高考英语状语从句.doc

语法复习---状语从句语法复习---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when,as,while,whenever,after,before,till(until),since,once,assoonas(或themoment),bythetime,nosooner…than,hardly(scarcely)…when,everytime等引导。e.g.WhenIcameintotheoffice,theteacherswerehavingameeting.Hestartedassoonashereceivedthenews.Onceyouseehim,youwillneverforgethim.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because,since,as,nowthat（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.Asitisraining,Iwillnotgoout.Nowthatyoumentionit,Idoremember.（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so,sothat（从句谓语常有情态动词）,inorderthat,incase（以防，以免）等。e.g.Speakclearly,sothattheymayunderstandyou.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…that,such…that等引导。e.g.Shewasill,sothatshedidn’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if,unless,so(as)longas,onconditionthat,so(as)faras,ifonly(=if)。注意：条件从句中的if不能用whether替换。e.g.Ifheisnotintheoffice,hemustbeoutforlunch.Youmayborrowthebooksolongasyoukeepitclean.SofarasIknow（据我所知）,hewillbeawayforthreemonths.Youcangoswimmingonconditionthat(=if)youdon’tgotoofarawayfromtheriverbank.Ifhehadcomeafewminutesearlier,hecouldhaveseenher.（七）让步状语从句让步状语从句可由although,though,as,evenif(though),however,whatever,whether…or,nomatterwho(when,what,…)等引导。注意：as引导的让步状语从句一般是倒装的。e.g.Thoughheisachild,heknowsalot.Childasheis,heknowsalot.Whatever(=Nomatterwhat)yousay,I’llneverchangemymind.（八）方式状语从句方式状语从句常由as,asif(though),theway,ratherthan等引导。e.g.Youmustdotheexerc