过去完成时讲解ppt

1、过去完成时,By the time I got outside, the bus had already left.,the policeman get to the shop,Tom run away,By the time the policeman got to the shop, Tom had run away.,Speaking-freely : By the time or When,Liu Mei wake up,the concert be over,By the time Liu Mei woke up, the concert had been over.,his gra

2、ndma come from America,Li Ming grow up,By the time his grandma came from America, Li Ming had grown up.,2006 2011,learn 4000 English words,By the end of,By the end of 2006, I had learned 4000 new words.,The Past Perfect Tense过去完成时,过去完成时的构成 助动词 had (用于各种人称和数) + 过去分词,When I got to school, the bell had

3、 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.,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 learnt 20 English songs by the end of last month.,The plane had taken off when I reached the airport. By the time I got

4、up , my brother had left home.,常用动词的过去式和过去分词,play played played work worked worked leave left left say said said go went gone be was/were been take took taken get got gotten,start started started,break broke broken speak spoke spoken drive drove driven see saw seen eat ate eaten give gave given know

5、 knew known grow grew grown,1. We _(learn) two thousands words by the time I went to Middle School.,Can you do it?,3. When we _(arrive) at the station, they _(wait) for more than twenty minutes.,had learned,arrived,had waited,2. I _ (know) him when I was a student.,had known,4. One of the men didnt

6、move, because he _ (break) his legs.,had broken,5.By yesterday evening 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 written,ha

7、d met,had worked,had gone,hadnt understood,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 gotten,By the

8、 time I ran outside to the bus stop, the bus had already gone.,When I got home,I realized that I had left my homework at school.,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 ti

9、me I got to the cinema, the film had already started.,By the time I woke up, my clock had stopped for two hours.,When I got to the party, Jim had already gone home.,一、表现形式 1. 基本形式：had + 过去分词。 2. 否定形式：had + not + 过去分词(had not照样可缩写hadnt)。 3.一般疑问形式：had提到句首，回答用Yes, 主语 + had. / No, 主语 + hadnt. 例如： Had he

10、 told you to go there earlier yesterday?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。,4. 被动语态形式：had + been + 过去分词。 如： When I got there, the windows had been broken.,二. 用法 1.过去完成时表示一个动作或状态在过去某一时间或动作之前已经结束或完成. 它表示的动作发生的时间是“过去的过去”. I had written the article when they came. 2. 表示一个动作或状态在过

11、去的某一时间之前已经开始, 一直延续到这一过去时间. They had worked for 12 hours by 6 oclock this morning.,明显标志: 1.句中有by引导的过去时间状语: By the time we got there, all the other guests had arrived. 2.与过去完成时连用的时间状语有already, yet, still, never等. They had already left before I returned.,1. Kates never seen Chinese films，_ ? A. hasnt s

12、he B. has she C. isnt she D. is she 2.-Ann has gone to Shanghai. -So _her parents. A. has B. had C. did D. have 3. -Mum, may I go out and play basketball? -_you_ your homework yet? A. Do; finish B. Are; finishing C. Did; finish D. Have; finished,4.His brother has been to Stone Fores twice_he came to

13、 Yunnan. after B. before C. since D. for 5. Tom_the CD player for two weeks. A. has lent B. has borrowed C. has bought D. has had 6. I_a letter from him since he left. A. didnt receive B. havent got C. didnt have D. havent heard,7. -Have you ever_Lintong to see the Terra Cotta Warriors? -Yes, I have

14、. went to B. gone to C. been in D. been to 8. My parents _ Shangdong for ten years. have been in B. have been to C. have gone to D. have been 9. I wont go to the concert because I _my ticket. A. lost B. dont lose C. have lost D. is coming,1.When I_( get) there, the Smiths already_(have) their dinner. 2.By the end of last year they _(produce) more than 500,000 tractors. 3.Tom_(read) at least 20 novels in the past year. 4.He_(work) on a farm for 3year