暂短性动词

动词时态复习
一般现在时
一般现在时常表示:
1.客观事实或普遍真理
2.经常发生,反复进行的动作或状态
3.主语现有的特征
常与下列时间状语连用:
1)often, always, usually, sometimes, never等:
2)once a year, twice a month, every year/week/day, every two days等:
现在进行时
现在进行时表示说话时或现阶段正在进行或发生的动作,常与时间状语now, this week, these days 等连用.另外,我们还要注意句中的隐含条件(如:look, listen, It's nine o'clock等).如:
The student are doing their homework.
You are working on a farm these days.
Whom are you waiting for
有些动词如come, go, leave, begin, stay, start 等的现在进行时可以表示预定的或即将发生的动作,句中常有表示将来的状语:
I'm leaving on Sunday morning.
Jim is coming here this evening.
一般过去时
一般过去时表示过去发生的动作或状态.用于一般过去时的时间状语有:
1)at that time, at that moment, just now, just then
Tom was here just now.
2)yesterday, yesterday morning/afternoon/evening, last night/week/month/Sunday/January等.
I called you last night, but you weren't at home.
3) a few days/weeks/years ago
一般将来时
一般将来时表示将要发