最新unit4-global-warming-Reading阅读课件课件ppt.ppt

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1、unit4-global-warming-Reading阅读课件Unit4GlobalwarmingReading高二人教新课标版选修六Pre-reading2.Howdoesthegreenhousework?Theairinsidewaswarmbecausetheglasstraps(挡住,吸收)theheatfromthesunandkeepsitfromescaping(逃跑).Thismakesthegreenhouseheatup(热量上升)andsotheplantscangrowthroughout(在…期间)thecoldperiod.3.WhatareGre

2、enhouseGases?Methane4Ozone51Carbondioxide2Watervapor11Nitrousoxide34.GreenhouseEffectGlobalwarmingGreenhousegasestrappedtheheatfromthesun,whichcausesthetemperatureofearthgoesup.GreenhouseeffectGreenhouseeffectGreenhouseGlobalwarmingAretheyallbeneficial?？THEEARTHISBECOMINGWARMERBUTDOESITMATTER

3、?Reading1)Howmanyparagraphsdoesthereading2)Makeadivisionofthetext.Readthepassagequickly(3’)textconsistof?Pleasenumberthem.Fast-ReadingMainideasofeachpart:Part1(1)Introduceadebateovertheissueofglobalwarming.raisingaquestionPart2(2-5)Howglobalwarmingcomesabout.givingexamples,usinggraphs,explana

4、tionPart3(6)Listtwodifferentattitudesamongscientiststowardsglobalwarming.Part3(7)It'suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.givingexamples,makingcontrastleavingaquestionAretheriskstoogreat?Socanyoupredictthefutureoftheglobalwarming?Whowritesthisarticl

5、e?SophieArmstrongofEarthCareWhatroseaboutonedegreeFahrenheit?ThetemperatureoftheearthCarefulreadingPart1(1)Introductionofglobalwarming.2.___________________________1.___________________Part2(2-5)Howglobalwarmingcomesabout?theburningoffossilfuelshumanactivityCarbondioxideMethaneWhataretheGreen

6、housegases?1.2.3.WatervaporPart3(6-7)Whataretheeffectsofglobalwarming?ariseinthesealevelSeverestorms,droughts,famines,thespreadofdiseases,andthedisappearanceofspeciesMakeplantsgrowfastereffectsReadandanswerthequestions.1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?2.Whatarethenameso

7、fthethreescientistsmentionedinthearticle?1.SophieArmstrong,EarthCare.2.DrJaniceFoster,CharlesKeeling,GeorgeHambley.3.Whatdothethreescientiststhinkaboutglobalwarming?believesitistheburningofmoreandmorefossilfuelsthatisresultinginabigincreasein