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高考英语状语从句知识点总结
一、基本概念
状语从句概念
状语是句子的重要修饰成分，用来说明时间、地点、原因、目的、结果、条件等。状语从句是在复合句中作状语的句子，由连词引导，与主句连接。
【例 1】I was doing my homework when my mother came in.
【例 2】He did not leave until his boss called him.
状语从句的分类
状语从句分为 9 类，分别是：时间状语从句、地点状语从句、原因状语从句、结果状语从句、条件状语从句、目的状语从句、让步状语从句、方式状语从句、比较状语从句。
二、时间状语从句
定义：表示时间的状语从句。
引导词及用法
常考引导词 含义 例句
before 在…… 之前 My father had left for Canada just before the letter arrived. It will be four days before they come back.
after 在…… 之后 After you think it over, please let me know what you decide.
When 当…… 时（可加延续 / 非延续动作） We were about to leave when he came in. The doorbell rang when we were watching TV.
while 当…… 时（只能加延续动作） While my wife was reading the newspaper, I was watching TV.
as 一边…… 一边…… We always sing as we walk.
since 自从 I have been in Beijing since you left.
till/until 直到 I didn't go to bed until (till) my father came back.
as soon as 一…… 就 As soon as I reach Canada, I will ring you up.
by the time 到…… 时间为止 By the time you came back, I had finished this book.
三、地点状语从句
定义：表示地点、方位的状语从句。
引导词及用法
常考引导词 含义 例句
where 在…… 地方 We must camp where we can get water.
wherever 无论什么地方 Written Chinese spreads Chinese culture wherever it goes.
四、原因状语从句
定义：用来说明主句原因的从句。
引导词及用法
常考引导词 含义 例句
because 因为 He can't come because he is ill.
as 由于 As we've no money, we can't buy it.
since 既然；由于 Since you don't trust him, you should not employ him.
now that 既然 Now that you have come, you’d better stay.
considering that 既然；鉴于 Considering that you are no longer involved with this man, your response is a little extreme.
seeing that 既然 Seeing that it's raining, we'd better stay indoors.
五、目的状语从句
定义：从句部分用以补充说明主句中谓语动词发生的目的。
引导词及用法
常考引导词 含义 例句
so that 以便 I got up early so that I could catch the first bus.
in order that 为了 I got up early in order that I could catch the first bus.
六、结果状语从句
定义：表示结果的状语从句。
引导词及用法
常考引导词 含义 例句
so...that 如此…… 以至于…… The wind was so strong that he could hardly move forward.
such...that 如此…… 以至于…… It is such nice weather that I would like to go to the beach.
【注意】
such + a/an + 形容词 + 名词 = so + 形容词 + a/an + 名词
例：The boy is so young that he can't go to school.
= He is such a young boy that he can't go to school.
七、条件状语从句
定义：条件实现后，主句动作才发生。
引导词及用法
常考引导词 含义 例句
if 如果 If you ask him, he will help you.
unless = if...not 除非 Unless it rains, the game will be played.
on condition (that) 在…… 条件下 I can tell you the truth on condition that you promise to keep a secret.
in case 万一 In case you need any help, here is my number.
as/so long as 只要 So long as one keeps calm, one doesn't feel the heat too much.
suppose/supposing (that) 如果 Supposing it rains, shall we continue the sports meeting
provided/providing (that) 如果 He will sign the contract provided we offer more favorable terms.
八、让步状语从句
定义：表示 “尽管……”“即使……”，退一步说。
引导词及用法
常考引导词 含义 例句
though/although 虽然 Although/Though he was exhausted, he still kept on working.
while 尽管 While I am willing to help, I do not have much time available.
as 尽管 Hard as he works, he makes little progress.
even if/though 即使 Even if/though you did see someone, you can't be sure it was him.
no matter + 疑问词 = 疑问词 + ever 无论 No matter what happened, he would not mind. = Whatever happened, he would not mind.
九、比较状语从句
定义：用于形容词、副词原级、比较级、最高级。
引导词及用法
常考引导词 含义 例句
as...as 和…… 一样 My hometown is as beautiful as Hangzhou.
not so/as...as 和…… 不一样 The film today is not so interesting as the one yesterday.
more...than 更 He moves more slowly than his sister does.
the more...of 两者中更…… 的 The film is the more moving of the two films.
no/not + 比较级 + than 和…… 不一样 I have no/not more than two dollars left in my pocket.
十、方式状语从句
定义：表示行为方式的状语从句。
引导词及用法
常考引导词 含义 例句
as 按照；正如 As water is to fish, so air is to man.
as if/though 好像 He looks as if/though he had been hit by lightning.
(in) the way 按照…… 的方式 They didn't do it the way we do now.

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