内容正文:
动词时态复习(一)
一、一般现在时
1. 表示习惯性的动作,常与always, never, every day, often, sometimes等连用。如:
The postman always calls at 7:30.
2. 表示主语的特征、性格或能力。如:
Ellen is an honest girl, and you can trust her.
Jack writes good English but does not speak well.
3. 表示不受时间限制的客观存在,如客观真理、格言、科学事实等。如:
Facts speak louder than words.
Food easily goes bad in hot weather.
4. 在时间和条件状语从句中代替一般将来时。如:
Where will you stay when you get to San Francisco?
I'll pay you double if you finish the work by Friday.
5. 表示按规定、计划、安排发生的动作,常用动词有go, come, arrive, leave, start等。如:
The flight for Shanghai leaves at 8:30 tomorrow morning.
二、现在进行时 (构成形式为:am / is / are +动词-ing形式)
1. 表示说话时正在进行的动作或发生的事。如:
The children are making a snowman in the yard now.
2. 表示现阶段正在发生的事,此刻不一定在进行。常用的时间状语有these days, this week, at present等。如:
We are preparing for the coming exam these days.
3. 表示一个按计划即将发生的动作,所用动词多是转移动词,如arrive, come, go, leave, return等。如:
The headmaster is leaving for Beijing this weekend.
4. 表示经常性的动作,常与always, forever等连用,表示赞叹、厌烦等情绪。如:
David is always he