高中英语选修六 unit4 Warming up and reading 3

Unit4GlobalWarmingLeadin•1.Comparedtothepastfewyears,whatisthewearherlikethisyear?•2.Doyouwanttocheckitout?Herearesomepicturesbasedontheactuallifescenesintheseyearsforyoutoreferto.Extremeheat酷暑•Doyouthinkthewholeworldisbecomingwarmerandwarmer?•Butdoesitmatter?Thisisthetopicwearegoingtodiscussfortoday.TheEarthisBecomingWarmer--ButDoesItMatter?地球在变暖——要不要紧？ReadingFastReadingGlancequicklyatthemagazinearticleandanswerthequestions.1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?2.Whatarethenamesofthethreescientistsmentionedinthearticle?→SophieArmstrong,EarthCare.→DrJaniceFoster,CharlesKeeling,GeorgeHambley.Paragraph1Paragraphs2to5Paragraph6Part1Part2Part4MainideaofthetextPart3Paragraph7Howglobalwarmingcomesabout?(全球变暖是怎样产生的)Twodifferentopinionsaboutglobalwarming.Theearthisbecomingwarmer.Shouldwedoanything?TrueorfalseReadthearticlecarefullyandfinishPart2onPage271.Thetemperatureinthelastcenturydidn’tincreasemuch.()2.Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.()3.JaniceFosterbelievesthatshecanmeasurethefutureglobalriseintemperature.()TTF4.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.()5.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.()6.Itisclearwhattheeffectsofglobalwarmingwillbe.()FTTQuestionsHowhastheglobalwarmingcomeabout(产生)?①Humanactivity---burningoffossilfuels.②Greenhouseeffect---greenhousegases---weneedthosegases.③WeaddhugequantitiesofextracarbondioxidetotheatmospherebyburningFossilfuels.Thecarbondioxidecontentoftheatmospherewentupfromaround315partspermilliontoaround370partspermillionfrom1957to1997(SeeGraph2onPage26)ThetwodifferentviewpointstowardstheeffectsofglobalwarmingbetweenDr.JaniceFosterandGeorgeHambleyDr.JaniceFosterGeorgeHambleyCarbondioxidehascausedtheglobaltemperatureto__________.Anincreaseoffivedegreeswouldbea____________andcouldbe______________.Morecarbondioxideisa__________thing,whichmakescrops__________andwillencourage____________________.goupcatastropheveryseriouspositiveproducemoreagreaterrangeofanimalsOfthetwoideas,whichareyouinfavorof?TheDrJaniceFoster’s.Why?Becausewehavewitnessedalargenumberofdisasterspredictedbysomepeople.Whataretheeffectsanddisastersofglobalwarming?1.causethesealeveltorise2.severestorms3.floods4.droughts5.famines6.thespreadofdiseases7.disappearanceofspeciesPositiveeffects正面影响Negativeeffects负面影响1.causethesealeveltorise2.severestorms3.floods4.droughts5.famines6.thespreadofdiseases7.disappearanceofspeciesPositiveeffectsNegativeeffects1.makeplantsgrowquicker2.cropswillproducemore3.agreaterrangeofanimals4.makelifebetterWhat’sworse,theglaciers(冰川）oftheSouthPolearebeginningtocrack（破裂）TheglaciersofthePolesarestartingtomeltduetotheincreasingtemperaturescausedbyglobalwarming.Thesealeveltorise.SeverestormsdroughtsfaminesthespreadofdiseasesdestructionofspeciesSummaryHowEffects1.Humanactivities2.GreenhousegasesCarbondioxide1.causethesealeveltorise2.severestorms3.floods4.droughts5.famines6.thespreadofdiseases7.disappearanceofspeciesPositiveeffectsNegativeeffects1.makeplantsgrowquicker2.cropswillproducemore3.agreaterrangeofanimals4.makelifebetterWhatshouldwedoabouttheterribleeffectsabove?..TrytoreducetheuseofmotorvehicleselectricvehiclebikerunningSolarenergycarPlantingtreesCleaningtherubbish×××√.×√Low-carbonlife（低碳生活）ReturnthegreenworldtousSummaryThispassageaimsatshowingushowdoesglobalwarming____________.Italsointroducestwodifferent_________ofscientiststowardstheincreaseoftemperature.Dr.JaniceFosterthinksthatitisa_________thing.Dr.Hambleythinksthatitisa_______thing.However,__________knowstheexacteffectsofglobalwarming.comeaboutattitudesnegativepositivenoone旨在Homework1.Readthetextagain,andtrytoretellit.2.Findoutthedifficultsentencesinthepassage.