湖北省武漢市第十四中學(xué)2016年高二英語選修6教案Unit4Period1

1、學(xué)必求其心得，業(yè)必貴于專精Unit4Globalwarming第一部分授課方案說明Aboutthe本單元的話題是“Globalwarming/全球變topicand暖”,介紹了“能源、“能源危機(jī)”和“溫the室效應(yīng)”。單元句法項(xiàng)目仍舊是it用法。structures授課方案在單元課時(shí)劃分上與課本保持單元話題一致，即“閱讀課、知識課、運(yùn)用課三課和結(jié)構(gòu)時(shí)/三課型劃分”。但在實(shí)質(zhì)授課過程中，我們建議教師依據(jù)學(xué)生基礎(chǔ)、授課條件、學(xué)校安排的因素，對課本、對授課方案重新劃分課時(shí)、裁剪、拼接使用我們供應(yīng)的資料,以便“物盡所用”，達(dá)到最正確授課收效。教師也可以參照我們提出的“實(shí)質(zhì)授課過程課時(shí)劃分建議”進(jìn)行授課

2、。Period1WarmingUp引導(dǎo)學(xué)生鑒別和辨別英國英Reading語和美國英語，進(jìn)而對英語在各樣變體獲閱讀課得一個(gè)初步的感性認(rèn)識。Prereading要修業(yè)生看圖列表，回答有關(guān)“能源的用途”、“能源的本源”、“可再生能源”等方面的問題，為閱讀后邊的短文做背景、詞語和結(jié)構(gòu)的準(zhǔn)備。補(bǔ)充：能源利用效率反響了國家社會生產(chǎn)力水平，學(xué)必求其心得，業(yè)必貴于專精能源花銷水平反應(yīng)人民生活質(zhì)量，能源產(chǎn)業(yè)結(jié)構(gòu)的優(yōu)化是經(jīng)濟(jì)發(fā)展的加速器。Reading“地球變暖:結(jié)果嚴(yán)重嗎?是篇說明文，商議了地球變暖的原因、地球變暖的結(jié)果等方面的問題。教師應(yīng)該引導(dǎo)學(xué)生從形式和內(nèi)容兩方面閱讀本文，提高對說明文文體的認(rèn)識,同時(shí)認(rèn)識“

3、溫室效應(yīng)”的前因結(jié)果。經(jīng)過學(xué)習(xí)學(xué)生應(yīng)該理解：大氣中的二氧化碳濃度增加，阻攔地球熱量的散失,使地球發(fā)生可感覺到的氣溫高升,這就是有名的“溫室效應(yīng)”。促使地球氣溫高升的氣體稱為“溫室氣體”。二氧化碳是數(shù)量最多的溫室氣體，約占大氣總?cè)萘康?。03%.Period2Learningaboutlanguage第一部分是詞法訓(xùn)Learning練，增強(qiáng)學(xué)生對本單元重點(diǎn)詞匯、短語的about掌握和合用；第二部分是句法訓(xùn)練,進(jìn)一步language增強(qiáng)學(xué)生對英語“it用法的理解和運(yùn)用。知識課Period3Usinglanguage重點(diǎn)是閱讀“對全球變暖我Using們可以做些什么?”；寫作部分要修業(yè)生“倆langu

4、age倆”活動，運(yùn)用所學(xué)詞語、結(jié)構(gòu)和話題知運(yùn)用課識編寫“減少大氣二氧化碳排放量的各樣學(xué)必求其心得，業(yè)必貴于專精方法”;“聽、談?wù)摬糠值谝粐@“能源多樣化聽一個(gè)采訪錄音,爾后公布自己的見解.補(bǔ)充“歷史上的能源危機(jī)”：1973年能源危機(jī)原因：石油輸出的主要力量為阿拉伯國家，他們因不滿西方國家支持以色列而采用石油禁運(yùn)而以致此次危機(jī).1979年能源危機(jī)原因：伊朗革命爆發(fā).1990年石油價(jià)格狂漲原因：波斯灣戰(zhàn)爭。2004年石油價(jià)格上漲原因：多種原因以致。實(shí)質(zhì)授課過程課時(shí)劃分建議Period1將WarmingUp、Prereading、Reading和Comprehending整合在一起上一節(jié)“閱讀課”。

