【課件】選修六Unit 4 Reading(公開課)

Unit4ReadingWhatdothesepictureswanttotellus?globalwarmingTheearthisbecomingwarmerTheEarthIsBecomingWarmer--ButDoesItMatter?Theearthisbecomingwarmer.Doesitmatter?Para.2-5Para.6(twodifferentattitudes)Thepurposeofthefirstparagraphisto___.introducethewriterB.explainachangeC.introducethetopicD.raiseaquestionWhydoesthewriterendupthelastparagraphwithtwoquestions?A.Becausethewriterwantstoraisethequestionforthereaderstothinkover.B.Becausethewriterwantstoappealtothereaderstopreventglobalwarming.C.Becausethewriterwantstoarousethereaders’curiosity.D.Becausethewriterdoesn’thaveanyideaofglobalwarming.ThestructureofthetextPartIPartII

PartIIIPartIV(para.1)(para.2-5)(para.6)(para.7)introductionthecausetwoattitudesaquestionPartII(para.2-5)AskingandAnsweringWhatHowWhenWhoHowmanyPartII(para.2-5)1.Whatcausestheincreaseoftheearth’stemperature?Theburningoffossilfuelslikecoal,naturalgasandoilcausestheincreaseoftheearth’stemperature.2.Howistheearthwarmed?Theearthiswarmedwhensmallamountsofgasesintheatmosphere,likecarbondioxide,methaneandwatervapor,trapheatfromthesun.3.Whendoestheproblembegin?Theproblembeginswhenweaddhugequantitiesofextracarbondioxideintotheatmosphere.4.Whomadeaccuratemeasurementsoftheamountofcarbondioxideintheatmospherefrom1957to1997?CharlesKeeling.5.How

manydegreesCelsiuswillthetemperatureincreasegoatmostoverthenext100yearsaccordingtoDrFoster?5degreesCelsius.PartIII(para.6)twoattitudesscientistopinionpossibleresultsDrFosterGeorgeHambleya__________a______thingariseof______________inthesealevel2.Severe________,______,________,famines3.Spreadof______4.Disappearanceof________Plantswill____________Cropswill____________Itwill___________________ofanimalscatastropheseveralmetresfloodsstormsdroughtsdiseasesspeciespositivegrowquickerproducemoreencourageagreaterrange觀點(diǎn)對(duì)比PartI:PartII:PartIII:PartIV:introductionthecausetwodifferentattitudesaquestion陳述現(xiàn)象/問題分析原因不同態(tài)度

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個(gè)人觀點(diǎn)陳述現(xiàn)象/問題Thereisnodoubtthat…分析原因…isdueto…不同觀點(diǎn)However,theattitudesofsb.towardsstharecompletelydifferent.Ontheonehand,sbthinkthat…Ontheotherhand,therearethosewhoareopposedtothisviewandbelievethat…Itistrue/afactthat…Thereasonwhy…isthat…Opinionsonthemattervaryfrompersontoperson.個(gè)人觀點(diǎn)：Inmyopinion,…/Frommypointofview…AsfarasIamconcerned…觀點(diǎn)對(duì)比DiscussionTopic1:Shouldstudentstakemobilephonestoschool?Topic2:Whetherstudentsdopart-timejobsisgoodorbad?Topic3:Israisingpetsagoodthing