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主语从句讲解和练习题

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高考英语主语从句

定义：用作主语的从句叫主语从句，它是名词性从句之一。主语从句的时态：不受主句的时态影响和限制。

引导主语从句的连接词有：

从属连词:that,whether；

连接代词:who(whoever),whom,whose,what(whatever)和which(whichever)；

连接副词:when,where,how和why。

连接词：

1.从属连词：that，whether

1）that引导主语从句只起引导作用，在主语从句中不充当任何成分，that本身无实际意义，但不能省略。

2）whether意为“是否”，放在句首句末皆可。由whether引导的名词从句做主语，表语，介词宾语，

同位语时！不可用if代替。

a.Thatpricewillgoupiscertain.

b.Whethertheywouldsupportuswasaproblem.他们是否会支持我们还是一个问题。

2.连接代词who，what，which,whatever,whichever,whoever(Who,whom,which,what可以和

ever构成合成词，和what一样引导从句，ever起到强调作用。此类主语从句不能用形式主语it引导，它

们在句子中担任成分，不能省略，语序为陈述语序，既有疑问含义,又起连接作用,同时在从句中充当各种

成分。

Whichsidewillwinisnotclear.Whoeverbreaksthelawwillbepunished.

Whateverhedidisright.Whokilledthescientistremainsaquestion.

1）What和that引导的主语从句的区别：that只起引导作用，不充当任何成分，没有意思。What不仅

起引导作用，还要充当一定成分(主语、宾语或表语)，意思是：“什么”。

Whatweneedismoney.Thathewillcomeiscertain.

2）whatever/whoever的用法（~ever=nomatter~---让步状语从句中）

whatever/whoever可以引导主语从句,并在句中作主语、宾语、表语等,不含疑问意义。whatever相当

于anythingthat;whoever相当于anyonewho。例如:

Whoever(Anyonewho)wantstoenterintothisschoolmusttaketheexam.

Whatever(Anythingthat)shedidwasright.

3.连接副词when，where，how，why等。既有疑问含义,又起连接作用,同时在从句中充当各种成分。

Howthishappenedisnotcleartoanyone.Whenhewillbebackdependsontheweather.

Whenwe’llstarttomorrowwillbetoldsoon.Wherethetestwillbegivenisnotyetdecided.

4.主语从句后置：为了避免主语冗长,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:Thatweshallbelateiscertain.--It’scertainthatweshallbelate.

1）用it作形式主语的结构

A.It+be+形容词+that从句

(obvious,true,surprising,good,wonderful,funny,possible,likely,certain,probable,etc.)如：

Itiscertainthatshewilldowellinherexam.

B.It+be+名词词组+that从句(anhonour,afact,apity,etc）如：

Itisapity/shamethat...遗憾的是……Itisasurprisethat…令人惊奇的是…

Itisafactthat……是事实Itiscommonknowledgethat……是常识

It’sapitythatwecan’tgo.

C.It+be+过去分词+that从句(said,reported,thought,expected,decided,announced,etc。）

如：ItissaidthatMr.GreenhasarrivedinBeijing.

D.It+不及物动词或短语+that从句(seem，happen,doesn’tmatter,turnout）。如：

IthappenedthatIwasoutthatday.Itdoesn’tmatterwhethershewillcomeornot.

2)对于以连接代词(副词)引导的主语从句,可以使用形式主语代主语从句,也可直接在句首使用主语从句：

a.Whethertheywouldsupportuswasaproblem.b.Itwasaproblemwhethertheywouldsupportus.

3）主语从句中的否定前移

当用it作形式主语,而将主语从句放在句尾时,主语从句中的否定词常要前移至主句中。例如:

Itdoesn’tseemthattheyarefromthesameuniversity.

Itdoesn’tappearthatwe’llhaveasunnydaytomorrow.

5.注意：

1）主语从句在句首时，必须由连接词引导，不能省略这些连接词。

误：Theyshouldlikeeachotherisnatural.正：Thattheyshouldlikeeachotherisnatural.

2）在It+be+suggested/advised/ordered/requested/insisted/required中,that从句的谓语也应该用

“should+动词原形”的形式,should有时可以省略。主语从句中用陈述语序,后面的谓语动词用第三人称单

数.Itissuggestedthatwe(should)dotheexperimentasecondtime.

