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Unit3WhatwereyoudoingwhentheUFOarrived?,UFO,WhatwereyoudoingwhentheUFOarrived?,Unit3Period,UFOUnidentifiedFlyingObject不明飞行物,UFODoyouknowUFO?Haveyouseenit?WhatwereyoudoingwhentheUFOarrived?,1._Iwasinthebathroom.4._Iwasinthekitchen.2._Iwasinmybedroom.5._Iwasinmybarbershop.3._Iwasinfrontofthelibrary.6._Iwasinthebarberschair.,d,b,a,c,e,f,1aATVreporterisasking“WherewereyouwhentheUFOarrived?”Matchthestatementswiththepeopleinthepicture.,1bListentothereportersquestionsandcirclethecorrectresponses.,a.standinginfrontofthelibrary/studyinginthelibraryb.cleaningmyroom/sleepinglatec.makingasmoothie/cookingdinnerd.gettingoutoftheshower/talkingonthephonee.eatinglunch/cuttinghair,1.getout出去；离开getoutof从出来getoutoftheshower洗完澡出来2.talkonthephone通过电话交谈3.cutcut-cut剪；切；割,Pairwork,A:WhatwereyoudoingwhentheUFOarrived?B:Iwaswhenitarrived.,bedroom,sleeping,A:WhatwereyoudoingwhentheUFOarrived?B:Iwaswhenitarrived.,A:WhatwereyoudoingwhentheUFOarrived?B:Iwaswhenitarrived.,cuttinghair,bathroom,cookingdinner,landing,kitchen,duck,inhospital,Iwasskating.,WhatwereyoudoingwhentheUFOarrived?,_ThealienvisitedtheMuseumofFlight._Thealienboughtasouvenir._AUFOlandedonCenterStreet._Thealienwentintoastore._AnaliengotoutoftheUFO.,54132,2aListenandorderthesestatements1-5.,alien,1.Theboywaswalkingdownthestreet_aUFOlanded.2.Thegirlwasshopping_shesawthealiengetout.3._thealienwasbuyingasouvenir,thegirlcalledthepolice.4._thealienwasvisitingthemuseum,theboycalledtheTVstation.,when,when,2bListenagain.Completethefollowingsentenceswith“when”or“while”.,while,while,A:WhatwasthegirldoingwhentheUFOtookoff?B:Whilethegirlwas.C:WhentheUFOtookoffthemanwas.,2cGroupwork,When和while的用法与区别,1)延续性动词和非延续性动词延续性动词指动作可以延续一段时间，而不是瞬间结束。如：work、study、drink、eat等。非延续性动词指动作极为短暂，瞬间结束。如：start、begin、hit、jump、knock等。,2）在本单元中，出现了以when和while引导的时间状语从句。when表示“当的时候”。从句中既可用延续性动词，又可用非延续性动词MarywashavingdinnerwhenIsawher.while表示“在的时候”、“在期间”。while从句中必须是表示动作或状态的延续性TheweatherwasfinewhilewewereinBeijing.Donttalksoloudwhileothersareworking.,Whilepractice!,Fillwith“While”or“When”,1._Maywastalkingonthephone,hersisterwalkedin.2._Ritaboughthernewdog,itwaswearingalittlecoat.3._IsawCarlos,hewaswearingagreenshirt.,When,While,When,4._Iwasdancing,hewassingingloudly.5._LindafinallysawDavy,hewasjumpingwithadog.6.Iwascleaningmyroom_thefirebrokeout.,While,When,when,
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