新人教选修六UnitGlobalwarming单元.pptx

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1、The effects of global warmingThe effects of global warming Negative effects:1causethesealeveltorise;2severestorms;3droughts;4famine;5destructionofspecies6flood第1页/共121页The effects of global warmingThe effects of global warming Positive effects:1makeplantsgrowfaster;2cropswillproducemore;3makelifebet

2、ter 第2页/共121页Energy sources?International relations?Money?Technology?Which is the most important to a country?Man power?第3页/共121页energy sources We depend on energy to do many things in our daily lives.For example,energy lights our cities and heats our buildings.Make a list of things that use energy

3、in your home,in your school,or any other places you can think of.第4页/共121页stove light things that use energy in your home micro-wave oven cassette player heating television hairdryer video player fridge computer washing machine stove第5页/共121页Windenergyisusedaspowertoproduceelectricity.Windmills第6页/共

4、121页where electricity is produced by burning coals.Thecoalpowerstations第7页/共121页inwhichoilisrefinedandmadepure.The Oil Refineries第8页/共121页afacilitydesignedtoconvertnuclearenergyintoelectricity.A nuclear power plant第9页/共121页 ontheroofofahouseonabrightsunnydayareusedtocollectsolarenergy,makingyourhous

5、ewarmorheatingyourwater.Solar panels第10页/共121页areusedtokeepbackwaterandraiseitslevelforirrigationorforproducingelectricity,etc.TheHydro-electricdams第11页/共121页 Anenergysourceis“renewable”whensuppliesofitneverrunoutand“non-renewable”whenonedaytheywillrunout.Whichenergysourcesonyourlistarerenewableandw

6、hicharenon-renewable?Discussion第12页/共121页CoalOilNatural gasUranium化铀(nuclear energy)Fossil fuelsNon-renewable第13页/共121页 Wind(windpower)Sun(solarenergy)Water(hydro-electricpower)Plantwaste植物性废物(biomassenergy生物团能量)Hotspringsorgeysers间歇泉(geothermalenergy)Thesea(tidalenergy潮汐能)Renewable第14页/共121页What ar

7、e fossil fuels?FossilfuelsareAncientanimalandplantmaterialbelowthesurfaceoftheearthwithahighcarboncontent,suchascoal,oilandnaturalgas,whichcanbeburnttoproduceenergy.Theyarealsoknownasnon-renewableenergybecauseoncetheyarerunoutof/runout,theycannotberenewed.第15页/共121页Whatarethesebuildingsmadeofandwhat

8、istheirpurpose?Theyaremadeofglassandplantscangrowinitwhenitiscoldoutside.第16页/共121页How does it work?Theglasstrapstheheatfromthesun,makingtheairwarmsothatplantscangrowbetter.第17页/共121页Greenhousegases!Whatsgreenhousegaseseffect?Greenhousegasesperformthesamefunctionastheglassinagreenhouse-Theytrapthehe

9、atofthesunandkeeptheairsurroundingtheearthwarm.Itiscalledthegreenhouseeffect.第18页/共121页The Earth Is The Earth Is Becoming Warmer Becoming Warmer But Does It But Does It Matter?Matter?第19页/共121页TranslatethefollowingwordsintoEnglish:图表图表现象现象燃料燃料影响影响灾难灾难副产品副产品数据气候每陈述范围干旱graphphenomenonfuelperdatacatast

10、ropheclimateconsequencestaterangebyproductdrought第20页/共121页与与比较比较发生发生大量的大量的导致导致增加增加毫无疑问毫无疑问继续继续物种的灭绝物种的灭绝compare tocome abouthuge quantities ofresult inbuild upThere is no doubt that keep onthe destruction of speciesTranslatethefollowingwordsintoEnglish:第21页/共121页FastReadingScanning1.Whowrotethemaga

11、zinearticle?Whatisthenameofthemagazine?2.Whatarethenamesofthethreescientistsmentionedinthearticle?3.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?4.Whatarethetwographsabout?第22页/共121页Sophie Armstrong wrote the magazine article.The name of the magazine is“Earth care”.2.Whatarethenamesof

12、thethreescientistsmentionedinthearticle?They are Dr.Janice Foster,Charles Keeling and George Hambley.1.Whowrotethemagazinearticle?Whatisthenameofthemagazine?第23页/共121页3.Whatdotheythinkaboutglobalwarming?Dotheyagreewithoneanother?Therearesomeverydifferentattitudesamongscientiststowardsthisissue.Somet

