从属连词的用法.docx

精品文档，仅供学****与交流，如有侵权请联系网站删除
【精品文档】第 1 页
从属连词的用法
从属连词的用法
从属连词
从属连词分为两大类，即引导状语从句的从属连词和引导名词性从句的从属连词。
1、引导状语从句的从属连词
英语中大多数从属连词用来引导状语从句，并且引导的状语从句位置比较灵活，大多位于主句之前或之后皆可，位于主句之前时通常用逗号隔开。从引导状语从句的连词的意义来看，可分为引导时间、原因、结果、目的、让步、条件等名种从句的连词。
（1）引导时间状语从句的从属连词
①此类连词主要有：when, while, after, before, as, as soon as , now(that), until, till, once, since,whenever, no sooner...than, hardly/barely/scarcely...when等。
When I got to the theatre, I found that they had sold all the ，我发现票已售完。
We should strike while the iron is 。
Since he entered the university, he has made great progress in his ，他在学业上已经取得了很大进步。
精品文档，仅供学****与交流，如有侵权请联系网站删除
【精品文档】第 3 页
They kept on working until it became 。
Once you begin , you must go on. 你一旦开始，就必须继续下去。
You seem to have a ready-made answer, whenever I ask you a , 你总好象有现成的答案。
Now (that) you are here, you'd better ，那就不要走了。
No sooner had they got to the field than it began to 。
Hardly had he set foot on his native land when he felt 。
注意：no sooner, hardly等位于句首时需用倒装语序。
②every time, each time, next time, the last time, the moment等，引导句子其作用相当于一个时间状语从句。
She felt a thrill the moment she got into the 。
Every time he got to Beijing, he came to see ，他都来看我。
（2）引导原因状语从句的从属连词
此类连词主要有because, as, since, now(that)，等。because引导的从句表示产生某种结果的必然的因果关系，语气较重，可回答why问句；since语气较轻，常位于句首；as则语气最轻。
精品文档，仅供学****与交流，如有侵权请联系网站删除
【精品文档】第 3 页
We couldn't cross the river because the water had ，所以我们没能过河。
Since everyone is here, let's ，我们就开始吧。
I must stop writing now, as I have rather a lot of work to ，因为我还有许多工作要做。
Now that you've got a chance, you might as well make full use of it. 既然你有了这个机会，你可以充分的利用它了。
The Italian boy was regarded as a hero because he gave his life for the ，所以他被誉为英雄。
Why use wood when you can use plastic?既然能用塑料, 为什么还要