《英语》（选择性必修·第二册）Unit2LivingwithtechnologyExtendedreadingI.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.1FutureEndlesspossibilitiesT: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:Virtual