13、hinktheeffectswillbeterrible,whilesomeothersbelievethatweshouldnotworryaboutit.第24页/共121页4.Whatarethetwographsabout?Graph1showsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.Graph2showsthecarbondioxidecontentintheatmospherefrom1957to1997.Graph 1:Graph 2:第25页/共121页Whatisthemaintopicofth

14、earticle?A.The earth.B.Global warming.C.Becoming warmer doesnt matter.第26页/共121页skimming Skimthetexttogetthemainideaofthepassageandeachparagraph,thendividethewholepassageinto4partsandsummarisethemainideaofeachpart.第27页/共121页MainideasofeachpartPart1Part1(1)(1)Introduce a debate over the issue of glob

15、al warmingPart2Part2(2-5)(2-5)Explanationabouthowglobalwarmingcomesabout.Part3Part3(6)(6)Twodifferentattitudesamongscientiststowardsglobalwarming.Part4Part4(7)(7)Twochoicesofdealingwiththisproblem.第28页/共121页Detailed-Reading Readthearticleindetailsandfinishthefollowingtask.第29页/共121页 Dr.JaniceFosterC

16、arbondioxidehascausedtheglobaltemperatureto_.Anincreaseoffivedegreeswouldbea_andcouldbe_.goupcatastrophe veryseriousThedifferentideasbetweenDr.JaniceFoster&GeorgeHambley第30页/共121页GeorgeHambleyMorecarbondioxideisa_thing,whichmakescrops_andwillencourage_.positiveproduceagreaterrangeofanimals第31页/共121页

17、Some peopleothersThe sea level _.predict_,_,_,_,_,and _.rise by several metressevere stormsdroughtsfamines the spread of diseases Other peoples ideafloodsthe disppearance of species 第32页/共121页True or false?1.Thetemperatureinthelastcenturydidnotseemtoincreasemuch.2.Everyonebelievesthatglobalwarmingis

18、causedbytheactivitiesofhumans.3.JaniceFosterbelievesthatshecanmeasurethefutureglobalriseintemperature.TTF第33页/共121页4.Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.5.GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.6.Itisclearwhattheeffectsofglobalwarmingwillbe

19、.TTF第34页/共121页A:We shall do something about global warming.B:We shall do nothing about global warming.Debate第35页/共121页Global warming has attracted the worlds attention,because it affects us and will affect our later generations.Even though we are not sure about the effects of global warming,we shoul

20、d still hope for the best,prepare for the worst.Summary 第36页/共121页1.matter要紧、有关系，=beimportantItdoesntmatterifImissthetrainbecausetheresanotheroneintenminutes.Itiswhatyoudoratherthanwhatyousaythatmatters.Languagepoints 第37页/共121页2.Iparevt.1)比较;对照comparewith表示“把与相比(同类相比)”如：Comparedto/withmanywomen,she

21、wasindeedveryfortunate.第38页/共121页2)喻为;比拟compareto表示“把比做(异类相比,比喻)”如：Myhandwritingcannotbecomparedwithmyfathers.我的书法不能与我父亲的相比。Shakespearecomparedtheworldtoastage.莎士比亚把人世比做舞台。第39页/共121页用法拓展(1)comparenotes交换意见(2)beyondcomparison/compare无与伦比(3)compare.to.把比作(4)compare.with.把和相比Comparedwithyourbrother,you

22、shouldmakegreatereffortstostudyEnglish.和你哥哥相比，你应该更加努力学习英语。第40页/共121页comeabout:发生,造成,相当于happen你能告诉我事情是怎么发生的吗？Canyoutellmehowtheaccidentcameabout?随着电的使用,种种大变化发生了。Withtheuseofelectricity,eout出现;出版comeup出现;被提出3.Sohowhasthiscomeaboutanddoesitmatter?第41页/共121页come aboutcome acrosscome roundcome into being

23、come into effectcome outcome down to earth发生偶然遇到绕道而来,苏醒出现,形成开始生效出现;出版;显出回到现实中来第42页/共121页comeabout是不及物短语。Pleasetellmehowtheaccident_.Iamstillinthedark.(2005江西)A.camebyB.cameoutC.cametoD.cameaboutD第43页/共121页4.Thereisnodoubtthat.doubt1)作不可数名词作不可数名词,作作“疑惑疑惑;怀疑怀疑”肯定句中肯定句中doubt多接多接whether(一般不用一般不用if代替代替)同

