一、考点精要
【授之以渔】①从属连词引导的状语从句：since, once, while, as, before, after, until, suppose, however, in case 等。
②名词词组和副词引导的状语从句：the moment, the instant, the minute, the first time, each time, every time, immediately等。
③近几年以对时间、条件、让步和结果状语从句的考查最为频繁，重点考查的连词：when, before, unless, as long as, however等。
考点1. 条件状语从句
【巧点妙拨】
1.由if，unless，if only，once，so/as long as，supposing(that)(假设)，in case，so/as far as，on condition that，provided/providing that引导。
I won’t go unless I’m invited.除非我被邀请否则我不会去。
2.“祈使句+and/or/or else/otherwise+陈述句”的句型中，祈使句在意义上相当于条件状语从句。
Use your head, and you’ll find a way.动动脑子你就会想到办法。
