9大状语从句

状语从句(句子成分完整)

1原因状语从句

because, since, as, for区别:

because语气最强回答why because不与so连用

since =now that 表示显而易见的原因“既然…因为…”

as “因为…既然…语气最弱

for 就是并列连词,表示推断的原因,for前常要加逗号

注:seeing that / now that/ considering that in that/given that这几个词汇与since引导的原因状语从句意思相近,都表示“既然…考虑到”

2地点状语从句

Where wherever

Where there is a will ,there is a way、

We must camp where we can find water、

3时间状语从句

when (v延或v短)

while(v延)

as表示动作同时发生“一边…一边…随着、、”

since (自从)

before ;until ;the first time ;

every/each time ;the last time

by the time (到、、时为止)

时间状语从句考点:

★It is / has been +一段时间+since(一般过去时) 自从…已经多长时间了

★be doing sth when 正在、、突然…

★be about to do sth when 即将做某事突然

★while 除了“当、、时”之外,还有两种用法:

1)表示对比“然而”

2)表示让步“虽然尽管”

★before 除了“在、、之前“之外,还可表:还没来得

及、、就…

He hung up before I could say a word

★it +时间+before句型:

(肯)要过多就才… (否)没过多久就…、

★一…就…:

as soon as the moment / minute / instant immediately instantly directly Hardly…when No sooner …than

No sooner + had +主语+过分+than (一般过去时) Hardly + had +主语+过分+ when (一般过去时)

★By the time +句子(一般过去),主句(过完)

By the time +句子(一般现在),主句(将来完成时will have done)

4条件状语从句

if 如果;supposing ;provided假如

as long as ; so long as;on condition that ;only if 只要

in case以防以免假使; unless除非, once 一旦…在时间与条件状语从句中,

要用一般现在时表将来时,

现在完成时表将来完成时

You should not play outside unless you have finished your homework

If weather permits, I will go swimming tomorrow

5目的状语从句

目的状语从句的谓语常含有may, might, can,

could, should, would等情态动词

引导词有:so that(以便), in order that(为了;以便), Lest(免得;唯恐), for fear that(生怕;以免)。注:凡就是由lest(以免;免得),in case(以防)

与for fear that(生怕,唯恐)引导的目的状语从句中, 用“should+动词原形其谓语部分should可以省略。例如:

1、Keep quiet in case you(should)interrupt him

2、She is now studying,

for fear that she(should)fail in English.

3、You must wake him early,

lest he(should)be late forschool.

6结果状语从句

So/such…that、、句型

如此、、以至于句型so +adj /adv+that

①当出现不可数名词或名词复数时,与such…、that 连用

It is such bad weather that I am in a bad mood

②当出现可数名词单数时,so与形容词不分,such与a/an不分

such a clever boy so clever a boy

③当名词前有many much few little 修饰时,用so…、that

感叹句的用法与此句型类似,

what相当于such how相当于so

即若感叹句中出现不可数名词或名词复数时,

感叹句要用what来引导

若感叹句中出现可数名词单数时:

what a clever boy he is！

How clever a boy he is！

so that可引导目的状语从句,也可以引导结果状语从句。

He worried so that he couldn’t sleep、她急得睡不

着。

(so that引导结果状语从句)

I came to the class early so that I could catch the bus

(so that引导目的状语从句)

7比较状语从句

倍数基本句型

倍数+形容词,副词比较级+than

倍数+as +形容词,副词原级+as

倍数+the size of (height width depth weight