（1）引导时间状语从句的从属连词when, while, as, wheneverbefore, aftersince, until, tillas soon as
（2）引导条件状语从句的从属连词if, unless, as/so long as, in case...注意：条件状语从句和时间状语从句中，位于动词的时态一般用一般现在时代替一般将来时。
（3）引导目的状语从句的从属连词so that, in order that, in case...
（4）引导结果状语从句的从属连词so that, so...that, such...that
（5）引导原因状语从句的从属连词because, as, since, now that
（6）引导让步状语从句的从属连词though, although, even if，even though, while, however, what ever, no matter how
（7）引导方式状语从句的从属连词as, like, as if, as though, the way
（8）引导地点状语从句的从属连词where, wherever, everywhere, any where
（9）引导比较状语从句的从属连词than, as...as..., not as/so...as, the same...as
（10）引导名词行从句的从属连词that, if, whether
