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Lesson1GlobalWarming高二北师大版模块八Unit22EnvironmentalProtectionObjectives■Topractiseusingreportingverbs,e.g.warn,tell,ask,promise.■Topractiseusingvocabularyrelatedtoglobalwarming.■Tolearnaboutthecausesofglobalwarmingandraiseourawarenessofprotectingourglobe.■Totalkabouthowtohelpreducegreenhousegases.PartIWarm-upBriefNews:Copenhagen,September12,2009WorldleadersincludingU.S.PresidentBarackObama,ChinesePremierWenJiabao,addressthegeneralassembly(委员大会)oftheUnitedNationsClimateChangeConference2009inCopenhagenDecember16-18,2009.WorldleadersworkedthroughtheearlyhourstotryandbeataFridaydeadlineforadealoncuttingemissionsandhelpingpoorcountriescopewith(对付)thecostlyimpactofglobalwarming.Mostenvironmentalistsagreethatglobalwarmingisanunnaturalphenomenoncausedbytheemissionsfromburningcarbonfuelssuchascoal,oilandpetrol;theycallthisthe“greenhouseeffect”.TheGreenhouseEffectRaisingtheEarth’stemperaturewillcausesubstantialmeltingofthepolaricecapswhichwillthenleadtoariseinthesealevelandsubsequentfloodingoflow-lyingareas.Globalwarmingwillalsochangecountries’climatesandcausehugefoodandwatershortages.Therehavebeenseveralsummitsofgovernmentstodiscussthisproblembutmanycountriesdon’twanttomakechangestotheirfactoriesandindustrialworksasthiswouldcostthemmoney.Whichcountriesdoyouthinkcontributemoretoglobalwarming?a)developedcountriesb)developingcountriesDevelopedcountries–moreindustryandtechnology.PartIIReadingCanwetaketheheat?1.Scanthetextbelowforthesewordsandworkouttheirmeanings.consensusbounceagriculturecoincidence•aremarkableconcurrenceofeventsbychance•movequicklyup,back,orawayfromasurfaceafterhitting•ageneralagreement•thescienceorpracticeoffarmingcondemnreservationsacrificeadvocate•theactionofreservingsomething•torecommendorsupportpublicly•togiveup(somethingimportantorvalued)becauseofotherconsiderations•sentencetoaparticularpunishment,especiallydeath1)Themainpurposeofthefirstparagraphis__________.A.tointroducethetopicofglobalwarmingtothereadersB.toremindthereadersofhumanactivitiesinthepastC.tointroducethegreatesttroubleinthefutureD.tomentiontheprocessofglobalwarminginhistory3.Choosethebestanswertoeachquestionaccordingtothetext.Answer:A2)WhichofthefollowingisTRUEaboutgreenhousegases?A.Greenhousegaseswillonlydousharm.B.Greenhousegasesdomoreharmthangoodtohumans.C.Greenhousegasesdomoregoodthanharmtohumans.D.Propergreenhousegasesarequitenecessarytotheearth.Answer:D3)WhichofthefollowingisNOTmentionedastheresultofglobalwarming?A.Typhoons.B.Seriousdiseases.C.Polaricemelting.D.Heatwaves.Answer:A3.Readthetextquicklyandanswerthequestions.1)Whatisglobalwarming?2)Whathumanactivitiesarecausingglobalwarming?GlobalwarmingisanaverageincreaseintheEarth’stemperaturethatleadstoclimatechange.Industry,agriculture,thecuttingdownofforests,theincreaseintransportandtheburningoffuelsarecausingglobalwarming.3)Byhowmuchhastheglobalaveragetemperatureincreasedinthelast10years?4)AregreenhousegasesnecessaryforlifeonEarth?By1°F(onedegreeFahrenheit).Yes,theyare,becausetheytrapheatfromthesunintheEarth’satmosphere.OtherwisetheEarthwouldbecoldandunsuitableforlife.5)Howcanwehelpsolvetheproblemofglobalwarming?Wecanmakesmallchangesliketakingpublictransport,recycling,usinglow-flowshowerheads,andbuyingenergy-efficientlightbulbstohelpstopglobalwarming.PartIIIStructureAnalysis1.Inthelastfewdecades,scientistshavereachedconsensusandreportedthathumanbeingsarecausingchangesintheEarth’sclimate—somethingpreviouslyseenasbeyondourcontrol.译文：最近几十年来，科学家已经达成一致意见，认为人类活动引起了地球的气候变化，而地球的气候变化在以前看来是我们人类所不能控制的。结构分析：本句中的并列连词and连接两个并列的谓语。第二个谓语动词reported后接一个宾语从句thathumanbeingsarecausingchangesintheEarth’sclimate。而破折号后面的内容则是前面changes的一个同位语，对changes作补充说明。2.Lookingahead,scientistsbelievethatglobalwarmingcouldbeoneofthebiggestenvironmentalproblemsfacingthe21stcentury.译文：展望未来，科学家们认为，气候变暖可能是二十一世纪人类面临的最严重的环境问题之一。结构分析：lookingahead是一个现在分词短语在句中作状语，表示句子的主语scientists发出的动作。动词believe的后面则是一个宾语从句。宾语从句中的现在分词短语facingthe21stcentury在句中作定语，修饰前面的名词environmentalproblems。3.Withoutthesenaturallyoccurringgases,thesun’srayswouldbouncebackintospaceleavingtheEarthcoldandimpossibletoliveon.译文：如果没有这些自然产生的气体，太阳的光线将会被反射回太空中去，地球将处于寒冷之中，而不适合生命的存在。结构分析：这是一个含有现在分词的简单句，withoutthesenaturallyoccurringgases是介词短语作状语；thesun’srayswouldbouncebackintospace是句子的主体；leavingtheEarthcoldandimpossibletoliveon是现在分词短语作结果状语。4.Giventhisdata,itseemsthatthelinkbetweenhumanactivitiesandrisingglobaltemperaturesisnotmerelyacoincidence.译文：根据这一数据推断，人类活动与全球变暖之间的关系好像不仅仅是一个巧合。结构分析：这是一个主从复合句，giventhisdata是过去分词作条件状语，相当于whenwearegiventhisdata;itseems…是主句，it是形式主语，真正的主语是thatthelink…isnotmerelyacoincidence;betweenhumanactivitiesandrisingglobaltemperatures是介词短语作定语。PartIVOrganizationFillintheblankswiththeinformationfromthetext.Paragraph1:Introducethetopic_________________couldbeoneofthebiggestenvironmentalproblemsinthe21stcentury.GlobalwarmingParagraph2:Whatisglobalwarmingandhowitworks.GlobalwarmingmeansanaverageincreaseintheEarth’stemperaturewhichcauses_______________inturn.climatechangeParagraph3:ReasonsScientiststhinkitis______________thatcauseglobalwarming.Duetothe______