1、开始于过去并将持续到现在的动作,常与下列词连用:for, since, recently, lately, so far, all this year, up till now, etc.
Ive planted 14 trees so far this morning.
---How are you today?
---Oh, I as ill as I do now for a long time.
A. didnt feel
B. dont feel
C. wasnt feeling
D. havent felt
(D) (NMET 2000)
2、在过去某个不确定的时间发生的动作,但与现在有某种联系,因为我们所关心的是现在还存在着过去发生某事的结果,常和下列词连用:ever(问句或肯定句),already(肯定句), never(否定句),yet(问句或否定句),before
--- my glasses?
---Yes, I saw them on your bed a minute ago.
A. Do you see
B. Had you seen
C. Would you see
D. Have you seen
(NMET86) (D)
eg. 1)--Have you passed your test ?
--Yes.
--When did you pass it?
--(I passed it) Last week.
2) Have you passed your test?
--Not yet.
--When will you pass it?
-- Next week.
对比:Have you seen this film? (曾经经过)
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