考研英语中状语从句的引导词可以分为以下几类：
1. 时间状语从句引导词：
when
after
before
while
until
till
since
as soon as
everytime
the moment
2. 地点状语从句引导词：
where
wherever
3. 原因状语从句引导词：
because
since
now that
as
4. 条件状语从句引导词：
if
whether
unless
as long as
on condition that
providing that
5. 结果状语从句引导词：
so / such ... that
so
6. 目的状语从句引导词：
in order that
so that
7. 让步状语从句引导词：
though
although
however
whatever = no matter what
even if
even though
as （倒装）
8. 方式状语从句引导词：
as
as if
9. 比较状语从句引导词：
than
as ... as
the more ... the more ...
在英语中，状语从句通常由一个连词引导，这个连词表达了主句和从句之间的逻辑关系。例如，时间状语从句可以用"when"、"while"或"as"来引导，表示某个动作发生的时候。
希望这些信息对你准备考研英语有所帮助，