文档介绍：Present perfect tense
现在完成时态
一、现在完成时谓语动词的构成: 助动词have/has(not) +V-ed(过去分词)
I ______________(finish) position already.
He ___________(learn) English for three years.
We/You/ They….
She….
have finished
has learned
过去分词的构成
规则形式-- ed 不规则形式
repair-repaired
--- e +d
双写辅音+ed
stop/mop/travel
▲现在完成时态的含义是表示过去发生的或已完成的动作对现在造成的影响或结果。特点是既涉及过去,又联系现在:动作是过去发生的,结果是现在存在的。
She has gone. (她走了。) 从这句话中动词所用的现在完成时态可以看出“走”的动作是过去发生的,而对现在所造成的结果是她不在这里了。
He speaks French so fluently. He learned it in Paris. He was there for two years. He has studied French.
(他学过法语。) 这句话所说明的结果是他现在懂法语。
Look! The blackboard is so clean now. He has cleaned the blackboard.
(他已经擦过黑板了。)  这句话所表示的结果是黑板现在是干净的。
现在完成时用法(一)
过去的(结束性)动作产生的影响或结果现在还存在。
, get, finish, borrow, open, stop, begin, go, come, die, fall, …
时间状语常用already, just, yet, ever, before, once( 一次),recently 等不具体的过去时间或不带有时间状语
I ________ (do) my homework already.
He _____________(not finished) his homework yet.
_______you ever ______ (be) to Haiwaii?
We ______ never ______ (see) such an exciting match before.
Mother _____ just _______(clean) the house. Please don’e in.
They _________________(practice) this dialogue twice.
have done
has not finished
Have
been
have
seen
has
cleaned
have practiced
I _____________( not hear) from her yet.
_____they _______(be) here recently?
Yes, they have.
I ___________(be) busy recently.
---_____your father ever ______ (travel) to New York?
---No,never.
He __________________(not travel) by plane yet.
haven’t heard
Have been
have been
Has travelled
hasn’t travelled
For ….
Since…
How long have/has sb …….? lived learned owned
The door has been open for a whole day.
The windows have been closed since 7:30.
I have had this bike for a year/since last year.
My teachers have been busy/ free these days.