【课件】Unit+3Reading+and+Thinking+课件人教版（2019）选择性必修第三册

Earthprovidesenoughtosatisfyeveryman’sneeds,butnoteveryman’sgreed.

Videotime1.Whataretheextremeweatheranddisastersmentionedinthevideo?2.Whatdoyouthinkcausessuchextremeweatheranddisasters?drought[draʊt]flood[flʌd]Storm（stɔːm）sealevelriseheatwave[hiːtweɪv]fireGlobalwarmingClimatechange2.Whatdoyouthinkcausessuchextremeweatheranddisasters?Earthprovidesenoughtosatisfyeveryman’sneeds,butnoteveryman’sgreed.—MohandasK.Gandhi地球能满足人类的需要，但满足不了人类的贪婪。[ˈsætɪsfaɪ][ɡriːd]Lookatthegraph.Whatisitabout?Whatinformationcanyougetfromit?Whatcanyouseeinthephoto?Whatmightbethestorybehindit?Thetemperatureoftheglobalsurfaceroseabout1.2℃

from1920to2016.Theearthisbecomingwarmerandwarmer.Whateffectsmaybecausedbytheglobalwarming?Before-writingskinandbones/bəʊnz/瘦得皮包骨Thepolarbear(北极熊)maydiedforlackingfood.While-reading:readforthetexttype

1.Whatisthetypeofthispassage?A.

Argumentativewriting议论文B.Narrative

writing叙述文C.Expository

writing说明文D.Advertisingwriting广告2.Inwhichpartofanewspaperormagazinemaywefindthispassage?A.EntertainmentB.EconomyC.EducationD.EnvironmentWhile-reading:readforthestructureandmainidea

Part1:(para.1-2)Part2:(para.3)Part3:(para.4)Part4:(para.5)Theevidence(证据)ofdramaticclimatechangethathadanimpactonEarth’secologyThecauses(原因)oftheincreaseintheglobalaveragesurfacetemperatureTheconsequences(结果)oftheriseintemperatureThesolutions(解决方法)toreducinggreenhousegasemissionsMatchthemainideawitheachpart.While-reading:readforthestructureandmainidea

EvidenceCauseConsequencesSolutions Wehaveknownaboutclimatechangefordecades.ThereislittledoubtthatEarthisgettingwarmerandwarmer(seethegraph).Awarmingoceanandatmospherealongwithmeltingiceandrisingsealevelsprovideevidenceofadramaticchangeintheglobalclimate.Para1Whatevidenceofclimatechangecanyoufindinthefirstparagraph?Evidenceone:_____________________________________Evidencetwo:_____________________________________Evidencethree:_____________________________________awarmingoceanandatmospheremeltingicerisingsealevel In2013,alotofpeoplewereshockedbyanewsphotoofadeadpolarbearthatwasfoundonNorway'sArcticislandofSvalbard.Accordingtothescientistswhofounditsdeadbody,allthatremainedofthepolarbearwas"skinandbones".Anexpertwhohasstudiedpolarbearsformanyyearssaidthatfromthepositionofitsdeadbody,thebearappearedtohavestarvedanddied.Expertsclaimedthatlowsea-icelevelscausedbyclimatechangemeantthebearcouldnothuntsealsasbefore,soithadtotravelgreaterdistancesinordertofindfood.ThisalarmingcaseshowedhowtheincreaseintemperaturehadanimpactonEarth'secology.Para2While-reading:readforthedetails

Paragraph2introducesanexampleoftheincreaseintemperaturethathadanimpactonEarth’secology.Readitandfillinthetable.Part1(para1-2):Theevidence证据 Thenwhatiscausingtheincreaseintheglobalaveragesurfacetemperature?Climatescientistsoftenmentionakeyclimateprocesscalledthe"greenhouseeffect",whichhastwocommonmeanings:the"natural"greenhouseeffectandthe"man-made"greenhouseeffect.The"natural"greenhouseeffectreferstothefactthatheatfromthesunenterstheatmosphereandwarmsEarth'ssurfaceasshort-waveradiation.Theheatisreleasedbackintospaceatlongerwavelengths.Greenhousegasesintheatmosphere,suchasmethaneandcarbondioxide,trapsomeoftheheat,keepingEarth'sclimatewarmandhabitable.Withoutthisprocess,Earthcouldnotsustainlife.However,the"man-made"greenhouseeffecthasnowbecomeabigproblem.Whenpeopleproducehugeamountsofextragreenhousegasesbyburningfossilfuels,moreheatenergyistrappedintheatmosphereandcausesEarth'ssurfacetemperaturetorisequickly.Para3Whatiscausingtheincreaseintheglobalaveragesurfacetemperature?While-reading:readforthedetails

