unit4_global_warming_Reading阅读课件

Unit4GlobalwarmingReading高二人教新课标版选修六Pre-reading1.Haveyoueverseenagreenhouse?ismadeofglassusedforgrowingplants,especiallyduringcoldweather.2.Howdoesthegreenhousework?Theairinsidewaswarmbecausetheglasstraps(挡住,吸收)theheatfromthesunandkeepsitfromescaping(逃跑).Thismakesthegreenhouseheatup(热量上升)andsotheplantscangrowthroughout(在…期间)thecoldperiod.3.WhatareGreenhouseGases?Methane4Ozone51Carbondioxide2Watervapor11Nitrousoxide34.GreenhouseEffectGlobalwarmingGreenhousegasestrappedtheheatfromthesun,whichcausesthetemperatureofearthgoesup.GreenhouseeffectGreenhouseeffectGreenhouseGlobalwarmingTHEEARTHISBECOMINGWARMERBUTDOESITMATTER?Reading1)Howmanyparagraphsdoesthereading2)Makeadivisionofthetext.Readthepassagequickly(3’)textconsistof?Pleasenumberthem.Fast-ReadingMainideasofeachpart:Part1(1)Introduceadebateovertheissueofglobalwarming.raisingaquestionPart2(2-5)Howglobalwarmingcomesabout.givingexamples,usinggraphs,explanationPart3(6)Listtwodifferentattitudesamongscientiststowardsglobalwarming.Part3(7)It'suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.givingexamples,makingcontrastleavingaquestionAretheriskstoogreat?Socanyoupredictthefutureoftheglobalwarming?Whowritesthisarticle?SophieArmstrongofEarthCareWhatroseaboutonedegreeFahrenheit?ThetemperatureoftheearthCarefulreadingPart1(1)Introductionofglobalwarming.2.___________________________1.___________________Part2(2-5)Howglobalwarmingcomesabout?theburningoffossilfuelshumanactivityCarbondioxideMethaneWhataretheGreenhousegases?1.2.3.WatervaporPart3(6-7)Whataretheeffectsofglobalwarming?ariseinthesealevelSeverestorms,droughts,famines,thespreadofdiseases,andthedisappearanceofspeciesMakeplantsgrowfastereffectsReadandanswerthequestions.1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?2.Whatarethenamesofthethreescientistsmentionedinthearticle?1.SophieArmstrong,EarthCare.2.DrJaniceFoster,CharlesKeeling,GeorgeHambley.3.Whatdothethreescientiststhinkaboutglobalwarming?believesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreaseincarbondioxide.Dr.JaniceFosterGeorgeHambleyCharlesKeelingthinkstheeffectsofglobalmwarmingcouldbeveryserious(严重的).thinksglobalwarmingwillbemildwithfewbadenvironmentalconsequences.ThedifferentideasbetweenDr.JaniceFoster&GeorgeHambleyDr.JaniceFosterGeorgeHambleyCarbondioxidehascausedtheglobaltemperatureto__________.Anincreaseoffivedegreeswouldbea___________andcouldbe_____________.Morecarbondioxideisa__________thing,whichmakescrops__________moreandwillencourage______________________________.goupcatastropheveryseriouspositiveproduceagreaterrangeofanimals4.Whatarethetwographsabout?ThefirstgraphshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.Thesecondgraphshowsthecarbondioxidecontentintheatmospherefrom1957to1997.fromaround315partspermilliontoaround370partspermillionHugequantitiesofextracarbondioxideFrom1957to19975.Whatisthemaintopicofthearticle?Globalwarming/thewarmingoftheearth.1.Whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1977?A.Dr.JaniceFoster.B.CharlesKeeling.C.GeorgeHambley.D.SophieArmstrong.BChoosethebestanswer.2.WhichofthefollowingisDrJaniceFoster’sopinion?A.Theresultofthetemperatureincreasewillbeserious.B.Theamountofwarmingisnothingserious.C.Weneedn’tworryabouthighlevelsofcarbondioxide.D.Globalwarmingisanaturalphenomenon.A3.WhichofthefollowingisTRUEaccordingtothetext?A.ThetemperatureoftheearthincreasedaboutonedegreeFahrenheitduringthe20thcentury.B.Thecarbondioxidecontentintheairincreasedby70partspermillionfrom1957to1997.C.Allscientistsacceptthedataingraph2exceptCharlesKeeling.D.JaniceFostersaysthatmorecarbondioxidewillmakeplantsgrowfaster.A4.Theauthorprobablyagreesthat________A.actuallyglobalwarmingisgoodforman.B.weshoulddonothingabouttheglobalwarming.C.catastropheswillhappeniftheglobekeepsonwarming.D.alotremainstobefoundoutabouttheeffectsofglobalwarming.DTrueorfalse?1.Thetemperatureinthelastcenturydidnotseemtoincreasemuch.2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.3.JaniceFosterbelievesthatshecanmeasurethefutureglobalriseintemperature.TTF4.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.5.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.6.Itisclearwhattheeffectsofglobalwarmingwillbe.TTFSummaryTrytotalkingeneraltermsratherthanindetails.e.g:Ilearntthattheearthisbecomingwarmer.Ilearntthatglobalwarmingcouldhaveterribleeffectsontheenvironment.…A:Weshalldosomethingaboutglobalwarming.B:Weshalldonothingaboutglobalwarming.DebateWhatweshoulddotoprotectourearth?Discussion:1.Reducetheburningoffossilfuels2.Planttrees3.Usebagsthatcanberecycled…1.Itisarapidincreasewhencomparedtoothernaturalchanges.comparevt.1)比较;对照compare…with…表示“把…与…相比(同类相比)”如：Compareyouranswerswiththoseatthebackofthebooktoseeiftheyareright.把你的答案同书后面的答案对照一下,看看是否正确。Languagepoints2)喻为;比拟compare…to…表示“把…比做…(异类相比,比喻)”如：Man’slifeisoftencompareddoacandle.人生常被比为蜡烛。Myhandwritingcannotbecomparedwithmyfather’s.我的书法不能与我父亲的相比。Shakespearecomparedtheworldtoastage.莎士比亚把人世比做