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WordsstudyGlobalwarmingUnit41.temperature温度2.onedegreeFahrenheit华氏一度3.humanactivities人类活动4.phenomenon现象5.Consume消耗/耗费6.fossilfuels矿物燃料7.catastrophe大灾难8.Source来源，源头•9.“greenhouse”gases温室气体•10.atmosphere大气•11.methane甲烷，沼气•12.supply供应•13.trap困住，使。。。陷于。。。•14.escape逃脱，逃开。。。•1.Dependon…•2.indailylife•3.usesth.for….•4.thinkof/about…..•5.comefrom….•6.runout•7.bemadeof/from….•8.trapsth.from…..•9.keepitfromescaping•10.heatupenergysourcesWedependonenergytodomanythingsinourdailylives.Forexample,energylightsourcitiesandheatsourbuildings.Makealistofthingsthatuseenergyinyourhome,inyourschool,oranyotherplacesyoucanthinkof.thingsthatuseenergyinourlifeheatinghairdryerfridgetelevisionthingsthatuseenergyinourlifewashingmachineelectromagnetic(电磁ovenelectricfanstovelightthingsthatuseenergyinyourhomemicro-waveovencassetteplayerheatingtelevisionhairdryervideoplayerfridgecomputerwashingmachinestoveDoyouknowhowenergyisproduced?Howmanysourcesofenergycanyoulist?Windenergyisusedaspowertoproduceelectricity.Windmills(风车）whereelectricityisproducedbyburningcoals.Thecoalpowerstationsinwhichoilisrefinedandmadepure.TheOilRefineries（精炼厂））afacility（设施；设备）designedtoconvert使转变；转换nuclearenergyintoelectricity.Anuclearpowerplantontheroofofahouseonabrightsunnydayareusedtocollectsolarenergy,makingyourhousewarmorheatingyourwater.Solarpanels面板areusedtokeepbackwaterandraiseitslevelforirrigationorforproducingelectricity,etc.TheHydro（水力发电的）-electricdamstypesofenergysource1。renewable2。non-renewable”Anenergysourceis“renewable”whensuppliesofitneverrunoutand“non-renewable”whenonedaytheyrunout.Whichofthefollowingenergysourcesarerenewableandwhicharenon-renewable?Discussionwindenergyrenewablesolarenergyrenewablehydroelectricpowerrenewablegeothermalenergy地热的renewabletidalenergyrenewablebiomassenergy生物团能量renewableCoalOilNaturalgasUranium[化]铀(nuclearenergy)FossilfuelsNon-renewablecarbondioxideFossilFuel(矿物燃料)coaloilgasglobalwarming●●●●●●produceWhatarefossilfuels?•FossilfuelsareAncientanimalandplantmaterialbelowthesurfaceoftheearthwithahighcarboncontent,suchascoal,oilandnaturalgas,whichcanbeburnttoproduceenergy.Theyarealsoknownasnon-renewableenergybecauseoncetheyarerunoutof/runout,theycannotberenewed.nuclearpowerplantnon-renewableanoilrefinery(精炼厂)non-renewablecoalpowerstationnon-renewablenaturalgasnon-renewableuraniumOre(铀矿石)non-renewable•Weplantvegetablesalltheyearroundinthesouth.However,inthenorth,itisdifficultforpeopletoplantvegetablesinwinterbecauseofcold.Doyouthinkpeopleinthenorthplantvegetables?•Iftheydo,Where?①Whatarethey?②Whatarethesebuildingsmadeof?③What’stheuse?greenhouse/glassAgreenhouseisusedfor_____________,especiallyduring____weather.growingplantscold1.Haveyoueverseenagreenhouse?ismadeofglassusedforgrowingplants,especiallyduringcoldweather.2.Howdoesthegreenhousework?Theairinsidewaswarmbecausetheglasstraps(挡住,吸收)theheatfromthesunandkeepsitfromescaping(逃跑).Thismakesthegreenhouseheatup(热量上升)andsotheplantscangrowthroughout(在…期间)thecoldperiod._____theheatfromthesunkeepsitfrom_____________theairupHowdoesagreenhousework?trap…from…:keepsthinaplace存住来自…的…trapsescapingheatsIntheatmospheresurroundingtheearththerearegases,whicharecalled“greenhousegases”.methanewatervaporcarbondioxideWhatdoyouthinkgreenhousegasesdo?Greenhousegases_____theheatofthesunandtherefore______theearth.Itisknownas__________________.Nowadaysourearthisbecoming_____________________.greenhouseeffecttrapwarmwarmerandwarmerTheEarthisBecomingWarmer--ButDoesItMatter?地球在变暖——要不要紧？Reading