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1、,What were you doing when the UFO arrived ?,Unit 3,What were you doing when ？ 当的时候，你正在干什么?,当飞碟到达的时候,你正在干什么?,过去进行时,试用过去进行时翻译下列句子： 你正在干什么？ 我正在睡觉。 我正在吃午饭。 我正在剪头发。,What were you doing?,I was sleeping.,I was eating lunch.,I was cutting hair.,那么，当飞碟到达的时候你正在干什么？,噢，我正站在图书馆前面。,in front of 与 其他“在之前” : 当表示在建筑物
2、的前面时，只能用in front of,in front of “在的前面”,1a,1._I was in the bathroom.,2._I was in my bedroom.,3._I was in front of the library.,4._I was in the kitchen.,5._I was in my barber shop.,6._I was in the barbers chair.,d,b,a,c,e,f,我在浴室(里)。,我在卧室(里) 。,我在图书馆前面(里) 。,我在厨房(里) 。,我在理发店(里) 。,我（坐）在理发椅上 。,What was she/
3、he doing?,她/他正在干什么？,也许她/他正在,Maybe she/he was .,1b,Listen and circle the correct responses.,standing in front of the library / studying in the library,b. cleaning my room /sleeping late,c. making a smoothie /cooking dinner,d. getting out of the shower / talking on the phone,e. eating lunch / cutting
4、hair,sleep late 睡到很晚，睡懒觉,cook dinner 做饭,get out 出去；离开 get out of 从出来 get out of the shower 洗完澡(出来),on the phone = on the telephone talk on the phone 通过电话交谈,What was he doing when the UFO arrived?,He was sleeping late when it arrived.,What was she doing when the UFO arrived?,(b),She was standing in f
5、ront of the library.,(a),What was he doing when the UFO arrived?,He was cutting hair.,(e),航空博物馆,land on 在着陆,5,4,3,2,2b. The boy was walking down the street _ a UFO landed. The girl was shopping _ she saw the alien get out. _ the alien was buying a souvenir, the girl called the police. _ the alien wa
6、s visiting the museum, the boy called the TV station.,when,when,While,While,walk down the street 沿着街道走(下去),1. when可指时间点，又可指时间段，从句中可用延续性动词，也可用非延续性动词。 2. while总是指一个时间段，从句中必须用延续性动词，谓语一般用进行时。 3.统一时态：主句过去式， 从句也是过去式。,when 与 while 引导的从句,选择一般过去时和过去现在时的快捷方法: 留意句中的时间状语,常与一般过去时的时间状语有: just now “刚才”, ago “之前”, yesterday “昨天”, last “上一次”, 表示过去的时间状语从句,常与过去进行时的时间状语有: at that moment “在那时”, (at) this time + 过去的时间 “在的这个时间” , at+钟点+过去的时间 “在的点钟”，,
