人教版高中英语选修六UNIT4reading课件.ppt

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1、Unit4GlobalWarmingWindenergyisusedaspowertoproduceelectricity.Windmillswhereelectricityisproducedbyburningcoals.Thecoalpowerstationsinwhichoilisrefinedandmadepure.TheOilRefineriesafacilitydesignedtoconvertnuclearenergyintoelectricity.Anuclearpowerplantontheroo

2、fofahouseonabrightsunnydayareusedtocollectsolarenergy,makingyourhousewarmorheatingyourwater.SolarpanelsTheyareusedtokeepbackwaterandraiseitslevelforirrigationorforproducingelectricity,etc.TheHydro-electricdamswindcoaloilnuclearsolarwater1.Haveyoueverseenagreen

3、house?ismadeofglassusedforgrowingplants,especiallyduringcoldweather.GlobalwarmingGreenhousegasestrappedtheheatfromthesun,whichcausesthetemperatureofearthgoesup.ScanningWhatismainlydiscussedinthepassage?A.Whathascausedtheglobalwarmingandwhetheritmatters.B.What

4、effectsoftheglobalwarmingwillbe.C.Howserioustheglobalwarmingcouldbe.D.Whattheglobalwarmingis.FastreadingGlancethearticlequicklyandanswerthequestions:Whowrotethemagazinearticle?Whatisthenameofthemagazine?Whatarethenamesofthethreescientistsmentionedinthearticl

5、e?Whatarethetwographsabout?Whofoundouttheamountofcarbondioxideintheatmospherefrom1957to1997?IntensivereadingReadthearticlecarefully.Arethesestatementstrueoffalse?Thetemperatureinthelastcenturydidnotseemtoincreasemuch.Everyonebelievesthatglobalwarmingiscausedby

6、theactivitiesofhumans.JaniceFosterbelievesthatshecanmeasurethefutureglobalriseintemperature.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.Itisclearwhattheeffectsofglobalwa

7、rmingwillbe.TTFTTFDiscussionWhatshallwedoforourhomeabouttheGlobalwarming?