24、位语从句。同位语从句。否定句中否定句中doubt多接多接that同位语从句。如同位语从句。如:Theressomedoubt_hellkeephispromise.Shehadherdoubt_thenewbookwouldsellwell.whetherwhether第44页/共121页Thereisnodoubt_theywillaskyouforhelp.Ihavenodoubt_youwillsucceed.2)作及物动词常用于下列句型中作及物动词常用于下列句型中,作作“怀疑怀疑;不能肯定不能肯定;不大相信不大相信”解解,一般不用进行时态。一般不用进行时态。thatthat第45页/共

25、121页用于否定句或疑问句用于否定句或疑问句,后接后接that引导的宾语引导的宾语从句。从句。用于肯定句用于肯定句,一般接一般接whether或或if引导的宾语引导的宾语从句。从句。如如:Idontdoubt_heistellingthetruth.我毫不怀疑他在讲真话。我毫不怀疑他在讲真话。Doyoudoubt_hewillwinthematch?你怀疑他会赢这场比赛吗你怀疑他会赢这场比赛吗?Idoubt_wewillmakeaprofitoutofit.我认为我们不可能从此事中获利。我认为我们不可能从此事中获利。Wedoubt_shewillbepersuaded.我们不知道她会不会被说服

26、。我们不知道她会不会被说服。whether/ifwhether/ifthatthat第46页/共121页4.subscribeto1)同意同意;支持支持Idontsubscribetosuchviews.我不同意这样的观点。我不同意这样的观点。2)对对.捐款捐款Manypeoplesubscribedliberallytotherelieffund.许多人为救灾基金慷慨解囊。许多人为救灾基金慷慨解囊。3)订阅订阅(书籍等书籍等)HesubscribedtoReadersDigest.他订阅他订阅读者文摘读者文摘。第47页/共121页5.Withoutthegreenhouseeffect,th

27、eearthwouldbeaboutthirty-threedegreesCelsiuscoolerthanitis.如果没有温室效应如果没有温室效应,地球会比现在冷地球会比现在冷33。这是一个含蓄虚拟条件句。这是一个含蓄虚拟条件句。有时假设的情况并不以条件从句形式表示有时假设的情况并不以条件从句形式表示出来出来,而是通过一个介词短语或其他方式而是通过一个介词短语或其他方式表示。常用的词或短语有表示。常用的词或短语有:without,butfor,otherwise,or,but等。等。第48页/共121页e.g.Withoutyourhelp(=Ifwehadnothadyourhelp),

28、wecouldnothavesucceeded要是没有你的帮助要是没有你的帮助,我们是不会成功的。我们是不会成功的。Hefeltverytiredyesterday,orhewouldhaveattendedtheparty他昨天很累他昨天很累,不然他就参加那个聚会了不然他就参加那个聚会了。第49页/共121页6.quantityn.数量数量;量量1)“alarge/smallquantityof+不可数名词不可数名词或可数名词复数或可数名词复数”表示表示“大量的大量的/少量的少量的”,当它修饰名词作主语时当它修饰名词作主语时,谓语动词用谓语动词用单数单数2)“large/smallquant

29、itiesof+不可数名词或不可数名词或可数名词复数可数名词复数”,但谓语动词用但谓语动词用复数复数。Largequantitiesofcottonhavebeenshippedallovertheworldalready.Alargequantityofbambooisusedforpipestocarrywater.第50页/共121页可数名词和不可数名词均可修饰：lotsof=alotofaquantityof=quantitiesofamassof=massesof,plentyof只修饰可数名词：many,agreat/largenumberof=largenumbersof,ago

30、od/greatmany,scoresof,dozensof只修饰不可数名词：much,agreat/largeamountofagreat/gooddealof第51页/共121页注意：注意：amountsof+不可数不可数名词充当句子名词充当句子的主语时的主语时,其谓语动词用其谓语动词用复复数。数。anamountof+不可数不可数名词充当句子名词充当句子的主语时的主语时,其谓语动词用其谓语动词用单单数。数。theamountof+不可数名词thenumberof+可数名词e.g.Whatareyougoingtodowiththeamountofmoney?第52页/共121页7.Itm

31、eansthatmoreheatenergytendstobetrappedintheatmospherecausingtheglobaltemperaturetogoup.二氧化碳量的增加意味着更多的热能滞留在大气中，结果造成地球温度的上升。主句是主句是“Itmeans”;that引导的是宾语从引导的是宾语从句，其中的分词短语句，其中的分词短语“causingtheglobaltemperaturetogoup”作结果状语。作结果状语。第53页/共121页tendvi.倾向；易于；照顾倾向；易于；照顾vt.照顾；护理照顾；护理1)tendto/towardsth.有有的趋势；倾向于的趋势；倾

