1、从句类型 常用连接词时间状语从句 when, before, since, while, as, until, as soon as, whenever, every time, each time, the first time, the next time, the moment, immediately, once, directly, the instant(一就), the minute条件状语从句 if, unless, provided that 假如， providing that, as long as 只要so long as 只要， only if， whetheror，
2、in case 以免,on condition (that)若是， assuming (that) 假设,suppose（that）假设， supposing that目的状语从句 in order that, so that, so that, in case, lest(以免), for fear that（以免）结果状语从句 so that, sothat, suchthat原因状语从句 as, because, since, in that, the extent that, seeing that, now(that)让步状语从句 although, though, as, even
3、 though, even if, much as(虽然很)，whereas （鉴于） ，despite， except， that， while(虽然) ， in spite of , considering(that),no matter+wh, wh-ever地点状语从句 where, whevever, everywhere, anywhere方式状语从句 as, as though, as if , like, just, as, such as, the way, in a way, (in) the way thatthe way in which, (in) the same way比较状语从句 as+形容词+as, as+副词+as， not so/asas, 形容词或副词的比较级+than,morethan, lessthan, the morethe more