3).用于Itisimportant/natural/necessary/impossiblethat...句型中,主语从句应使用虚拟语气,用

“should+动词原形”的形式,should有时可以省略。

Itisimportantandnecessarythatwe(should)keepthebalanceofnature.

4）“what”引导主语从句时，谓语动词：常与其后的名词作表语一致，且根据句子的语境而定。

eg：Whatyouleftareonlyseveraloldbooks.Whatyousaidisofgreatimportance.

5）在Itisfunny,strange,surprising,apity,ashame,nowonder,etc.+that从句中，有时谓语部分用

should+动词原形，来表达说话者的感情色彩，此时should也可省略。

6）语气

"Itbe+adj./n.+that-clause"与强调句型均有Itbe...that...之类的语言标志,但不同的是:①前者中的that从

句是主语从句.若删掉其中的Itbe和that,则剩余部分不论结构还是语意都不能成为一个句子;但若将后者中

的Itbe和that去掉,则剩余部分的结构和语意仍能构成一个完整的句子.②强调句型译为汉语时可加上"正

是……"或"就是……"之类的字眼,而主语从句则不可以.

ItissurprisingthatMaryshouldhavewonfirstplace.令人惊奇的是玛莉竟然获得了第一名.

ItisMarythathaswonfirstplace.正是玛莉得了第一名.【强调】

6..主语从句的规律：

例1.Whenwillhecomeisnotknown.正：Whenhewillcomeisnotknown.

规律一、主语从句一律用陈述语序，即主语在前，谓语在后。

例2.Hewillnotcometothemeetingthiseveningistrue.

正：Thathewillnotcometothemeetingthiseveningistrue.

规律二、连词that在从句中无实际意义，但不能省略。

例3.Ifthemeetingwillbeputoffhasnotbeendecidedyet.

正：Whetherthemeetingwillbeputoffhasnotbeendecidedyet.

规律三、whether可以引导主语从句，放在句首，但if不能

例4.Thatwhetherhewillhelpothersisafact.

正：Thathewillhelpothersisafact.

规律四、主语从句中的连词不能重叠使用。

例5.Whenhewillcomeareapuzzle.正：Whenhewillcomeisapuzzle.

规律五、含主语从句的主句谓语动词多用单数第三人称形式。

1.Whatheneedsisthatbook.2.Whatheneedsaresomebooks.

规律六、what引导的主语从句，可根据表语决定主句动词的单复数形式。

规律七、主语从句为了避免头重脚轻现象，用it做形式主语，而把从句放在后面。

Thattheearthturnsaroundthesunisknowntoall.

Itisknowntoallthattheearthturnsaroundthesun.1.what/thata.____hesaidatthemeetingsurprisedus.b._____heturnedupatthemeeting

surprisedus.

2.if/whether_______yougoorstayathomewon’tmakeanydifferences.

3.Whatapity_____is_____youdidn’tarrivebydaylight.

A.there,becauseB.it,thatC.he,whenD.that,for

4.nomatterhow/who/what/where/when

Wearereadytodo______thecountrywantsustodo.

A.whatB.whichC.nomatterwhatD.whatever

5.Itisapitythatyou(should)misssuchagoodchance.

___hemadeanimportantspeechatthemeetingwastrue.

A.ThatB.WhyC.WhatD.How

6.___we’llgocampingtomorrowdependsontheweather.

AIfBWhetherCThatDWhere

7.___isknowntousallisthatAmericaisadevelopedcountry.

AWhichBAsCWhatDIt

8.It’sknowntousall___aformofenergy.

A.waterisB.thatwaterisC.iswaterD.thatwaterto

9.Itworriedherabit___herhairwasturninggray.

合集下载

高中英语名词性从句系列讲解和练习(主语从句)

高中英语名词性从句系列讲解和练习(主语从句)

练习（主语从句）

一、.关联词分类和基本句型：

(1)从属连词that。如：That they were indeed sisters was clear from the facial resemblance between

them.

