高中英语人教新课标选修6教案：Unit4 Global warming Period 6

Period6　SummingUp，LearningTipandAssessment教学内容分析　　　Thisisthelastteachingperiodofthisunit，sotheemphasisshouldbeplacedongoingoverandsummarizingwhathasbeenlearnedinthisunit.Itincludesthefollowingparts：SummingUp，LearningTip，CheckingYourselfandsomeotherconsolidationexercises.SummingUpsummarizesthewholeunitfromtheaspectsoftopicsandvocabularyandgrammar.Theteachercanfirstusethisparttoletstudentssumupwhattheyhavelearnedinthisunitandthenletthemfindoutwhattheycan'tunderstandverywell.LearningTipgivesstudentsinstructionsonwhichkindofnounsbeginwithacapitalletter.Letthestudentsthinkaboutwhattheyalreadyknowabouttherulesandwhatnewinformationtheywillfind.CheckingYourselfonPage68intheWorkbookaimsatencouragingstudentstomakeaself－assessmentaftertheyfinishlearningthisunit.Itisveryimportanttoimprovetheirlearning.Ofcourse，atestingassessmentisalsoneeded.Inthisperiod，theteachercanalsoprovidemorepracticetoconsolidatewhatstudentshavelearnedinthisunit.三维目标设计　　　Knowledgeandskills1．Togetstudentstomasteralltheusefulnewwordsandexpressionsinthisunit.2．Tohavestudentsunderstandthenewgrammaritem“theuseof‘it’(2)”better，andenablethemtousethesentencepatternscorrectly.3．Todevelopthestudents'abilitytousetheimportantlanguagepointsinthisunit.ProcessandmethodsDesignsomeadditionalexercisesforstudentstodoinorderthattheycanlearntouseandgraspallthecontents.Emotion，attitudeandvalue1．Toencouragestudentstolearnmoreaboutglobalwarmingandenvironmentalprotection.2．Toinspirethestudentstothinkupmoreeffectivemeasurestopreventglobalwarming.教学重、难点　　　Usingwhattheyhavelearnedinthisunittosolverealproblems.Step1　Revision1．Checkthehomeworkexercises.2．Dictatesomeusefulnewwordsandexpressionsinthisunit.Step2　Lead－inAskthestudentstoturntoPage32.Thinkaboutwhattheyhavelearnedinthisunitandticktheboxestoseehowwelltheyhavelearnedthem.Step3　SummingupFiveminutesforthestudentstosummarizewhattheyhavelearnedinthisunitby6,themselves.Thencheckandexplainsomethingwherenecessary.Suggestedanswers：Writedownwhatyouhavelearnedaboutglobalwarming：(Students'answersmayvary.)ThetemperatureoftheearthroseaboutonedegreeFahrenheitduringthe20thcentury.Itishumanactivitythathascausedthisglobalwarming.Allscientistssubscribetotheviewthattheincreaseintheearth'stemperatureisduetotheburningoffossilfuels.Somebyproductsofthisprocessarecalledgreenhousegases，whichtrapheatandwarmtheearth.Withoutthegreenhouseeffect，theearthwouldbecoolerthanitis.Butscientistsdon'tagreewitheachotherontheeffectsofglobalwarming.Somethinkitwillbeadisaster，butsomeothersthinkit'sagoodthingandwecandonothingtopreventthetrend.Byreadingthesecondpassage，wealsoknowsomeeasyandeffectivemeasureswecantaketodealwithglobalwarming.Fromthisunityouhavealsolearned：Someusefulwords：tend，oppose，state，glance，quantity，range，tendency，circumstance，opposed，steady，widespread，average，consume，subscribe，advocate，refresh，graph，phenomenon，fuel，data，trend，catastrophe，flood，consequence，existence，commitment，pollution，growth，motor，can，microwave，educator，contribution，presentation，disagreement，random，mild，outer，electrical，casual，nuclear，perSomeusefulexpressions：comeabout，subscribeto，quantitiesof，goup，resultin，beopposedto，evenif，keepon，onthewhole，onbehalfof，putupwith，solongas，andsoon，greenhouseeffectNewgrammaritem：theuseof“it”—howtouse“it”foremphasisinasentence.Functionalitems：howtoexpressagreementanddisagreement，blameandcomplaint.Step4　PracticeShowtheexercisesonthescreenorgiveoutexercisepapers.Part1　Vocabulary1．