosth.aboutglobalwarming(Para__)(Para__to_)(Para__)(Para__)125671)Howmanyparagraphsdoesthereadingtextconsistof?Pleasenumberthem.2)Makeadivisionofthetext.Step5:CarefulReading(fordetailedinformation)1.Whowrotethemagazinearticle?2.Whatisthenameofthemagazine?3.What’sthemeaningoftheword“explore”inLine.4?A.toexamineaproblemcarefully.B.toansweraproblemC.tovisitsomewhereSophieArmstrongEarthCarePart1(Para.1):anintroductionPart2(Para.2-5):thecauseofglobalwarming______offossilfuelshumanactivity__________gasesareproducedanaturalphenomenoncalled____________________heatfromthesunTheearthis________burninggreenhousegreenhouseeffecttrapwarmedReadpart2carefullyandanswer:Whatisthecauseofglobalwarming?Whoistoblamefortheglobalwarming?Humanactivity?Ornaturalphenomenon?Part3(Para.6):twodifferentattitudesBadeffectsGoodeffectspessimisticoptimistic•1.thesealeveltorise•2.severestorms风暴•3.floods•4.droughts干旱•5.famines饥荒•6.thespreadofdisease•7.thedisappearanceofspecies1.makeplantsgrowfaster2.cropswillproducemore庄稼产量更高3.agreaterrangeofanimals物种的丰富4.makelifebetterJaniceFosterGeorgeHambley1.Dotheydrawaconclusionatlast?2.Thewriterprobablythinks________.A.Itmatters.B.Itdoesn’tmatter.Part4(Para.7):Doesitmatter?NoPara.1IPara.7IVHowdoesthewriterwritethepassage?Para.2-5IIPara.6IIIIntroductionBodyConclusionStep6:Post-reading(organization)Itiscertainthattheearthisbecomingwarmer,buttherearesomeverydifferentattitudestowardstheeffectsofglobalwarming.Somepeoplethinkthatifglobaltemperaturecontinuesgoingup,itwouldbeadisaster.Globalwarmingwouldleadtoariseinsealevel;otherspredictweatherchangeslikeseverestorms,droughts,famines,heatwaves,andheavysnowstorms,famines,thespreadofdiseases,andthedisappearanceofspecies.Ontheotherhand,therearethosewhobelievemorecarbondioxideisactuallyagoodthing.Itwillmakeplantsgrowfaster;andencourageagreatervarietyofanimals.agreaterrangeofkeepsoncatastropheresultinThereisnodoubtthatclimateStep6:Post-reading(consolidation)Replacetheunderlinedexpressionswiththewords,phrasesandpatternswehavelearnedinthepassage.positiveStep7:Watchinganddiscussing1.Whatdoesthevideowanttotellus?2.Accordingtowhatwehavelearnedtoday,whatcauseglobalwarming?3.Whatshouldwedoaboutglobalwarming?paperbagswitchoffplasticbagSaveourearth,saveourselvesThevideowantstotellusthattheearthisgetting________________,andwhenwefeelit,____________.People’sactivitiesarethemaincause.___________________________________________________________________________________________________________Whatshouldwedo?AsfarasI’mconcerned,_____________________________________________________________________________________________________.Onlyinthiswaycanwesaveourearth.WritingHomeworkTrytoretellthepassageafterclass.Prepareforlanguagepoints.Thegreenworldwillreturntous!