英语专题（六）状 语 从 句天津 王定民状语从句在句中相当于副词做状语, 又叫副词性从句
状语从句分为时间状语从句、条件状语从句、地点状语从句、原因状语从句、目的状语从句、让步状语从句、结果状语从句和 比较状语从句
掌握状语从句应当引导词入手，注意引导词的词义,引导状语从句的引导词都有词思,所以,了解引导词的意思尤为重要
引导词按意义分为九类:1) 时间 when , as , while , till , until , before , after , since 2) 地点 where 3) 原因 because , as , since , now that 4) 条件 if , unless , once
so (as) long as
in case 5) 让步 though , whatever (--ever ) as , even though , even if 6) 目的 so that , in order that 7) 结果 so
that 8) 比较 than , as
as 9) 方式 as , as if 例如: 1． I fell asleep when ( as , while ) he was doing his exercises
他正作练习时我睡着了
（时间状语从句）2． When he arrived in Shanghai , his mother met him at the station
他到上海时，他妈妈到车站接他
（时间状语从句）3． She always sings as she walks
她总是一边走一边唱
（ 时间状语从句）4．I waited until he had finished his work
我等到他做完活
（时间状语从句）5．It was not long
