名词性从句一、定义在复合句中起名词作用的句子叫名词性从句(NounClauses)
名词性从句的功能相当于名词词组,它在复合句中能担任主语、宾语、表语、同位语、介词宾语等,因此根据它在句中不同的语法功能,名词性从句又可分别称为主语从句(theSubjectClause)、宾语从句(theObjectClause)、表语从句(thePredicativeClause)和同位语从句(theAppositiveClause)
二、引导名词性从句的连接词引导名词性从句的连接词可分为三类:1
从属连词:that,whether/if,asif2
连接代词:what,which,who,whom,whose3
连接副词:when,where,why,how具体用法见下表:引导词用法例句从属连词that无词义,在从句中不担任句子成分,有时可省略
主语从句ItisimportantthatweshouldlearnEnglishwell
宾语从句Hetoldus(that)hefeltill
Thereasonliesinthatsheworksharderthantheothersdo
表语从句Thefactisthatwehavelostthegame
同位语从句Thenewsthatwewonthegameisexciting
whether/ifasifif/whether,asif虽有词义,但在从句中不作句子成分
主语从句Whetherhewillaccepttheinvitationremainsasecret
宾语从句Attitudedetermineswhether/ifpeoplearesuccessfulandabletoenjoylife
Everythingdependsonwhetherwehaveenoughmoney
表语从句Itlooksasifitisgo