专升本英语状语从句易错点汇总
状语从句在复合句中作状语。根据句子的含义，它可表示时间、地点、原因、目的、结果、条件、行为方式、比较、让步等。
状语从句一般由连词(从属连词)引导，也可以由词组引起。从句位于句首或句中时通常用逗号与主句隔开，位于句尾时可以不用逗号隔开。
状语从句的构成：
引导词+状语从句+“,”+主句：When she came in, I stopped eating.
主句+引导词+状语从句：We were about to leave when he came in.
状语从句的关键是掌握不同状语从句的常用连接词和一些特殊的连接词。
状语从句引导词的用法
|
引导时间状语 |
when, whenever, while, as, before, after, until, till, by the time, hardly…when, as soon as, no sooner…than, the moment, the minute, immediately, directly, instantly |
|
引导地点状语 |
where, wherever |
|
引导原因状语 |
because, as, since, now that, in that |
|
引导条件状语 |
if, unless, once, in case, as long as, on condition that |
|
引导结果状语 |
so…that, such…that |
|
引导目的状语 |
so that, in order that, for fear that, lest |
|
引导比较状语 |
than, as…as, not so/as…as, the more… the more |
|
引导方式状语 |
as if, as though, as |
|
引导让步状语 |
though, although, even if, even though, as, whether, no matter what, whatever, no matter who, whoever, no matter which, whichever, no matter how, however, no matter when, whenever |
