人教版高中英语教案选修六Unit4GlobalwarmingPeriod4

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1Period4ListeningandSpeaking整体设计教学内容分析Theemphasisofthisperiodwillbeplacedonlisteningandspeaking.Therearealtogethertwotextsforthestudentstolistentointhisperiod:oneisintheStudent'sBookandtheotherisintheWorkbook.Thefirstone(onPage31,Listeningandspeaking)isaconversationbetweentwopeople,LiBinandProfessorKeeling,whoisascientiststudyingglobalwarming.ProfessorKeelinghasbeenmentionedinthereadingpassageonPage26.Thelisteningtextisaradiointerviewabouttheuseoffossilfuelsandothersourcesofenergy.Itcontainsexamplesofthefocusfunctionforthisunit:agreementanddisagreement.WhilelisteningtoPart1forthefirsttimethestudentsareaskedtodecidewhichstatementinExercise1ProfessorKeelingdoesNOTagreewith.ThenstudentsarerequiredtolistentoPart1againandticktheenergysourcesthatarementionedinthetext.AfterlisteningtoPart2studentsareaskedtolistthreethingstheycandotosaveenergy.AtlasttheyshouldalsolistentoPart2againandfillintheblanksinExercise4.Thesecondone(onPage65,ListeningTask)involvesanenvironmentalorganization.Astudent,Tom,isgivinganoralpresentation.Aswithmostoralpresentationsthatstudentsgive,Tomhassomevisualaidstogowithhistalk.Studentswillfirstberequiredtolistentothewholespeechtogetthegeneralidea,andthenlistenagainandtakesomenotesaboutsomefactsmentionedinthespeech.三维目标设计Knowledgeandskills1.Tounderstandthemeaningsofthefollowingkeywordsandexpressionswhilehearingtheminthetape:fossilfuels(化石燃料),industrialsocieties(工业化社会),concentrated(浓缩的),radiation(辐射),economical(经济的),globalcommunity(地球村),cigarettebutts(烟蒂),commitment(承诺),inspiration(启发).2.Toenablethestudentstounderstandthelisteningtexts.3.Tohelpthestudentslearnhowtoexpressagreementanddisagreement.Processandmethods1.Smoothingawaylanguageproblemsifanybeforelistening.Beforeaskingthestudentstolistentothetape,helpthemtosmoothawayanylanguageproblemssuchasnewwordsandexpressionsthattheymaynotunderstandwhilelistening.2.Listeningforneededinformation.Beforeaskingthestudentstolistentothetapeforthefirsttime,givethemoneortwoquestionsaboutthegeneralideaofthetextsoastoleadthestudentstoconcentrateonlyontheneededinformation.Thenaskthemtolistentothetapeforasecondorevenathirdtimeforsomespecificinformationbygivingthemsomedetailedquestionstoanswer.3.Speakingfreelyandmakingconversations.Atlastthestudentsmaybeaskedtogivetheirownpointsofviewandattitudestowardsthesubjectmentionedinthetext.Emotion,attitudeandvalue1.Tostimulatestudents'spiritofcommunicationandcooperation.2.Todevelopstudents'abilityofenjoyinglanguagebeauty.2教学重、难点1.Theunderstandingofthelisteningtext.2.Theexpressingofagreementanddisagreement.教学过程1Revision1.RetellthetextonP26-P27.2.Checkthelastperiod'shomeworkandexplainthedifficulties.2Pre-listening1.Showthefollowingpicturestothestudentsandaskthemtotellwhichkindofenergyeachpictureshows.Picture1____________Picture2____________Picture3____________Picture4____________Suggestedanswers:Picture1:tide;Picture2:windpower;Picture3:solarenergy;Picture4:nuclearenergy2.Tellthestudentstothinkoverandtellwhichenergyisthemostwidelyusednowandwhatareitsadvantagesanddisadvantages.________________________________________________________________________Suggestedanswers:Solarenergyisthemostwidelyusednow.Itsadvantagesareenvironmentallyfriendlyandrenewable.Itsdisadvantageisthattheequipmentistooexpensive.3Listening1.ListentoPart1ofText1(Page31)andfinishthefollowingexercises.(1)HowlongdoesProfessorKeelingthinkfossilfuelswilllast?A.Severalyears.B.Onlyafewyears.C.Centuries.(2)Whatisthedisadvantageofnuclearenergy?A.Itisdangerous.B.Itproducescarbondioxide.C.Thereisn'tenoughforit.(3)Whatmakesitimpossibleforustousesunpoweratpresent?A.Thedanger.B.Thetechnology.C.Beingclean.Suggestedanswers:(1)C(2)A(3)B2.ListentoPart1ofText1again(Page31)andticktheenergysourcesthatarementioned.Completethenotesonthem.SourcesofenergyNotesFossilfuelsWindpower[来源:学科网]Energyfromthesun[来源:学。科。网]Nuclearpower3Suggestedanswers:SourcesofenergyNotesFossilfuels●producecarbondioxide●cheapandconcentratedformofenergyWindpower●clean●notpractical:needhugeareasoflandtoprovideenoughenergyEnergyfromthesun●clean●notverypracticalwithpresenttechnologyNuclearpower●doesn'tproducecarbondioxide●dangerous3.ListentoPart2ofText1(Page31)andchoosethebestanswerstothefollowingquestions.(1)HowmanysuggestionsdoesProfessorKeelingoffer?A.2B.3C.4(2)Whichofthefollowingistoblameforglobalwarming?A.Developingcountries.B.Developedcountries.C.Poorcountries.Suggestedanswers:(1)B(2)B4.ListentoText2(Page65)forthefirsttimeandcatchitsmainideaandthensummarizeeachpart.Mainidea:_________________________________________________Part1:______________________________________________________Part2:_____________________________________________________Suggestedanswers:Mainidea:ThetalkismainlyaboutCleanUpAustraliaDayanditsorganizerIanKierman.Part1:HowIanKiermanbeganCleanUpAustraliaDay.Part2:CleanUptheWorldDayandIanKierman'scontributiontoimprovingtheenvironment.5.Listentothewholetalkagain.AskstudentstonoticetheyearsthatTommentions,whathappenedintheseyearsandmanyotherfacts.Makenotesinthefollowingtable.YearEventFactsaboutthee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