时间状语从句:when、while、as、after、before、as soon as、since、till/utill、by the time、the moment、directly、the second、as long as
地点状语从句:where、wherever、anywhere、every-where
条件状语从句:if、unless(=if not)、supposing that、providing、as long as(只要)、in case、on condition that
原因状语从句:because、as、since for、now that、seeing that、in that、considering that
目的状语从句:so that、in order that、in case、for fear that
结果状语从句:so…that、such…that、so much…that、therefore、as a result
让步状语从句:though、although、as、even if、even though、whether…or、no matter…、whatever、while
though和although不能与but连用,但可以跟yet still连用
比较状语从句:as、than、not so much…as、more A than B等
more A than B 与其说是B 不如说是A
方式状语从句:as、as…so、as if、as though