【課件】Unit+3Reading+and+thinking+課件人教版選擇性必修第三冊(cè)

UNIT3

EnvironmentalProtection1.Whatcanyouseeinthepicture?2.Whatwillhappenifglaciersaremeltingfasterthanbefore?Lead-inAlargepieceoficebreakingoffalargeglacieroricesheet.

Risingsealevels.Adramaticchangeintheglobalclimate.HaveanimpactonEarth’secology.naturaldisasterseconomiclossescoastalcitiessubmergedextremeweatherunpredictablefutureofhumananimalsdyingWhatconsequencesmayclimatechangebringabout?climatechangesEarthprovidesenoughtosatisfyeveryman’sneeds,butnoteveryman’sgreed.—MohandasK.GandhiWhatisthedifferencebetween“needs”and“greed”?Howdoyouunderstandthequote?Howisitrelatedtothethemeoftheunit?Whatisthegraphabout?Whatinformationcanyougetfromit?What`stheauthor`spurposeofusingthegraphandthephoto?Pre-readingLookatthegraph.Whatisitabout?Whatinformationcanyougetfromit?Whatcanyouseeinthephoto?Whatmightbethestorybehindit?Thetemperatureoftheglobalsurfaceroseabout1.2℃

from1920to2016.Theearthisbecomingwarmerandwarmer.Whateffectsmaybecausedbytheglobalwarming?skinandbones瘦得皮包骨Thepolarbear(北極熊)maydiedforlackingfood.1.What'sthetypeofthistext?A.Essay論文B.Biography傳記C.Exposition.說明文D.Argumentation.議論文2.What'sitspurpose?ToinformreaderstodealwithclimatechangeTopersuadereaderstofocusonlimitedresources\3.Inwhichpartofanewspaperormagazinemaywefindthispassage?A.EntertainmentB.EconomyC.EducationD.EnvironmentSkimmingPara1.Theinfluences

oftheriseintemperature.Para2.Thesolutions

toreducinggreenhousegasemissions.Para3.Anexactexampleofclimatechange.Para4.Aproblemofclimatechange.Para5.Thecausesoftheincreaseintheglobaltemperature.RblemexamplecausesinfluencessolutionsRblemexamplecausesinfluencessolutionsReadingforthedetails.Readingforthedetails

(Para1):AproblemWhat?

Evidenceawarmingocean&atmospheremeltingicerisingsealevelClimate’sisgettingwarmerandwarmerClimatechangelowsea-icelevelsbearscouldnothunthadtotravelgreaterdistancestofindfoodstarvedtodeathitsdeadbodyfoundApolarbear’sdeadbodywasfoundStarvedtodeathLowsea-icelevelsClimatechangeThebearcouldnothuntsealsHadtotravelgreaterdistancetofindfoodPara2.Putthefollowingsentencesintotherightorder.Whatiscausingtheincreaseintheglobalaveragesurfacetemperature?(Para3):ThecausesGreenhouseeffect_________greenhouseeffect____________greenhouseeffectFunction(作用):“Natural”“Man-made”Abigproblem:keepingEarth'sclimatewarmandhabitablecausingEarth’ssurfacetemperaturetorisequickly

Diagramsareveryusefultoolsthatcanbeusedtobrainstormidea,mapoutprocesses,showcauseandeffectrelationships,explainanewideaofconcept,andsoon.Whenyoureadanessayaboutscientificissues,youcantrydrawingadiagram,whichwillnotonlyallowyoutovisualizetheproblemsmoreclearlybutalsocanhelpdemonstrateyourcreativethinkingandproblem-solving.Whatarethebenefitsofusingdiagrams?Adiagramdescribinghowthegreenhouseeffectworks(para4):Theinfluences結(jié)果Whataretheconsequencesofglobaltemperaturerise?Finishthemindmapbelow.Theriseintemperatureledtoexampleresultsseriousdamage,costinghumanlives,economiclossesextremeweather/naturaldisastersextremerainstorms,heatwavesGovernmentsIndividualsmakepoliciestakeappropriateactionsandmeasurestoreducegreenhousegasemissionsrestricttheamountofcarbondioxideourlifestylesproducetoreduceour“carbonfootprint”(Para5):Thesolutions1.Whatexamplesofextremeweatheranddisastersdoyouknow?

Makealistofthem.2.Doyouthinkitishumanactivitythatcausedglobalclimatechange?Giveyourreasons?Discussion1.Whatexamplesofextremeweatheranddisastersdoyouknow?

Makealistofthem.2.Doyouthinkitishumanactivitythatcausedglobalclimatechange?Giveyourreasons?Yes.Humanbeingsburntoomuchfossilfuelsandproducelargequantitiesofcarbondioxide,causingthetemperaturetogoupsteadily.Tsunami(海嘯）,floods（洪水）,landslides（滑坡）,sandstorms（沙塵暴）,thunderstorms（雷雨）,earthquakes,hail（冰雹）,heatwaves（熱浪）,coldwaves（寒潮）,typhoons（臺(tái)風(fēng)）,tornados(龍卷風(fēng)).DiscussionWhatwillyoudotohelp?1.graph

圖表/曲線圖

diagram

幾何圖解/示意圖

table列表/一覽表2.emissionn.排放物;散發(fā)物;排放pl：emissions

emitv.發(fā)出;射出;散發(fā)同義短語：giveoff/out發(fā)出(光,熱,氣體）3.melt(melted)融化,軟化

ameltingpotofdifferentnationalities:多民族的大熔爐4.starvevi.&vt.(使)挨餓;餓死

starvationn.(be)starve(d)todeath餓死5.sealn.海豹/印章v.密封

eg：Hebrokethewaxsealandunrolledthepaper.6.ecologyn.生態(tài);生態(tài)學(xué)

ecologist

生態(tài)學(xué)家biologyn.生物學(xué);生態(tài)學(xué)

biologist

生物學(xué)家

psychologyn.心理學(xué)

7.releasevt.&n.排放;釋放;發(fā)布

set...free

釋放8.habitableadj.適合居住的habitatn.(動(dòng)植物的)棲息地

habitn.習(xí)慣;癖好9.fueln.燃料；刺激性言行

addfueltothefire/flames:火上澆油10.