北木教育 > 托福 > 托福文章 > 托福长难句----状语从句2
发布时间:2018-09-12 北京智赢
上期文章我们了解了什么是状语从句,这期将总结状语从句常见的连词并讲解它相应的时态规律。
上期文章我讲到了状语从句的9种分类,但在实际应用中,其实没必要将9种分类记得特别清楚,只要把能做连词的单词或词组记住,避免双谓语或误把介词当连词使用(介词不能连接两个句子),然后针对不同的连词用对时态,就可以算是掌握状语从句了。
状语从句中常用的连词(跟其它从句相比,状语从句的连词非常丰富,要注意):
1. 时间状语从句中常用连词:
when, as, while, as soon as, before, after, since, not...until, until/till
2. 地点状语从句中常用连词:
where, wherever, anywhere, everywhere
3. 原因状语从句中常用连词:
because, since, as, seeing that, now that, in that, considering that, given that.
4. 条件状语从句中常用连词:
if, unless, whether, as/so long as, only if, providing/provided that, supposing that, in case, on condition that
5. 目的状语从句中常用连词:
so that, in order that, lest, in case, for fear that,in the hope
that, for the purpose that, to the end that
6. 结果状语从句中常用连词:
so… that, such… that, to the degree that, to the extent that
7. 让步状语从句中常用连词:
though, although, even if, even though, as,while,no matter …,
in spite of the fact that, whatever, whoever, wherever, whenever,
however, whichever
8. 方式状语从句中常用连词:
as, as if, how, the way
9. 比较状语从句中常用连词:
as, than, the more… the more…, just as…,so…, no… more than,
not so much… as
状语从句的时态:
状语从句的时态要求,跟定语从句相似,只要所使用的时态和想表达的语意相符即可,相对比较自由,但有一种情况除外:
一般情况下,时间和条件状语从句的谓语动词一般用“一般现在时”表示“一般将来时”,用“现在完成时”表示“将来完成时”。也就是我们常说的“主将从现”——主句使用将来时(也可是祈使句或一般现在时下的情态动词),从句使用一般时,即使从句的语意表达的是将来的时间,如:
I will call you as soon as I arrive in Beijing tomorrow.
As soon as I have finished this work, I will have gone home.
If he comes back next week, please let me know.
需要用到“主将从现”这个语法现象的状语从句,主要是时间状语从句和条件状语从句,所以这种语法现象的提示词,主要就是时间和条件状语从句的连词:
when, as, as soon as, before, after, not...until, until/till, if, unless, whether, as/so long as, only if, providing/provided that, supposing that, in case, on condition that
当句子中出现以上连词时,且表达的意思是提出一个直接或隐晦的条件的话,那么则需使用“主将从现”这个语法现象。