过去完成时1.概念：过去发生或已经完成的动作对现在造成的影响或结果，或从过去已经开始，持续到现在的动作或状态。
2.时间状语：recently, lately, since…for…,in the past few years, etc.3.基本结构：have/has + done4.否定形式：have/has + not +done.5.一般疑问句：have或has提前概念：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 ）"。
----|-------------------------- |-------------------------------|---------------------------->那时以前那时现在构成：过去完成时由"助动词had + 过去分词"构成，其中had 通用于各种人称。
They had already had breakfast before they arrived at the hotel.She had finished writing the composition by 10 ：00 this morning.二、过去完成时的判断依据1. 由时间状语来判定一般说来，各种时态都有特定的时间状语。
与过去完成时连用的时间状语有：（1 ）by + 过去的时间点。
如：I had finished reading the novel by nine o'clock last night.（2 ）by the end of + 过去的时间点。
如：We had learned over two thousand English words by the end of last term.（3 ）before + 过去的时间点。
如：They had planted six hundred trees before last Wednesday.2. 由"过去的过去"来判定。
过去完成时表示"过去的过去"，是指过去某一动作之前已经发生或完成的动作，即动作有先后关系，动作在前的用过去完成时，在后的用一般过去时。
这种用法常出现在：（1 ）宾语从句中当宾语从句的主句为一般过去时，且从句的动作先于主句的动作时，从句要用过去完成时。
在told, said, knew, heard, thought等动词后的宾语从句。
如：She said that she had seen the film before.（2 ）状语从句中在时间、条件、原因、方式等状语从句中，主、从句的动作发生有先后关系，动作在前的，要用过去完成时，动作在后的要用一般过去时。
如：When I got to the station, the train had already left.After he had finished his homework, he went to bed.注意：before, after 引导的时间状语从句中，由于before 和after 本身已表达了动作的先后关系，若主、从句表示的动作紧密相连，则主、从句都用一般过去时。
如：Where did you study before you came here?After he closed the door, he left the classroom.（3 ）表示意向的动词，如hope, wish, expect, think, intend, mean, suppose等，用过去完成时表示"原本…，未能…"We had hoped that you would come, but you didn't.3. 根据上、下文来判定。
I met Wang Tao in the street yesterday. We hadn't seen each other since he went to Beijing.三、过去完成时的主要用法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完成或结束，即发生在"过去的过去"。
如：When I woke up, it had stopped raining.我醒来时，雨已经停了。
（主句的动作发生在"过去的过去"）2. 过去完成时是一个相对的时态，表示的是"过去的过去"，只有和过去某一时间或某一动作相比较时才使用它。
如：He told me that he had written a new book. (had written 发生在told 之前)3. 过去完成时需要与一个表示过去的时间状语连用，它不能离开过去时间而独立存在。
此时多与already ，yet ，still ，just ，before ，never 等时间副词及by ，before ，until 等引导的短语或从句连用。
如：Before she came to China, Grace had taught English in a middle school for about five years.Peter had collected more than 300 Chinese stamps by the time he was ten.4. 过去完成时表示某一动作或状态在过去某时之前已经开始，一直延续到这一过去时间，而且动作尚未结束，仍然有继续下去的可能。
如：By the end of last year, he had worked in the factory for twenty years. （had worked 已有了20 年，还有继续进行下去的可能）四、过去完成时与现在完成时的区别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：I have learned 1000 English words so far.到目前为止我已经学会了1000 个英语单词。
I had learned 1000 English words till then.到那时为止我已经学会了1000 个英语单词。
- I'm sorry to keep you waiting. 对不起，让你久等了。
- Oh, not at all. I have been here only a few minutes.没什么，我只等了几分钟。
（"等"的动作从过去某一时间点持续到现在）- John returned home yesterday. 约翰昨天回到家的。
- Where had he been?他去哪儿了？（答语中使用过去完成时是指约翰在returned home 之前去了哪些地方，即"过去的过去"）五、过去完成时与一般过去时的区别虽然这两种时态都表示过去发生的动作或存在的状态，但在使用时应注意以下几点：1. 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。
试比较：They had arrived at the station by ten yesterday.They arrived at the station at ten yesterday.2. 在没有明确的过去时间状语作标志时，谓语动词动作发生的时间先后须依据上下文来判断：先发生的用过去完成时，后发生的则用一般过去时。
如：She was very happy. Her whole family were pleased with her, too. She had just won thefirst in the composition competition.3. 当两个或两个以上接连发生的动作用and 或but 连接时，按时间顺序，只需用一般过去时来代替过去完成时；另外，在before ，after ，as soon as 引导的从句中，由于这些连词本身已经表示出时间的先后，因此也可以用过去时来代替过去完成时。
如：He entered the room, turned on the light and read an evening paperI (had) called her before I left the office.过去完成时可表示过去未曾实现的想法和打算，通常连用的动词是want, think, hope, plan, mean, expect, intend, suppose 等：I had meant to come, but something happened. 我本想来，但有事就没有来。
I had intended to speak, but time did not permit. 我本想发言，但时间不允许。
We had hoped that you would come to see us, but you didn’t. 我们本想你来看我们的，但你没有来。
