Unit4 Global Warming (Warming up and Reading)

WordsstudyGlobalwarmingUnit4Isenergyimportanttous?Whatdoweuseenergyfor?Thingsthatuseenergyaroundusoratanyotherplaces:inductioncookerhairdryerwaterheaterCarbondioxideFossilFuel(矿物燃料)energycoaloilnaturalgasglobalwarming●●●●●●Howdowegetenergy?Whatisglobalwarming?Theearthisbecomingwarmer.Whatcausesglobalwarming?greenhousegases(carbondioxide)burningoffossilfuelshumanactivityHowdoesgreenhouseeffecttakeplace?Agreenhouseismadeofglassandisusedforgrowingplants,especiallyduringcoldweather.Whatisagreenhousemadeofandusedfor?WINTER?trapstheheatfromthesunkeepsitfromescapingheatupAgreenhouseHowdoesitwork?GreenhouseeffectIntheatmospheresurroundingtheearth,greenhousegases(mainlycarbondioxide)trapheatfromthesun.Therefore,theearthisbecomingwarmerandwarmer.–ButDoesItMatter?’scheckit:Whowrotethearticle?Whatisthenameofthemagazine?Whatisthemaintopic?SophieArmstrongEarthCareGlobalwarming(P27)21.Thetemperatureinthelastcenturydidn’tseemtoincreasemuch.2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.3.JaniceFosterbelievesshecanmeasurethefutureglobalriseintemperature.4.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.5.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.6.Itisclearwhattheeffectsofglobalwarmingwillbe.（粗体）?2.Whatarethediagramsfor?3.Whatisthepurposeofthelastparagraphofthearticle?ThirdReading（粗体）?Tointroducethetopic.Toillustrate(阐述)pointsbyprovidingevidence.2.Whatarethediagramsfor?ThirdReading(B2)TaskI:causes;effectsTaskII:1.onedegree;2.humanactivity;3.heat;4.cooler;5.carbondioxide;6.catastrophe;7.environmentalconsequences;8.positivewhichscientist’sopiniondoyouagreewith?Listthepositiveornegativeeffectsofglobalwarming.Discussion1.causethesealeveltorise2.severestorms3.droughts4.famines5.thespreadofdiseases6.disappearanceofspeciesPositiveeffectsNegativeeffects1.makeplantsgrowfaster2.cropswillproducemore3.agreaterrangeofanimals4.makelifebetterGeorgeHambleyThankyou!