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Book6Unit4GlobalwarmingBook6Unit4Globalwarming1Lookatthepictureandwhatcanyouknowfromit?GlobalwarmingLookatthepictureandwhatc2234Whatpeoplearedoing1234Whatpeoplearedoing13lightthingsthatuseenergyinyourhomemicro-waveoventelevisionhairdryervideoplayerfridgecomputerwashingmachinestovelightthingsthatuseenergy4Doyouknowhowenergyisproduced?Howmany

sourcesofenergycanyoulist?Doyouknowhowenergyisprod5Windenergyisusedaspowertoproduceelectricity.

windmillsWindenergyisusedaspowert6Electricityisproducedbyburningcoals.coalpowerstationsElectricityisproducedbybur7大家应该也有点累了,稍作休息大家有疑问的,可以询问和交流8大家应该也有点累了,稍作休息大家有疑问的,可以询问和交流8Oilisrefinedandmadepure.

oilrefineriesOilisrefinedandmadepure.9Nuclearenergyisconvertedintoelectricity.nuclearpowerplantNuclearenergyisconvertedin10piecesofequipmentonaroofthatcollectsenergyfromsunlightinordertoheatwaterandproduceelectricity

solarpanelspiecesofequipmentonaroof11Waterarekeptbackandraiseditslevelforirrigationorforproducingelectricity.hydro-electricdamsWaterarekeptbackandraised12geothermal

(地热的)energyplantElectricityisgeneratedfromhotdryrocks.geothermal

(地热的)energyplant13Whichsourceiscleanerorhealthier?Whichsourceis“renewable”?Thinking:Coaloilwindsunnuclearwaterunderground heat√√√√√√√√Whichsourceiscleanerorhea14non-renewablerenewablenon-renewablerenewable15Carbondioxidecoaloilnaturalgasglobalwarming●●●●●●Why?FossilFuelsCarbondioxidecoaloilnatural161.Doyouknowwhatitis?AgreenhouseWhatisitusedfor?Pre-reading:1.Doyouknowwhatitis?Agre17

Agreenhouseismadeof______andisusedfor______________,especiallyduring_____weather.growingplantsglasscold

Agreenhouseismade182.Howdoesthegreenhousework?2.Howdoesthegreenhousewor19Theairinsidewaswarmbecausetheglasstraps(挡住,吸收)theheatfromthesunandkeepsitfromescaping(逃跑).Thismakesthegreenhouseheatup(热量上升)andsotheplantscangrowthroughout(在…期间)thecoldperiod.Theairinsidewaswarmbecaus203.WhatareGreenhousegases?Intheatmospheresurroundingtheearththerearegases,whicharecalled“greenhousegases”,mainlyincluding____________,andwatervapor(水蒸气).carbondioxide3.WhatareGreenhousegases?In214.GreenhouseEffect

GlobalwarmingGreenhousegasestrappedtheheatfromthesun,whichcausesthetemperatureofearthgoesup.4.GreenhouseEffectGlobalwa22选修六book6unit4reading-the教学讲解课件23TheEarthisBecomingWarmer--ButDoesItMatter?ReadingTheEarthisBecomingWarmerRe24Skimming(略读)Skimthetitle:THEEARTHISBECOMINGWARMER–BUTDOESITMATTER?1.Whatisthemaintopic?

Theearth. B.Globalwarming.

C.Becomingwarmerdoesn’tmatter.

Skimming(略读)Skimthetitle:1.25Skimming2.Thisarticleisfrom________.A.Anenvironmentalmagazine.B.AdiaryC.AnovelD.AstorySkimming2.Thisarticleisfrom263.Whowrotethearticle?

SophieArmstrong

4.Whatisthenameofthemagazine?EarthCare

3.Whowrotethearticle?S27Part1Part2Part3C.Introductionofglobalwarming

(1)(2-5)(6)A.HowglobalwarmingcomesaboutB.ListtwodifferentattitudestowardsglobalwarmingPart4(7)D.Whetherpeopleshoulddosomething

aboutglobalwarmingPart1Part2Part3C.Introduction28SkimmingSkimthebodypart(7paras):Para.1Para.2-5IIIPara.6IIIPara.7IV★★★★IntroductionBodyConclusionSkimmingSkimthebodypart(7p29

Whowritesthisarticle?SophieArmstrongofEarthCareWhathappenedduring20thcentury?ThetemperatureoftheearthroseaboutonedegreeCarefulreadingPart1(1)Introductionofglobalwarming.Whowritesthisarticle?Caref302.___________________________1.___________________Part2(2-5)Howglobalwarmingcomesabout?theburningoffossilfuels

humanactivityCarbon

dioxideMethaneWhatarethegreenhousegases?1.2.3.Water

vapor

2.___________________________313.Whatarethetwographsabout?Graph1showsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.Graph2showsthecarbondioxidecontentintheatmospherefrom1957to1997.Graph1:Graph2:3.Whatarethetwographsabou32Whatarethedifferentattitudestowardsglobalwarming?Part36Whatarethedifferentattitu33Part3(6-7)Dr.JaniceFosterGeorgeHambleypessimisticoptimisticPart3(6-7)Dr.JaniceFosterGeo34Part3(6-7)ariseintheseelevelseverestormsdroughtsFloodsDroughtsFaminesSpreadofdiseasesDisappearanceofspecies

optimisticItisa_______thing,whichmakesplantsgrow______;cropswillproduce_____;itwillencourageagreaterrangeof_______-allofwhichwillmakelife______.positivequickermoreanimalsbetterDr.JaniceFosterGeorgeHambleyPart3(6-7)ariseintheseele35Part3(6-7)Dotheydrawaconclusionatlast?NoPart3(6-7)Dotheydrawaconcl36Step4DiscussionNooneknowstheeffectsofglobalwarming.Doesthatmeanweshoulddonothing?Nowlet’slistentoasongandthengiveyouropinions.在你心中有个地方,

我知道那里充满了爱。

这个地方会比明天更灿烂。

如果你真的努力过,

你会发觉不必哭泣。

在这个地方,

你感觉不到伤痛或烦忧。

到那个地方的方法很多,

如果你真心关怀生者,

营造一些空间。

创造一个更美好的地方...

拯救这世界,

让它变得更好,

为你、为我,为了全人类。Step4DiscussionNooneknows37Discuss

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