5、Period2將Learningaboutlanguage和Workbook中的USINGWORDSANDEXPRESSIONS、USINGSTRUCTURES整合在一起上一節(jié)“語言知識課”.Period3將Usinglanguage設(shè)計(jì)為一節(jié)包括聽聞讀寫單項(xiàng)技術(shù)或組合技術(shù)訓(xùn)練的“綜合技術(shù)課(一)”。Period4將Workbook的READINGANDLISTENING和TALKING整合在一起上學(xué)必求其心得，業(yè)必貴于專精一節(jié)“聽聞?wù)n”。Period5將Workbook的LISTENINGTASK、READINGANDWRITINGTASK和SPEAKINGTASK整合為一節(jié)“綜合技術(shù)課(二

6、)”。第二部分授課資源說明Section1Background背景Section2Explanation剖析Section3圍繞單元話題“全球變暖”我們供應(yīng)了若干合用性背景資料。這些資料既可以作為教師授課參照資料為教師所用，也可以直接或改寫、重組后作為課堂內(nèi)外的拓展性閱讀資料表現(xiàn)給學(xué)生。重點(diǎn)針對“閱讀課型”中的課文難句,我們供應(yīng)了詳盡的，就句論句的剖析和翻譯,并且以剖析的焦點(diǎn)話題為線索，進(jìn)行了一定的歸納、辨析和總結(jié),以幫助教師更好地推行“語言形式”的授課.依據(jù)課本單元詞匯表序次，我們重點(diǎn)供應(yīng)Vocabulary動詞、短語搭配的講解.所供應(yīng)的例句，經(jīng)詞匯典、地道、合用、易懂，完好可以直接用于授課

7、。第三部分學(xué)必求其心得，業(yè)必貴于專精圍繞單元詞法、句法項(xiàng)目，我們供應(yīng)了長短不一的“單元授課測評”，并備有參照答案供教師使用。有些測評題目直接源于歷年高考試卷,更擁有說服力和合用性。Part1TeachingDesign第一部分授課方案Period1Asamplelessonplanforreading(THEEARTHISBECOMINGWARMERBUTDOESITMATTER？)IntroductionInthisperiod,afterthewarmingup，studentswillbeguidedtoreadaloudtotherecording,readandunderline，r

8、eadaloudandtranslate，readandtransforminformation,understanddifficultlanguagepointsandretellthetext.Theclasswillendbystudentstakingaquiz.Three“WarmingUp”designsarepresentedinthisbookforteachersreference。Computerandoverheadprojectormaybeusedtoaidtheteachingandlearning。Objectives學(xué)必求其心得，業(yè)必貴于專精Tohelpstud

9、entslearntoexpressagreementanddisagreement/blameancomplaintTohelpstudentslearntoreadanexpositionaboutglobalwarmingTohelpstudentsbetterunderstand“theimportanceofprotectingthearth”TohelpstudentslearntousesomeimportantwordsandexpressionsTohelpstudentsidentifyexamplesof“itinthetextFocusWordscompare,stat

10、eglancedecreaseExpressiocompareto,comeabout,quantitiesofnsresultinbuildup,keepon,onthewholemakeadifference,putupwith,solongas,andsoonPatternsbutitcouldbeasmuchas5degreesCelsius.ThereisnodoubtthattheearthisbecomingwarmerSomebyproductsofthisprocessarecalled“greenhousegasesthemostimportantonebeingcarbo

11、ndioxide.Anincreaseoffivedegreeswouldbeacatastrophe,IwouldsayTheseshouldgetyoustartedwithyour學(xué)必求其心得，業(yè)必貴于專精project。Rememberyourcontributioncounts。AidsMultimediafacilities,tape-recorder，photos,diagramsProceduresWarmingupWarmingupbydefiningenergyHello,everyone。Whatstheweatherliketoday？Hot？Yes，itishot,b

12、ecausetheglobeiswarmingupfast.Butwhatleadstoglobalwarming？Thatsright。Itistheburningoffossilfuelslikecoal,naturalgasandoiltoproduceenergythatmakestheglobewarmup.Itisenergythatwarmsuptheglobe。Butwhatisenergy?Energyisafundamentalquantitythateveryphysicalsystempossesses；itallowsustopredicthowmuchworkthe

