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1、 Review Present Perfect Tense 结构：have/has+过去分词 用法： 1.表示过去发生的或已完成的动作对现在造成的影响或结 果。特点是既涉及过去，又联系现在.动作是过去发生的， 结果是现在存在的。 She has seen the film. He has cleaned the blackboard. The blackboard is clean now. Eddie has eaten Toms food. She knows the film. Tom has nothing to eat now. I have got a new pen. I hav
2、e a new pen.2.某个动作从过去已经开始,一直持续到现在,还有可能持续到 将来.动作的持续性要通过一段时间来表示.一段时间的表达方法有两种:for: +一段时间 for a year for two weeks for three yearsSince 过去的某一时刻, since nine since last week一般过去时态的时间状语从句since you came since you got home.注意:for 和since 所引导的时间状语都表示一段时间.He has been away since last week.He has been away for on
3、e week.对划线部分提问都用 How longhave/has gone to have/has gone to have/has been in have/has been in have/has been to have/has been to 1.A: Wheres Jim, Li Lei?B: He _his school library. 2.The Greens _China for three years.We _the Great Wall twice. Its very beautiful.have/has gone to have/has gone to 到过某地到过某
4、地have/has been in have/has been in 一直呆在某地一直呆在某地have/has been tohave/has been to去了某地去了某地has gone to have been inhave been toB A ABBstay APast Perfect Tense概念：过去完成时表示在过去某一时间或动作之前已经发生或 完成了的动作，即“过去的过去（ past-in-the-past ）”。构成方式:肯定回答: Yes, 主语+ had. 否定回答: No, 主语+ hadnt.一般疑问句:had+ 主语+ 过去分词肯定句: had+动词的过去分词 否
5、定句: had not+ 过去分词构成：助动词had + 动词的过去分词用法 ：1. 过去完成时动词表示过去某一时间或某 一动作之前完成的动作或状态。强调过去 某一动作发生在另一动作之前时。1.他说他以前见过你。 He said that he _ (see) you before.had seen2.我到达电影院之前电影早已经开始了. The film had begun before we got to the cinema.2. 过去完成时词可以表示过去某一时 刻之前发生的动作或呈现的状态，这 一动作一直持续 或将继续下去。By six oclock they _ (work)for e
6、ight hours. When I came to GZ , he _(be) there for a long time.用法：1. 到了六点钟为止，他们已经工作了八小时了。2. 我到广州时，他在那里很长时间了。had workedhad been3.到上个月中旬我们在北京住了有五年时间了 。By the middle of last month we _(live) in Beijing for five years.had lived过去完成时表示过去某一时间以前开始一直延续到那个时间并可 能延续下去的动作。常和by或since, for引导的表时间的从句或 短语连用,但必须要与一个表
7、示过去时的动作相对照.1. 他来我们学校之前已经在那所学校工作了三年.2. 当Millie到达电影院的时候, 电影已经开始了半个小时了.3. 自从他离开南京我们就一直没有见过面. He had worked in that school for three years before he came to our school.The film had already been on for half an hour when Millie got to the cinema.We hadnt seen each other since he left Nanjing.3. 过去完成时和 alr
8、eady, just, ever, yet 等连用表示过去的过去 。用法 ：例如：1. 他告诉我说他们队已经赢了。 He told me that his team _ already _ (win).had won2. 她说她仍没去过长城。She said that she _(not go to) the Great Wall yet.hadnt been to用法 ：过去完成时与when, before, as soon as, till/ until 等引导时间状语的从句连用 ，强调动作发生的时间前后。例如：1. 她到家之前她的孩子已经睡着了。 When she got home he
9、r children _(sleep).had slept2. 在他们到达之前电影已经开始了。 Before they arrived here the film _ already _ (start).had startedLast night, as soon as I _ (finish) my work I went to sleep.3. 我完成作业了就去睡觉了。 had finishedMore practiceWhen I arrived there, they_(leave) already.The film_(start),when we got to the cinema.
10、I _(read) the book before I started school.They thought that they_(try) their best.The poor girl never saw her grandpa because he _ (pass away) before she was born.I _ (not realize) she wasnt Chinese until she spoke.had left had startedhad read had triedhad passed away hadnt realized 1Whats the diff
11、erence?现在完成时表示的动作发生在过去，但侧重对现在产生的结果或造成 的影响，与现在有关，其结构为“助动词 have (has) + 过去分词”； 过去完成时则是一个相对的时态，它所表示的动作不仅发生在过去，更 强调“过去的过去”，只有和过去某时或某动作相比较时，才用到它。 试比较： 到目前为止我已经学会了3000个单词.I had learned 3000 English words till then. 到那时我已经学会了3000个英语单词.I have learned 3000 English words so far. 试作比较：昨天我见到王先生了自从他离开北京我们就一直未曾见
12、过面。 I saw Mr. Wang yesterday. We had not seen each other since he left Beijing.自从他离开北京我们就一直未曾见过面。 We have not seen each other since he left Beijing. 试比较： 1. 我在这工作已经五年了。 2. 到2005年8月，我在这工作已经五年了。2Whats the difference?时间状语不同过去完成时在时间上强调“过去的过去”，而一般过去时 只强调过去某一特定的时间They had arrived at the station by ten yes
13、terday. (说明不到10点就在车站了）They arrived at the station at ten yesterday. (说明10点到车站的）选择填空 ( )1.- “Did you see Tom at the party?” -“No, Mary told me that he _ by the time I got there.”A. left B. was leaving C. had left D. has left ( )2. He said that he _ his lunch yet.A. hadnt had B. hasnt had C. wouldnt h
14、ave D. was having ( )3. By the end of last year we _ each other for ten years.A. have known B. knew C. were knowing D. had known ( )4. I saw Li Lei yesterday. We hadnt seen each other _ I left Beijing.A. after B. before C. since D. until cA D c( )5. I learned_ the city for a long time. A. she has been in B. she has gone to C. she had been in D. she had gone to ( )6. He said that he _ a cold for three days. A. has B. had caught C. had had D. has got ( )7. I saw Kate with a new radio in her hand yesterday, but she told me she _the radio for ten days. A. has bought B. had bought C. has had D.
