Unit4 Extended reading 公开课教案-翟媛媛

2/2Unit4Extendedreading公开课教案南京市第二十九中学翟媛媛I.LearningobjectivesBytheendofthelesson,studentswillbeableto:1.graspthegeneralinformationofthedialogue;2.deeplyunderstandsometextsofthedialoged;3.learnandusethecorevocabulary;4.analysesomecomplexsentencesII.Keycompetencefocus1.GetSstoreviewsomestrategieslearntinlessons1&2.2.Learnhowtofindthereferences.III.Predictedareaofdifficulty1.Findthereferences.2.Analysethecomplexsentences.IV.TeachingproceduresTgreetstheclass.T:Classbegins,boysandgirls!Goodmorning/afternoon!Step1Reading1.ReadingforthestructureofthetextTRevisethetechniqueslearntinLesson2toconcludeaparagraph.T:Theretwowaystoboilaparagraphdown.Oneis“brief”,usingasfewwordsaspossible;anotheris“descriptive”,offeringimportantinformation.T:Nowtrythe“brief”toconcludethetext.TitleVirtualrealityDefinitionFunctionApplicationBarriersFutureAnswer:TitleVirtualrealityDefinitionRealitythatisnotreal.FunctionSurroundingyouwithvirtualthree-Dimages,soundsandothersensoryinformation.ApplicationEducation;medicine;entertainmentshoppingandtravelling.BarriersTime,costandtechnicallimitations.FutureEndlesspossibilitiesT:Nowturntopage54.Let’scometoAP54andtrythe“descriptive”waytoconcludethetext.ItemsDescriptionWhatisVRVR(virtualreality)means“realitythatisnotreal”.HowitworksApplicationsBarriersFutureAnswers:ItemsDescriptionWhatisVRVR(virtualreality)means“realitythatisnotreal”.HowitworksWearingaVRheadsetequippedwithsensorsandascreen,you’resurroundedbythree-Dimages,soundsandothersensoryinformation,whichcreatesasuper-realisticeffectcalled“presence”.Thoughyouknowthesensoryinformationsurroundingyouisnotreal,partofyourbrainbelievesitis—andactsaccordingly.ApplicationsVRiswidelyusedineducation,medicine,entertainment,shoppingandtravelling.BarriersThebarriersincludetime,costandtechnicalLimitations.FutureThereareendlesspossibilities.2.ReadingforextendedinformationBP54T:WhatotherapplicationsofVRdoyouknowabout?Answer:Virtualrealityinthecourtroom:Lawyersusuallyusephotostotrytoexplainthemechanicsofacrimeoranaccidenttoajury.Itischallengingtoshowthejudgeandjurywhatactuallyhappenedatacrimesceneorattheprecisemomentofimpactduringaseriousaccident.WithVR,lawyersarenowabletotransportthemdirectlyintothesceneofthecrimeoraccident.Virtualrealityinsport:Athletesusethistechnologytofine-tunecertainaspectsoftheirperformanceandVRisalsousedinthedesignofsportingclothesandequipment,suchasrunningshoes.Virtualrealityhasbeenusedtoimprovetheaudience’sexperienceofasportingeventtoo,likewalkingthroughastadium,oreventakingpartinagameoranevent.…【设计意图：本单元一个阅读策略是“理解文章结构”，此步承接第一课，复习这一策略并运用这一策略来理解本文结构。】Step2BuildingCorevocabulary1.practicalDefinitionsa.concernedwithpracticeandactionratherthantheoryb.suitableforthepurposeforwhichitwasmade;usefulVocabularywebpractise→practice→practical→practicallypracticableT:Matchtheunderlinedwordswiththeirrightdefinitions.1)Yourinventionisinteresting,butnotverypractical.2)It'saninterestingideaintheorybuttherearemanypracticaldifficultiesinreality.3)CanyougivesomeexamplesofthepracticalapplicationsVRhas?(Line10P53)Answers:1)b2)a3)b2.engageDefinitionsa.arrangetoemploysb;hiresbb.beginfightingwithc.occupyorattract(sb'sthoughts,time,etc)d.(ofpartsofamachine,etc)lockorfittogethere.(causesbto)takepartinorbeoccupiedinsthf.haveagreedtomarryVocabularywebengage→engaged→engagementbeengagedinT:Matchtheunderlinedwordswiththeirrightdefinitions.1)Thetwocog-wheels(齿轮)engagedandthemachinestarted.2)Nothingengageshisattentionlongerthanreadingnovels.3)Ihavenotimetoengageingossip.4)MarywasengagedtobemarriedtoJoseph,acarpenterwhowastwoyearsolder.5)OurschoolhasengagedaforeignteacherasaspokenEnglishteacher.6)Thetwoarmieswerefiercelyengagedforseveralhours.7)Bydeliveringthecontentinameaningfulway,thisnewapproachtolearningmanagestoengagestudents’interestandenhancelearningefficiency.