高二英语人教课标版unit4global-warming-reading课件

GlobalwarmingUnit4

Pre-reading:greenhouseWhatisthegreenhouse

made

ofandusedfor?Greenhouseismadeofglass&usedforgrowingplants,especiallyduringcoldweather.GreenhouseEffectGlobalwarmingGreenhousegasestrappedtheheatfromthesun,whichcausesthetemperatureofearthgoesup.GreenhouseGlobalwarmingAretheyallbeneficial?？Comprehending&Talking:TheEarthisBecomingWarmer

--ButDoesItMatter?Whatdotwographsshowus?From1860to2000,theglobal_________hasrisenabout_degreeFahrenheit.temperature1Between____and_____,thecarbondioxidecontentoftheatmospherewentupfromaround________permilliontoaround________permillion.19571997315parts370parts.CharlesKeeling1997

Ⅰ.ComprehendingStructure1)Howmanyparagraphsdoesthereading

2)Makeadivisionofthetext.Readthepassagequickly(3′)textconsistof?Pleasenumberthem.Part1Part2Part3C.Introductionofglobalwarming.(1)(2-5)(6-7)B.Howglobalwarmingcomesabout.A.Listdifferentattitudes.

Whowritesthisarticle?SophieArmstrongofEarthCareWhatroseabout

onedegreeFahrenheit?ThetemperatureoftheearthExplanationPart1(1)Introductionofglobalwarming.Part2(2-5)Howglobalwarming

comesabout?theburningoffossilfuelshumanactivity1._________________2._______________________________CarbondioxideMethaneWhataretheGreenhousegases?1.2.3.WatervaporPart3(6-7)Whataretheeffectsofglobalwarming?arise

inthesealevelSeverestorms,droughts,famines,thespreadofdiseases,andthedisappearanceofspecieseffectsCarbondioxidehascausedtheglobaltemperatureto__________.Anincreaseoffivedegreeswouldbea__________andcouldbe___________.Morecarbondioxideisa__________thing,whichmakescrops__________moreandwillencourage___________________________.goupcatastropheveryseriouspositiveproduceagreaterrangeofanimalspositivenegativeTwoattitudesDr.JaniceFosterGeorgeHambleyWriteaSummaryofthetextinabout30wordsThetextintroducestheproblemof________________,whichismostlycausedby_______activitiesandtheburningof________.Somescientiststhinkthatitwouldbea____________.Butothersthinkitwouldbea________thing.warmingglobalhumanfuelscatastrophepositivefossilIntroductionofglobalwarmingHowglobalwarmingcomesabout(..)Differentattitudes(somethink…others…)Aretheriskstoogreat?Socanyoupredictthefutureoftheglobalwarming?

Let’senjoyavideoofoneprediction.Whatweshoulddotoprotect

ourearth?

1)Discuss:Reducetheburningoffossilfuels2.Planttrees3.Usebagsthatcanberecycled…Part1Part2Part3A.Listdifferentattitudes.B.Howglobalwarmingcomesabout.C.Introductionofglobalwarming.A.Listdifferentattitudes.B.Howglobalwarmingcomesabout.C.Introductionofglobalwarming.(1)(2-5)(6-7)Tim