超好的unit过去完成时讲解学习教案

1、会计学1超好的超好的unit过去过去(guq)完成时讲解完成时讲解第一页，共25页。“I finished the homework.”“I went out playing with my friends” After I finished the homework, I went out playing with my friends.” Before I went out playing with my friends, I finished the homework.这个这个(zh ge)句子是正确的，但有没有一种更好的方句子是正确的，但有没有一种更好的方式来连接这两个句子，能让我们更

2、清楚明了地表达出式来连接这两个句子，能让我们更清楚明了地表达出发生在过去时间的先后顺序呢？这时候我们今天的主发生在过去时间的先后顺序呢？这时候我们今天的主角过去完成时，角过去完成时，had done就要闪亮登场了。就要闪亮登场了。“After I had finished the homework, I went out playing with my friends.” 第1页/共25页第二页，共25页。我们先看它的形式：had +过去分词，它表示的意义用五个字就可以概括 。那到底什么叫做“过去的过去”，“我写完了作业以后出去和朋友玩儿”， “写完作业”和“出去玩”这两个动作(dngzu)都

3、看作是在过去发生的，但要注意“写完作业”发生在前，“出去玩”发生在后，所以比较这两个同为过去的动作(dngzu)，写完作业就是“过去的过去”，所以我们要用过去完成时，而“出去玩”用过去时。After I finished the homework, I went out playing with my friends.” “After I had finished the homework, I went out playing with my friends.” 找不同(b tn)“过去(guq)的过去(guq)”第2页/共25页第三页，共25页。所以我们说使用过去完成时有两个大前提1两个动

4、作均发生(fshng)在过去2先发生(fshng)的动作（过去的过去）用过去完成时。两个条件缺一不可。第3页/共25页第四页，共25页。用数轴(shzhu)图表示第4页/共25页第五页，共25页。解题技巧五字 一找一排序(pi x)第5页/共25页第六页，共25页。第6页/共25页第七页，共25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25页第八页，共25页。Speaking-freely :By the time or

5、 WhenLiu Mei wake up the concert be over By the time Liu Mei woke up, the concert had been over. 第8页/共25页第九页，共25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25页第十页，共25页。2006 2016 learn 4000 English words By the end ofBy the end o

6、f 2006, I had learned 4000 new words.第10页/共25页第十一页，共25页。一、表现形式一、表现形式1. 基本形式：基本形式：had + 过去分词。过去分词。2. 否定形式：否定形式：had + not + 过去分词过去分词(had not照样照样(zho yng)可缩写可缩写hadnt)。3.一般疑问形式：一般疑问形式：had提到句首，回答用提到句首，回答用Yes, 主语主语 + had. / No, 主语主语 + hadnt. 例如：例如：Had he told you to go there earlier yesterday?他他昨天告诉过你早点儿到

7、那儿吗？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。是的，他告诉了。/不，不，他没有。他没有。4. 被动语态形式被动语态形式(xngsh)：had + been + 过去分词。过去分词。如：如：When I got there, the windows had been broken. 第11页/共25页第十二页，共25页。二二. 用法用法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之前已经结束(jish)或完成或完成. 它表示的动作发生的时间是它表示的动作发生的时间是

8、“过去的过去过去的过去”.I had written the article when they came.2. 表示一个动作或状态在过去的某一时间之前已经开始表示一个动作或状态在过去的某一时间之前已经开始, 一直延续到这一过去时间一直延续到这一过去时间.They had worked for 12 hours by 6 oclock this morning.第12页/共25页第十三页，共25页。3.明显标志:用介词(jic)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.与过去完成时连用的时间状语有alr

9、eady, yet, still, never等.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 up , my brother had left home.They had already left before I returned.第13页/共25页第十四页，共25页。常用常用(chn yn)动词的过去式和过去分词动词的过去式和过去分词play played playedwork work

10、ed workedleave left leftsay said saidgo went gonebe was/were beentake took takenget got gottenstart started started第14页/共25页第十五页，共25页。第15页/共25页第十六页，共25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.

11、3. When we _(arrive) at the station, When we _(arrive) at the station, they _(wait) for more than twenty they _(wait) for more than 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

12、, because he 4. One of the men didnt move, because he _ (break) his legs._ (break) his legs. had broken第16页/共25页第十七页，共25页。9.I _ the problem when class was over. (not understand) had writtenhad writtenhad methad methad workedhad worked had gonehad gonehadnt understoodhadnt understood第17页/共25页第十八页，共25

13、页。 had gottenBy the 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.第18页/共25页第十九页，共25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

14、 went home an hour ago. b. By the time 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 hadalready gone home.第19页/共25页第二十页，共25页。1. Kates never seen Chinese films，_ ?A. hasnt she B. has she C. isnt she D. is she2

15、.-Ann has gone to Shanghai. -So _her parents. A. has B. had C. did D. have3. -Mum, may I go out and play basketball? -_you_ your homework yet? A. Do; finish B. Are; finishing C. Did; finish D. Have; finished第20页/共25页第二十一页，共25页。4.His brother has been to Stone Fores twice_he came to Yunnan. A.after B.

16、 before C. since D. for5. Tom_the CD player for two weeks.A. has lent B. has borrowed C. has bought D. has had6. I_a letter from him since he left. A. didnt receive B. havent got C. didnt have D. havent heard第21页/共25页第二十二页，共25页。7. -Have you ever_Lintong to see the Terra Cotta Warriors?-Yes, I have.

17、A.went to B. gone to C. been in D. been to8. My parents _ Shangdong for ten years. A.have been in B. have been to C. have gone to D. have been9. I wont go to the concert because I _my ticket. A. lost B. dont lose C. have lost D. is coming第22页/共25页第二十三页，共25页。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