(Line16-18P53)Answers:1)d2)c3)e4)f5)a6)b7)c3.twinDefinitionsa.n.eitherofapairofchildrenoryounganimalsbornofthesamemotheratthesametimeb.n.eitherofapairofsimilar,usuallymatching,thingsc.adj.usedtodescribetwothingsthathappenatthesametimeandarerelatedtoeachotherd.v.formarelationshipbetweentwoplaces,people,orideasT:Matchtheunderlinedwordswiththeirrightdefinitions.1)OxfordinBritainistwinnedwithBonninGermany.2)Thetwinswereseparatedatbirthandbroughtupinentirelydifferentenvironments.3)Theplatewasoneofapair,butIbrokeitstwin.4)Wouldyouprefertwinbedsoradoublebed?5)WhatifItoldyouthatdoctorscouldcreateavirtual“twin”inordertopractiseadelicatesurgerybeforeattemptingitonthepatient?(Lines25-27P53)Answers:1)d2)a3)c4)b5)b4.cloneDefinitionsa.n.groupofplantsororganismsproducedasexuallyfromoneancestorb.someoneorsomethingthatlooksandbehavesexactlythesameassomeoneorsomethingelsec.v.toproduceananimalorplantasacloneT:Matchtheunderlinedwordswiththeirrightdefinitions.1)Theywerethefirsttocloneasheepfromadultcells.2)Tomwasinsomewaysayoungercloneofhishandsomefather.3)Althoughtwoclonesareidenticalgenetically,theymaydevelopindifferentways.4)Inshopping,youcanlookforwardtobeingabletohaveyourownvirtualrealityclonetryonclothesandtoseeproductswith360°views.(Lines37-39P54)Answers:1)c2)b3)a4)b【设计意图：本单元的阅读另一个重点阅读策略是“根据上下文猜词释义”，此步设计承接第二课，将核心词汇训练与阅读策略有机结合起来。最后一句来自课文。】Step3FindoutreferenceT:Tounderstandtheprecisemeaningofareadingmaterial,wehavetodigoutthereferenceofanounorapronoun.Herearesomesentencesfromthetext.Let’sexplorewhattheunderlinednounsorpronounsreferto.1.Itreallyboilsdowntothreethings——time,cost,andtechnicallimitation.Wewillneedtimetodevelopandfine-tunethehardwareandsoftware.Theinitialcostwilldiscouragemostpeopleinthebeginningbutthatshouldbefixedovertime.(Lines45-46P54)T:Whatdoes“Theinitialcost”referto?Answer:Time,costandtechnicallimitation.T:Whatdoes“that”referto?Answer:theinitialcost.2.Foxexample,5Gtechnology,withitspotentialtoserveupmorestablemobileconnectivityatfasterspeed,willmakeitpossibleforpeopletoenjoyamoreimmersiveVRexperiencewherevertheyare.(Lines54-57P54)T:Whatdothethreeunderlinedpartsreferto?Answers:Theword“its”refersto“(of)5Gtechnology”.Theword“it”isformalobject,referringtotheactualobject“toenjoyamoreimmersiveVRexperience”.Theword“they”refersto“people”.【设计意图：指代关系是阅读难点之一，准确理解名词和代词的指代是顺利理解上下文的前提。本文中多处出现复杂的指代，需要借助文理、语法才能准确理解】Step4AnalysethecomplexsentencesT:There’resomecomplexsentencesinthetext.Togetaccuracyofthemeaning,youhavetoanalysetheircomponents.ThelpsSstofindoutsomecomplexsentencesandasksomeofthemtoanalysetheircomponents.1.WhenyouwearaVRheadsetequippedwithcamerasandsensors,youaresurroundedby3-Dimages,soundsandothersensoryinformation,whichcreatesasuper-realisticeffectcalled“presence”.(Lines5-8P53)Answers1.Themainbodyofthesentenceis“…youaresurrounded…”.Theconjunction“When”guidestimeadverbialclause.Thepart“equippedwithcamerasandsensors”modifies“headset”.Theconjunction“which”guidesattributiveclause,modifyingthemainideaoftheformerpartofthesentence.2.WhatifItoldyouthatdoctorscouldcreateavirtual“twin”inordertopractiseadelicatesurgerybeforeattemptingitonthepatient?(Lines25-27P53)2.Themainbodyofthissentenceisanellipsis.Itsfullsentenceis“WhatwouldyoufeelifItold…”.Thissentenceusesasubjunctivemoodcontrarytothepresentfact.Theconjunction“if”guidesvirtualconditionalsentence,inwhichthesecondarymainbodyis“Itoldyou…”.Theconjunction“that”guideanobjectclause，inwhichthesecondarymainbodyis“doctorscouldcreatea…twin”,withthepart“inordertopractiseadelicatesurgery”asadverbialofpurposeandt