八上U3 What were you doing, when ...知识点分析和总结.docx

一、过去进行时 八上 U3 知识点  三、正确运用及区分下列词汇 1、follow 的用法： 表示：过去进行时表示过去某一时刻正在进行的动作，还可表示过去某阶段正进行的动作。 构成：主语 + was/were + doing 例如： I was watching TV at 8:00 yesterday morning. 昨天早上 8 点我正在看电视。 They were having class at this time yesterday. 昨天这个时候他们正在上课。 Tom was cutting hair from 7:00 to 8:00 yesterday. 昨天 7 点到 8 点 Tom 正在理发练习： 昨天晚上 9 点我正在图书馆学习。 上一周的这个时候我正在做饭。 It was raining at 7 o’clock last night.(改为否定句) The boy was playing the piano when I came in.(改为一般疑问句) Lily were reading books from 9 to 11 yesterday.(划线提问) Mr.Green (fly) a kite with his son at this time yesterday. 7.What you (do) at ten o’clock yesterday morning? 二、when 与 while 的区别 两者都有“当??的时候”。when 既可指时间点有可指 时间段，while 只指时间段。When 引导的动词既可以是延续性的也可以是非延续性的， 所以所引导的时间状语从句， 主句用过去进行时，从句用一般过去式。如： I was walking down the street (主句)when a UFO landed(从句) 当 UFO 降落的时候我正在沿着大街散步。 While 从句中的动词必须是延续性的，因此从句必须用过去进行时，主句可以是过去式也可以是过去进行时。如： While she was studying(从句), the phone rang(主句). 当她正在学习的时候，电话铃响了。练习： 用 when 或者 while 填空。 Tom was eating supper, it begin to rain. Don’t use your phone you are driving a car. What were you doing Miss Wang come in? We were watching TV the electricity was off. Peter was sleeping , a thief came into his room. It snowed we arrived in Tokyo. She left her hometown she was five. 用动词的适当形式填空。 I (write) a letter to my friend last night. I (write) a letter to my friend at this time last night. He (not do) his homework yesterday evening. He (not do) his homework at 9 yesterday evening. We (play) the cards when someone knocked the door. When I (come)in, he (lie) in the bed. What you (do) between 8 and 10 yesterday morning? My brother (join) the army when he was nineteen years old. I (make) a phone at that time. He ( talk) with others when the teacher came in . While my mother (cook), I (wash) my clothes. The Songs (fish) when I (see) them yesterday. follow 的形容词为following,意为“下列的”；常用于 follow sb. to do sth.“跟随某人去干某事”。 典例：(1) What are you going to do in the (follow) week? (2) We followed Uncle Wang (visit) his company