人教版高中英语选修六UNIT-4-reading课件.ppt

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1、Unit4GlobalWarmingenergysourcesWedependonenergytodomanythingsinourdailylives.Forexample,energylightsourcitiesandheatsourbuildings.Makealistofthingsthatuseenergyinyourhome,inyourschool,oranyotherplacesyoucanthinkof.stovelightthingsthatuseenergyinyourhomemicro-waveovencasse

2、tteplayerheatingtelevisionhairdryervideoplayerfridgecomputerwashingmachinestovethingsthatuseenergyinourlifeheatinghairdryerfridgetelevisionthingsthatuseenergyinourlifewashingmachineelectromagneticovenelectricfanDoyouknowhowenergyisproduced?Howmanysourcesofenergycanyoulist

3、?Windenergyisusedaspowertoproduceelectricity.Windmillswhereelectricityisproducedbyburningcoals.Thecoalpowerstationsinwhichoilisrefinedandmadepure.TheOilRefineriesafacilitydesignedtoconvertnuclearenergyintoelectricity.Anuclearpowerplantontheroofofahouseonabrightsunnydayare

4、usedtocollectsolarenergy,makingyourhousewarmorheatingyourwater.Solarpanelsareusedtokeepbackwaterandraiseitslevelforirrigationorforproducingelectricity,etc.TheHydro-electricdamsAnenergysourceis“renewable”whensuppliesofitneverrunoutand“non-renewable”whenonedaytheywillrunout

5、.Whichenergysourcesonyourlistarerenewableandwhicharenon-renewable?DiscussionWind(windpower)Sun(solarenergy)Water(hydro-electricpower)Plantwaste植物性废物(biomassenergy生物团能量)Hotspringsorgeysers间歇泉(geothermalenergy)Thesea(tidalenergy潮汐能)RenewableAretheyrenewableornon-renewable?w

6、indenergyrenewablesolarenergyrenewablehydroelectricpowerrenewablegeothermalenergyrenewabletidalenergyrenewablebiomassenergyrenewableCoalOilNaturalgasUranium[化]铀(nuclearenergy)FossilfuelsNon-renewablenuclearpowerplantnon-renewableanoilrefinery(精炼厂)non-renewablecoalpowersta

7、tionnon-renewablenaturalgasnon-renewableuraniumOre(铀矿石)non-renewableWhatarefossilfuels?FossilfuelsareAncientanimalandplantmaterialbelowthesurfaceoftheearthwithahighcarboncontent,suchascoal,oilandnaturalgas,whichcanbeburnttoproduceenergy.Theyarealsoknownasnon-renewableener

8、gybecauseoncetheyarerunoutof/runout,theycannotberenewed.1.Haveyoueverseenagreenhouse?ismadeofgla