英语语法:现在完成时的构成和用法
时间:2018-12-18 作者:英语课 分类:英文语法词汇
英语课
1 现在完成时由“have(has)+过去分词”构成,第三人称单数用has,其他情况下都用have:
He(She,The boy)has gone home
他(她,那男孩)回家了。
I(You,We,They)have made 1 a mistake 2.
我(你,我们,他们)犯了一个错误。
2 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。
3 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 3 the glass?
谁把玻璃杯打破了?(杯子破了)
I haven’t had 4 my breakfast yet 5.
我还没吃早饭。(有些饿)
He’s already 6 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 7.
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 8 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 9+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.
1 made
v.make的过去式和过去分词
- They were not made in china.它们不是中国制造的。
- The monkey made a long arm for the peach.猴子伸臂去摘桃子。
2 mistake
n.错误,误会;v.犯错,误认
- Don't make the same mistake again.不要再犯同样的错。
- I made a mistake but you should give me a chance.我犯了一次错误,但你应该给我一次机会。
3 broken
adj.坏掉的,患病的,被制服的,断掉的;vbl.break的过去分词
- He is mending a broken cup.他在修补破杯子。
- Something was broken in my engine.我的发动机里有个东西损坏了。
4 had
vbl.have的过去式和过去分词;conj.有
- I just had a good idea!我有个好主意!
- The boy had a small branch of a tree in his hand.这个男孩手上拿一条小树枝。
5 yet
adv.还,仍然,即刻;conj.尽管,然而
- I am not ready yet.我还没有准备好。
- Beautiful as she is,she didn't find a boyfriend yet.尽管她很漂亮,但还没找到男朋友呢。
6 already
adv.已经
- We have eaten already.我们已经吃过了。
- I've been there already,so I don't want to go again.我早已去过那里了,所以我不想再去了。
7 accident
n.事故,意外的事
- He had a traffic accident.他出了交通事故。
- An accident was happened yesterday.昨天发生了一起事故。
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