過去完成時公開課課件PPT課件

1、過去完成時可以表示過去某一時刻 或某一動作之前完成的動作或呈現(xiàn) 的狀態(tài)。也就是說發(fā)生在“過去的 過去”。定義：構(gòu)成：had過去分詞第1頁/共16頁常用的時間狀語等標(biāo)志詞：1、by, before, when, by the time等構(gòu)成的短語或引導(dǎo)的從句。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 h

2、ad left the letter at home4) After I had finished my homework, I went to bed.第2頁/共16頁3、 從過去開始， 一直持續(xù)到過去的另一時間的動作、狀態(tài)。常用since，for.Eg. She said that she had learned English for years since he came to our school注意：瞬間動詞不能和一段時間狀語，及since, for 引導(dǎo)的從句和短語連用。2、 由said, told, knew, heard, thought 等引導(dǎo)的賓語從句中。Eg. He t

3、old me that he had heard of it. I thought my homework had been fininshed. But I didnt.第3頁/共16頁 6:00 7:00 6:00 7:00 現(xiàn)在 By the time I got up, my sister had already washed all the clothes.第4頁/共16頁1. .我到家時她已經(jīng)睡了。 By the time I got home, she had already gone to bed.2. .到昨天晚上時消息已傳遍全球。 By yesterday evening

4、the news had spread through the world.第5頁/共16頁3.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.我們到電影院晚了,電影已經(jīng)開始十分鐘了。第6頁/共16頁現(xiàn)在完成時和過去完成時的區(qū)別：The differences between Present Perfect tense and Past Perfect tense.第7頁/共16頁現(xiàn)

5、在完成時: 主語 + have / has done過去完成時: 主語 + had done第8頁/共16頁 過去的過去 過去 現(xiàn)在now past現(xiàn)在完成時過去完成時timetime第9頁/共16頁 分析：答案選 D。因?yàn)樯洗髮W(xué)是過去，學(xué)了五千個英語單詞是在上大學(xué)之前，即“過去的過去”，所以用過去完成時。He _more than 5,000 English words when he entered the university at the age of 15. (2005北北京卷京卷)A.has learned B. would have learned B.C. learned D.

6、 had learned第10頁/共16頁Can you do it?1.By yesterday morning, he _(call) me ten times.2.The patient _(die) when the doctor arrived.3.I saw Lin Feng yesterday. We _(not meet) each other for five years.had calledhad diedhad not met第11頁/共16頁4. I returned the book that I_(borrow).5. He said that he _(know)

7、 her well.6. The match _(be) on for half an hour.7. The match _(be) on for half an hour when I got there.8. They _(do) the work at 11 oclock yesterday morning. had borrowedhad knownhas beenhad beendid第12頁/共16頁9. They _(do) the work by 11 oclock yesterday morning.10. The pop singers _(leave) when I got to the music hall last night. What a pity!11. How clean the room is today! Oh, yes! Who _(clean) it?had donehad leftcleaned第13頁/共16頁12.What were you doing when Jim phoned you? I _(finish) my homework and was starting to take a show