很明显，她们确是亲姐妹，她们的脸型很相似。

______ we need more equipment _____ quite obvious. 我们需要更多的设备，这是很明显的。

(2)从属连词whether。如：

Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。

______ he will join us won't _____ too much difference.他是否和我们一起干无所谓。

(3)连接代词who, whom, whose, what, which, whoever, whatever, whichever

连接副词 where, when, how, why。如：

What you need is more practice. 你需要的是更多的练习。

Whoever wants it may have it. 谁要都可以给他。

_____she did ____ not yet known. 她干了什么尚不清楚。

_____ this happened is not _____ to anyone. 这事怎样发生的，谁也不清楚。

______ comes _____ welcome. 不论谁来都欢迎。

二、主语从句后置：

主语从句能用it作形式上的主语。常以it作形式主语的句型有：

A.It+be+形容词(obvious, true, natural, surprising, good, wonderful, funny, possible, likely,

certain, probable, etc.)+that从句。如：

主语从句讲解及其练习

主语从句讲解及其练习

主语从句

一、主语从句的连词分三类

（1）从属连词引导的主语从句 （that whether if）

that引导的主语从句:引导词that无含义/在句中不做成分/不可以省。That 引导主语从句通常用it 作形式主语。

例如：That you will win the medal seems unlikely.

That she survived the accident is a miracle.

whether 引导的主语从句: whether有含义(是否)/在句中不做成分/不可以省。

注意：引导主语从句，不能用if不能在开头，只能用whether。

Whether we will hold a party in the open air tomorrow depends on the weather.

Whether she is coming or not doesn’t matter too much.

（2） 用连接代词引导的主语从句

在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中，其连接代词在句中起名词性作用，担当一定成分.

例如：What you need is more practice.

Whatever we do is to serve the people.

注：whatever / whoever的功用

whatever, whoever在主语从句中不含疑问意义。它引导主语从句，并在从句中作主语、宾语、表语等。

whatever = anything that; whoever = anyone who。要注意和whatever, whoever引导的让步状语从句的区别。

如：Whoever breaks the law should be punished. （主语从句）

主语从句讲解与练习

主语从句讲解与练习

主语从句

一、概述：在句子中起名词作用的各种从句统称为名词性从句。根据它们在句中的语法作用，这类从句又可分为主语从句、同位语从句、表语从句和宾语从句。

二.主语从句主要有三类：

（1） 由连词that引导的主语从句:引导词that无含义,在句中不做成分,不可以省。

例如：That you will win the medal seems unlikely.

你想获得奖牌看起来是不可能的。

That you are so indifferent bothers me.

你如此冷淡使我很烦恼。

That she survived the accident is a miracle.

她在事故中幸免于难简直是奇迹。

（2） 用连词 whether 引导的主语从句:whether有含义(是否),在句中不做成分,不可以省。

例如：Whether she is coming or not doesn’t matter too much.

她来不来都无关紧要。

（3） 用连接代词引导的主语从句(在由连接代词who, whose, whom, which, what, whoever,

whomever, whichever, whatever引导的名词性从句中，其连接代词在句中起名词性作用，担当一定成分).

例如：What you need is more practice.

你所需要的是更多的训练。

What I want to know is this. 我想知道的就是这事。

Whatever we do is to serve the people.

我们无论做什么都是为人民服务。

（4）用连接副词when, where, why, how引导的名词性从句(其连接副词有含义,在句中作状语。)

eg:Where we should leave it is a problem.

When they will come hasn’t been made pubic.

定语从句与宾语从句专项练习

定语从句与宾语从句专项练习

定语从句+宾语从句练习

1.The place _______interested me most was the Children's Palace.

A. Which B. where C. what D. in which

2.Do you know the man _______?

A. whom I spoke B. to who spoke C. I spoke to D. that I spoke

3.This is the hotel _______last month.

A. which they stayed B. at that they stayed

C. where they stayed at D. where they stayed

4.Do you know the year ______the Chinese Communist Party was founded?

A. which B. that C. when D. on which

5.That is the day ______I'll never forget.

A. which B. on which C. in which D. when

6.The factory ______we'll visit next week is not far from here.

A. where B. to which C. which D. in which

7.Great changes have taken place since then in the factory _______we are working.

A. where B. that C. which D. there