人教版选修6_unit_4_global_warming

1.consumeenergy2.greenhouse3.greenhousegases4.thegreenhouseeffect5.degreeFahrenheit6.degreeCelsius7.atmosphere8.fossilfuel9.carbondioxide10.renewablesource11.non-renewablesource12.Naturalresources•消耗能源•温室•温室气体•温室效应•华氏度•摄氏度•大气层•化石燃料•二氧化碳•可再生资源•不可再生资源•天然资源Relatedwords:['færəhait]['selsiəs]Wedependonenergytodomanythingsinourdailylives.Makealistofthethingsthatconsumeenergyinyourhome,schooloranyotherplaces.Lights,heating,television,cassetteplayer,videorecorder,computer,fridge,washingmachine,hairdryer,airconditioner,cars….Wheredoestheenergycomefrom?Energysources:renewableandnon-renewablesources.Renewablesources:energysourcesthatneverrunout.Non-renewable:energysourcesthatwillrunoutoneday.Makealistofenergysources.acoalpowerStation(燃煤发电站)non-renewablecoalwindpower(风力)renewableOil(anoilrefinery)炼油厂non-renewable[ri'fainəri]精炼厂solar-energyrenewablenuclearenergy(anuclearpowerplant核电站)naturalgasPlantwastehotsprings(温泉)thesea(tidalenergy潮汐能)Water(ahydrodam水坝)non-renewablerenewablerenewablerenewablerenewablenon-renewablemoresourcesofenergyrenewableornon-renewable•Nowthatwehavelearnedsomesourcesofenergyarenon-renewable,Whatshouldwedowithenergy?•---Weshouldsaveenergyandthusreducetheemission(排放)ofgreenhousegases.agreenhousePre-readingWhatisagreenhousemadeof?Howdoesitwork?Itismadeof_____andplantscangrowinitwhenit’scoldoutside,becausetheglass______theheat______thesunandkeepsitfrom_______.Thismakesthegreenhouse_________andsotheplantscangrowthroughoutthecoldperiod.glasstrapsfromescapingheatupMethane['mi:θein]WhatareGreenhousegases?Intheatmospheresurroundingtheearththerearegasescalled“greenhousegases”,including…CarbondioxideWatervaporWhat…greenhousegasesdo?Greenhousegasesperformthesamefunctionastheglassofaglasshouse.Theytrapheatfromthesunandkeeptheairsurroundingtheearthwarm,whichiscalledthegreenhouseeffect.温室效应Doweneedthosegases?Withoutthe“greenhouseeffect”,whatwouldhappen?Theearthwouldbeabout33℃coolerthanitis.AscientistcalledCharelesKeelingmadeaccuratemeasurementsoftheamountofcarbondioxidecontentintheatmospherefrom1957to1997.Butwhatiftherewasanincreaseingreenhousegases?Hefoundthat…Betweentheseyearsthecarbondioxideintheatmospherewentupfromaround315partstoaround370partspermillion.315(百万分之)TheEarthisBecomingWarmer--ButDoesItMatter?Firstreadingforgeneralidea:1.Wherecanwereadsuchanarticle?2.Whowrotethemagazinearticle?Whatisthenameofthemagazine?3.Whatisthemaintopicofthearticle?SophieArmstrongEarthCare《关爱地球》.Fromamagazine.(Thequotes引言arepartofthearticle,whichistypicalofmagazinearticles.）GlobalwarmingAnydifferentfonttypes?GraphsnewwordsinboldTextFeatures4.Whatrethenamesofthethreescientistsmentionedinthearticle?1.Whatisthefirstgraphabout?2.Howhasglobalwarmingcomeabout?3.Whatdothescientiststhinkaboutglobalwarming?Dotheyagreewitheachother?4.Whatmaybetheterribleeffectsofglobalwarming?5.Whatmaybethepositiveaspectsofglobalwarming?Secondreadingfordetails:1.Whatisthefirstgraphabout?Theearthisbecomingwarmer.Graph1showsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.2.Howhasglobalwarmingcomeabout?Itishumanactivitythathascausedtheglobalwarming(ratherthanarandombutnaturalphenomenon).Theproblembeginswhenhugequantitiesofextracarbondioxideareaddedintotheatmosphere.…isduetotheburningoffossilfuels…Dr.Foster:_____________________GeorgeHambley:_________________3.Whatdothescientiststhinkaboutglobalwarming?Dotheyagreewithoneanother?Itwouldbeacatastrophe.weshouldnotworryaboutit.Theyhavequitedifferentattitudestowardsthisissue.4.Whatmaybetheterribleeffectsofglobalwarming?ariseofseveralmetresinthesealevel;severestorms,droughts,famines,thespreadofdiseases,andthedisappearanceofspecies.5.Whatmaybethepositiveaspectsofglobalwarming?Plantsgrowquicker;Cropswillproducemore;Encourageagreatrangeofanimals;Makelifeforhumanbeingsbetter.Readthetextcarefullyandsumupthemainideaofeachpart.Partone:(para1)Introducetheissueofglobalwarming.Parttwo:(para2-5)Explainhowglobalwarmingcomesabout.Partthree:(para6)Listtwodifferentattitudesamongscientiststowardsglobalwarming.Partfour:(para7)It’suptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.Whatskillsareusedinthefourparts?Part1Part2Part3Part4usingaquestion,leavingreaderstothinkovertheissuegivingexamples,makingcontrast(comparison)givingexamples,usinggraphs,explanationraisingaquestionListentothetape.Arethefollowingstatementstrueorfalse?(SBP27Ex2)Astatement:Weshoulddonothingaboutglobalwarming.Agreeofdisagree?Why?Group-discussion:Languagepoints:(Somephrasesinwarmingup:)1.消耗能量2.能源3.用完,耗尽4.吸收太阳的热量5.阻止….不被….6.温室气体consumeenergyenergysourcesrunouttraptheheatfromthesunkeep…..from….greenhousegasesLanguagepoints:(SomephrasesinPassage1:)1.产生2.探究这些问题3.一种无规律的自然现象4.赞同这种观点5.化石燃料6.少量气体7.大量的8.额外的二氧化碳9.趋向，有...的倾向1.comeabout2.explorethesequestions3.arandombutnaturalphenomenon4.subscribetotheview5.fossilfuel6.smallamountsofgases7.hugequantitiesof8.extracarbondioxide9.tendto10.作精确的统计11.导致•一场大灾难•干旱/饥荒•反对这观点•对环境的影响•更多种类的动物17.持续转暖10.makeaccuratemeasurements11.resultin12.acatastrophe13.severedroughts/famines14.beopposedto