人教版选修6unit4reading优质PPT.ppt
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人教版选修6unit4reading优质PPT.ppt
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Doyouknowanykindofenergyresource?
Warminguplights,television,computer,washingmachine,hairdryer,camera,windcoaloilnuclearpowersolarpowerwater4RenewableEnergyRenewableenergysources,suchasthesun,wind,rain,andplantmatter,naturallyandcontinuallyrenewthemselves.EnergysourcesRenewable/non-renewableWindCoalOilNuclearpowerSunWaterrenewable可再生的renewablerenewablenon-renewable不可再生的non-renewablenon-renewableWhatisthegreenhousemadeandusedfor?
GreenhouseAgreenhouseismadeofglassandisusedforgrowingplants,especiallyduringcoldweather.GreenhouseEffect温室效温室效应8traptheheatfromthesunkeepitfromescapingwarmAgreenhouseHowdoesitwork?
9Howdoesthisglobalwarmingcomeabout?
Manburnsfossil_-producehugequantitiesofgreenhousegases,esp._-thegasestraph_fromthesunandthereforew_theearth.fuelscarbondioxideheatwarmGreenhouseGreenhouseEffectGreenhousegasesGlobalwarmingreasonsArisingpopulationTheuseofenergyGreenhousegasesBurningoffossilfuels(coal,oilandnaturalgas)AgriculturalindustryDestructionofforests11Skimthearticle:
Whatarethenamesofthethreescientistsmentionedinthearticle?
Whowrotethearticle?
Whatisthenameofthemagazine?
FastReading12Whatisthewritingstyle?
A.Expositive(说明文明文)B.Practical(应用文应用文)C.Argumentative(议论文议论文)D.Narrative(记叙文记叙文)Theorganizationofanexpositiveessay:
IntroductionAtitleBodyConclusionPara.1Para.2-6Para.713Lookthroughthemaintext:
Para.1Para.2-5IIIIIIPara.6IIIIIIPara.7IVIVIntroductionBodyConclusion14Matchthepartswiththemainideas:
Explainhowglobalwarmingcomesabout.Listtwodifferentattitudesamongscientiststowardsglobalwarming.Introducethetopicofglobalwarming.Itsuptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.Part1Part2Part4Part315Matchthepartswiththewritingskills:
Usingaquestion,leavingreaderstothinkovertheissueRaisingaquestionGivingexamples,makingcontrast(comparison)Givingexamples,usinggraphs,explanationPart1Part4Part3Part216The2graphsareusedtoexplainpointsbyproviding.evidenceevidenceorargument?
Readthe2graphs:
Detailedreading17The1stgraphshowstheglobaltbetween1860and.ThetemperatureianddecreasedoverthisperiodbutonthewholeitibyaroundonedegreeFahrenheit.Duringthistime,theearthreacheditsltemperatureinabout1910anditshighestin.Therewasasteadyincreaseinthetemperatureduringthe20yearsafter1980.Wecanseefromthegraphthattheearthhasbecomewsinceearlylastcentury.emperature2000ncreasedncreasedowest2000armerDetailedreadingReadsomethingmoreaboutthe2graphs:
18The2ndgraphshowstheamountofcdintheatmospherefromto1997.TheCO2csteadilyioverthisforty-yearperiod.Itwentupfrom315topartspmillion.arbonioxide1957ontentncreased370erTip:
Whilereadingagraph,youdbetterpayattentiontothenumbers.Detailedreading19TrueorTrueorffalse?
(alse?
(P2P2)ReadingComprehension21.Thetemperatureinthelastcenturydidntseemtoincreasemuch.2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.3.JaniceFosterbelievesshecanmeasurethefutureglobalriseintemperature.4.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.5.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.6.Itisclearwhattheeffectsofglobalwarmingwillbe.20Whatdothe3scientiststhinkaboutglobalwarming?
Dotheyagreewithoneanother?
Readthearticlecarefully.Theydontagreewithoneanother.Detailedreading3.Whatdotheythinkaboutglobalwarming?
Theydontagreewitheachother.Dr.JaniceFosterthinkstheeffectsofglobalwarmingcouldbeveryserious.GeorgeHambleythinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences.CharlesKeelingbelievesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide.UsinglanguageWhatcanwedoaboutglobalwarming?
Turna(n)_offwhenyourenotusingit.Putonmoreclothesinsteadofturningupthe_Walkor_insteadoftakingmotorvehicles._cans,bottles,plasticsandnewspapers.Buythingsmadefrom_.Buyproductsthatareeconomicalwith_._inyourgardenoryourschoolyard.Talkwithyourfamilyandfriendsabout_.electricalapplianceheatrideabikeRecyclerecycledmaterialsenergyPlanttreesglobalwarming25Theearthisbecomingwarmer.Inyouropinion,doesitmatter?
Discussion:
A:
Weshalldosomethingaboutglobalwarming.B:
Weshalldonothingaboutglobalwarming.Yourreasons26AssignmentAssignmentTalkabouttheeffectsofglobalwarming.Thinkaboutwhatindividualsshoulddo.Callonpeopletoprotecttheearthanddesignaslogan(口号)口号).Everyonecanmakeadifference
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