Unit 4 Warming up and Reading -高中英语人教新课标选修六.pptx
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1、Global WarmingCan you describe this cartoon?From the cartoon,we a draw a conclusion:Listthingsthatuseenergysourcesofenergyrenewable/non-renewable We depend on energy to do many things in our daily lives.Make a list of the things that consume energy in your home,school or any other places.Lights,heat
2、ing,television,pad,video recorder,computer,fridge,washing machine,hair dryer,air conditioner,cars.Where does the energy come from?Energy sources:renewable and non-renewable sources.Renewable sources:energy sources that never run out.Non-renewable:energy sources that will run out one day.Make a list
3、of energy sources.a coal power Station(燃煤发电站燃煤发电站)non-renewablecoalwind power(风力风力)renewable Oil(an oil refinery)炼油厂炼油厂non-renewablerifainri精炼厂精炼厂 solar-energyrenewable nuclear energy (a nuclear power plant核电站核电站)natural gas Plant waste hot springs(温泉温泉)the sea(tidal energy潮汐能潮汐能)Water(hydro-electri
4、c power)non-renewablerenewablerenewablerenewablerenewablenon-renewablemore sources of energy renewable or non-renewable1.consume energy 2.greenhouse3.greenhouse gases4.the greenhouse effect5.degree Fahrenheit6.degree Celsius7.atmosphere8.fossil fuel9.carbon dioxide10.renewable source11.non-renewable
5、 source12.Natural resources消耗能源消耗能源温室温室温室气体温室气体温室效应温室效应华氏度华氏度摄氏度摄氏度大气层大气层化石燃料化石燃料二氧化碳二氧化碳可再生资源可再生资源不可再生资源不可再生资源天然资源天然资源Related words:frnhait selsis Now that we have learned some sources of energy are non-renewable,What should we do with energy?-We should save energy and thus reduce the emission(排放)o
6、f greenhouse gases.a greenhousePre-readingWhat is a greenhouse made of?How does it work?It is made of _and plants can grow in it when its cold outside,because the glass_ the heat_ the sun and keeps it from _.This makes the greenhouse _ _and so the plants can grow throughout the cold period.glass tra
7、psfromescapingheat up What function do greenhouse gases play?Greenhouse gases perform the same function as _of a glasshouse.They _heat from the sun and keep the air s_the earth warm,which is called _effect.温室效应温室效应Do we need those gases?Without the“greenhouse effect”,what would happen?The earth woul
8、d be about 33 cooler than it is.the glass trapurroundingthe greenhouse The Earth is Becoming Warmer-But Does It Matter?1)Howmanyparagraphsdoesthereading2)Whatarethetwographsabout?3)Whatskillsareusedinthefourparts?Read the passage quickly(3)textconsistof?Pleasenumberthem.Fast-ReadingWhatarethetwograp
9、hsabout?ThefirstgraphshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.Thesecondgraphshowsthecarbondioxidecontentintheatmospherefrom1957to1997.Mainideasofeachpart:skillsPart1Part1(1)(1)Introduceadebateovertheissueofglobalwarming.raisingaquestionPart2Part2(2-5)(2-5)Howglobalwarmingcom
10、esabout.giving examples,usinggraphs,explanation Part3Part3(6)(6)Listtwodifferentattitudesamongscientiststowardsglobalwarming.Part4Part4(7)(7)Itsuptoreaderstothinkanddecidewhetherpeopleshoulddosomethingaboutglobalwarmingornot.givingexamples,makingcontrastleavingaquestion Whowritesthisarticle?SophieAr
11、mstrongofEarth CareWhatroseaboutonedegreeFahrenheit?Thetemperatureoftheearth.Careful readingPart1Part1(1)(1)Introductionofglobalwarming.2._1._Part2Part2(2-5)Howglobalwarmingcomesabout?theburningoffossilfuels humanactivityCarbondioxideMethaneWhataretheGreenhousegases?1.2.3.WatervaporPart3Part3(6)(6)W
12、hat are the effects of global warming?variseinthesealevelvSeverestorms,droughts,famines,thespreadofdiseases,andthedisappearanceofspeciesvMakeplantsgrowfaster1.The different ideas between Dr.Janice Foster&George HambleyDr.JaniceFoster GeorgeHambleyCarbondioxidehascausedtheglobaltemperatureto_.Anincre
13、aseoffivedegreeswouldbea_andcouldbe_.Morecarbondioxideisa_thing,whichmakescrops_moreandwillencourage_.go upcatastrophevery seriouspositiveproduceagreaterrangeofanimalsA statement:We should do nothing about global warming.Agree or disagree?Why?Group-discussion:Save energy:for example_Traffic:Recycle
14、waste(bottle,can,plastic bags),circumstances permittingBuy some energy-saving thingsPlant treesTry to advocate something about global warmingNew words and expressions:come about:be at random:subscribe to:quantities of:go up:result in:be opposed to:even if:keep on:on the whole:on behalf of:put up wit
15、h:发生;造成发生;造成随机的;任意的随机的;任意的同意,赞成;订购;捐献同意,赞成;订购;捐献大量的大量的上升;增长;升起上升;增长;升起导致;造成导致;造成反对反对即使;尽管即使;尽管继续继续大体上;基本上大体上;基本上代表代表一方一方忍受;容忍忍受;容忍Para 1:but it is a rapid increase when it is compared to other natural changes._ with the size of the whole earth,the biggest ocean doesnt seem big at all.A.Compare B.Whe
16、n comparing C.Comparing D.When comparedD解析:when the biggest ocean is compared with the size of the whole earth,the biggest ocean doesnt seem big at all.Comparevt.1)比较比较;对照对照comparewith表示表示“把把与与相比相比(同类相比同类相比)”如:如:Compareyouranswerswithyourpartners,andyoumayfindthecorrectanswer.2)喻为喻为;比拟比拟compareto表示表
17、示“把把比做比做(异异类相比类相比,比喻比喻)”如:如:Ateacherisoftencomparedtoacandle.知识拓展知识拓展becomparedto/with与与相比相比,一般在句子中作状语。一般在句子中作状语。Comparedto/withmanywomen,eabout:发生发生,造成造成,相当于相当于happenHowdidthiscomeabout?Withthereformandopening-uppolicy,eout出现出现;传开传开;出版出版comeover来访来访comeacross偶遇偶遇cometov.想起;共计Whenhecametoandraisedhi
18、shead,hesawBarney.2.Sohowhasthiscomeaboutanddoesitmatter?comeabout是不及物短语。如:是不及物短语。如:Pleasetellmehowtheaccident_.Iamstillinthedark.A.camebyB.cameoutC.cametoD.cameaboutDPara2:there is no doubt that the earth is becomingdoubt1)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为为n.多接多接whether(一般不用一般不用if代替代替)同位语从句。
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