语法 状语从句讲解

语法状语从句

由从句担任的状语，在句子中可修饰谓语（或其它动词）、形容词、副词或是整个句子，它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。

第一讲时间, 地点状语从句

时间状语从句：when, while, as, before, after, since , whenever

until, till, by the time(注意时态)

as soon as, had hardly…when, had no sooner…than,(on doing sth…)

the moment, every time/ each time, the first time, once

e.g: When he came, I had cleaned the classroom.

He didn’t stop working until his mother came bake.

He worked until his mother came back.

As soon as he returned, he bought a new flat.

He had no sooner returned than he bought a new flat

He came to scene the moment he heard the news.

I thought her nice and honest the first time

I met him.

Once he makes up your mind, he won’t change his mind.

It was two years before I met him again. = Two years passed before I met him again.

注意点 1. when引导的从句动词可以是延续性的或短暂

性的，while引导的从句中动词必须是延续

性的； while有时并不表示时间，而表示对

比，表示“而”、“却”。

When I got home I found the door locked.

While(或When)we were working in the fields, it

suddenly began to rain.

His pencil is red, while mine is yellow.

2. till与until not…until/till 解释为直到…才…主句动词一般是短暂性的

…till/until… 解释

为直到…为止主句动词一般是延续性的

一般情况下可以互换，但until可以位于句首，

till则不能。

He worked until it was dark.

He didn’t stop working until it was dark.

Until it stops raining，the children can’t go out.

＝Not until the rain stops can the children go out.

地点状语从句

引导地点状语从句的连词是where 和wherever等。

I ll go wherever the people want me to go.(wherever ＝to any place where)

He works where his grandfather fought.(where＝in the place where)

You must stay where you are. = You must stay in the place where you are.

Wherever you go, I go too.

Where there is water, there is life.(那儿有… 那儿就有… Where there is a will, there is a way.)

圈出其中的从句并翻译:

1.Whenever it is his turn to speak, he gets nervous.

2.Every time he comes, he always tells us something

interesting.

3.When I get the news, I will let you know as soon

as possible.

4.Once he makes a promise, he will never break it.

5.I had no sooner run into the school gate than I

heard the bell for class.

6.I found the lost watch under a desk after the

children had left for home.

7.He had to be called two or three times before he

came down to dinner.

8.We didn’t notice anything wrong with the washer

until we started using it.

9.The hunter made mark on the tree where he stops.

10.Wherever he is, he will find time to do some

reading.

第二讲原因、目的、结果状语从句

原因状语从句

原因状语从句是表示原因或理由的，引导这类从句的最常用的连词是because, since, as , now that（既然）等，for 表示因果关系时（它引导的不是从句）为并列连词，语气不如because强, considering that, seeing that(既然,由于) not that…but that…(不是因为…而是因为…)

e.g. He is disappointed because he didn't get the position.

Since everybody is here, let’s begin.

It must have rained last night, for the ground is still wet.

Seeing that the weather is bad, we’ll stay