13、systemcouldbemadeto，doorhowmuchheatitcanproduceorabsorb.Inthepast，energywasdiscussedintermsofeasilyobservableeffectsithasonthepropertiesofobjectsorchangesinstateofvarioussystems。Basically，ifsomethingchanges,somesortofenergywasinvolvedinthatchange。WarmingupbylearningaboutformsofenergyHello，weshalltak

14、eUnit4Globewarmingtoday.Theglobeiswarmingupfastbecausemoreandmoreenergyisbeingused.Butwhatarethedifferentformsofenergy?學(xué)必求其心得，業(yè)必貴于專精Lightenergy光能Heatenergy熱能Soundenergy聲能Chemicalenergysource化學(xué)能源Nuclearenergy核能Internalenergy內(nèi)能Kineticenergy動能Potentialenergy勢能WarmingupbyreadingandansweringBeforewetaket

15、hisnewunit,letsreadtheinstructiontothemoviesTheDayAfterTomorrow，andtrytoanswerthefollowingquestions:Haveyouseenthemovies？Ifso，howdoyoulikeit?Whatwouldtheworldlooklikeifitlostitsbattleagainstthegreenhouseeffectandglobalwarming？TheDayAfterTomorrow（后天)showsaglobaldisasteranddestructionthankstotheweathe

16、r.Inthemovie,JackHall，aweatherscientist,isthefirstmantorealizethatanewiceageiscoming.Inoneofseveralnaturaldisasters,hissonSambecomestrappedinNewYorksPublicLibrarywhenatidalwavestrikesthecity.Jackisforcedtofightagainstrapidlydroppingtemperaturesandapackofhungrywolveswhichescapedfromthezoo。Meanwhile,J

17、ackmustthinkofwaystosavehisson,himselfandthewholeworld.Hemustfollowahardpathnorth,aseveryoneelseracessouthtoliveinwarmerclimates.Thisfilmalsobringsadirectattackontherefusalofthe學(xué)必求其心得，業(yè)必貴于專精USgovernmenttoreducegreenhousegasemissions.ItishopedthatTheDayAfterTomorrowmayencourageachangeinthegovernments

18、attitudetowardsenvironmentalprotection。2.PrereadingbytalkingandsharingNowlookatthewordGREENHOUSEGASES.Whatdoesitmean?Greenhousegases(GHG)aregaseouscomponentsoftheatmospherethatcontributetothegreenhouseeffect.Themajornaturalgreenhousegasesarewatervapor，whichcausesabout3670ofthegreenhouseeffectonEarth

19、(notincludingclouds）；carbondioxide,whichcausesbetween926%;andozone,whichcausesbetween37(notethatitisnotreallypossibletoassertthatsuchand-suchagascausesacertainpercentageoftheGHE，becausetheinfluencesofthevariousgasesarenotadditive.Thehigherendsoftherangesquotedareforthegasalone;thelowerend,forthegasc

20、ountingoverlaps）.Naturallyoccurringgreenhousegasesincludewatervapor,carbondioxide,methane，nitrousoxide,andozone.Certainhumanactivities，however，addtothelevelsofmostofthesenaturallyoccurringgases。ReadingReadingaloudtotherecordingNowpleaselistentoandreadaloudthetexttoitsrecording.Payattentiontothepronu

21、nciationofeachwordandthepauseswithineachsentence。I學(xué)必求其心得，業(yè)必貴于專精willplaythetapetwiceandyoullreadaloudtwice,tooReadingandunderliningWordsareimportant.Expressionsaremoreimportant.SonextyouaretoreadthetextandcircleatthesametimealltheusefulexpressionsorcollocationsinthepassageCopythemtoyournotebookafters

22、choolashomeworkCollocationsfromTHEEARTHISBECOMINGWARMEDOESITMATTER?riseabovesixtenthsofadegreeCelsius,soundmuchtobecomparedtocomeaboutexplorequestionsthereisnodoubtthatfiercedebateovercauseglobalwarminganaturalphenomenon,causetheincreaseinthroughtheburningoffossilfuels,produceenergywarmtheearth,beab

23、outthirtythreedegreesCelsiuscooleraddtobe,trappedin,increasegreatlyover,makeaccuratemeasurementsofresultin,differentattitudestowards,risebyseveralmetersconcernabut,withfewbutbadenvironmentalconsequences,apositivethinggrowfaster,encourageagreaterrangeofin,builduptheatmosphere,reducetheamountofkeeponi

