高考英语语法复习六 状语从句.doc

用心爱心专心122号编辑7高考英语语法复习六状语从句由从句担任的状语在句子中可修饰谓语（或其它动词）、形容词、副词或是整个句子它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。状语从句是一较大的语法项目也是近几年高考题中常见的一个重要试点。高考中已考查了时间、让步、地点、条件、目的等状语从句这些从句仍是今后高考热点应作充分准备。同时对方式状语从句也应引起重视。（一）时间状语从句表示时间的状语从句可由whenaswhilewheneverafterbeforetill(until)sinceonceassoonas(或themoment)bythetimenosooner…thanhardly(scarcely)…wheneverytime等引导。e.g.WhenIcameintotheofficetheteacherswerehavingameeting.Hestartedassoonashereceivedthenews.Onceyouseehimyouwillneverforgethim.NosoonerhadIgonetobedthanIwenttosleep.（二）原因状语从句原因状语从句是表示原因或理由的引导这类从句的最常用的连词是becausesinceasnowthat（既然）等for表示因果关系时（它引导的不是从句）为并列连词语气不如because强。e.g.Heisdisappointedbecausehedidn'tgettheposition.AsitisrainingIwillnotgoout.NowthatyoumentionitIdoremember.（三）地点状语从句引导地点状语从句的连词是where和wherever等。e.g.Sitwhereveryoulike.Makeamarkwhereyouhaveaquestion.（四）目的状语从句引导目的状语从句最常用的词（组）是sosothat（从句谓语常有情态动词）inorderthatincase（以防以免）等。e.g.Speakclearlysothattheymayunderstandyou.ShehasboughtthebookinorderthatshecouldfollowtheTVlessons.Heleftearlyincaseheshouldmissthetrain.（五）结果状语从句结果状语从句是表示事态结果的从句通常主句是原因从句是结果。由sothat（从句谓语一般没有情态动词）so…thatsuch…that等引导。e.g.Shewasillsothatshedidn’tattendthemeeting.Hewassoexcitedthathecouldnotsayaword.Sheissuchagoodteacherthateveryoneadmiresher.（六）条件状语从句条件状语从句分真实性（有可能实现的事情）与非真实性（条件与事实相反或者在说话者看来不大可能实现的事情）条件句。引导条件状语从句的词（组）主要有ifunlessso(as)longasonconditionthatso(as)farasifonly(=if)。注意：条件从句中的if不能用whether替换。e.g.Ifheisnotintheofficehemustbeoutforlunch.Youmayborrowthebooksolongasyoukeepitclean.SofarasIknow（据我所知）hewillbeawayforthreemonths.Youcangoswimmingonconditionthat(=if)youdon’tgotoofarawayfromtheriverbank.Ifhehadcomeafewminutesearlierhecouldhaveseenher.（七）让步状语从句让步状语从句可由althoughthoughasevenif(though)howeverw