过去式的结构:肯定句:主语+be动词(was,were)+其他;否定句:在动词后面加上not;疑问句: Be动词(Was/Were)+主语+其他。
(1)肯定句: 主语+be动词(was,were)+其他
---She was a student two years ago.两年前她是一个学生.
否定句: 主语+be not(was not, were not)+其他
---She was not a student two years ago.两年前她不是一个学生.
疑问句: Be动词(Was/Were)+主语+其他
---Was she a student two years ago?两年前她是一个学生吗?
(2)肯定句: 主语+动词的过去式+其他
---She ate three apples yesterday.昨天她吃了三个苹果.
否定句: 主语+did not+动词原型+其他
---She did not eat three apples yesterday.昨天她没吃三个苹果.
疑问句: Did+主语+动词原型+其他
---Did she eat three apples yesterday?昨天她吃了三个苹果吗?
注意:wasn't 是 was not 的缩写.weren't 是 were not 的缩写.didn't 是did not 的缩写.
常用的时间状语:
yesterday昨天 two days ago,three days ago(两年前,三年前)等等.
long ago很久以前 last + week(year, night, month…)上一周,去年,昨晚,上个月等等.
in 1989,in 2008等等.
a moment ago 刚才,just now
一、构成方法
一般过去时用动词的过去式构成,即在动词原形后加ed。
二、用法说明
1、表示在过去某个时间所发生的动作或所处的状态。常与yesterday, last week, in 1989, just now, a moment ago, the other day等连用。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。如:
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 know. 他过去经常抽烟,但现在不抽了。
Whenever we were in trouble, he would help us. 每当我们遇到困难,他都会帮助我们。
3、表示主语过去的特征或性格。如:
At that time she was very good at English. 那时她英语学得很好。
4、用在状语从句中表示过去将来。如:
He said he would wait until they came back.
5、一般过去时有时可以表示现在,多与 want, hope, wonder, think, intend 等动词连用,使语气更委婉。如:
I wondered if you could help me. 不知你能不能帮我一下。
6、有时用一般过去时也是时态一致的需要。如:
I didn't know you were here. 没想到你在这里。
注意:
1. 表示一系列的动作,尽管有先后,都用一般过去时,最后两个动词之间用and连结。如:
He opened the door, rushed out and then disappeared. 他打开门,冲了出去,然后就消失了。
2. 注意在语境中理解“我刚才/原来还不……”。如:
—Your phone number again? I didn't quite catch it. —It's 2566666. 请再说一次你的电话号码,好吗?我刚才没听清楚。是2566666。
一般过去时的结构很简单,动词使用过去时就可以,只是要注意,动词过去时有规则变化和不规则变化两种情况。