Whatiscausingtheincreaseintheglobalaveragesurfacetemperature?Part2(para3):Thecause原因Greenhouseeffect_________greenhouseeffect____________greenhouseeffectDefinition(定义):Function(作用):“Natural”“Man-made”Definition:Abigproblem:While-reading:readforthedetails

Part2(para3):ThecauseGreenhouseeffect“Natural”greenhouseeffect“man-made”greenhouseeffect Thereisstrongandcomprehensiveevidencethattheriseintemperaturehasledtoanincreaseinextremeweatherandnaturaldisastersworldwide,notonlycausingseriousdamage,butalsocostinghumanlives.Climatescientistshavewarnedthatifwedonottakeappropriateactions,thiswarmingtrendwillprobablycontinueandtherewillbeahigherpricetopay.Infact,newsreportsarefrequentlybroadcastaboutextremerainstormsandheatwavescausingdeathsandeconomiclosses.Para4Theriseintemperatureledtoexampleresultsseriousdamage,costinghumanlives,economiclossesextremeweather/naturaldisastersextremerainstorms,heatwavesTheconsequence结果Whataretheconsequencesofglobaltemperaturerise? Continuedgreenhousegasemissionswillresultinfurtherwarmingandlong-lastingchangestotheglobalclimate.Thisrequirestheattentionofpeopleallovertheworld.Governmentsneedtoconsidermakingpoliciesandtakingappropriateactionsandmeasurestoreducegreenhousegasemissions.Weasindividualscanalsoreduceour"carbonfootprint"byrestrictingtheamountofcarbondioxideourlifestylesproduce.Itisourresponsibilitytoseizeeveryopportunitytoeducateeveryoneaboutglobalwarming,alongwithitscausesandimpacts,becausethisisthemostseriousissueaffectingallofusonthisplanet.Sowhatwillyoudotohelp?Para5Whatarethesolutionswecando?Thesolutions解决方法While-reading:readforthedetails

Part4(para5):Thesolutions解决方法Whatarethesolutionswecando?Whatisaquestionleftattheend?

Whatiscausingtheincreaseintheglobalaveragesurfacetemperature?Climatescientistsoftenmentionakeyclimateprocess1_______(call)the“greenhouseeffect”,whichhastwocommonmeanings:the“natural”greenhouseeffectandthe“man-made”greenhouseeffect.The“natural”greenhouseeffectreferstothefact2______heatfromthesunenterstheatmosphereandwarmsEarth’ssurfaceasshort-waveradiation.Theheat3____________(release)backintospaceatlongerwavelengths.Greenhousegasesintheatmosphere,suchasmethaneandcarbondioxide,trapsomeoftheheat,keepingEarth’sclimatewarmandhabitable.4__________thisprocess,Earthcouldnotsustainlife.However,the“man-made”greenhouseeffecthasnowbecome5___bigproblem.calledthatisreleasedWithoutaRetellingWhenpeopleproducehugeamountsofextragreenhousegasesbyburningfossilfuels,moreheatenergyistrappedintheatmosphereandcausesEarth’ssurfacetemperature6_________(rise)quickly.Thereisstrongandcomprehensiveevidencethattheriseintemperature7_________(lead)toanincreaseinextremeweatherandnaturaldisastersworldwide,notonlycausingseriousdamage,butalsocostinghumanlives.Climate8___________(scientist)havewarnedthatifwedonottakeappropriateactions,thiswarmingtrendwillprobablycontinueandtherewillbea9________(high)pricetopay.Infact,newsreportsare10___________(frequent)broadcastaboutextremerainstormsandheatwavescausingdeathsandeconomiclosses.frequentlyhasled