几种时态的标志词;
一、 一般现在时：
always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays。
二、 一般过去时：
ago, yesterday, the day before yesterday, last week(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc.
三、 一般将来时：
tomorrow, next day(week, month, year…),soon, in a few minutes, the day after tomorrow, etc.
四、 现在进行时：
now, at this time, these days, at present, at the moment,etc.
五、 过去进行时：
at this time yesterday, at that time或以when引导的谓语动词是一般过去时的时间状语等。
六、 现在完成时：
a.表示说话前发生过一次或多次的动作，现在成为一种经验，一般译为汉语“过”，常带有twice, ever, never, three times等时间状语。
b. 用副词already和yet。already一般用于肯定句中，yet一般用于否定句和 疑问句中。如：We have already finished our homework.我们已完成作业了。
c.用ever 和never。多用于否定或疑问句中，表示“曾经”或“从未“等。 如：-Have you ever been to the Great Wall?你曾经去过长城吗？
d.用表示到说话为止的过去时间状语，如just, before, up to now, the past few years /so far/in the last few years/until now/by the time等
e.表示从过去某一时刻开始一直持续到现在的动作或状态。这个动作可能刚停止，可能仍然在进行。常带有for和since等表示一段时间的状语。
补充 现在完成时的标志性词语：still/lately/recently
现在完成时的标志性词组总结: already / ever /never /yet / just / before/ still /lately /since / for a long time /up to now/ until/so far/in the last few years/weeks/mouths / till now/recently/by the time/twice/ever/never/three times/just/before/up to now/the past few years/so far
七、 过去完成时：
before, by the end of last year(term, month…),etc.
八、 过去将来时：
the next day(morning, year…),the following month(week…),etc.
时态练习题：
用括号内的词的正确形式填空：
1．I _______(walk) to school sometimes.
2. He ___________ (go) to see his grandparents twice a week.
3. Mom ____________ (take) me to the park on Saturday.
4. He __________(leave) here just now.
5. One day, an old man _________ (come) to the village.
6. Once upon a time, the prince ________ (live) happily with the princess.
7.The teacher ______________ (check) the homework soon.
8. The bus _____________(start) in a few seconds.
9. He ________________ (help) with her maths these days.
10. Dad _____________ (talk) on the phone at this time.
选择填空：
（ ）1.He finished his homework yet
(A)doesn’t (B)haven’t (C) hasn’t (D) doesn’t have
( )2.My mother has worked in this factory 2 years.
(A)about (B)for (C)in (D)since
( )3. I haven't heard from him last week.
(A)since (B) for (C)ago (D)before
( )4.His father joined the party_________
(A)for three years (B)since three years ago
(C)three years ago (D)in two years' time
( )5.Mr Green isn't in the office , He to the library
(A)has gone (B)went (C)has been (D)will go
( )6. ——Have you finsheed your homework
——Yes, I it last night
(A)finish (B)finished (C)have finished (D)will finish
( )7.—— you ever to Nanjing
——Yes,I there last year.
(A)Have…gone, have gone (B)Have…been , went
(C)Did…go, went (D)Did…go,has , been
( )8.——When you Lucy in New York?
——I here for two years
(A)did…meet,have't seen (B)did…meet,haven't seen
(C)did…meet,don't see (D)would…meet,hadn't seen
( )9. My friend told me that he_________ to Hong Kong the next month.
(A)will go (B)would go (C) goes (D)went
