过去完成时讲解ppt01507PPT课件

1、The Past Perfect Tense过去完成时1.过去完成时的构成过去完成时的构成助动词助动词 had (用于各种人称和数用于各种人称和数) + 过去分词过去分词When I got to school, the bell had rung.2. 过去完成时的用法:主要是表示在过去某个时间,或是动作之前已经发生或完成的动作.也就是过去的过去.第1页/共16页The Past Perfect Tense过去完成时3. 常用的几种方式:用介词by, before 等构成的时间短语.用连词when, before, after或者短语by the time引导的时间状语从句.We had l

2、earnt 20 English songs by the end of last month.The plane had taken off when I reached the airport.By the time I got up , my brother had left home.第2页/共16页1. 否定形式：had + not + 过去分词(had not照样可缩写hadnt)。2.一般疑问形式：had提到句首，回答用Yes, 主语 + had. / No, 主语 + hadnt. 例如：Had he told you to go there earlier yesterday

3、?他昨天告诉过你早点儿到那儿吗？Yes, he had. / No, he hadnt. 是的，他告诉了。/不，他没有。3. 被动语态形式：had + been + 过去分词。如：When I got there, the windows had been broken. 第3页/共16页常用动词的过去式和过去分词play played playedwork worked workedleave left leftsay said saidgo went gonebe was/were beentake took takenget got gottenstart started started

4、第4页/共16页 break broke broken speak spoke spoken drive drove driven see saw seen eat ate eaten give gave given know knew known grow grew grown第5页/共16页第6页/共16页the policeman get to the shopTom run away By the time the policeman got to the shop, Tom had run away.第7页/共16页Speaking-freely :By the time or Wh

5、enLiu Mei wake up the concert be over By the time Liu Mei woke up, the concert had been over. 第8页/共16页his grandma come from AmericaLi Ming grow up By the time his grandma came from America, Li Ming had grown up.第9页/共16页2006 2011 learn 4000 English words By the end ofBy the end of 2006, I had learned

6、 4000 new words.第10页/共16页1. We _(learn) two thousands 1. We _(learn) two thousands words by the time I went to Middle School. words by the time I went to Middle School. 3. 3. When we _(arrive) at the station, When we _(arrive) at the station, they _(wait) for more than twenty they _(wait) for more t

7、han twenty minutes.minutes. had learnedarrivedhad waited2. I _ (know)2. I _ (know) him when I was a him when I was a student. student. had known4. One of the men didnt move, because he 4. One of the men didnt move, because he _ (break) his legs._ (break) his legs. had broken第11页/共16页5.By yesterday e

8、vening he _ that important letter.(write)6.I thought I _ the man before.(meet)7.By six oclock they _ for ten hours.(work)8.I went to Nicks house,but he _ out.(go)9.I _ the problem when class was over. (not understand) had writtenhad writtenhad methad methad workedhad worked had gonehad gonehadnt und

9、erstoodhadnt understood第12页/共16页口语练习1.a.I got up. My brother was in the shower already. b.By the time I got up,my brother _ in the shower already.2.a.I ran outside to the bus stop. The bus was gone. b.3.a.I got home. I realized that my homework was still at school. b. had gottenBy the time I ran out

10、side to the bus stop, the bus had already gone.When I got home,I realized that I had left my homework at school.第13页/共16页4.a.I woke up. My clock stopped two hours ago. b. 5.a.I got to the cinema at 8. The film started at 7:30. b. 6.a.I got to the party.Jim went home an hour ago. b. By the time I got to the cinema, the film had already s