文档介绍：副词性从句(状语从句)!从句分三类:名词性从句,形容词性从句,副词性从句。副词性从句就是状语从句,家庭成员最多。高考状语从句考查重点从属连词的选择;同类状语从句中连词的辨析。状语从句在主从复合句中作状语修饰主句中的动词,形容词或副词,按意义可分为时间、地点、原因、目的、结果、条件、行为方式、比较、让步等九种状语从句。一般位于句首或者句末,位于句首,用逗号和主句格开。引导状语从句的关联词是从属连词状语类别从属连词时间when,whenever,as,while,before,after,till(until),since,eversince,once,assoonas,soonafter,themoment,theminute,immediately等,eachtime,everytime,lasttime,bythetimenosooner…than,hardly…when地点where,wherever原因because,as,since,consideringthat,nowthat目的sothat,inorderthat,forfearthat,incase结果/程度sothat,so…that,such…that,that,withtheresultthat条件if,unless,as(so)longas,as(far)as,incase,supposethat,onconditionthat比较as…as,notas(so)…as,than让步though,although,evenif,eventhough,as,however,whatever,whenever,wherever,whoever,whether…or,nomatterwho/what/which/where/when/whether/how行为方式as,asif,asthough考点(1)when,as,while引导时间状语从句When既可引导持续动作,又可引导短暂动作。它表示主句动作和从句动作同时发生,或从句动作在主句动作之前。WhenIwasaboy,IusedtogototheseashoreonSundays.(同时)Whenthelessonwasover,webeganourwriting.(从句动作在前)while指“在某一时间里”,“在…期间”,从句动作必须是持续性;也强调主句和从句动作的同时发生,往往侧重主从句动作的对比。WhilehewasinLondon,hestudiedmusic. as常和when,while通用,但侧重主句和从句的动作同时发生,说明两种正在发展和变化的情况。Hehurriedhome,、时间状语从句______heleftschoolatfourteen,,,as,while表示“在…一段时间里”,主从句的动作同时发生时,可以换用。如:While(When或As)wewerediscussing,,若主句的主语和从句的主语一致的时候,可以用when/while+现在分词表示。____ayoungman,*when可表示“如果”。如:Don’,意思分别是“就在这时”,“然而”。如: