Unit3EnvironmentalProtectionReadingandThinking課件高中英語人教版選擇性2

Unit1Wheredoyouthinkthisphotowastaken?2.Whatdoesthisphotomakeyouthinkof?IthinkthisphotowastakenineithertheArcticorAntarctica,asthoseplaceshavelargeicesheetslikethis.Thephotomakesmethinkoftheproblemofglobalwarming.ClimateChangeRequiresTheWorld’sAttentionDiscussclimatechangeLearningObjectives1.Studentscanlearnmoreaboutclimatechangeanddrawadiagramdescribinghow“greenhouseeffect”works.2.Studentscanlearntoidentifythestyleofthetextandinferthewriter’spurpose.3.Studentscanvoicetheirpersonalopinionsabouthowtodealwithclimatechange.4.Studentscanraisetheirawarenessofcooperationbygroupwork.Beforeyouread,lookatthegraphandthepictureonPage26anddiscussthesequestionsingroups.1ReadingandThinkingDiscussclimatechange1.Whatisthegraphabout?Whatinformationcanyougetfromit?ThegraphshowsthechangeintheGlobalSurfaceTemperaturebetween1920and2016.Itshowsthetemperatureanomaly,whichshowshowmuchthetemperaturehasrisenabovewhatitwouldusuallybeatabaselevel.Inwhichyeardidthetemperaturestarttoincreasequickly?why?ReadingandThinking2.Haveyoueverseenthephotobefore?Whatmightbethestorybehindit?ReadingandThinking2.Haveyoueverseenthephotobefore?Whatmightbethestorybehindit?ReadingandThinkingIhaven’tseenthisphoto,butIhaveseenphotoslikeit.Thestoryisthatthepolarbearstarvedtodeathbecauseitcouldnotfindenoughtoeat.1.Whatdoesthetextmainlytellus?A.Somepolarbearsdiedofstarvation.B.Whatthegreenhouseeffectis.C.Globalwarminghascausedsomedisastersandwemustpayattentiontoit.D.Howpolarbearsfindfood.√ReadingandThinkingLookthroughthetextquicklyandpredicttheexercisesbelow.22.Matchthemainideawitheachparagraph.Part1(Paras.1－2)

A．Theeffectsoftheriseintemperature.Part2(Para.3)

B．Thecausesofglobalwarming.Part3(Para.4)

C．Thesolutionstoreducinggreenhousegasemissions.Part4(Para.5)

D．Theevidenceofdramaticclimatechange.Readthetextquicklyandcompletetheexercisesbelow.ReadingandThinking2現(xiàn)象原因危害措施ReadingandThinking3.Whattypeofwritingisthispassage?

ArgumentativewritingB.NarrativewritingC.ExpositorywritingD.AdvertisingwritingC4.Inwhichpartofanewspaperormagazinemaywefindthispassage?EntertainmentB.EconomyC.EducationD.EnvironmentDReadthetextquicklyandcompletetheexercisesbelow.ReadingandThinking2本文是一篇說明文。說明文是客觀說明事物的一種文體，以解說或介紹事物的形狀、性質(zhì)、成因、構(gòu)造、功用、類別等為主要內(nèi)容。說明文主要通過對(duì)客觀事物或事理的介紹說明，達(dá)到以知識(shí)教人的目的，因此說明文以客觀、準(zhǔn)確為基本要求，強(qiáng)調(diào)科學(xué)性和客觀性。ReadingandThinkingReadparagraphs1-2andanswerthequestions.Whathappenedtothepolarbearinthephoto?Whydidthewriterwriteaboutit?Thepolarbearinthephotodiedofstarvation.Thewriterwroteaboutitbecauseitshowedoneoftheeffectsofrisingtemperaturesduetoclimatechange.ReadingandThinking32.Whatevidenceofclimatechangecanyoufindinthesetwoparagraphs?Awarmingoceanandatmospherealongwithmeltingiceandrisingsealevels.3.Canyouuseyourwordstodescribehowclimatechangehaveinfluencedthepolarbear’slife?itsdeadbodyfoundClimatechangelowsea-icelevelsbearscouldnothunthadtotravelgreaterdistancestofindfoodstarvedtodeathReadingandThinking1.Whyisthe“natural”greenhouseeffectimportantandnecessary?BecauseitwarmstheEarth’ssurfaceandkeepsithabitable.2.Whataretheconsequencesofhighgreenhousegasemissions?MoreheatenergyistrappedintheatmosphereandcausesEarth’ssurfacetemperaturetorisequickly.Readparagraph3andanswerthequestions.ReadingandThinking3KeepingEarth’swarmandhabitableFigureoutthereasonwhyearth’stemperaturerising.Greenhouseeffect“Natural”greenhouseeffect“man-made”greenhouseeffectCausingEarth’ssurfacetemperaturetorisequicklyiftoomuchheatenergyistrappedReadingandThinking3Readtheparagraph3againandcreateadiagramdescribinghowthegreenhouseeffectworks.DrawadiagramDiagramsareveryusefultoolsthatcanbeusedtobrainstormideas,mapoutprocesses,showcauseandeffectrelationships,explainanewidea

orconcept,andsoon.Whenyoureadanessayaboutscientificissues,youcantrydrawingadiagram,whichwillnotonlyallowyouvisualisetheproblemsmoreclearlybutalsocanhelpdemonstrateyourcreativethinkingandproblem-solving.ReadingandThinking3HeatreleasedbackintospaceHeatreflectedbacktoEarth’ssurfaceSunlightReflectedsunlightReadingandThinking1.Whydidtheauthormentiontheclimatescientists’warning?Toappealtopeopletotakeappropriateactionsandmeasuresandmakeeveryonepayattentiontotheproblem.Readparagraph4andanswerthefollowingquestions.2.Whatexamplesofextremeweatheranddisastersdoyouknow?Canyoumakealist?Therearesadlymanyexamplesofextremeweatheranddisasters,suchastheextremerainfallinFranceandthedroughtinEastAfricain2014.Therewerealsoheatwavesonnearlyeverycontinentduetoclimatechange.ReadingandThinking3Finishthemindmapbelow.Theriseintemperatureledtoexampleresultsextremerainstorms,heatwavesseriousdamage,costinghumanlives,economiclossesextremeweather/naturaldisastersReadingandThinking3Whataretheconsequencesmayglobalwarmingbringabout?GlobalwarminganimalsdyingtheriseofsealevelunpredictablefutureofhumancoastalcitiessubmergedeconomiclossesextremeweathernaturaldisastersReadingandThinking3Readparagraph5andanswerthefollowingquestion.ReadingandThinking1.Whatistheauthor’spurposeofwritingthistext?Theauthor’spurposeistoinformthereaderandinspirethemtodowhate