状语从句精品课件.ppt

,状语从句,（二）,Step1.Revision引导时间状语从句的引导词常有：(1)when,while,as(2)before,since(3)till,until(4)every/eachtime,thefirsttime,themoment,theminute,theinstant(名词连词化）(5)assoonas,nosoonerthan,hardlywhen,2、地点状语从句:,通常由连词where和wherever等引导。,e.g.(1)Gobackwhereyoucamefrom.(2)Wherethereisawill,thereisaway.(3)Whereveryougo,youmustwritetoyourparents.(4)Youarefreetogowhereveryoulike.,注意：不要和where引导的定语从句相混淆e.g.(1)Youdbettermakeamarkwhereyouhaveanyquestions.(2)Youdbettermakeamarkattheplacewhereyouhaveanyquestions.,你最好在有问题的地方做个标记。,状语从句,定语从句,3、原因状语从句:,通常由连词：because,as,since,nowthat,等引导。,e.g.(1)Hedidntcomebecausehewasill.,(2)Sinceyouarehere,youmustdoit.,Youneedntgowithme,asyouarebusy.AsIwasafraid,Ihidmyself.,since：表示“既然”，语气比because弱。,Sinceyouarehere,youmustdoit.,as：表示“因为”语气比because轻，引导从句可放主句前也可放主句后。,Youneedntgowithme,asyouarebusy.AsIwasafraid,Ihidmyself.,nowthat意思与since相似，表示“既然”。,NowthatyouareinHighSchool,youwillprobablyspendmoreinreading.Nowthatalltheguestshavearrived,letshaveourdinner.,for也表示“因为”，但是并列连词，它连接的不是状语从句，语气比较强。For引导从句不说明主句发生的直接原因，只是提供一些补充说明，且不位于句首,Itmustbemorning,forthebirdsaresinging.,seeing(that)(鉴于)；considering(that)(考虑到)和inthat(因为),Seeingthattheweatherisbad,wellstayathome.Ilikethecity,butIlikethecountrybetterinthatIhavemorefriendsinthecountry.,4、目的状语从句:,通常由inorderthat,sothat,lest(以免，以防）,incase（以防、免得），forfearthat(以免）等引导：,Hegotupearlyinorderthathecouldcatchtheearlybus.Shemarriedhimsothatshemighttendandcomforthim.Iexplainedagainandagainincaseheshouldmisunderstandme.,lest，incase,forfearthat后面常用虚拟语气，也就是说其引导的状语从句常用“(should)+动词原形”。例如：Ihidthebooklest(=forfearthat)heshouldseeit.,inorderthat,sothat引导目的状语从句中谓语动词常含有may(might),can(could),will(would)等情态动词。,5、结果状语从句:,由sothat,sothat,suchthat,that引导：Itwasverycold,sothattheriverfroze.Thebookissowrittenthatitgivesaquitewrongideaofthefacts.Thereweresomanypeople(=suchalotofpeople)intheroomthatwecouldnotgetin.Hemadesuchanexcellentspeechthateveryoneadmiredhim.Whatwasthematterwithhimthathelookedsohappy?,注意：sothat既可引导目的状语从句，又可引导结果状语从句，其区别在于：引导结果状语从句时通常用逗号同主句分开引导目的状语从句中谓语动词常含有may(might),can(could),will(would)等情态动词。,Hemadeawrongdecision,sothathalfofhislifetimewaswasted.(结果状语从句)Theystartedearlysothattheymightarriveintime.(目的状语从句),6、条件状语从句:,由if,unless,aslongas(=solongas)(只要),incase(that)(如果，万一),suppose(that),supposing(that),given(that)(在的情况下,假定),grantedthat(就算),onconditionthat,providedthat,providingthat等引导：,例如：,IshallnotgotothecinemaunlessIfinishmyhomeworkbeforeeight.Youmaygoswimmingonconditionthatyoudontswimtoofarawayfromtheriverbank.Aslo