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9A_Chapter_3现在完成时
现 在 完 成 时
一、构成形式: have / has +过去分词
二、现在完成时可用来表示:
1、过去发生的动作对现在造成的影响。
I have bought a new pair of trousers.
(Now he has a new pair of trousers.)
She has lost her earrings.
(Now she has no earrings.)
I have just had breakfast.
(I’m not hungry now.);现在完成时常与already、 just 、 never、 ever、 yet连用。
A:Have you ever read this book?
B:No, I’ve never read it.
A:Have you seen the film yet?
B:Yes, I have already seen it.
/ No, I haven’t seen it yet.
He has just gone to the library.
;2.表示从过去开始一直持续到现在的动作或状态。
a.与recently,so far, up to now, in the past/last few years 等连用。
Two bus stations have been built in the past two months.
So far, we have learned three units.
b.与today, this morning, this month, this year等连用。
Mr. Li has taught four lessons this month.
The shop has sold about 200 washers this year.;c.与since、for、how long连??。
for + 时间段 since + “过去时间”/“一过”时态
*对for、since时间状语的提问用how long。
The speaker has talked for about two hours.
He has taught Chinese in the language school since he came to London.;Fill the blanks with “since”or “for”.
1.We have lived in Pudong ____1994.
2.The film has been on ____ten minutes.
3.John has been a soldier ____a year.
4.Tom has had a fever ____the day before yesterday.
对划线部分提问。
He has been a top fashion designer for a couple of years.
The Smiths have lived in Shanghai since they came to China in 1980.
My cousin has been to the South Pole three times.
;1.These young men ____in the army for three years.(be)
2.He ____a book on physics for the last six months.(write)
3.The old man ____in the same house since he was born.(live)
4.I can’t find my dictionary. I think maybe someone ____it by mistake.(take)
5.Mr. Green ____on the computer for 12 hours. Now he is too tired to go to his friend’s dinner party.(work)
;6. The rain___.(stop) Shall we go on with our volleyball match?
7.Hi,Mike!I ___(receive)your invitation. Thank you very much! I’ll come on time.
8. They ____(not leave) because their schoolbags are still in their desk.
9.The lady ha
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