名词性从句含有从句的句子叫做主从复合句,简称复合句。根据从句在主句中所充当的不同成分,从句分为三种:①名词性从句(主语从句、表语从句、宾语从句);本讲主要介绍名词性从句②形容词性从句(定语从句);③副词性从句(状语从句)主语从句宾语从句表语从句同位语从句相当于一个名词成分一、基本结构:引导词+从句(陈述句语序)连词连接代词连接副词二、引导词:thatif/whetherwhowhomwhatwhichwhosewhenwherehowwhy不充当成分;无意义不充当成分;“是否”主语谁宾语谁主/宾什么,所…的主/宾那个/些定谁的状语缺什么补什么;不缺什么补that三、常见考点:1.从句的语序:2.宾语从句的时态3.that的省略问题4.if/whether5.what/that从句的语序所有从句都用________语序Ihavenoideawhen_____________.陈述句hewillcome宾语从句的时态1.主句是一般过去时,从句要用________________.HeaskedmewhetherI__________(see)hispen.过去的某种时态hadseen2.如果宾语从句表达的是客观事实、真理、自然现象、名言、谚语等时,主句即使使用了过去时,宾语从句仍然用一般现在时。例如:1).Hesaid(that)timeismoney.2).Ourteachertoldusthatlighttravelsmuchfasterthansound.3.主将从现、主祈从现、主情从现that的省略问题1.宾语从句的that通常可以省略多个宾语从句时,只有第一个that可以省略。Hetoldme_____hewouldcomeand______hewouldcomeontime.(that)2.引导表语从句、主语从句的that不可省略.Myideais_______weshouldsticktoourplan.that______theearthisroundistrue.thatThatif还是weather只能用whether的情况:1.引导主,表从句2.介词后的宾语从句3.句中有ornot4.放不定式前Idon’tknow___________togoortostay.Italldependson_______youhaveenoughtime.Wedon’tknow_______ornotshewasateacher.whetherwhetherwhetherwhat/thatHeisnotwhatheusedtobe.Thathewillcomeiscertain.(that不可省略)Ibelieve(that)theywillfinishtheworkintime.Whathesaidisveryimportanttous.that在引导名词性从句时,不在句子中做成分,不含疑问意义,也没有实际意义,只起连接作用,在句首时不可以省略。what在引导名词性从句时,既起连接作用,又在从句中做主语或宾语,在任何情况下都不能省略,它有具体意义,相当于all/everythingthat。Ithink__________hewillbebackinaweek.__________hesaidistrue.Ireallydon’tknow__________heisdoing.__________hewonthefirstprizemadehisclassmatesexcited.