标志词：often, usually, sometimes, always, every day, twice a week, how often
标志词：yesterday, last week, ago, just now, in+过去的年份，this morning 等
标志词：tomorrow, from now on, next year, this evening, tonight, in the future, soon, in +一段时间，how soon 等。
注意：1 短暂性动词的现在进行时表将来，常用词有come, go , arrive, leave等
The bus ___________(come).
He __________(leave) for Shanghai tomorrow.
标志词：now, look, listen, at eight, at the moment, be quiet, keep silent
标志词：then, at that time, at this time yesterday, at eight last night, when, while
（6） 现在完成时：表示过去发生的动作一直延续到现在，或者对现在造成的影响。 标志词：for, since, ever, never, just, already, yet, in the past/last year, so far, twice… 注意：1 for, since
It is + 一段时间+ _______ +句子（一般过去时）
I have worked here ________ a year ago/ 2009.
I have worked here _______ I came here last year.
I have worked here _______ a year.
It’s a year _______ I worked here.
2 already, yet
I have ________ read the book.. I haven’t read the book ________.
3 have/has been to, have/has gone to, have/has been in
_______________ 曾经去过某地（已返回）_________________去了某地（还没回） ________________ 去或来到…… (一直呆在那儿)
---_______ you ________ Beijing? ---I __________ there twice.
---- Where is Jim? ---He ___________ the library.
My uncle ____________ Shanghai for a week.
Come/go/arrive ------ be (in) leave----- be away from borrow ---- keep
Die----- be dead buy---- have join--- be a …/ be in…
Begin/start---- be on end/finish---- be over open---- be open close--- be closed
The film began ten minutes ago =
The dog died two days ago.=
He bought the bike three years ago.=
How long can I ______ the book? --- You can______ it for a week.
(7)过去完成时: 过去完成时主要表示在过去某时前或某一动作发生之前, 已发生的动作或已经存在的状态。它强调“过去的过去”的动作。它也用来表示在过去的时间内，两个动作的一先一后。先完成的那个动作要用过去完成时，后一个动作要用一般过去时。
标志词：when, after, before, by the time, by the end of last…等
By 5:00 yesterday morning we had done that work.
I had learnt 5000 words before I entered the university.
My brother told me that he would be back on Saturday.
He said that the meeting would begin at half past nine this morning.
1．The boy is happy because he ___________(sell) out all the newspapers.
2．The plan _____________(give) up because of rain.
3．If it __________(not rain) tomorrow, we ____________(go )fishing.
4．Where ____________you____________(be) these days?
5．Where is Tom? He _________(go) to the post office. He said he _________(come) back soon.
6．Mike says he _________(want )to be a worker after he _________ (finish )school.
7．The last bus ____________just ________(leave) when they ________(get) to the bus stop.
8．She _________(not go) to bed until she _______(finish) her work.
9．Light ___________(travel )much faster than sound.
10．I __________(feel) much better after I _______(take) the medicine.
11．“Where ________we________(meet)?” “Let’s meet outside the park gate.”
12．I_________(be) afraid Mr Johnson __________(not visit) out school tomorrow.
13．I _________(lost) my bike ._________you _________(see) it anywhere?
14．________this kind of car __________(produce) in Shanghai?
15．We __________(see) several members of the family since we ________(arrive)
16．I found that the students _________(play) football on the playground.
17．The shop ___________(close) at this time of day.
18．Where ________your watch _________(lose)?
19．________the doctor __________(send) for last night?
20．Three children ___________(take) good care by the nurse.
21．Some children ___________(take ) good care by the nurse.
22．Some new houses _________(build) by the villagers themselves.
23．What language ________(speak) in Australia?
24．The colour TV _________(buy) in that shop three days ago.
25．He said he __________(stay) here for another two days.
26．The doctor said Jim must ________(operate ) on at once.
27．“__________the bridge _______(repair) yet?”
“Yes, the workers_______ already______(repair) it.”
28．We are in Grade One this year, so we _________(teach ) physics next year.
29．“Where _________(be) you last night?”“I_________(ask) to help Tom at home”
30．The big tree ________(blow)down in the storm last night.
31．I________ never ________(eat) such delicious noodles before.
32．When we reached the town, it _______(get) dark.
33．We ________(have) lunch when suddenly someone knocked at the door.
34．Lucy said she ________(visit) the school the next month.
35．I ________(wait) until he comes back.
36．You ________(watch) TV after supper, aren’t you?
37．They _________(be) to that small village several times.
39．Can you tell me if it _________(snow) tomorrow?
40．Could you tell me if you _________(read) the story book?
41．He said the lights in the room _________(go) out when he opened the door.
42．I _________(be) fifteen soon.
43．Tom, your aunt _______(come) this afternoon .
44．My teacher often _________(tell) us not to play on the street.
45．They________(plant) trees on the hill. Do you see?
46．The teacher said that the earth ________(move) round the sun.
47．She said she _______(put) on a new coat the next day.
48．The Great Wall _________(know) all over the world.
49．Could you tell me where Alice ________ (live)?
50．________the film ______(show) many times since last Sunday.
51．________the street lights usually _______(turn) on at seven in summer evening?
52．I _______(not go) to the cinema because I ________(see) the film before.
53．It ________(get) dark. What about ________(go) home at once?
54．You ________(be) late if you __________(not hurry).
55．Use your head and you _________(find) a better way.
56．Look！Someone ________(lie) on the floor.
57．It __________(rain) harder now. It ________(rain) quite often in summer.
58．Here _______(come) the bus.
59．I don’t know when the manager ________(return), but when be _________(come) back I _________(let) you know.
60．“Where ________(be) you this time yesterday?”
“I________(be) at home. I _______(go) over my lessons then.”
KEY:1．has sold 2．will be given up/ has been given up 3．Doesn’t rain, will go 4．have, been5．has gone, would come 6．wants, finishes 7．had, left, got 8．won’t go, finishes9．travels 10．felt, had taken 11．shall/will, meet 12．am, won’t visit13．have lost, Have seen 14．is, produced 15．Have seen, arrived 16．were playing17．is closed 18．was, lost/ has, bee lost 19．was, been sent 20．was inverted21．are taken 22．have been built 23．is spoken 24．was bought25．would stay 26．be operated 27．has, been repaired, have repaired 28．will be taught
29．were ,was, 30．was blew 31．have, eaten 32．got/ had got 33．were having
34．would visit 35．will wait 36．are watching 37．have been 38．snows
39．had studied 40．have read 41．had been gone 42．will be/ am 43．will come
44．tells 45．are planting 46．moves 47．would put 48．is known 49．lives
50．has, been showed 51．are, turned 52．won’t go, have seen 53．gets, going
54．will be, don’t hurry 55．will find 56．is lying 57．is raining/ rains, rains
58．comes 59．will return, comes, will let 60．were, was, was going