英语：过去完成时态课件.ppt

1、Welcome to our class!Welcome to our class!一般过去时态一般过去时态The simple past tenseThe simple past tenseRevision: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,alwa

2、ys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）+其他其他 ()1 your father at work the dayyesterday A Was;before B Is;before C Was;after D Is;after()2.The twinsin Dalian last year Theyhere now A are;were B were;are C was;are D were;was 过去完成时态过去完成时态The past perfect TenseThe past perfect Ten

3、se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 过去完成时可以表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某一动作之前完成的动作之前完成的动作或或呈现的状态呈现的状态。也就是说发生。也就是说发生在在“过去的过去过去的过去”。定义：定义：构成构成：had过去分词过去分词构成构成：had过去分词过去分词否定式否定式：主语主语+hadnt+p.p.+.一般疑问式一般疑问式：Had+主语主语+p.p.+?肯定答语肯定答语：Yes,主语主语+had否定答语否定答

4、语：No，主语主语+hadnt肯定式肯定式：主语：主语+had+p.p.+.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 English words by the end of last week?4：How many English words had you learnt by the end of last week?6:00

5、 7:00 6:00 7:00 现在现在 By the time I got up,my sister had already washed all the clothes.1.我到家时她已经去睡了。我到家时她已经去睡了。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。到昨天晚上时消息已传遍全球。By yesterday evening the news had spread through the world.过去分词的变化：过去分词的变化：规则动词的变化规则动词的变化(regular verbs)：a)一

6、般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-droppedbeg-beggedprefer;plan;admit-admitted常用的时间状

7、语等标志词：常用的时间状语等标志词：1、by,before,when,by the time等构成的短等构成的短语或引导的从句。语或引导的从句。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 home 4)After I had finished my homework,I w

8、ent to bed.2、由由said,told,knew,heard,thought 等引导的宾等引导的宾语从句中。语从句中。Eg.He told me that he had heard of it.3、从过去开始，从过去开始，一直持续到过去的另一时间一直持续到过去的另一时间的动作、状态。常用的动作、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

9、连用引导的从句和短语连用。过去的过去过去的过去 过去过去 现在现在now past现在完成时现在完成时过去完成时过去完成时timetime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：Present Perfect tense and Past Perfect tense.(1)She has taught English for 6 years.(2)“Where is Susan”“She has gone to America”.强调过去的动强调过去的动作对现在的影作对现在的影响，属于现在响，属于现在的范畴。的范畴。(1)She said she had taught En

10、glish for 6 years.(2)By the time I got to London,she had gone to America.以过去某时间以过去某时间点为基点，强点为基点，强调该基点之前调该基点之前发生的动作或发生的动作或状态。状态。历届中考真题：历届中考真题：1：How long _ you _in the countryside before you came to our school?A:hadtaughtB:havetaughtC:did.teachD:areteaching2：How long _ you _the army before you came to

11、 our company?A:did.join B:have.joined C:hadbeen in D:havebeen in3：The football match on TV _ for half an hour.A:has begun B:has been on C:began D:is begining4:A moment ago,a policeman told me that he _ my stolen motorbike in a village.A:has found B:had found C:was finding D:will find5:When Jack arri

12、ved,he learned Mary _ for almost an hour。A;had gone B:had set off C:had left D:had been away 分析：答案选分析：答案选 D。因为上大学是过去，学。因为上大学是过去，学了五千个英语单词是在上大学之前，即了五千个英语单词是在上大学之前，即“过去的过去过去的过去”，所以用过去完成时。，所以用过去完成时。6:He _more than 5,000 English words when he entered the university at the age of 15.(2005北京卷北京卷)A.has learned B.would have learned C.learned D.had learned分析：答案选分析：答案选 D。根据。根据“我没见到他我没见到他”可知，可知，“在我到达在我到达”前前“父亲已经去伦敦父亲已经去伦敦”了，即父了，即父亲去伦敦发生在亲去伦敦发生在“过去的过去过去的过去”，故用过去完，故用过去完成时。成时。7.Father _for London on business upon my arrival,so I didnt see him.(2005福建卷福建卷)A.has left B.left C.was leaving D.had left祝您成功！