狀語從句

狀語從句在復合句中作狀語，修飾動詞、形容詞或副詞等。狀語從句可以表示時間、條件、原因、地點、目的、結(jié)果、讓步、方式、比較等意義。

各類狀語從句連接詞（短語）

時間

when, while, as, as soon as, since, until, after, before

條件

If, unless

原因

As, because, since

地點

Where

目的

So that, in order that

結(jié)果

So that, so…that, such…that

讓步

though, although, even if, however

方式

As

比較

than, (not)as…as

時間狀語從句：

Whenever he comes, he brings a friend. 他每次來都帶個朋友。

條件狀語從句：

As long as I am alive, I will go on studying. 只要我活著， 我就要學習。

原因狀語從句：

Since we live near the sea, we enjoy nice weather.由于我們住在海邊，能享受到好的天氣。

地點狀語從句：

Put it where we can all see it.把它放在我們都能看到的位置。

目的狀語從句：

Finish this so that you can start another.把這個做完，你可以開始另一個。

結(jié)果狀語從句：

He was so angry that he couldn’t say a word. 他氣得說不出話了。

讓步狀語從句：

Though he is in poor health, he works hard.雖然他身體不好，但是他工作很努力。

方式狀語從句：

Students do as the teachers say.學生們按照老師說的去做。

比較狀語從句：

The work isn’t as easy as I thought.這項工作比我想象得難。

1.易混引導詞while, when, as的區(qū)別：

when既可以指“時間點”,與瞬間動詞連用，也可以指“時間段”，與延續(xù)性動詞連用(=while)。如：

When he came in, his mother was cooking.

When (While) we were at school, we went to the library every day.

While表示時間段,因此，while 從句的謂語動詞要用延續(xù)性動詞。如：

Please don’t talk so loud while others are working.

As與when用法相似，但著重強調(diào)主句動作與從句動作同時發(fā)生，有“隨著……”或“一邊……一邊……”之意。如：

As you get older, you get more knowledge.隨著年齡的增長，你獲得的知識就越多。

2．Because,as,since 的區(qū)別：

Because用于表示直接原因,回答why提出的問題，語氣最強;As用于說明原因, 著重點在主句，常譯成“由于”;since表示顯然的或已知的理由或事實，常譯成“既然”。如：

Water is very important because we can’t live without it.

He didn’t come yesterday as his mother was ill.

I’ll do it for you since you are busy.

3．such…that, so…that, so that 引導結(jié)果狀語從句的區(qū)別：

such是形容詞，修飾名詞; so 是副詞，修飾形容詞或副詞。其結(jié)構(gòu)如下：

1) such + a (n)+ 形容詞+單數(shù)可數(shù)名詞+that……

2) such+形容詞+復數(shù)可數(shù)名詞+that ……

3) such +形容詞+不可數(shù)名詞+that……。如：

This was such a good film that I went to see it several times.

It was such good books that they sell well.

It was such bad weather that I had to stay at home.

He spoke so fast that I couldn’t follow him.

He is such a lovely boy that we all like him.

=He is so lovely a boy that we all like him.

注：在“形容詞+可數(shù)名詞復數(shù)/不可數(shù)名詞”結(jié)構(gòu)中，當名詞前有many, much, few, little表示數(shù)量的多少時，名詞前用so。

如：She made so many mistakes that she didn’t pass the exam.

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