Researchersc______livingconditionsinLondonwiththoseinotherplaces.2．Theirpricesarelowc______tothoseinothershops.3．Idon'tthinkanybodym______toherapartfromherself.4．Heprefersq______toqualitywhenfoodisconcerned.5．Thed______wehavecollectedarenotenoughtobeconvincing.6．Everythingwasinas______ofdisorder.7．Whatisthea______rainfallforAugustinyourcountry?8．Eachi______boyintheclasshashisownpersonalities.9．Wehavebeenhavingafewa______inthecommitteelately.10．Theywerep______inthehistoryofmusic.11．Asac______ofbeinginhospital，Shellydecidedthatshewantedtobecomeanurse.12．Adoctorhasthet______“Dr”infrontofhisname.13．Thenumberofthechildrenintheschoolhasd______by500thisyear.14．Thecookerisn'tworkingbecauseofane______fault.15．Thefoodwascoldandtheguestsquarreled—thewholedinnerwasac______.Part2　Usefulphrases1．在20世纪期间____________2．导致____________6,3．另一方面____________4．通过燃烧化石燃料____________[来源:Zxxk.Com]5．大量的____________6．忍受污染____________7．有关系，有影响____________8．大体上，基本上____________9．高达5摄氏度____________10．发生____________Part3　Completethefollowingsentencesaccordingtothetexts.1．Anenergysourceisrenewablewhensuppliesofitnever____________.2．Itisarapidincrease______________________________.3．Thereis____________thattheearthisbecomingwarmingbutthereis__________________whetheritis__________________hascausedthisglobalwarmingorwhetheritis________________________.4．______thegreenhouseeffect，theearth____________aboutthirty－threedegreesCelsius________________________.5．The____________ofcarbondioxide______thatmoreheatenergyistrappedintheatmosphere______the______________________________.6．Itwas__________________CharlesKeeling______made__________________theamountofcarbondioxideintheatmospherefrom1957to1997.7．Theyalsobelieve____________theburningofmoreandmorefossilfuelsthatis____________thisincreaseincarbondioxide.8．Therearesomeverydifferent______amongscientists__________________.9．SometimesIfeelthat______can'thaveany__________________huge______problems.10．Finallyandmost______，talk______yourfamilyandfriends______globalwarmingandtellthemwhatyouhavelearned.11．Remember—your____________.Part4　Multiplechoice[来源:Zxxk.Com]1．Isit______toyouthatthegovernmentishavingahardtimenow?A．ofmuchimportant　　　　　　　　B．ofmuchconsequenceC．ofveryimportanceD．ofmuchconsequent2．Somethingmustbedoneto______theriverfrom______.A．stop；beingpollutedB．stop；pollutingC．prevent；pollutionD．keep；polluted3．There______quantitiesofapplesinthebasketandtherewas______milkinthebucket.A．were；anumberofB．was；quantitiesofC．was；agoodmanyD．were；aquantityof4．______wegetgoodweatheritwillbeasuccessfulholiday.Whichiswrong?A．SolongasB．ProvidedthatC．SolongD．Onconditionthat5．—Goforapicnicthisweekend，OK?—______.Ilovegettingclosetonature.A．Idon'tthinksoB．Ibelievenot6,C．Icouldn'tagreemoreD．Iamafraidnot6．—Now，whereismypurse?—______！Wewillbelateforthepicnic.A．ComeonB．Don'tworryC．TakeyourtimeD．Takeiteasy7．Itwasnotuntil1999______regularradiobroadcastbegan.A．whileB．whichC．thatD．since8．Canitbeintherestaurant______wehaddinnerlastSunday______youleftyourwallet?A．where；whereB．where；thatC．that；whereD．that；that9．—What'sthematterwithyou?—______thewindow，myfingerwascutunexpectedly.A．CleaningB．TocleanC．WhilecleaningD．WhileIwascleaning10．Theotherday，mybrotherdrovehiscardownthestreetat______Ithoughtwasadangerousspeed.A．asB．whichC．thereD．