Section Ⅲ Grammar--复习动词时态(2)
[语 境 自 主 领 悟]
先观察原句 后自主感悟 1.This last experience had a profound effect on Timoteo.
2.He was driving a lorry load of bananas when he came off the road at a bend and fell three hundred metres down the mountain.
3.Before he volunteered to direct the traffic,Timoteo had had lots of jobs. 1.句1用了一般过去时态,表示过去某个时刻发生的动作。
2.句2用了过去进行时态,表示过去某一时刻或某一段时间内正在发生的动作,谓语动词的构成为:was/were+doing。
3.句3用了过去完成时态,表示在过去某一时刻或动作之前已经完成的动作,即"过去的过去",谓语动词的构成为:had+done。 [语 法 精 要 点 拨]
一、一般过去时
1.表示过去某个时间发生的动作或存在的状态。常与表示过去的时间状语连用(如yesterday,last week,two years ago等)。
Long long ago,there was a war between birds and beasts.
很久很久以前,鸟类和兽类发生过一场战争。
The schoolboy fell off his bike yesterday.
这个男生昨天从自行车上摔了下来。
2.表示过去一段时间内经常发生的或习惯性的动作。常与often,usually,sometimes等表示频度的词连用。
When I was a teenager,I played table tennis almost every day.
我十几岁时,几乎每天都打乒乓球。
3.在时间、条件或让步状语从句中,常用一般过去时代替过去将来时,表示过去将要发生的动作。
We would not leave until the teacher came back.
直到老师回来我们才离开。