现在完成时与现在完成进行时PPT课件.pptx

Form: have/has + done
Present Perfect Tense
Part A
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1我们用现在(xiànzài)完成时来讲发生在过去的动作，但是对现在(xiànzài)有影响。
They have cleaned the classroom. (They cleaned the classroom and the classroom is clean now.)
I have finished my homework. (I finished my homework and I am free now)
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The boy is very happy.
The boy ___________ (catch) a bird.
(Connection with the past: The boy caught a bird. Connection with the present: The boy is happy. )
has caught
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Look, the window is open. Eric opened the window just now.
Eric ___________________(already open) the window.
(Connection with the past: Eric opened the window.
Connection with the present: The window is open.)
has already opened
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The boys are tired. They _____________ (just play) a ball game.
(Connection with the past: The boys played a ball game.
Connection with the present: The boys are tired.)
have just played
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2 现在完成时还可以表示动作(dòngzuò)发生在过去一直延续到现在。常与一段时间连用
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has lived
Daniel __________ (live) in Beijing since he came to China.
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________________________________
past now future
came has lived
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He hasn’t given me any more trouble since then.
We have discussed the topic for 3 days
They have made rapid progress during/in the past few years
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注意：在现在完成时中，短暂性动词不可以与for，since引导(yǐndǎo)的延续性时间状语连用。
He has arrived in China. (√)
He has arrived (短暂性动词(dòngcí))in China for 5 years (×)
It is /has been （延续性动词(dòngcí)） 5 years since he arrived in China.
He has arrived in China since 1980
He has been in China since 1980.
×
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