Unit3EnvironmentalProtectionReadingandThinking課件高中英語人教版選擇性

UNIT3ENVIRONMENTALPROTECTIONLearningObjectivesByreading,explaincausesandnegativeeffectsofglobalwarming;Beawareoftheimportanceofcuttinggreenhousegasesandtakeeffectiveactiontodoit;Byteamwork,presenthowtosolvetheproblemofglobalwarmingingroups.Warming-upWhat`sthemainreasonofit?ReadingandThinkingClimateChangeRequiresTheWorld`sAttention--ByAliceXuWhatisthegraphabout?ThegraphshowsthechangeintheGlobalSurfaceTemperaturebetween1920and2016.TemperatureAnomaly(n.異常)TheGlobalSurfacetemperatureisabnormalandrising.

While-ReadingQ1.What'sthetypeofthistext?（）A.newsreport.B.biography(人物傳記).C.expositoryessay.D.argumentation.CQ2.Inwhichpartofanewspaperormagazinemaywefindthispassage?（）A.entertainmentB.economyC.educationD.environmentD本文是一篇說明文。說明文是客觀說明事物的一種文體，以解說或介紹事物的形狀、性質(zhì)、成因、構(gòu)造、功用、類別等為主要內(nèi)容。說明文主要通過對客觀事物或事理的介紹說明，達到以知識教人的目的，因此說明文以客觀、準確為基本要求，強調(diào)科學性和客觀性。Task1Readfortexttype.(1min)Part.1Part.2Part.3Part.4D.Theproblemofclimatechange.B.ThecausesofglobalwarmingA.TheeffectsoftheriseintemperatureC.ThesolutionstoreducinggreenhousegasemissionsTask2Readformainidea.(2mins)(para.1-2)(para.3)(para.4)(para.5)Thestructureofthepassageanexample/casePart3:effectsPart2:causesPart1:ProblemPart4:SolutionsClimateChange

ProblemSolutionsCausesEffectsEvidence1:____________Evidence2:____________Evidence3:____________problemexample_____________________naturalgreenhouseeffect____________________extremeweather_____________government:___________________:_______function:________________________result:_______(para1-2)(para3)(para4)(para5)Task3Scanning(1min)awarmingocean&atmospheremeltingicerisingseelevelsthedeathofapolarbear(para.2)(para.1)problem:________________________climatechangestarvedtodeathtravellongertofindfoodbearscouldn`thuntlowsea-icelevelsFindthecauseandeffectthatledtothedeathofthepolarbear.Whatistherootcause?Task4CarefulReadingListentoPara.3andfindinformationabout“greenhouseeffect”.__________greenhouseeffect_________greenhouseeffectcausingEarth’ssurfacetemperature______________iftoomuchheatenergyis_______keepingEarth’sclimate_______and__________naturalman-madewarmhabitabletorisequicklytrappedCreateadiagramdescribinghowthegreenhouseeffectworks.HeatreleasedbackintospaceHeatreflectedbacktoEarth’ssurfaceReflectedsunlightAtmosphereSunlightDrawadiagramDiagramsareveryusefultoolsthatcanbeusedtobrainstormideas,mapoutprocesses,showcauseandeffectrelationships,explainanewideaorconcept,andsoon.Whenyoureadanessayaboutscientificissues,youcantrydrawingadiagram,whichwillnotonlyallowyoutovisualisetheproblemsmoreclearlybutalsocanhelpdemonstrateyourcreativethinkingandproblem-solving.Thedifferencebetweennatural

greenhouseeffectandman-madegreenhouseeffectPara4Q1.Whataretheconsequencesoftheglobaltemperaturerise?Q2.Whydidtheauthormentiontheclimatescientists’warning?Theriseinthetemperatureextremeweather&naturaldisastersseriousdamage,costinghumanlivesextremerainstorms,heatwavesledtoresultsexamplesBecauseglobalwarmingneedseveryone’sattention

anditisessentialthatwetakeappropriateactions.ReadPara5andanswerthequestions:1.Whatcanbedonetosolvetheglobalwarming?2.Whatistheauthor’spurposeofwritingthistext?Governmentsneedtomakepoliciesandtakeappropriateactionsandmeasurestoreducegreenhousegasemissions.Asindividuals,weshouldreduceour“carbonfootprint”byrestrictingtheamountofcarbondioxideourlifestylesproduce.Toarouseourawarenessoftheproblemandtoinspirereaderstotakeproperactionstodealwithglobalwarming.Para5ClimateChangeRequiresWorld`sAttention

ProblemSolutionsCausesEffectsEvidence1:____________Evidence2:____________Evidence3:____________problemexample_____________________naturalgreenhouseeffect____________________extremeweather_____________government:________________________:__________________function:__________________________results:_______________________________(para1-2)(para3)(para4)(para5)awarmingocean&atmospheremeltingicerisingseelevelsthedeathofapolarbear(para.2)(para.1)problem:________________________man-madegreenhouseEarth’stemperaturerisesquicklykeepEarth’sclimatewarm&habitalenaturaldisastesseriousdamage,costinghumanlives,economiclossesindividualsmakepoliciesandtakeappropriateactionsandmeasuresreduce“carbonfootprint”Summary

Post-ReadingPost-readingforcriticalthinkingandtalkingGroupDiscussWhatwillyoudotohelp?TakethestairsinsteadoftheelevatorWhatwillyoudotohelp?Don’tlitter!Whatwillyoudotohelp?Gotoschoolorworkbybike/businsteadofdrivingacar.Whatwillyoudotohelp?Whatwillyoudotohelp?UseahandkerchiefinsteadoftissuesWhatwillyoudotohelp?Usereusablebasketsoreco-friendlybagsinsteadofplasticbags;buythingseconomicwithenergy;userecyclablegoodsoritems.Whatwillyoudotohelp?Whatwillyoudotohelp?plantmoretreesWhatwillyoudotohelp?Post-readingforcriticalthinkingandtalkingWhatwillyoudotohelp?Earthprovidesenoughtosatisfyeveryman’sneeds,butnoteveryman’sgreed.—MohandasK.Gandhi地球能滿足人類的需要，但滿足不了人類的貪婪。weshouldcherishwhatwehaveanddowhateverwecantomaketheworldabetterplace,leavingthegreenmountainsandbluewatersforouroffsprings.Onlybychangingthewaywe