内容正文:
Unit 3 Grammar
The Past Simple and the Past Perfect
(一般过去时和过去完成时)
The Past Simple Tense(一般过去时)
一、概念
一般过去时是表示在过去某一时间发生的动作或存在的状态。也可以表示在过去某一阶段习惯性、经常做的动作。过去主语所具备的能力和性格。
如:The teacher often did some reading in the morning when he was a child. (这个老师在他是一个孩子时经常看书是再过去常常,反复做的动作,所以这个句子要用一般过去时)
二,基本用法
1表示在过去某个时间所发生的动作或所处的状态。常与这些时间副词连用
(1). yesterday或以其构成的短语:yesterday morning(afternoon, evening)等;
(2). 由―last+一时间名词构成的短语:last night, last year (winter, month, week)等;
(3). 由―时间段+ago构成的短语:a moment ago, a short time ago, an hour ago等;
(4). 其它:in 1989, just now, at that moment,at that time, the other day等
如:He was here just now. 他刚才还在这里。 What did you do yesterday? 你昨天做了什么事?
2在过去一段时间内的经常性或习惯性动作。常与often,always,usually等频度副词 连用。
如Sally often does some reading in the morning.
We often played together when we were children. 我们小时候常在一起玩。
注:表示过去经常发生的动作还可用used to 和would。
如:He used to smoke a lot, but he doesn’t now. 他过去经常抽烟,但现在不抽了。
3表示主语过去的特征或性格。
如:At that time she was very good at En