状语从句
1、概述
状语从句主要用来修饰主句或主句的谓语。一般可分为九大类，分别表示时间、地点、原因、目的、结果、条件、让步、比较和方式。
2、状语从句分类及常用连词：
类 别 连 词
时间状语从句 when, whenever, while, as, before, after, since, till, once, as soon as,etc.
地点状语从句 where, wherever
原因状语从句 because, since, as, for, now that, etc.
目的状语从句 in order that, so that, that, etc.
结果状语从句 so…that, so that, such…that, that, etc.
条件状语从句 if, unless, as (so) long as, etc.
让步状语从句 though, although, even if, even though, however, whatever, as,etc.
比较状语从句 as…as, so…as, than, etc.
方式状语从句 as, as if, as though, etc.
3、状语从句的句法功能及考点
1)时间状语从句
常用引导词：when, as, while, as soon as, while, before, after, since , till, until
特殊引导词：the minute, the moment, the second, every time, the day，the instant, immediately , directly, no sooner … than, hardly …when, scarcely … when
I didn’t realize how special my mother was until I became an adult.
直到我长大成人后才认识到我母亲是多么的与众不同。
While John was watching TV, his wife was cooking.
当约翰在看电视的时候，他妻子在煮饭。
The children ran away from the orchard (果园) the moment they saw the guard.
孩子一看到守卫立刻从果园里跑了。
No sooner had I arrived home than it began to rain.