完整高中英语状语从句学案

2013/7/26

高考英语语法学案

专题四——状语从句条件状从，地点状从，原因状从，结果状从，英语中的状语从句用来修饰谓语或者整个主句按照功能可以分为：时间状从，目的状从，让步状从，方式状从，比较状从。 1、时间状语从句 as用法一览表。）when、while、（1

2）引导时间状语从句的连接词除上述外还有：（一……就①as soon as ， directly, immediately, the moment, the minute …

As soon as I have finished it , I'll give yu a call.He made for the door directly he heard the knock.

②hardly / scarcely … when, no sooner … than,

表示“一……就”We had hardly got / Hardly had we got into the country when it began to rain.

No sooner had he arrived / He had no sooner arrived than she started complaining.

用法sincenot until before until …, until, before, since③till, not …用法强调，倒桩

Not until years later could I realize the value of that kind of giving. ed. Don't get off the bus until it has stopp

It was not until years later that I could realize the value of that kind of

He waited for his father until(till)it was twelve o'clock.

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2013/7/26 高考英语语法学案

giving

谓语非延续，has been ill since she came back.\She

从句非延续，自。。。以来，已经有。。。年。一段时间 It is/ has been ++since区分：It is two years since he began to smoke.

It is two years since he smoked

过了多久才？肯定句：一段时间，距离 +before

It will be five years before he returns from England. Before :1

和we waited along ime ,before he came out.

.否定句一段时间、距离+ before 过不了多久就It won't be five years before he returns from England.

还没有，还没来得及，免得he died before he wrote a wil l.I must write it down before I forget,.

④each time, every time, by the time

Each time he came to my city, he would call on me.

注意：表示未来情况，主句用将来时，从句用现在时。

2、地点状语从句：where, wherever

Make a mark wherever you have any questions.

We will go where the Party directs us.

3、原因状语从句：because,, as, since=now that

（1）表示不知道的原因时用because,即说话人认为听话人不知道，因此because从句是重要的部分，通常它被置于主句之后。

You want to know why I'm leaving? I'm leaving because I'm full.

for虽然表示不知道的原因，但其语气较because要弱得多，是可说可不说的话，它只能置于主句之后，这时，for是并列连词。如：It's morning now, for the birds are singing.（很显然，鸟叫不可能是“现在已是早上”的原因。）

（2）表示已经知道的原因时用as或since,即某种原因在说话人看来已经很明显，或已为听话人所熟悉，因此它是句中不很重要的部分。since要比as正式一些，它们通常被置于语句之前。

Seeing all of the children already seated, he said,“Since everyone is here, let's start.”

Nowthat/Since no one is against art,, let's carry out the plan.

4. 条件状语从句：if, unless, so (as) long as, on condition that. in case, once一旦注意if与unless的区别

In case anything important happens，please call me up.

My parents don't mind what job I do as long as I am happy.

You can go swimming on condition that you don't get too far from the river bank.

_______ you start eating in a healthier way, weight control will become much easier.

A. unless

B. Although

C. Before

D. Once

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2013/7/26 高考英语语法学案