高中英语语法状语从句归纳总结
状语从句
一.分类:
种类 | 连接词 | 注意区别: |
时间 状语 | when/whenever/while/as/before/after/instantly /until/till/by the time/as soon as/hardly…when /no sooner…than/the moment/the minute/immediately 有一些表示时间的名词短语也可用来引导时间状语从句:the?minute,?the?moment,?every?time,?the?first?time 例:The?moment?he?reached?the?country,?he?started?his? search. 他一到达这个国家,就开始他的探寻工作。 有一些表示时间的副词也可用来引导时间状语从句: directly 例:Directly?the?master?came?in,?everyone?was?quiet. 校长一进来,?大家就安静下来 | as和when、while: as, when 引导短暂性动作的动词。当从句的动作发生于主句动作之前,只能用when 引导这个从句,不可用as 或 while。从句表示"随时间推移"连词能用as,不用when 或while。 till/until和not…till/until: until可用于句首,而till通常不用于句首。 |
地点 状语 | where | |
the same as结构) | ||
方式 状语 | as if, as though, as, (just)as---so, | as if 和as though引导的从句一般用虚拟语气。 |
让步 状语 | Though/although/even if/even though/ as | |
adv.+that(如此……以致) so that(结果……)
such+n.+that(如果……以致) that(所以,因此)
让步状语从句: though/although不可同but连用。
though/although (虽然) however (可是) even though/if(即使)
no matter+what/which/where/who/when =whatever/whichever/wherever/whoever/whenever
(不论什么/哪一个/哪里/谁/何时)
比较状语从句: as (正如) as…as(和……一样) not as/so … as (不如……) than(比……更)
the+比较级…+the+比较级 (越……越……)
条件状语从句: if(假设) unless(如果不) so long as(只要) on condition that (如果)
方式状语从句: as(像……那样地) just as(正像) as if(好像) as though(好像)
二.各种状语从句的简化方法:
状语 从句 | 由when/while/as/once/whenever引导的时间状语从句 | 当主句的主语和从句的主语一致时,且谓语动词为be,常省略从句的主语和谓语be. |
由if/unless引导的条件状语从句 | ||
由though/although/even though/even if引导的让步状语从句 | ||
由because引导的原因状语从句 | ||
由wherever引导的地点状语从句 | ||
1.以after和before引导的状语从句的主语若与主句主语一致时,从句等于after/before+doing sth.作状语。
例:After she sang,she left the rich man's house. = After singing,she left the rich man's house.
2.以as soon as引导的状语从句的主语若与主句主语一致时,从句等于on+doing sth.,作状语,此 时的动词为非延续性动词。
例:Mary began to operate on the wounded soldiers as soon as he arrived at the village.
= Mary began to operate on the wounded soldiers on arriving at the village.
3.时间状语从句和条件状语从句的主语和主句主语一致时,有时可简化为不定式作状语。
例:She stopped when she saw her husband. = She stopped to see her husband.
If you want to understand the farmers,you must go to the countryside.
= To understand the farmers,you must go to the countryside.
4.结果状语从句和目的状语从句的主语与主句主语一致时,可以简化为不定式作状语;若两者主语不一致时,则应简化为不定式的复合结构作状语。
例:He was so tired that he couldn't go any further.= He was too tired to go any further.
I came here so that I could ask some questions.= I came here(in order) to ask some questions.
5.以when,while引导的时间状语从句和以if引导的条件状语从句的主语若与主句主语一致时,从句等于when/while/if +doing sth.作状语,表示谓语动作发生在该状语动作的进行过程之中。
例:When he turned on the radio,he found it broken.= When turning on the radio,he found it broken.
While she was walking along the street,she was hit by a car.= While walking along the street,she was hit by a car.
6.原因状语从句的主语与主句主语一致时,可简化为分词短语作状语。
例:Since l didn't know Chinese,I tried to speak to her in English.= Not knowing Chinese,I tried to speak to her in English.
注意:形容词短语也可作表示原因的状语,来代替原因状语从句,放在句首、句末均可,但一般应加逗号。
例:As he was thirsty and eager to get a little rest,he went into the tea-house.
= Thirsty and eager to get a little rest,he went into the tea-house.
7.在时间、原因、条件等状语从句中,若从句和主句主语不一致时,可简化为分词复合结构作状语。有时也可简化为“with/without名词或代词十分词(短语)”形式作状语。
例:When the film start appeared, the children got exited.= The film start appearing,the children got exited.
If all the work is done, you can have a rest.= With all the work done,you can have a rest.
Nothing can live if there is no air.= Nothing can live without air.
8.让步状语从句的主语与主句主语一致时,可简化为分词短语作状语;不一致时,常简化为with或in spite of介词短语作状语。
例:Although he faced his death,he didn't say anything before the enemy.
= Facing the death,he didn't say anything before the enemy.
Although there was danger,he rushed out to carry the boy to safety.
= In spite of danger,he rushed out to carry the boy to safety.
三.表示"一…就…"的结构
hardly/scarcely…when/before, no sooner…than 和as soon as都可以表示"一…就…"的意思, 例:I had hardly / scarcely got home when it began to rain.
I had no sooner got home than it began to rain.
As soon as I got home, it began to rain.
注意:如果hardly, scarcely 或no sooner置于句首,句子必须用倒装结构:
Hardly / Scarcely had I got home when it began to rain.
No sooner had I got home than it began to rain.
四.As引导的让步状语从句的倒装:
1.形容词+as+主语+系动词:
例:Tired as he is, he offers to help me. 尽管他已经很累了,他还是主动提出帮助我。
2.过去分词+as+主语+系动词:
例:Well-known as the book is, the author is not satisfied and prepared to revise it.
尽管这本书写得很好,作者还是不满意并打算修改它。
3.名词+as+主语+系动词:
例:Student as he is, he does not study hard. 他虽然是个学生,但却不努力学习。
4.副词+as+主语+谓语部分:
例:Much as I admire his courage, I don’t think he acted wisely.
我虽然钦佩他的勇气,但我认为他这样做是不明智的。
5.动词原形+as+主语+谓语的剩余部分:
例:Try as you will,you won’t be able to persuade him. 不管你怎么努力,你都说服不了他。