As / When I came home, I met an old schoolmate of mine. 我回家的时分遇到了我的一位老同学。

I'll ring you up as soon as I get an answer from him. 我一有他的回答就给你打电话。

Once you see him, you will never forget him. 你一旦见过他,就不会忘了他的。

Whenever we met with difficulties, they came to help us. 每当我们遇上艰难的时分,他们就来帮我们。

Each time he came to town he would visit our school. 他每次进城,总要来看看我们的学校。

Every time I went to his house, he was out. 我每次去他家,他都进来了。

It is just a week since we arrived here.(It is /was… since…是常用句型)

我们到这儿刚刚一星期。(主句的动作或状态持续时间较短,不能用ever since)

Things went well until/till one night an accident happened. 事情一切正常,直到有一天晚上发作了意外。

2.地点状语从句

地点状语从句是由where(在……的中央),wherever(无论哪里)引导的:

Wuhan lies where the Yangtze and the Han River meet. 武汉位于长江和汉水汇合处。

Where there is a will, there is a way. 有志者,事竟成。

You'd better make a mark where you have any questions.(这里where引导的从句不是定语从句)哪儿有问题,你最好在哪儿做个记号。

He would keep in touch with us wherever he was. 他无论在什么中央,总与我们坚持联络。

3.原因状语从句

表示原因的状语从句能够由as(由于),because(因为),since(既然),now (that)(既然),considering that(顾及到),seeing that(由于)等连词引导:

I do it because I like it. 因为我喜欢我才干。(because不能与so连用)

Seeing (that) quite a few people were absent, we decided to put the meeting off. 由于好些人都没到会,我们决议延期开会。

Now that/Since you are all here, let's try and reach a decision. 既然大家都来了,咱们就设法做出一个决议吧。

As she was ill, she didn't come to the party. 由于病了,她没来参与晚会。

Considering that they are just beginners, they are doing quite a good job. 思索到他们才刚刚学做,他们干得算很不错的了。

4.目的状语从句

引导目的状语从句的主要连词有:that, so that(以便), in order that(为了), for fear that(以便), in case(万一)等,从句中常常运用一些神态动词,如:can, could, may, might, should等。如:

Let's take the front seats (so) that we may see more clearly.

我们坐前排吧,这样我们看得更分明些。

School was closed early in order that the children might go home ahead of the storm. 早点儿放学是为了让孩子们在暴风雨到来之前回家。

He took the name down for fear that he should forget it. 他把名字写下以免忘了。

(该从句中一般用神态动词should+动词原形,或省略should)

Better take more clothes in case the weather is cold. 最好多带些衣服以防天气会冷。

5.结果状语从句

引导结果状语从句的连词有:so that(从句中不带神态动词),so…that(如此……以致……),such…that(如此……以致……)等。

He didn't plan his time well, so that/so he didn’t finish the work in time. 他没把时间计划好,结果没按时完成这项工作。

We left in such a hurry that we forgot to lock the door. 我们走得匆忙,把门都忘了锁了。(such是形容词,后接名词)

The village is so small that it cannot be shown in the map. 这村子太小,所以这地图上没有。(so是副词,后接形容词或副词)

Jenny is such a clever girl that all the teachers like her very much = Jenny is so clever a girl that…Jenny是如此聪明的女孩,以致教员们都十分喜欢她。

但是,当名词前有many, much, few, little(少)修饰时,要用so,不能用such。例如:

I have had so many falls that I am black and blue all over. 我摔了许多跤,以致于浑身青一块,紫一块。

He has so few friends that he often feels lonely. 他朋友很少,所以经常感到孤独。

I had so little money then that I couldn't afford a little present. 我当时囊中羞涩,连一份小小礼物都买不起。

6.条件状语从句

表示条件的状语从句能够由if(假如),unless(除非),in case(万一),so /as long as(只要),as/ so far as(就……而言),on condition that(条件是……),suppose(假定),supposing(假定)(仅用在问句中)等词或词组引导。一般状况下当主句是未来时的时分,从句要用一般往常时。

As/So long as we don't lose heart, we'll find a way to overcome the difficulty. 只要我们不灰心,我们就能找到抑制艰难的办法。

Send us a message in case you have any difficulty. 万一有什么艰难,请给我们一个信。

If you leave at 6 o'clock tomorrow morning, you'd better get to bed now. 假如你明早6点钟走,你最好往常就上床。

We'll let you use the room on condition that you keep it clean and tidy. 只要你能坚持整洁,我们能够让你运用这个房间。

As/So far as I know, he is an expert on DNA. 据我所知,他是一个DNA专家。

He'll accept the job unless the salary is too low/ if the salary is not too low. 他会接受这项工作的,除非薪水太少/假如薪水不太少的话。

Suppose/Supposing we can't get enough food, what shall we do? 假定我们弄不到足够的食物,那我们怎么办?

7.方式状语从句

方式状语从句常由as(与……一样), as if(似乎), as though(似乎)等词引导:

Do in Rome as the Romans do.入乡随俗。Leave things as they are.让一切顺其自然。

She stood at the door as if (=as though) she were waiting for someone.

她站在门口,似乎在等人似的。(由as if或 as though引导的从句中可用虚拟语气)

8.比较状语从句

比较状语从句常由than(比), as(与……一样)等词引导:

It rains more often in Shanghai than in Beijing.上海下的雨比北京的多。

Our country is as big as the whole of Europe.我们的国度同整个欧洲一样大。

The result was not as/so good as I had expected.结果不如我意料的那么好。

The busier he is, the happier he feels.(常见句型)他越忙越开心。

9.退让状语从句

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