人教版英语选修6第四单元warmingup和reading课件.ppt

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1、Unit4GlobalWarmingWedependonenergytodomanythingsinourdailylives.Forexample,energylightsourcitiesandheatsourbuildings.Makealistofthingsthatuseenergyinyourhome,inyourschool,oranyotherplacesyoucanthinkof.6studentsagroup.TVFridgeWashingmachineThingsdependingen

2、ergyinoureverydaylifeAirconditionerMicrowaveovenWheredoesallthisenergycomefrom?MakeanotherlistofasmanyresourcesAsyoucan.WindenergyCoalenergyOilenergyNuclearenergySolarenergyhydropowerAnenergysourceis“renewable”whensuppliesOfitneverrunoutand“non-renewable”w

3、henOnedaytheywillrunout.Whichenergysourceonyoulistarerenewableandwhicharenon-renewable?ThinkingrenewableNon-renewablerenewablerenewablerenewablerenewablerenewableNon-renewableNon-renewablerenewablegreenhouseWhythegreenhousecanmaketheplantsgrow?DISCUSSIONIn

4、theatmospheresurroundingtheearththerearegasescalled“green-housegases”.Whatdoyouthinkgreenhousegasesdo?ReadingTheEarthIsBecomingWarmer-ButdoesItMatter?Reading1Readthepassagequicklyandanswerthefollowingquestions.1.Whowrotethemagazinearticle?Whatisthenameofth

5、emagazine?2.Whatarethenamesofthreescientistsmentionedinthearticle?3.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?4.Whatarethetwographsabout?1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?SophieArmstrong.EarthCare.2.Whatarethenamesof

6、threescientistsmentionedinthearticle?Dr.JaniceFoster,CharlesKeeling,GeorgeHambley.3.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?Therearesomeverydifferentattitudesamongscientiststowardsthisissue.Somethinktheeffectswillbeterrible,whilesomeoth

7、ersBelievethatweshouldnotworryaboutit.4.Whatarethetwographsabout?ThefirstgraphshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.ThesecondgraphshowstheCarbondioxidecontentintheatmospherefrom1957to1997.Reading2Readthepassagecarefullyandjudgew

8、hetherthestatementsaretrueorfalse?1.Thetemperatureinthelastcenturydidn’tseemtoincreasetoomuch.()2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.()3.JaniceFosterbelievesthatshecanmeasurethef