内容正文:
动词的时态语态
主谓一致
动词的时态
一般现在时do/does; am/is/area.表示习惯性、经常性的动作,或经常存在的状态。常见的时间状语有often,usually, always, sometimes, now and then等。
b.按时间表、时刻表、日程表等安排将要发生的动作。只限于go, arrive, leave, start, return, begin, come等。
The train starts at 11 O’clock.
现在时态--一般现在时
c.表述客观真理、客观存在及自然现象。
My teacher said the sun rises in the east.
d.用于时间、条件状语从句中,表示将要发生的动作。
We’ll go on a picnic if it is sunny tomorrow.
现在时态
现在时态--一般现在时
现在进行时 am/is/are doinga.表示说话时正在发生的动作或表示现阶段正在进行的动作(此时此刻动作不一定正在进行)。
What are you doing these days?b.表示按计划或安排即将发生的动作,常用的这类动词有go, come, leave, start, arrive, return, work,stay,have,wear等。
I’m leaving for Beijing tomorrow.
现在时态
现在时态 -- 现在进行时
c.表示反复出现或习惯性动作,往往含有赞赏、厌恶、遗憾等情绪,常与always,continually, constantly等连用。
You are always forgetting the important things.
He is always soing well at school.
现在时态
现在时态 -- 现在进行时
现在完成时 have/has done
a.表示发生在过去而对现在仍有影响的动作或状态,常见的时间状语有already, just, yet, never, before, lately, recently, in the last/past few years, up to now, so far等。
Tina has never been to Beijing before.
The town has changed greatly in the past few years.
现在时态
现在时态--现在完成时
过去
现在
将来
持续
影响
b.表示从过去某时开始并延续至今的动作或状态,常与“for+时间段”或“since+时间点”连用。
She has been a teacher for three years.
She has been a teacher since three years ago.
c. 在条件、时间、让步状语从句中,表示将来某时间前已完成的动作。
现在时态
现在时态--现在完成时
d.This/It is the first/second...time+that从句,that从句中谓语要用现在完成时。
This is the first time that I have been here.
e.It/This is the best/worst/most interesting.…+名词+定语从句,从句中的谓语用现在完成时。
This is the best movie that I have ever seen.
现在时态
现在时态--现在完成时
现在时态
现在时态--现在完成时
延续性动词和非延续性动词
延续性动词表示能够延续的动作,如:learn, work, stand, lie, know, walk, keep等。延续性动词可以与表示时间段的状语连用。
非延续性动词也称终止性动词、瞬间动词,表示不能延续的动作,这种动作发生后立即结束。 如:open, die, close, begin, finish, come, go, move, borrow等。非延续性动词在肯定句中与表示时间点的状语连用,如:two years ago; at 5 o'clock;
延续性动词与非延续性动词之间的转换:
leave --- be away borrow --- keep buy --- have
die --- be dead