文档介绍：状语从句
状语从句分类:
时间:while,when,as,whenever,until,not...until, as soon as,the first time,after,before,since
地点:where,wherever
原因:because, as, since, now that, for
结果:so...that, such...that
目的:so that
条件:if,so/as long as,as/so far as,unless,in case
让步:although, though, whatever, whenever, whichever, however, no matter how, even though/if
比较:than, as...as
时间状语从句
,as,while的区别
a)当从句表示一段时间时可通用
I met lily when/while/as I was walking along the street.
b)as和when用于终止性动作;while只能用于延续性动作
It was snowing when I got to the airport.
c)as强调主从句几乎同时发生的动作
He looked behind from time to time as he went.(一边...一边)
d)when可表示主从句的动作同时或先后发生
When she reached home,she had a little rest.
d)since“自从”
I have been studying English since I was ten years old.
e)until/till“直到...为止”主句要用延续性动词;not until表示“直到...才”
I waited until he arrived.
I won’t leave here until I finish teaching.
f)as soon as“一...就”。主将从现
I will phone you as soon as I get home.
g)the first time后接从句
I fell in love with her the first time I saw her.
比较状语从句
a)比较级+than
He is teller than you.
b)as+形/副原形+as“和...一样”;其否定形式为not so/so ...as
He is as smart as you.
He doesn’t run so/as far as Tom.
结果状语从句
a)so/such...that“如此...以至于”
so+形容词/副词+that
It is so beautiful that I can’t help staring at it.
so+形容词/副词 a/an+单数可数名词+that
He is so nice a man that I want to make friend with him.
such+a/an...that
He was such a handsome boy that I fell for him the first time I saw him.
such+形/副+复数/不可数+that
He told us such funny stories that we all laughed.