1、 时 间:(1) 当……时侯when,（be about to /be doing + when…）while（延）as（随着,一边一边）(2) 一……就as soon as,the moment, the instantly, the minute, the second,immediately, directly, instantly,(3) time 短语 the first time,(4) before, since(5) not…until, until, till
3、 条竭惮蚕斗件if , unless(=if … not) , so (as )long as , in case , on condition that, suppose/ supposing, provided that
5、 目的 So that, in order that,for fear that, in case
7、 结果 so that, so … that … , such… that…