whatSuggestedanswers：Part1　Vocabulary1．compared　2.compared　3.matters　4.quantity　5.data　6.state　7.average　8.individual　9.agreements　10.phenomena　11.consequence　12.title　13.decreased　14.electrical　15.catastrophePart2　Usefulphrases1．duringthe19thcentury　2.leadto　3.ontheotherhand　4.throughtheburningoffossilfuels/byburningfossilfuels　5.agreatdealof/scoresof　6.putupwiththepollution7．makeadifference　8.onthewhole　9.asmuchasfivedegreesCelsius(5℃)　10.comeaboutPart3　Completethefollowingsentencesaccordingtothetexts.[来源:学.科.网Z.X.X.K]1．runout　2.comparedtomostnaturalchanges　3.nodoubt；fiercedebateover；humanactivitythat；justanaturalphenomenon　4.Without；wouldbe；coolerthanitis　5.increasedamount；means；causing；globaltemperaturetogoup　6.ascientistcalled；who；accuratemeasurementsof　7.itis；resultingin　8.attitudes；towardsthisissue　9.individuals；effectonsuch；environmental　10.importantly；with；about　11.contributioncountsPart4　Multiplechoice1～5BADCC　6～10ACBDDStep5　LearningtipAskthestudentstoturntoPage32.Readthroughthepassageandmakesuretheyunderstandit.EncouragethemtodoasthepassagetellsbecauseiftheyaredoingsotheywillbeteachingthemselvesausefulwayofusingEnglishwords.Step6　Assessment1．Checkingyourself(onPage68intheWorkbook)Firstgetthestudentstothinkaboutthesequestionsindividually.Thentheycandiscussin6,groupssharingtheirexperience.Theteachercanjoininandgivethemadviceandsuggestionswherenecessary.2．TestingassessmentMultiplechoice[来源:学科网ZXXK]1．______withthesizeofthewholeearth，thebiggestoceandoesnotseembigatall.A．CompareB．WhencomparingC．ComparingD．Whencompared2．Pleasetellmehowtheaccident______.Iamstillinthedark.A．camebyB．cameoutC．cametoD．cameabout[来源:学+科+网]3．Theaccident______thedeathoftwopassengers.A．resultedfromB．resultedinC．resultedofD．resultedwith4．ItisinthewestofChina______thereisnodoubt______itisgoingtoraintomorrow.A．where；whetherB．that；thatC．that；whetherD．where；that5．Itwas1969______theAmericanastronautssucceededinlandingonthemoon.A．thatB．whenC．onwhichD．which6．Itwas______backhomeaftertheexperiment.A．notuntilmidnightdidhegoB．untilmidnightthathedidn'tgoC．notuntilmidnightthathewentD．untilmidnightwhenhedidn'tgo7．There'ssomedoubt______he'llkeephispromise.A．whetherB．ifC．thatD．which8．The______parentswereall______forthechildren'ssafety.A．concerned；concernedB．concerned；concerningC．concerning；concerningD．concerning；concerned9．Thestudentsages______15to18.A．rangeB．rangedC．rangefromD．rangesfrom10．______，we'llgocamping.A．WeatherpermitsB．IfweatherwillpermitC．Weatherpermitting　D．Weatherpermitted11．______，wewouldhavenotfinishedtheworkontime.A．Ifyoudidn'thelpusB．WithoutyourhelpC．WithoutyouD．Withyourhelp12．—Iwillnotcomeheretomorrow.—______tome，becauseIdon'tcare.A．Itdoesn'tmakeanydifference6,B．ItmakesmuchdifferenceC．Itdoesn'tmakenodifferenceD．Itmakesadifference13．Youcangoout，______youpromisetobebackbefore11o'clock.A．asfarasB．sofarasC．whenD．as/solongas14．—Iapologizefornotbeingabletojoinyoufordinner.—______.We'llgettogetherlater.A．GoaheadB．NottoworryC．That'srightD．Don'tmentionit15．Christmasis______specialholidaywhen______wholefamilyaresupposedtogettogether.A．the；theB．a；aC．the；aD．a；theSuggestedanswers：1～5DDBBB　6～10CAACC　11～15BADBDStep7　Homework1．FinishofftheWorkbookexercises.2．ReviewandsummarizewhatyouhavelearnedinUnit4.Step8　Reflectionafterteaching_________________________________________________________________________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