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1、Unit4GlobalwarmingWarmingup&ListeningTeachinggoalsEnablethestudentstoknowsomethingaboutenergyresourcesandsomethingthatuseenergy,andlistenfordetailsandcatchthespecificinformationasmuchaspossible.LearningabilitygoalsEnablethestudentstopredictsomeimportantinformationintheprocessoflisteningandencouraget
2、hestudentstotalkaboutthesituationsaccordingtothelisteningmaterials.TeachingimportantanddifficultpointsHowtomakesuretheanswersoflisteningmaterial.TeachingaidsArecorderandcassettetapes,aprojector,andacomputerTeachingproceduresStep1WarmingupDoyouknowanykindofenergyresource?Doyouknowanythingthatuseenerg
3、y?thingsthatuseenergyinahouse(Slideshow:somepicturesofthingsthatuseenergyinahouse.)ThingsthatuseenergySourcesofenergylightstelevisioncassetteplayercomputerfridgestovewashingmachinehairdryervideorecordercoaloilnaturalgaswind(power)sun(solarenergy)water(hydro-electricpower)thesea(tidalenergy)uranium(n
4、uclearenergy)plantwaster(biomassenergy)T:Nowletslookatsomemorepicturesanddecidewhethertheyarerenewableornot.(Slideshow:picturesofsomeformsofenergy)windenergyrenewablesolarenergyrenewablehydroelectricpowerrenewablegeothermalenergyrenewabletidalenergyrenewablebiomassenergyrenewablenuclearpowerplant,no
5、n-renewable(picture)anoilrefinery(精炼厂)，non-renewable(picture)coalpowerstation,non-renewable(picture)naturalgasnon-renewable(picture)uraniumOre(铀矿石)non-renewable(picture)Theelementuraniumdoesnotoccurinpureforminnaturebutisfoundinmineralssuchascarnotite(锐钾铀矿),picturedabove.(picture)Conclusionnon-renew
6、ablecoaloilnaturalgasUraniumfossilfuelsrenewablewind(windpower)sun(solarenergy)water(hydro-electricpower)plantwaste(biomassenergy)hotspringsorgeysers(geothermalenergy)thesea(tidalenergy)SlideshowWhatarefossilfuels?Ancientanimalandplantmaterialbelowthesurfaceoftheearthwithahighcarboncontent,suchascoa
7、l,oilandnaturalgas,whichcanbeburnttoproduceenergy.Alsoknownasnon-renewableenergybecauseoncetheyareusedtheyhavegoneforever;theycannotberenewed.Step2Pre-listeningReadExercise1together:1. Readthestatementsbelowandticktheonesyouagreewith.2. ListentothetapeandansweranddecidewhichstatementProfessorChendoe
8、sNOTagreewith.1. Wellhavetostopusingfossilfuels.2. About90%oftheworldsenergycomesfromfossilfuels.3. Wecanreplacefossilfuelswithrenewablesourcesofenergy.4. Nuclearpowerisagoodsourceofenergy.5. Inthefuture,wellneednewtechnologiestoreplacefossilfuels.6. Itsthedevelopedcountrieswhoaretoblameforproducing
9、mostofthecarbondioxide.3.ListenagainandtickthephrasesthatProfessorChenusestoagreeordisagreewithLiBin.SlideshowExactly.InafraidIdisagreewithyou.That true.That Sght.That correct.I agree.4. Listen for the thirdInafraidnot.Idonthinkso.Noway.Idonagree.timeandfillintheblanks.1. Ourmodernsocietiesdependont
10、heenergywegetfrom2. Itasveryandcheapformofenergy.3. Cantwejustfossilfuelswithsourcesofenergylikesunorwindpower?4. However,whateverwedo,wehavetodoitasa.5. Thecountriesarereallytheonesto.Keys:1.industrial;fossilfuels2.concentrated3。replace；renewable4。globalcommunity5.developed;blameStep3Homework1. Reviewthenewwordsandexpressionsyoulearnedinthisclass.2. PreviewReading.3.4.5.
