八年级:过去进行时结构和用法演示教学
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初二英语过去进行时人教版(新目标)【本讲教育信息】一. 教学内容:过去进行时二. 教学过程:过去进行时表示过去某一时刻或某一段时间内正在进行或发生的动作。
(一)构成:主语+was/ were+ v.-ing(二)标志词:过去进行时常和下列表示过去某一时刻或某一段时间的时间状语连用:then, at that time, this time yesterday, all night, at 6:00 yesterday, all the morning, from 8:00 to 10:00 yesterday等。
ex: He was running down the street then /at that time.I was cooking this time yesterday.They were working all night /all day.You were reading from 8:00 to 10:00 this morning.(三)句型结构:1. 肯定句:We were having class this time yesterday.2. 否定句:We ______ having class this time yesterday.3. 一般疑问句:——______ you ______ class this time yesterday?——Yes, we ______.No, we ______.4. 特殊疑问句:______ we you ______ this time yesterday?(四)现在进行时,过去进行时,一般过去时的用法区别:1. 现在进行时表示现在或现阶段正在进行或发生的动作。
其构成形式为:主语+am/ is /are +v.-ing(现在分词)I’m reading a book now.What is he doing at the moment?They are listening to music.2. 过去进行时表示过去某一时刻或某一时间段正在进行的动作。
初中英语过去进行时讲解一、结构:was /were + V-ing1、动词现在分词的变化规则2、过去进行时之间的句型转换He was expecting you yesterday.(肯定句)He wasn’t expecting you yesterday.(否定句)Was he expecting you yesterday?(一般疑问句) Yes,he was.No,he wasn’t.-What was he doing yesterday?(特殊疑问句)-He was expecting you yesterday.二、用法:表示过去某时正在进行的动作(不强调是否完成),常与表示时间的状语this morning, the whole morning, all day yesterday, from nine to ten last evening, when, while等连用。
1.表示过去某一时间内(正在)进行的动作;如:I was doing my homework at 9 p.m. last Sunday.2.表示一动作正在进行时,另一动作同时正在进行.(1)用while连接(while只接doing),主从句子动作一致,无先后顺序。
例:My mother was cooking while I was doing my homework.(2)对when连接的主从句,动作先发生的使用过去进行时,动作后发生的使用一般过去时;例:I was doing my homework when my mother came in.When he was watching TV the door bell rang.3.重复的动作When he worked here, John was always making mistakes.4.表示过去将要发生的动作She told us Mr.Lee was arriving here.5.用于故事,以提供其时间背景6.用过去进行时表示现在,主要是为了使语气委婉、客气。
过去进行时的用法
一.过去进行时表示在过去某一时刻或某一段时间内进行或发生的动作。
其形式为was /were + V-ing。
常与表示过去的时间状语连用,如:last night, last Saturday等;或者与when, while, as引导的过去时间状语连用。
例如:We were watching TV from seven to nine last night. 昨天晚上七点到九点的时候我们在看电视。
二、过去进行时可以表示在过去某个时间点发生的事情。
时间点可以用介词短语、副词或从句来表示。
如:What was she doing at nine o‘clock yesterday? 昨天晚上九点她在做什么?
三.过去进行时的结构:
1.过去进行时由“主语+was/were + 动词ing”构成
EX:We were having supper when the phone rang. 我们正在吃晚饭时电话响了。
2.过去进行时的否定式由“主语+was/were not +现在分词”构成
EX:This time yesterday Jack was not watching TV. He was repairing his bike. 昨天这个时候,杰克不是在看电视,而是在修理自行车。
3. 过去进行时的疑问式由“was/were +主语+ 现在分词”组成
EX:Were you playing basketball at four yesterday afternoon? 昨天下
午四点你们在打篮球吗?
练习题:
过去进行时选择填空:
( )1. What _____ your grandfather _____ this time yesterday ?
A. is ... doing
B. was ... doing
C. did .. do
D. had ... Done
( )2. ____ you ______ a meeting at four yesterday afternoon ?
A. Were ... having
B. Was ... having
C. Did ... have
D. Do ... have
( )3. His family _____ TV from ten to twelve last night .
A. watched
B. were watching
C. had watched
D. was watching
( )4. Li Lei ______ a letter to his friend last night .
A. was writing
B. was written
C. will write
D. Writes
( )5. You must tell us what you _______ at ten yesterday evening .
A. did
B. was doing
C. were done
D. were doing。