32、向于tend(to)照顾照顾2)tendencyn.倾向倾向atendencyto/towardssth的倾向，趋势的倾向，趋势haveatendencytodosth.倾向于做某事，倾向于做某事，往往会做某事往往会做某事Eg.Mygrandmothertendstogotobedearlyeveryday.Hehasatendencytoforgetthings.第54页/共121页goup1)上升上升Priceshavegoneupagain.物价又上涨了。物价又上涨了。2)被建造起来被建造起来Newfactoriesaregoingupeverywhere.到处在兴建新工厂。到处在兴建新

33、工厂。第55页/共121页 resultin产生，导致（leadto,causesthtohappen)resultfrom由引起，产生(liein,occur,asaresultof/becauseof)Theaccidentresulted_thedriverscarelessness,whichresulted_thedeathoftwopassengers.fromin8.第56页/共121页1.Theexperiment_thediscoveryofacureforcancer.A.resultedinB.leadtoC.resultedfromD.wascausedby2.Hesl

34、ippedandbrokehisleg._,hewillhavetobeawayfromschoolfortwoorthreemonths.A.ResultinginB.WiththeresultthatC.AsaresultD.Theresultisthat第57页/共121页9.Ontheonehand,DrFosterthinksthatthetrendwhichincreasesthetemperatureby5degreeswouldbeacatastrophe.Ontheonehand,thisactivityisinteresting;ontheotherhand,itmakes

35、peoplehappy.Youshouldpayattentiontothetrendofpublicopinion.(舆论导向）Theearthquakewasaterriblecatastrophe.第58页/共121页10.Ontheotherhand,therearethose,likeGeorgeHambley,whoareopposedtothisview,believethatweshouldnotworryabouthighlevelsofcarbondioxideintheair.在另一方面,还有一些人,对这一观点持反对态度,像科学家乔治汉布利,他们认为我们不必担心空气中高含

36、量的二氧化碳。第59页/共121页ontheotherhand:另一方面另一方面Idliketoeatout,butontheotherhandIshouldbetryingtosavemoney.Iwanttogototheparty,butontheotherhandIoughttobestudying.我想去参加聚会我想去参加聚会,但从另一方面来说但从另一方面来说,我应该留下来学习。我应该留下来学习。第60页/共121页opposevt.反对反对;反抗反抗如：如：beopposedtosth./doingsth.反对某事反对某事/做某事做某事Iamopposedtogoingshoppi

37、ngwithothers.我反对与他人一起外出购物。我反对与他人一起外出购物。Heisstronglyopposedtotheplan.他强烈反对这一计划。他强烈反对这一计划。opposesth./doingsth.反对某事反对某事/做某事做某事oppose后若接动词后若接动词,则用其动名词形式，则用其动名词形式，而不用动词不定式。而不用动词不定式。Theyoungmanopposed/objectedtoturningtohisparentsforhelp.第61页/共121页11.consequencen.结果,后果,影响inconsequence因此asaconsequence结果asa

38、consequenceof由于的结果Itrainedyesterdayandinconsequencethematchwascanceled.Hestudiedhard,andinconsequencehepassedtheexam.第62页/共121页+n.12.state+that从句+wh-从句；他已公开声明他会支持那项政策。他已公开声明他会支持那项政策。Hehaspublicly_forthepolicy.stated his support我听见那位官员说不接纳儿童。我听见那位官员说不接纳儿童。Iheardtheofficialstatethattheywouldnotacceptc

39、hildren.合同清楚地叙述了那项工作应在何时完成。合同清楚地叙述了那项工作应在何时完成。Thecontractstatedwhentheworkshouldbefinished.v.陈述陈述,声明；声明；n.状况状况,情况情况;国家；国家；第63页/共121页13.Rangen.范围，种类范围，种类1）beyondtherangeof超越超越的范围的范围outofonesrange某人达不到的某人达不到的in/withinrange在在范围内范围内awiderangeof一系列一系列afullrangeof各种各种这家商店商品品种多。这家商店商品品种多。Theshopkeeps_.awid

40、erangeofgoods第64页/共121页2)rangefromto在什么范围内变动在什么范围内变动rangebetweenand在什么和什么范围内变动在什么和什么范围内变动温度在温度在15度到度到35度之间。度之间。Thetemperature_.rangesfrom15to35degrees第65页/共121页14.builtup逐步建立；增加；增进(1)builduponesconfidence/body增强自信/体质(2)buildsb./oneselfup增强某人的体质；使更加强壮(3)buildon.在的基础上发展Trafficisbuildinguponroadsintoth

