英语：Unit4《Global warming》课件(2)(新人教版选修6).ppt

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1、WordsstudyGlobalwarmingUnit4Thingsthatuseenergyaroundusoratanyotherplaces:Inahousewheredoesalltheenergycomefrom?energysourcesWindenergyisusedaspowertoproduceelectricity.Windmills风车whereelectricityisproducedbyburningcoals.Thecoalpowerstationsafacility（设施）design

2、edtoconvert(转化）nuclearenergyintoelectricity.Anuclearpowerplant核电站What’sthedifferencebetweenwindpowerandcoalpower?Windwillneverrunoutwhilecoalisalimitedsource.Whatisrenewableenergyandwhatisnon-renewableenergy?CoalOilNaturalgasUranium（铀）Wind(windpower)Sun(solare

3、nergy)Water(hydro-electricpower)Plantwaste(biomassenergy)Hotspringsorgeysers（间歇泉）(geothermalenergy)Thesea(tidalenergy)FossilfuelsNon-renewableRenewableWhatisagreenhouseusedfor?Howdoesitwork?Pre-readingWhat’sthis?Whowrotethemagazinearticle?Whatisthenameofthemag

4、azine?SophieArmstrongEarthCareWhile-readingScanthepassageandanswerthefollowingquestions:SophieArmstrongEarthCareDr.JaniceFoster2.Whatarethenamesofthethreescientistsmentionedinthearticle?CharlesKeelingGeorgeHambley3.Whatarethetwographsabout?Thefirstgraphshows:T

5、hesecondgraphshows:thetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.thecarbondioxidecontentintheatmospherefrom1957to1997.4What’sthemaintopicofthearticle?Globalwarming/thewarmingoftheearth.Choices.1.Whofoundouttheamountofcarbondioxideintheatmosphere

6、from1957to1977?A.Dr.JaniceFoster.B.CharlesKeeling.C.GeorgeHambley.D.SophieArmstrong..2Theauthorprobablyagreesthat________A.actuallyglobalwarmingisgoodforman.B.weshoulddonothingabouttheglobalwarming.C.catastropheswillhappeniftheglobekeepsonwarming.D.alo

7、tremainstobefoundoutabouttheeffectsofglobalwarming.Trueorfalse?ReadingComprehension1.Thetemperatureinthelastcenturydidn’tseemtoincreasemuch.2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.3.JaniceFosterbelievesshecanmeasurethefutureglobalris

8、eintemperature.4.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.5.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.6.Itisclearwhattheeffectso