高中英语语法状语从句归纳总结

1、状语从句分类: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/hardlywhen/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

2、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，？大家就安静卜来as和 when、while :as, when引导短暂性动作的动词。当从句的动作发生丁主句动作之前，只能用 when引导这个从句， 不口用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 nottill/until :until引用于句首，叫till通常不用于句首。地点where状语the sam

3、e a站构）方式状语as if, as though, as, （just）as-sQas 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/ asadv.+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 =whatev

4、er/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）asas （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）四.各种状语从句的简化方法:状由when/while/as/once/whenever引导的时间状语从句当主句的

5、主语和从语由if/unless引导的条件状语从句句的主语一致时，且 谓语动词为be,常省从 句由 though/although/even though/even if 引导的让步状语从句略从句的主语和谓语be.由because引导的原因状语从句由wherever引导的地点状语从句1.2.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

6、's house 3.4.以as soon a¥l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，止匕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 villag e5 .6 .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 st

7、opped when she saw her husband = She stopped to see her husbandIf you want to understand the farmers you must go to the countryside=To understand the farmers you must go to the countryside 7.8.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 a

8、ny further = He was too tired to go any furtherI came here so that I could ask some question s= I came here(in order) to ask some question s 9.10. 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.

9、= 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.11. .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

10、 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-house12. 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t十分词(短语)&#

11、39;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.13. 让步状语从句的主语与主句主语一致时，可

12、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 t

13、o safety三.表示"一就一"的结构hardly/scarcelywhen/before, no sooner-than 和 as soon astB可以表示"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置于旬首，句子必须用倒装结构：Ha

14、rdly / 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 st