初中英语八大时态重点及构成
初中英语八大时态
一 一般现在时
1构成:构成:(原形)或 V+s/es
2 重点用法:a 客观真理。 Birds fly.
b 现阶段习惯性动作。 We have four classes everyday. c 表将来 1 The train for Guangzhou leaves at 7:00.
2) (till, until, when, as soon as等引导),条件状语从句(unless, if引导)中表将来。(主 从 )
If it rains tomorrow, we will have to stay at home.
3 often, everyday, on Sundays等)
二 一般过去时
1 构成:动词过去式不规则动词表的第二列)
2 重点用法:过去的事情 He always went to work by bus last year. 3 标志词:以及表示过去的时间( year, yesterday…) I got sick
yesterday.
三 一般将来时
1 构成will/shall do 或 am/is/are going to do ----------will+ V原形 2 重点用法:将来的事情 I will tell him about it.
3 标志词: I will be back in an hour.
以及表示将来的时间( week, tomorrow…)
四 过去将来时
1 构成 would do 或 was/were going to do---------would+V(原形) 2 重点用法 从过去某一时刻看将来要发生的事情。特别是宾语从句红,主句 said, wanted to know动词的过去式时,宾语从句中,表示过去的将来。 Linda said that she _________visit her uncle the next Saturday. He wanted to know if they would go there that afternoon
五 现在进行时
1 构成 is/am/are+Ving
2 重点用法:a说话时 Look, the child is playing in the street.
b现阶段正在进行的动作。He is building a model these days.
c 频繁发生或反复进行的动作。与always等频率副词连用,表
不满,赞扬或讨厌。 You are always talking in the class.
d come, go, leave, arrive
My brother is leaving for New York next week.
3 标志词:now, these days.
六 过去进行时
1 构成 was/were doing--------was/were+ V-ing
2 重点用法:a 由when 引导的时间状语从句,表示过去某一时刻,A动作发
生时,B动作正在进行。则A动作用一般过去时,B动作用过去进行时。The twins were sweeping the floor when the
teacher came in.
b 由While引导从句,两动作都用过去进行时。
Father was watching TV, while Mother was cooking.
c 看到有表示过去的时间,并且是(at four
yesterday)
He was mending his bike at ten yesterday.
3 o’clock the day before
yesterday.)七 现在完成时
1 构成 have/has done---------have/has+V-ed
2 重点用法:a 过去的动作,但对现在有影响。
Would you like to see a film with me? No, I have seen it.
b 从过去开始延续到现在的动作或者状态
I have been studying English for 6 yeats.
3 标志词:a already, ever just, yet, since+具体时间或者时间, for+一段时间
B by+具体的时间
4 注意事项:a 短暂性动词不能与since+具体时间或者时间或for+一段时间, I have been away from here for three days. (right) I have left here for since (wrong)
b have been to表示去过某点,已经回来了。
have gone to 去了某点,但还没回来。
八 过去完成时1 构成 had done------------had+V-ed
2 重点用法:a 过去的过去!(一定要有第一个过去,才有第二个过去,才用到过去完成时)
3 标志词:by the end of +过去的时间,即与by有关的时间状语。