41、ecity.来往的车辆在通往市区的道路上越聚越多。Youneedmoreproteintobuildyouup.你需要增加蛋白质以增强体质。第66页/共121页15.evenif/though:即使即使;虽然虽然Hewillcomeontimeeventhoughitrains.即使下雨即使下雨,他还是会准时来的。他还是会准时来的。IwouldnttellyouevenifIknew.Evenifshesurvives,shellneverfullyrecover.Eventhoughhes24now,hesstilllikealittlechild.Icanstillremember,eve

42、nthoughitwassolongago.第67页/共121页16.keepon继续Wekeptonworkinginthefieldinspiteoftherain.尽管下雨，我们还是坚持在地里劳动。Thechildrenkeptonwritingthoughthebellwasringing.尽管铃声在响着，孩子们还是继续写着。第68页/共121页17.Onthewholethewarmingoftheearthis a phenomenon that causes greatconcern.总体上来说，全球气候变暖是一种引起广泛关注的现象。Hisbusiness，onthewhole，

43、wassuccessful.他的事业大体上是成功的。Myopinionisonthewholethesameasyours.我的意见大体上同你的差不多。Onthewholeourtalksweregoingonsmoothly.总的来说，我们的谈判进展顺利。第69页/共121页Discovering useful Discovering useful words and words and expressionsexpressions第70页/共121页Findthewordsinthetextthathavethesetwomeanings.Takenoticeofthemeaninguse

44、dinthereadingpassage,writethewordsandmarktheirusageinthechart.1第71页/共121页Possiblemeaningsword Whichused1n.ageneraltendencyinthewayasituationischanging2v.tostartdoingsomethingthateveryonecopiestrend11v.tomakesomething(especiallysomethingbad)increase2n.asubstancethatcanbeburnedtomakeheatorenergyfuel2第

45、72页/共121页1n.thephysicalormentalconditionofsomeone2v.toformallysayorwritesomeinformationoranopinionstate21v.tousetime,energy,goods,etc2v.(formal)toeatordrinksomethingconsume11v.tolookquicklyatsomeoneorsomething2v.toreadsomethingveryquicklyglance2第73页/共121页 Gooverthenewwordsandphrasesintheprevioussect

46、ions.Thencompleteeachsentencewithoneofthosenewwordsorphrases.2第74页/共121页1.CharlesKeelingcollected_onthecarbondioxidecontentintheatmosphereoveraforty-yearperiod.Hefoundthattheamountofcarbondioxide_increasingduringthattime.datakepton第75页/共121页2.Althoughweareburningcoalinhuge_everyyear,wewont_ofitforce

47、nturies.3.Iftheamountofgreenhousegasescontinuesto_wecouldbefacingaglobal_.quantitiesrunoutbuildupcatastrophe第76页/共121页4.Manyscientistsbelievethatglobalwarminghas_eabout5.The_ofarisingsealevelwouldbewidespreadflooding.consequence第77页/共121页6.Onthewholethewarmingoftheearthisa_thatcausesgreatconcern.7.T

48、he_showstemperaturechangesduringthe20thcentury.8.Onehectareofforestcanabsorb23tonsofcarbondioxide_year.phenomenongraphper第78页/共121页9.Thewashingmachineusestoomuchenergy,but_webuyamoreeconomicalone,itwouldstillusetoomuchwater.evenif10.TheCaraccidentonthemainroadyesterday_onedriversdeath.resultedin第79页

49、/共121页Discovering useful Discovering useful structuresstructures第80页/共121页1.1.it it 作人称代词,主要指刚提到的事物，以避免重复;也可以指动物或婴儿.2.2.i it t作非人称代词，有时并不指具体的东西，而泛指天气、时间、日期、距离等.Review the use of“it”(1)3.3.用以代替指示代词this,thatthis,that4.it 作形式主语，而真正的主语是动词不定式、动名词或从句。5.it 作形式宾语，而真正的宾语是动词不定式、动名词或从句。第81页/共121页Theuseof“it”(2

50、)TheUseof“it”forEmphasis第82页/共121页Compare the two sentences below.1.Humanactivityhascausedthisglobalwarming.2.Itishumanactivitythathascausedthisglobalwarming.“It”hasbeenusedinthesecondsentencetogiveextraimportanceto“humanactivity”.第83页/共121页一一.陈述句的强调句型结构陈述句的强调句型结构:1.Tomateaneggathomethismorning.强调主语