英语:过去完成时态课件-2.ppt
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- 英语 过去 完成 时态 课件 _2
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1、Revision:一般过去式的用法1)一般过去时表示过去某个时间发生的动作或)一般过去时表示过去某个时间发生的动作或状态,常和表示过去的时间连用,状态,常和表示过去的时间连用,yesterday,last night,in 1990,two days ago,just now,at that time等。等。2)也表示过去经常或反复发生的动作,常和)也表示过去经常或反复发生的动作,常和often,always等表示频度的时间状语连用。等表示频度的时间状语连用。构成构成:主语:主语+谓语(动词的一般过去式)谓语(动词的一般过去式)+其其他他1()1 your father at work the
2、 dayyesterday(前天)A Was;before B Is;before C Was;after D Is;after 2()2 The twinsin Dalian last year Theyhere now A are;were B were;are C was;are D were;was3 过去完成时态过去完成时态Past perfect TensePast perfect Tense4教学重、难点:教学重、难点:1.1.过去完成时的的巩固及运用。过去完成时的的巩固及运用。2.2.过去分词的构成。过去分词的构成。3.3.与现在完成时的区别与现在完成时的区别5过去完成时可以表
3、示过去完成时可以表示过去某一时刻过去某一时刻 或或某一动作之前完成的动作某一动作之前完成的动作或或呈现呈现 的状态的状态。也就是说发生在。也就是说发生在“过去的过去的 过去过去”。定义:构成构成:had过去分词过去分词6 6:00 7:00 6:00 7:00 现在现在 By the time I got up,my sister had already washed all the clothes.71.我到家时她已经睡了。我到家时她已经睡了。By the time I got home,she had already gone to bed.2.到昨天晚上时消息已传遍全球。到昨天晚上时消息
4、已传遍全球。By yesterday evening the news had spread through the world.83.他走以后我找到了那封信。他走以后我找到了那封信。I found the letter after he had gone away.We reached the cinema late.The film had already been on for ten minutes.4.我们到电影院晚了我们到电影院晚了,电影已经开始十分电影已经开始十分钟了。钟了。9过去分词的构成:过去分词的构成:1.规则动词的变化规则动词的变化(regular verbs):a)一般
5、情况下在动词后面加一般情况下在动词后面加 ed work-worked play-playedb)以以 e 结尾的动词直接加结尾的动词直接加 d use-used refuse-refusedc)以辅音字母加以辅音字母加 y 结尾的动词,把结尾的动词,把 y 改改 i 再加再加 edstudy-studiedcarry-carriedd)以重读闭音节结尾的,前面有单个元音字以重读闭音节结尾的,前面有单个元音字母时,双写辅音字母,再加母时,双写辅音字母,再加 edstop-stoppeddrop-dropped过去完成时的构成过去完成时的构成:由助动词:由助动词had+动词的过去分词(动词的过去
6、分词(V.pp)admit-admittedbeg-beggeddrop;prefer;plan;10常用的时间状语等标志词:1、by,before,when,by the time等构成的短语或引导的从句。Eg.1)By the time she came to the bus stop,the bus had already gone.2)We had finished the task before last midnight3)When I arrived at the post office,I found that I had left the letter at home4)Af
7、ter I had finished my homework,I went to bed.113、从过去开始,一直持续到过去的另一时间的动作、状态。常用since,for.Eg.She said that she had learned English for years since he came to our school注意:瞬间动词不能和一段时间状语,及since,for 引导的从句和短语连用。2、由said,told,knew,heard,thought 等引导的宾语从句中。Eg.He told me that he had heard of it.I thought my home
8、work had been fininshed.But I didnt.12 构成构成:had过去分词过去分词否定式:主语+hadnt+p.p.+.疑问式:Had+主语+p.p.+?肯定答语:Yes,主语+had否定答语:No,主语+hadnt肯定式:主语+had+p.p.+.13构成构成:had过去分词过去分词1:I had learnt 5000 English words by the end of last week.2:I hadnt learnt 5000 English words by the end of last week.3:Had you learnt 5000 Eng
9、lish words by the end of last week?4:How many English word had you learnt by the end of last week?141.The thief had run away before the police arrived.2.We had learnt 3 Chapters by the end of yesterday.3.Henry had stayed in bed for a week before he went to school yesterday.The thief hadnt run away b
10、efore the police arrived.Had the thief run away before the police arrived?Who had run away before the police arrived?We hadnt learnt 3 chapters by the end of yesterday.Had you learnt 3 chapters by the end of yesterday?What had you learnt by the end of yesterday?Henry hadnt stayed in bed for a week b
11、efore he Had Henry stayed in bed for a week before he went to school yesterday?How long had Henry stayed in bed before he went to school yesterday?15现在完成时和过去完成时的区别:现在完成时和过去完成时的区别:The differences between Present Perfect tense and Past Perfect tense.(1)She has taught English for 6 years.(2)“Where is S
12、usan”“She has gone to America”.表示过去某时发表示过去某时发生的动作,这动生的动作,这动作可能刚刚停止作可能刚刚停止,也可能还在进行。也可能还在进行。16(1)She said she had taught English for 6 years.(2)By the time I got to London,she had gone to America.表示过去某表示过去某时之前发生时之前发生的动作。的动作。现在完成时现在完成时:主语主语+have/has done过去完成时过去完成时:主语主语+had done17 过去的过去过去的过去 过去过去 现在现在no
13、w past现在完成时现在完成时过去完成时过去完成时timetime18历届高考真题:历届高考真题:1:How long _ you _in the countryside before you came to our school?(2004年湖南对口招生)A:hadtaughtB:havetaughtC:did.teachD:areteaching192:How long _ you _the army before you came to our company?(2006年湖南对口招生)A:did.join B:have.joined C:hadbeen in D:havebeen i
14、n203:The football match on TV _ for half an hour.(2008年湖南对口招生)A:has begun B:has been on C:began D:is begining214:A moment ago,a policeman told me that he _ my stolen motorbike in a village.(2009年湖南对口招生)A:has found B:had found C:was finding D:will find225:When Jack arrived,he learned Mary _ for almos
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