2017年秋人教版高中英语选修六学案：UNIT 4 GLOBAL WARMING PERIOD 1 WARMING UP AND READING-第一文库 | 海量文档资源下载与分享平台

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Book6Unit4GlobalwarmingPeriod1Warmingupandreading编者：王海虹修编：李慧学习目标1.理解课文，能了解温室效应对环境的影响。2.通过课文的学习，提高阅读能力，提高学生的节能减排意识。3.掌握与本课阅读有关的重点词汇，分析背诵课文中部分经典的句子。自主合作探究【探究1】Ⅰ.篇章结构.阅读P26－27的Reading部分，完成下列表格Duringthe20thcenturythetemperatureoftheearthroseabout1.degreeFahrenheit.Theburningof2._____likecoal，naturalgasandoiltoproduceenergy.Thelevelsofcarbondioxidehave3．greatlyoverthelast100to150years.CharlesKeelingfoundthatthecarbondioxideintheatmospherewentupfromaround4.partstoaround370partspermillionbetween1957and1997.DrJaniceFostersaysthattheamountofwarmingcouldbeaslowas1to1.5degreesCelsius，butitcouldbeashighas5degreesoverthenext5.___years.TheclimatecouldbeveryseriousAriseofseveralmetresinthe6..Severestorms，floods，7．，famines.Thespreadofdiseases.Thedisappearanceof8.______.Weshouldnotworryabouthighlevelsofcarbondioxideintheair.Itwillmakeplantsgrow9.；cropswillproduce10.；itwillencourageagreaterrangeofanimals.Ititwillencourageagreaterrangeofanimal【探究2】II.正误判断。（）1)Thetemperatureinthelastcenturydidn’tseemtoincreasemuchcomparedtoothernaturalchanges.（）2)Everyonebelievesthatglobalwarmingiscausedbytheactivitiesofhumans.()3)Iftherewerenogreenhouseeffect,theearthwouldbemuchcooler.()4)Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.()5)GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtohumanbeings.【探究3】III.语篇理解.阅读P26－27的Reading部分，选择最佳答案1．Howmuchdidthetemperatureriseinthe1900s?A．OnedegreeFahrenheit.B．OneCelsius.C．Twodegrees.2．Whatcausesthetemperatureoftheearthtoincrease?A．Cuttingtrees.B．Wastingthefarmland.C．Burningfossilfuels.3．Whoaccuratelymeasuredtheamountofcarbondioxideintheatmospherefrom1957to1997?A．DrJaniceFoster.B．CharlesKeeling.C．Fahrenheit.4．AccordingtoGeorgeHambley，.A．globalwarmingisaveryseriousproblemB．there'snoneedtoworryaboutglobalwarmingC．thelevelsofCO2intheairwillbecomelowerinthefuture5．Wecaninferfromthetextthat.A．thedebateabouttheeffectsofglobalwarminghasnotbeensettledB．thegreenhouseeffectistheresultofpeople'sactionsC．allsc