一、過(guò)去完成時(shí)與現(xiàn)在完成時(shí)的區(qū)別
現(xiàn)在完成時(shí)表示的動(dòng)作發(fā)生在過(guò)去，以現(xiàn)在的時(shí)間為基點(diǎn)，但側(cè)重對(duì)現(xiàn)在產(chǎn)生的結(jié)果或造成的影響，與現(xiàn)在有關(guān)，其結(jié)構(gòu)為“助動(dòng)詞 have (has) + 過(guò)去分詞”;過(guò)去完成時(shí)則是一個(gè)相對(duì)的時(shí)態(tài)，已過(guò)去時(shí)間為基點(diǎn)，它所表示的動(dòng)作不僅發(fā)生在過(guò)去，更強(qiáng)調(diào)“過(guò)去的過(guò)去”，只有和過(guò)去某時(shí)或某動(dòng)作相比較時(shí)，才用到它。
比較：I have learned 1000 English words so far.到目前為止我已經(jīng)學(xué)會(huì)了 1000 個(gè)英語(yǔ)單詞。
I had learned 1000 English words till then.到那時(shí)為止我已經(jīng)學(xué)會(huì)了 1000 個(gè)英語(yǔ)單詞。
— I'm sorry to keep you waiting. 對(duì)不起，讓你久等了。
— Oh, not at all. I have been here only a few minutes.沒(méi)什么，我只等了幾分鐘。(“等”的動(dòng)作從過(guò)去某一時(shí)間點(diǎn)持續(xù)到現(xiàn)在)
二、過(guò)去完成時(shí)與一般過(guò)去時(shí)的區(qū)別
雖然這兩種時(shí)態(tài)都表示過(guò)去發(fā)生的動(dòng)作或存在的狀態(tài)，但在使用時(shí)應(yīng)注意以下幾點(diǎn)：
1. 時(shí)間狀語(yǔ)不同：過(guò)去完成時(shí)在時(shí)間上強(qiáng)調(diào)“過(guò)去的過(guò)去”;而一般過(guò)去時(shí)只強(qiáng)調(diào)過(guò)去某一特定的時(shí)間。
比較：They had arrived at the station by ten yesterday.
They arrived at the station at ten yesterday.
2. 在沒(méi)有明確的過(guò)去時(shí)間狀語(yǔ)作標(biāo)志時(shí)，謂語(yǔ)動(dòng)詞動(dòng)作發(fā)生的時(shí)間先后須依據(jù)上下文來(lái)判斷：先發(fā)生的用過(guò)去完成時(shí)，后發(fā)生的則用一般過(guò)去時(shí)。
She was very happy. Her whole family were pleased with her, too.She had just won the first in the composition competition.
3. 當(dāng)兩個(gè)或兩個(gè)以上接連發(fā)生的動(dòng)作用 and 或 but 連接時(shí)，按時(shí)間順序，只需用一般過(guò)去時(shí)來(lái)代替過(guò)去完成時(shí);另外，在 before ， after ， as soon as 引導(dǎo)的從句中，由于這些連詞本身已經(jīng)表示出時(shí)間的先后，因此也可以用過(guò)去時(shí)來(lái)代替過(guò)去完成時(shí)。
He entered the room, turned on the light and read an eveningpaper.
Ⅰ. MultipleChoices.
1.I lost the dictionary I ________.
A.have bought B.bought C.had bought D.had been bought
2.The train had gone when my brother _______ at the station.
A.have arrived B.arrived C.had arrived D.am arriving
3. Mary _______ of visiting her grandmother, but the bad weathermade her change her mind.
A.has thought B.thought C.had thought D.had been thought
4.------Did you meet Tom at the airport? ------No，he _______ by the time I______ there.
A.has left;got B.had left;arrived C.left;arrived D.left;had got
5.-------Why didn’t Tom attend the meeting yesterday? -------He __________ Beijing.
A.has gone to B.had gone to C.went to D.had been to
6.-------I _______ to come to help you. ------But you didn’t come.
A.have meant B.had meant C.meant D.will mean
7.Finally one of my friends _______ by Beijing University，for which she ___ five timA.were admitted; had tried B.was admitted; had tried C.were admitted; has tried D.was admitted; tried
8.------I have bought you the books you want. ------Oh，good，I _______ afraid you had forgotten.
A.was B.am C.had been D.have been
9.We _________ four thousand new words by the end of last year.
A.had learned B.have learned C.learned D.will have learned
10.Helen _______her keys in theoffice so she had to wait until her husband ______home.
A.has left;comes B.left;had come C.had left;came D.had left;would come
11. My father _________ to the hospital when I hurried home.
A. had gone B. went C. had been taken D. had been sent
12. ----- Jim, ________ you _________ your homework?
----- Yes, of course, but I ________ it late bed time.
A. do do; finished B. did do; had finished C. have done; hadfinished D. have done; finished
13. You ____ football after school. Why not go home and do yourhomework first?
A. always played B. are always playing C. have always played D.have always been playing
es
14. Eversince Picasso’s painting went on exhibit, there ____ large crowds at the museumevery day.
A. is B. has been C. have been D. had been
15. ---What do you think of my suggestion? --- Sorry. What’s that?I _____ about something else.
A. was thinking B. thought C. am thinking D. had thought
Ⅱ. Fill in theblanks according to the meanings of the sentences by using tenses of the verbs.
1. How many English songs ___________ she __________ (learn) bythe end of last month?、
2. Hardly _______ I ______ (get) on the bus when it started tomove
3. He __________________(read) the book before he was ten yearsold.
4. She said she ___________________ (see) the film before.
5. Our English teacher _________________ (teach) English inGuangxi for ten years before he came to No.113 Middle School.
6. By the end of last month, they _________________(complete)thebridge .
7. No sooner ________ I _______ (go) out than he came to see me.
89. The classroom _______________ (clean) before we ___________(get) there yesterday.
10. ________ the boy ___________ (finish) his homework before yousaw him?
11. When we got to the station, the train _____________ already_____________. (leave)
12. The book __________ by the end of last month. (finish)
13. When I got back to the shop , my bag _________________ (take)away by someone else.
14. When I arrived at the cinema, the film _________________ (be)on for ten minutes.
15. ---What’s that terrible noise?
---The neighbors ______ (prepare) for a party.
16. The mayor of Beijingsays that all construction work for the Beijing Olympics ______ ( complete) by2006.
17. The teacher, with 6 girls and 8 boys of her class, ______(visit) a museum when the earthquake struck.
18. ---Mr. Johnson didn’t turn up at the meeting yesterdaymorning, did he?
--- No. We __________ (wait) till twelve o’clock. A whole morningwas wasted.
19. ---Why haven’t you asked her to come here?
---She _______ (do) an important experiment when I found her andshe ________ (not, finish) it.
答案：
Keys:
Ⅰ. 1-5 CBCBB 6-10BBAAC 11-15. DDBCA
Ⅱ. 1. had learnt2. had got 3. had read 4. had seen 5. had taught 6. had completed 7. had gone8. had gone 9. had been cleaned, got 10. Had finished 11. had left 12. had beenfinished 13. had been taken 14. had been on 15. are preparing 16. will havebeen completed 17. was visiting 18. were waiting 19. was doing, hasn’t finished