内容正文:
►专题01 动词时态用法梳理
知识梳理
1、 时态梳理
英语中时态是指动词的一种形式区别,表示过去、现在或将来,或是指动词所指示的动作或状语。
Reviewing
一般式
进行式
完成式
现在
does/is/are/am
is/are/am doing
have done
过去
did
was/were doing
had done
将来
will do
will be doing
will have done
过去将来
would do
would be doing
would have done
着重关注标红时态的学习和对比
一般现在时
1. 经常性或习惯性的动作,常与表示频度的时间状语连用。
时间状语: every…, sometimes, at…, on Sunday
I leave home for school at 7 every morning.
He cycles to work every day.
2. 客观真理,客观存在,科学事实、格言或警句中。
Shanghai lies in the east of China.
Water boils at 100 centigrade degrees.
Pride goes before a fall. 骄者必败。
注意:此用法如果出现在宾语从句中,即使主句是过去时,从句谓语也要用一般现在时。
Columbus proved that the earth is round.
3. 一般现在时表将来:
(1).下列动词:come, go, arrive, leave, start, begin, return的一般现在时表将来。这主
用来表示在时间上已确定或安排好的事情。
The train leaves at six tomorrow morning.
When does the bus star? It stars in ten minutes.
(2). 倒装句,表示动作正在进行
Here comes the bus. = The bus is coming.
There goes the bell. = The bell is ringing.
(3). 在时间或条件状语从句中。
When Bill comes (不是will come), ask him to wait for me.
I'll write to you as soon as I arrive there.
(4). 在动词hope, take care that, make sure that等后。
I hope they have a nice time next week.
Make sure that the windows are closed before you leave the room.
一般过去时
在确定的过去时间里所发生的动作或存在的状态。
时间状语有:yesterday, last week, an hour ago, the other day, in 1982等。
1. 表示在过去一段时间内,经常性或习惯性的动作。
When I was a child, I often played football in the street.
He used to act like that.
2. 用在条件句中表示与现在或将来事实不符的虚拟语气。
If I were a bird, I would fly to Beijing.
If he were here now, we could turn to him for help.
注意比较下列句型:(重点)
It is time for sb. to do sth. 该去做某事了
It is time sb. did sth. “时间已迟了;早该……了”:
It is time for you to go to bed. 你该睡觉了。
It is time you went to bed. 你早该睡觉了。
would (had) rather sb. did sth. 表示“宁愿某人做某事”:
I'd rather you came tomorrow.
3.用于I didn’t know…或I forgot…,表示事先不知道或不记得,但现在已知道或记得的事情。
I didn’t know you were here.(现在已经知道)
Sorry, I forgot to bring my boo