最新邢台一中高中英语语法讲解—名词性从句

发布时间:2023-03-24 19:56:48   来源:文档文库   
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邢台一中高中英语语法讲解
名词性从句
【作者】贾朔
【编辑】CrazyUrus【日期】200910311.从句的分类
形容词性从句,即定语从句状语从句(分9种)从句主语从句
名词性从句宾语从句
表语从句同位语从句2.说明:
①名词性从句的功能相当于名词,根据其在句中充当的成份,有不同的叫法。②引导名词性从句的词语主要有:
a.从属连词that,无词义,不作句子成分;
b.从属连词ifwhether是否)有词义,但不作句子成分;
c.从属连词asif=asthough似乎、好像)有词义,但不作句子成分;
d.连接代词whowhoeverwhatwhateverwhomwhomeverwhichwhicheverhowmuchhowmany有词义,作成分;
e.连接副词whenwheneverwherewhereverwhyhowhoweverhowoftenhowsoonhowfarhowlong作句子成分。③在名词性从句中,要用陈述语序。
【例】1.Idon’tknowwheredoeshelive.(falseIdon’tknowwherehelives.(true我不知道他住在哪。
2.Whatlifeinthefuturewillbelikeisunknown.(trueWhatwilllifeinthefuturebeisunknown.(false
④不可用nomatterwhonomatterwhat等引导名词性从句,只能引导状语从句。一、主语从句
1.定义:若处在主语的位置上是个句子,那么这个句子就叫做主语从句。2.注意事项:
a.在主语从句中,任何引导词都不可以省去。【例】Thatherhairisturninggreyworriesher.b.在主语从句中,不用if,用whether
【例】Whetherhewillcomeornotisnotclear.(true精品文档

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Ifhewillornotisnotclear.(falsec.主语从句作主语时,谓语动词用单数。若谓语动词为两个或两个以上时,则用复数。【例】1.Wherewewillhaveaholidayhasn’tbeendecided.
2.Wherewe’llgopicnicingandhowwewillgoaren’tclear.d.主语从句作主语时,习惯上用it作形式主语,而将主语从句后置。但由whatwhateverwhoever引导的主语从句,没有这个习惯。
【例】1.It’sveryclearthattheboywasseriouslyill.形式主语真正的主语
2.It’suncertainwhetherwe’llhaveameetingtoday.
3.Ithasn'tbeendecidedwhentheywillleavefor(前往NewYork.
e.it作形式主语,把主语从句后置的常见句型有:
It'scertain/uncertainthat…肯定…/不确定……It'slikely/possible/probablethat有可能……
It'sapity/shamethat很可惜/很遗憾……It'snosurprisethat毫不奇怪/很正常……
It'ssaid/reported/thought/believethat据说/据报道/大家认为/人们相信……Ithappensthat碰巧……
f.that引导的主语从句出现在疑问句中时,必须用it做形式主语。【例】1.Isittruethatthescientistwillgiveusalecture?2.Doesitmattermuchthattheywon’tcome?g.主语从句的虚拟语气,常见句型如下:
It'sapity/shame/nowonder+that+主语+(should+v.
It'srequested/suggested/desired+that+主语+(should+v.It'snecessary/strange/important+that+主语+(should+v.二、表语从句
1.定义:若处在表语的位置上是个句子,那么这个句子就叫做表语从句。2.注意事项:
a.引导表语从句的任何词都不可以省(在口语中that偶尔可以省去)【例】Thetruthis(thatIhaveneverbeenthere.b.在表语从句中,不用if,用whetherc.asif=asthough)可以引导表语从句。【例】Itlooksasifit’sgoingtorain.
Thegirlseemsasthoughshehascried.d.有争议的because:有的语法家叫之表语从句,有的则称之为强调句的省略。【例】—Whywashelate?
Itwasbecausehisbikewasbroken.
e.reason不能和because连用,要用that代替。【例】Thereasonwhyhedidn’tcomewasthathewasill.精品文档

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