现在完成时的构成
2022-03-05
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和过去式一样,过去分词也有两类,规则动词)加-ed构成,不规则动词有各自不同的形式,如do一done,find—found,see—seen,hear—heard。
扩展资料
现在完成时主要表示:
1)业已发生且对现在有影响的动作:
Who has broken the glass?
谁把玻璃杯打破了?(杯子破了)
I haven’t had my breakfast yet.
我还没吃早饭。(有些饿)
He’s already left for the airport.
他已动身去机场。(不在家)
2)现在以前这段时间发生的情况:
She’s just phoned.
她刚打电话来。
There has been an accident.
出了车祸了。
They have put up hundreds of tall buildings.
他们盖了数以百计的高楼。
3)持续到现在的状态:
She has been here for two years.
她在这里已经有两年了。
The meeting has already lasted for 3 hours.
会已经开了三个小时了。
We have lived here for over ten years.
我们在这里住了十多年了。
若有表示过去时间的状语则不能使用这个时态。另外have (has)got+有特殊意义,表示“有”:
How many brothers have you got?
你有多少兄弟?
He hasn’t got a car.
他没有汽车。
现在完成时的肯定、否定、疑问及简易回答形式可表示如下:
肯定句I(We,You,They)have done it 否定句I(We,You,They)haven’t done it .
He(She) has left. He(She) hasn’t left.
I(We,You,They)have
疑问句Have I(We,You,They)have done it? 简短回答 Yes,He(She) has
Has he(she) left? No, I(We,You,They)haven’t.
he (she) hasn’t.