名词性从句讲解课件.pptVIP

名词性从句制作吕明祥

一.相关概念1.名词：表示人或事物的名称的词叫名词。2.名词的句法作用：名词在句中主要作主语、宾语、表语和同位语。另外还可以作定语、状语。3.名词性从句：在英语的句子结构中，本来该由名词充当的主语、宾语、表语和同位语，由一个句子来充当，这个句子就叫名词性从句。4.名词性从句的种类：根据名词性从句在句子中所充当的不同成分，名词性从句可以分为主语从句、宾语从句、表语从句和同位语从句。

二.主语从句1.主语从句的连接词1).连接词:that,whether例:(1).Thathewillwiniscertain.(2).IthasbeenreportedthatsalesofbeefinChinawillincrease.(3).Whetherweshallraiseducksorgeeseremainstobedecided.(4).Whetherhe‘lljoinusinthediscussionisofgreatimportance.

2).连接代词:who,whom,whose,what,which,whoever,whatever,whichever例:(1).Itisclearwhoisafraidofhavingachangeinlandownership.(2).Whosebagitiscannotbetold.(3).WhatIndianeedsisalawtomakelandownershipfairer.(4).Itisnotyetdecidedwhichcashcropwillbeproducednextyear.(5).Whateverhesaidwasright.(6).Whoevergotheremustgetreadyby6o’clock.

3).连接副词:when,where,why,how,howmany,howmuchhowlong,howsoon,howoften例:(1).Whenwe’llstarttomorrowwillbetoldsoon.(2).Wherewecanbuyoxenissomethingweneedtofindout.(3).Whyhecamehereisnotknown.(4).Howwecanprotectthegrainfromdampneedstobediscussed.(5).Howmanypeoplediedfromstarvationthatyearwillneverbeknown.(6).Howoftenhe’llgotoseehisgrandmotherdependsonthetimehecanspare.

2.注意点1).主语从句一律用陈述句语序,即主语在前,谓语在后.例:正:Whenhewillcomeisnotknown.误:Whenwillhecomeisnotknown.2).连接词that在从句中无实际意义,但不能省略.例:正:Thathewillnotcometothemeetingthiseveningistrue.误:Hewillnotcometothemeetingthiseveningistrue.

3).whether可以引导主语从句,但if不能.4).whoever,whatever,whichever等词可以引导主语从句,但nomatterwho,nomatterwhat等不能.5).为避免主语冗长,句子头重脚轻,经常用it作形式主语,主语从句放在后面作真正的主语.例:Itiswellknown/reported/thought/said/…that…Itisclear/necessary/certain/true/doubtful/…that…Itisapity/ashame/anhonour/…that…Itdoesn’tmatterwhether…/Itseemsthat…Ithappensthat…

三.宾语从句1.宾语从句的引导词:宾语从句的连接词与引导主语从句的连接词相同.2.注意点1).宾语从句一律用陈述句的语序.2).引导宾语从句的连词that也无实际意义,多数情况下可以省略.3).whether和if都可以引导宾语从句但:(1).当whet