人教版高中英语教案选修六Unit4GlobalwarmingPeriod4

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