过去完成时练习题1. 单项选择1．He asked me _____ during the summer holidays.A. where I had beenB. where I had goneC. where had I beenD. where had I gone2. What ____ Jane ____ by the time he was sever?A. did, doB. has, done C did, did. D. had, done3. I ______ 900 English words by the time I was ten。
A. learnedB. was learningC. had learnedD. learnt4. She ______lived here for ______ years.A. had, a fewB. has, severalC. had, a lot ofD. has, a great deal of5. By the time my parents reached home yesterday, I _____ the dinner already.A had cooked B. cooked C. have cooked D. was cooked6. She said she __________ the principle alreadyA .has seen B. saw C. will see D. had seen7. She said her family _______ themselves ______ the army during the war.A. has hidden, fromB. had hidden, fromC. has hidden, withD. had hidden, with8. By the time he was ten years old, he _________.A. has completed universityB. has completed the universityB. had completed an university D. had completed university9. She had written a number of books ______ the end of last year.A. forB. inC. byD. at10. He _____ to play ____ before he was 11 years old.A had learned, piano B. had learned, the pianoC. has learned, the pianoD. learns ,piano.11. What _______ Annie ____ by the time he was ten?A. did, doB. did, didC. has, doneD. had done12 .He ___ in the factory for three years before he joined the Army.A. has workedB. worksC. had workedD. will work13. By the end of last week, they ____ the bridge.A. has completedB. completedC. will completeD. had completed14. Ben hates playing _____ violin, but he likes playing ____ football.A. a…theB. the… theC. / …theD. the…/15. By the time he was 4, he ______ a lot of German words.A. had learnedB. has learnedC. learnedD. learns16 .Jim turned off the lights and then _____ the classroom.A. was leftB. had leftC. has leftD. left17.They _________ in Guangzhou since 2000.A. livedB. had livedC. have livedD. were living18. The train from Beijing_______ ten minutes ago.A. has arrivedB. was arrivingC. arrivedD. had arrived19. The students _________ their classroom when the visitors arrived.A . have cleaned B. had cleaned C. was cleaned D. have been cleaned20. Fergie_______ the project in one hour.A. have finishedB. will finishC. finishesD. has finished21. The man ________ his coat and went out.A. put onB. had put onC. will put onD. was putting on22 My mother______ in that factory at the age of 18.A. had workedB. has workedC. workedD. works23. Dad ________ while he _______ TV.A .fell asleep…watch B. was falling asleep…watchedC. fell asleep……was watchingD. had fallen asleep…watched2.用动词的适当形式填空1. We _____________ (paint) the house before we ______________ (move) in.2. That rich old man _____________ (make) a will before he _____________ (die).3. They _____________ (study) the map of the country before they ________ (leave).4. The robbers _____________ (run away ) before the policemen _______ (arrive).5. I __________ (turn off) all the lights before I ____________ (go) to bed.6. Paul __________ (go) out with Jane after he __________ (make) a phone call.7. Tom __________ (say) he ___________ (read) the book twice.8. Our plan ____________ (fail ) because we _____________ (make) a bad mistake.9. When the chairman ______________ (finish) speaking, he _____________ (leave)the hall.10.The Reads __ ______ (have) lunch when I ________________(get) to their house.11.When I ______________(arrive) at the station, he ____________________(leave).12..We _______________(learn) about 4000 English words by the end of last term.13. I waited until he _______________(finish) his homework.14. We were surprised at what she ________already ______(do)15.She ____________(not go) to Qingdao because she ________________ (go) there before.16. He ______________(not tell) you the news yet.17. He said he _____________already_________(give) the book to the teacher.18. I ______________(be) to Shanghai before.19. She told me she _________________(be) to Sanya three times.20.She _____________(play) the guitar while her sister_______________(sing).。