状语从句指句子用作状语时，起副词作用的句子，可以修饰谓语、非谓语动词、定语、状语或整个句子。状语从句根据作用可以分为很多类，一般由连词(从属连词)引导，也可以由词组引起。学习它的关键是要掌握引导不同状语从句的常用连接词和特殊的连接词。所以这次小编就为大家带来了状语从句的基础知识讲解，快点学起来吧！

1、时间状语从句：
常用引导词：when, as, while, as soon as, before, after, since , till, until
特殊引导词：the minute, the moment, the second, every time, the day，the instant, immediately , directly, no sooner … than, hardly …when, scarcely … when instantly

2、地点状语从句:
常用引导词：where
特殊引导词：wherever, anywhere, everywhere

3、原因状语从句:
常用引导词：because=in that, since=now that(既然), as, for(补充说明)
特殊引导词：seeing that, now that, in that, considering that, given that（考虑到）

4、目的状语从句：
常用引导词：so that, in order that
特殊引导词： for fear that（唯恐/生怕），in the hope that（带着..希望）, for the purpose that（带着..目的）, to the end that

5、结果状语从句：
常用引导词：so … that, such … that
特殊引导词：such that, to the degree that, to the extent that, to such a degree that

6、条件状语从句：
常用引导词：if, unless,
特殊引导词：as/so long as（只要）, only if, providing/provided that（倘若）, supposing that（倘若）, in case that（以防）, on condition that

7、让步状语从句：
常用引导词：though, although, even if, even though（即使）
特殊引导词： as(用在让步状语从句中必须要倒装)，while ( 一般用在句首 )，no matter …， in spite of the fact that, whatever, whoever, wherever, whenever, however, whichever, as if=as though（仿佛）

8、比较状语从句：
常用引导词：as(同级比较), than(不同程度的比较)
特殊引导词：the more … the more … ; just as …， so…;
A is to B what /as X is to Y（A对B来说，像X对Y一样）;
no … more than; not A so much as B

9、方式状语从句：
常用引导词：as, as if, how
特殊引导词：the way

以上就是状语从句相关的基础知识，不知道大家都掌握得怎么样呢？状语从句种类虽多，但只要能掌握好引导词，也就没什么困难了。