资源描述:
《名词性从句包括主语从句.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、名词性从句包括主语从句、表语从句、宾语从句、同位语从句,其关联词有连接词that,if,whether;疑问代词who,what,which和疑问副词when,where,how,why等。高三语法复习名词性从句1.主语从句主语从句在句中作主语。它可以放在主句谓语动词之前,但多数情况由it作形式主语,而把主语从句放在主语之后。例如:Whodidthatisknowntoall.谁做的那件事,众所周知。It’sreportedthatnoonewaskilledintheearthquake.据报道地震中
2、没有人死亡。Subjectclause(主语从句)主语从句是在复合句中充当主语的从句,通常放在主句谓语动词之前或由形式主语it代替,而本身放在句子末尾。引导主语从句的连接词:连词:whether,that连接代词:who,whom,whose,what,which,etc.连接副词:when,where,why,how,etc.主语从句可放句首,此时连接词that一般不省略。主语从句也可用于Itis…that…句型。Whether引导主语从句意为“是否”,这时通常不用if.Thatweneedmoree
3、quipmentisobvious.or:Itisobviousthatweneedmoreequipment.Whetherwecanattendthepartyisunknown.or:Itisunknownwhetherwecanattendtheparty.It用作型式主语的句子常出现于下列句型:1)Itis+adj.+that…(eg.natural/strangeetc.)Itislikelythattheirgroupwillgetaheadofus.2)Itis+n.(eg.afact/
4、anhonor/commonknowledge)+that…Itisnotyourfaultthatthishashappened.3)Itis+said/reported/known/believed/thought/proved+that…Itissaidthateveryoneinhisclasstakesanactivepartinsports.4)Itseemsthat…似乎…….Ithappensthat…碰巧…Ithappensthattheprettiestbirdsarethewors
5、tsingers.(3)Ithappensthat…,Itoccurstosb.that…结构中的主语从句不可提前。例如:Itoccurredtohimthathefailedintheexamination.(right)Thathefailedintheexaminationoccurredtohim.(wrong)4)Itdoesn’tmatterhow/whether…结构中的主语从句不可提前。例如Itdoesn’tmatterwhetherheiswrongornot.(right)Wheth
6、erheiswrongornotdoesn’tmatter.(wrong)(5)含主语从句的复合句是疑问句时,主语从句不可提前。例如:Isitlikelythatitwillrainintheevening?(right)Isthatitwillrainintheeveninglikely?(wrong)名词性从句的主谓一致主语是名词性从句(常用what,whatever,when,where,why,how,that,whether等引导放在句首)时,动词通常用单数形式。例如:1.WhatIammos
7、tinterestedinisAmericanmovies.我最感兴趣的是美国电影。2.Whateverhesaysisofnoimportance.无论他说什么都不重要。3.Whoeversaysthatiswrong.无论谁说这话都不对。4.Thathewillcomeiscertain.他肯定会来。5.WhyheislateforclassismorethanIcantell.为什么他上课迟到,我也说不上来。但在下面的句子中谓语动词要用复数形式,因为主语从句中的动词是复数,所以主语从句应当作复数看
8、待。例如:6.Whoaregoingtoattendthemeetinghavebeendecidedbythemanager.哪些人去参加会议,已由经理做出了决定。Objectclause(宾语从句)在一个句子中,不是由一个词组,而是由一个句子充当的宾语,这个句子叫做宾语从句。其作用相当于一个名词词组。引导宾语从句的连接词:连词:whether,if,that连接代词:who,whom,whose,what,which,etc.连接副词: