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WordsstudyUnit4Globalwarming—Reading授课人刘胜丽Whatcausestheglobalwarming?Humanactivityorarandombutnaturalphenomenon?Thinkabout:Carbondioxidecoaloilnaturalgasglobalwarming●●●●●●Why?FossilFuelLookatthefollowingpictures.Whatdothepicturesshow?Humanactivity---burningoffossilfuels.Greenhouseeffect---greenhousegases---weneedthosegases.WeaddhugequantitiesofextracarbondioxidetotheatmospherebyburningFossilfuels.学科网学科网学科网GreenhouseeffectWhataretheeffectsanddisastersofglobalwarming?What’sworse,theglaciers(冰川）oftheSouthPolearebeginningtocrack（破裂）TheglaciersofthePolesarestartingtomeltduetotheincreasingtemperaturescausedbyglobalwarming.tsunamiThesealeveltorise.tornadosSeverestormsdroughtsfaminesthespreadofdiseasesdestructionofspeciesTheEarthIsBecomingWarmer–ButDoesItMatter?ReadingFast-Reading1.What’sthemaintopicofthearticle?It’saboutglobalwarming\thewarmingoftheearth.skimming2.Whowrotethemagazinearticle?Whatisnameofthemagazine?TheyareDr.JaniceFoster,CharlesKeelingandGeorgeHambley.ReadingComprehensionIskimming3.Whathascausedglobalwarming?Humanactivity.4.Whatdoscientiststhinkmakestheearth’stemperaturegoup?Theburningoffossilfuels.skimming5.Howdoes“greenhouseeffect”comeabout?Itcomesaboutwhensmallamountsofgasesintheatmospheretrapheatfromthesunandthereforewarmtheearth.Trueorfalse?(P27)scanningReadingComprehensionII21.Thetemperatureinthelastcenturydidn’tseemtoincreasemuch.2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.3.JaniceFosterbelievesshecanmeasurethefutureglobalriseintemperature.4.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.5.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.6.Itisclearwhattheeffectsofglobalwarmingwillbe.1.Thepurposeofthefirstparagraphisto___.A.introducethewriterB.explainachangeC.introducethetopicD.raiseaquestion2.Thegraphsareusedto_____.A.illustratepointsbyprovidingevidenceB.tellthechangeoftemperatureC.tellthecontentofcarbondioxideintheairD.interestthereadersskimmingReadingComprehensionIII3.Greenhousegasesreferto_______.A.carbondioxideB.theburningoffossilfuelsC.byproductsoftheburningoffossilfuelsD.coal,naturalgasandoil4.Greenhouseeffect_____.A.isanaturalphenomenonB.happenswhenthere’stoomuchcarbondioxideC.doesgreatharmtohumanbeingsD.makeslifeforhumanbeingsbetterscanning5._____foundouttheamountofcarbondioxideintheatmospherefrom1957to1997.A.Dr.JaniceFosterB.CharlesKeelingC.GeorgeHambleyD.SophieArmstrong6.WhichofthefollowingstatementsisTrue?A.Burningfossilfuelscausestheglobalwarming.B.Wewillhavemorefoodwithglobalwarming.C.Globalwarmingmeansdisasterstohumans.D.Moregreenhousegaseswillgatherintheatmosphere.CarefulreadingtogetdetailinformationThedifferentideasbetweenDr.JaniceFoster&GeorgeHambley(Groupwork)Dr.JaniceFosterGeorgeHambleyCarbondioxidehascausedtheglobaltemperatureto(1)__________.Anincreaseoffivedegreeswouldbea(2)____________andcouldbe(3)______________.Morecarbondioxideisa(4)__________thing,whichmakescrops(5)_____________andwillencourage(6)____________________________.goupcatastropheveryseriouspositiveproducemoreagreaterrangeofanimalsSumary(1)Getthestudentsmasterthemethodoffast-readingandcareful-reading.(2)Getthestudentsdiscribethemainideaofthepassageusingtheirownwords.(3)Getthestudentslearntolivealow-carbonlife.Homework1.Prepareadebateingroups.2.SurftheInternetformoreinformationaboutglobalwarming.