24、ngReadingaloudandtranslatingTranslationisausefultoteachingandlearningofEnglish.Itmakesyou學(xué)必求其心得，業(yè)必貴于專精betterunderstandthestructureofEnglish。NextwearegoingtoreadaloudthetextandtranslateitintoChinese。Wemaytranslateitwordforword,sentenceforsentence。ReadingandtransforminginformationTounderstandthemainid

25、eaofthetext，wearegoingtoreaditonceagain.Underlinethekeysentenceofeachparagraphatthesametimetodecideonthetypeofwritingandsummaryofthetext.TypeofwritingandsummaryofthetextTypeofwritingThisisapieceofdescriptivewriting。MainideaoftheIttellshowtherisingofearthspassagetemperaturecomesaboutandhowpeoplerespo

26、nddifferentlytoit.Keyphraseof1stadebateovercausesofglobalwarmingparagraphKeyphraseof2ndcarbondioxidebeingoneofparagraph“greenhouse”gasesKeyphraseof3rd“greenhouseeffect”causingglobalparagraphtemperaturetogoupKeyphraseof4thlevelsofcarbondioxideupovertheparagraphlastcenturyKeyphraseof5thdifferentattitu

27、destowardsthecausesparagraph學(xué)必求其心得，業(yè)必貴于專精Keyphraseof6thparagraphKeyphraseof7thparagraphKeyphraseof8thparagraphKeyphraseof9thparagraphthKeyphraseof10paragraphthKeyphraseof11paragraphwarmingtobeaslowas1to1。5degreesCelsiusorasmuchas5degreesCelsiusanincreaseoffivedegreesbeingacatastrophefuturewarmingcau

28、singthesealeveltorisewarmingtobemildwithfewbadenvironmentalconsequencesmorecarbondioxidetobeapositivethingtheeffectsofglobalwarmingbeinguncertain5。UnderstandingdifficultlanguagepointsArethereanysentencesorwords，difficulttoyou?Nowdiscusswithyourpartnerthedifficultpoints。Youmayputyouquestionstomeaswel

29、l。6。RetellingthetextRetellingcanbemadeeasyifitisdonewiththehelpofthekeysentencesfoundinthetext。Taketurnstoretellthetextingroupsoffour.7.ClosingdownbytakingaquizToendthisperiodandtocheckyourlearningofthistextIamgoingtogiveyouthisquiz.學(xué)必求其心得，業(yè)必貴于專精Whatcanwedoaboutglobalwarming?Firstly，governments1_sup

30、portresearch。Forexample,theyshould2_companiestodevelopvehiclesthat3_lesspollution。Theyshouldalsosupportalternative4_ofelectricityfromwind5_waterratherthanfromoilandcoal。Aswell,6_shouldsponsorconferencesto7_theeffectsofgreenhousegasemissionsand8_solutionstotheproblem.Secondly，theyshould9_lawsthatlimi

31、ttheamountofgreenhouse10_thatcompaniescanemit.Private11_shouldberewardedforfollowingtheselaws。12_shouldalsobepunishedforcreatingpollution.Finally,everybody13_affectedbyglobalwarming.Therefore,itis14_thatgovernmentsinvolveindividuals15_theproblemsolvingprocess。For16_theyshouldencouragehouseholdsto17_

32、asmuchenergyaspossiblebyusing18_efficientlightbulbsorlesshot19_.Theyshouldalsoencouragethepublicto20_，andthisshouldbecompulsory21_everyone。Anotherwayofsavingenergyis22_publictransportsystems。學(xué)必求其心得，業(yè)必貴于專精Governmentsshould23_moneyonpublictransporttomakeitas24_aspossibleforthepublictosaveenergy。Keys:1

33、can2encourage3cause4sources5and6they7discuss8possible9make10gases11companies12They13is14important15in16example17save18more19water20recycle21for22by23spend24easy）Answerquestionsaboutglobalwarming。1.Whatisthegreenhouseeffect，andisitaffectingourclimate?Thegreenhouseeffectistheresultofheatgatheringbycertaingasesintheatmosphereandre-radiationdownwardofsomeofthatheat.Withoutanaturalgreenhouseeffect，thetemperatureoftheEarthwouldbeaboutzerodegreesF（-18C)insteadofitspresent57。F(14C）2。Aregreenhousegase