unit 4名词性从句

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什么是补语

补语就是用来述补结构中补充说明述语的结果、程度、趋向、可能、状态、数量,目的等成分。补语与述语之间是补充与被补充,说明与被说明的关系。英语补语的作用对象是主语和宾语,具有鲜明的定语性描写或限制性功能,在句法上是不可或缺的。补语是起补充说明作用的成份。最常见的是宾语补足语。名词、形容词、副词、不定式、现在分词、过去分词都可以在句子中作宾补。

什么是定语

定语是用来修饰、限定、说明名词或代词的品质与特征的。主要有形容词,此外还有名词、代词、数词、介词短语、动词不定式(短语)、分词、定语从句等相当于形容词的词、短语或句子都可以作定语。

定语的位置一般有两种:用在所修饰词之前的叫前置定语,用在所修饰词之后的叫后置定语。一般不定代词、形容词、名词、数词、量词、形容性代词、冠词等作为前置定语,而过去分词、不定式、形容词短语、介词短语、定语从句、同位语从句等-般作为后置定语。

定语的具体表现

一般情况下, 修饰名词或代词的词多放在被修饰词之前,但有以下几种情况,需要放在之后,称之为后置定语。

1.形容词作定语修饰不定代词something, anything, nothing等时, 必须放在不定代词之后。

(1)| have something important to tell you.我有一-些重要的事情要告诉你。

(2)Can you see anything unusual in the picture.你能在这幅画中看出不寻常的东西吗?

2.介词短语作定语修饰名词或代词时,必须后置。常见的有表示所属的of短语,表示伴随状态的with,表示方位或穿戴的in短语等。

(1)The girl in the red hat is my younger sister.戴红帽子的女孩是我妹妹。

(2)China is a great country with a long history.中国是一-个历史悠久的伟大的国家。

(3)She is only a girl of ten years old.她只不过是个十岁的女孩儿

(4)The picture on the right is more beautiful.右边的画更漂亮。

3.副词here, there, home,below等 作定语修饰名词时,须放在名词的后面。

(1 )People here like to drink tea.这里的人们喜欢喝茶。

(2)0n the way home a big boy stopped him.在回家的途中,一个大个子男孩拦住了他。

(3)Please answer the questions below.请回答以下问题。

4.副词短语作定语时须后置。

You'd better ask the policeman over there.你最好问问那边的那个警察。

5.表示长、宽、高某某等度量的形容词修饰名词时,须后置。

This desk is two metres long.这张课桌长两米。

6.动词不定式及动词不定式短语修饰名词作定语,应置于被修饰的词之后。

(1)| have a lot of work to do today.今天我又许多工作要做。

(2)It's time to get up now.现在该起床了。

(3)Would you like something to eat?你想吃点东西吗?

7.现在分词短语作定语时,须放在被修饰的词之后。

Do you know the boy riding the bike?你认识那个骑自行车的男孩吗?

8.过去分词短语作定语时须后置。

The Greens have a daughter called Kate.格林夫妇有个叫凯特的女儿。

宾补的具体表现

1.宾补跟在宾语后

(1)| find learning English difficult.(difficult是形容词做宾补)

(2)| saw the kite up and down.(up和down是副词做宾补)

(3)Tom made the girl cry.(cry是省略不定式符号to的动词不定式做宾补)

2.什么动词后可有宾语补足语

(1)表示心理状态的动词: consider,think,believe,discover,find,judge,suppose等。这类动词后的不定式通常是“to be+形容词或名词”结构,think,consider,find后的to be常可省略。

We consider him(to be)a good teacher.我们认为他是一个好老师。

He proved that theory(to be)very important.她证明那个理论是很重要的。

(2)表示情感状态的动词: love,like,prefer,hate,want,wish等。

l'd prefer you to leave him alone.我希望你不要打扰他。

I don't want there to be any trouble.我不想有任何麻烦。

主语补足语

主语+动词+形容词(双谓语)接在动词之后对主语起着解释或描述作用的成分,叫作主补。

形容词作主补

They married young.他们结婚时还年轻。He died happy.

他怀着幸福的心情死去。

ed分词作主补

He came in drunk.

他走进来的时候醉醺醺的。

名词作主补

He died a poor man.他死时很穷。

He died a millionaire.

他死的时候是个百万富翁。

表语(又叫作主补)

Africa is a big continent.

非洲是个大洲。

表语(又叫作主补)

That remains a puzzle to me.这对我还是个难题。

What's your fax number?你的传真号是多少?

I feel much better today.我今天感觉好多了。

由宾补变成主补

改为被动语态之后,原来的宾补就变成了主补。

如果主动句是“主语一动词一宾语一宾补”(SVOC)的结构,变为被动句时,原来的宾语变做主语,原来的宾补变成主补。

例如:

They named the child Tom.他们给孩子命名为汤姆。

>>> The child was named Tom.那孩子被命名为汤姆。

They painted the wall blue.他们把墙壁漆成蓝色。

>>> The wall was painted blue.墙壁被漆成蓝色。

宾语补足语,(以下简称宾补)顾名思义,是对宾语的补充,使得句子的内容更完整更充足。句子中是否有宾补,是由谓语动词决定的。有些动词不但要求有宾语,而且要求有宾补,如果丢掉宾补,就不成为句子,或意思走样。宾补- -般跟在宾语之后。请看下面的例句,并注意观察:哪些词或词组充当了宾补,把宾补去掉行不行:

1. We all call him Jack.我们大家都称他杰克。Jack是宾补,用来说明him。名词充当宾补。

2. He made me angry.他使得我很生气。angry是宾补,用来说明me,形容词angry作宾补。

3. Put your book down.把你的书放下。down是宾补,用来说明your book。副词充当宾补。

2. He made me angry.他使得我很生气。angry是宾补,用来说明me,形容词充当宾补。

3. Put your book down.把你的书放下。down是宾补,用来说明your book。副词充当宾补。

4. Put your book into your schoolbag.把你的书放到书包里。into your school bag是宾补,用来说明your book。介词短语充当宾补。

5. Iwill help you to learn English.我将帮助你学英语。to learn English是宾补,用来说明you。动词不定式短语充当宾补。

主语补足语,(以下简称主补)顾名思义,是对主语的补充,使得句子更加完整。请看下面的例句,并注意观察谓语动词的语态:

1.HewascalledJack.他曾被人称为杰克。Jack是主补。

2. I was made angry.我被人气坏了。angry是主补。

3. The book was put there.那本书曾被放在那里。there 是主补。

4. The book was thrown into a dustbin.那本书曾被扔进垃圾箱。into a dustben是主补。

5. The boy was made to work hard 10 hours a day.那男孩曾被迫一天干10小时的重活。to work hard是主补。

名词性从句

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主语从句:简单地说就是一个句子是主语。引导主语从句的关联词有从属连词、疑问代词、疑问副词、缩合连接代词、缩合连接副词等。例句:What I say is right.我说的都是对的。如果是动词作主语的话要加上to或者-ing。

(1)从属连词引导的主语从句 (that whether if)

that弓|导的主语从句:弓|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。

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例如: That you will win the medal seemsunlikely.

That she survived the accident is amiracle.

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

注意:引导主语从句,不能用if不能在开头,只能用whether。

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

(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弓|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 bepunished. (主语从句)

( =Anyone who breaks the law should……)

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

( = Anyone who breaks the law shouldbe punished. )

Whoever breaks the law, he should bepunished. (让步 状语从句)

( = No matter who breaks the law, heshould be punished. )

(3)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。)

例如:Where we should leave it is aproblem.

When they will come hasn't been made pubic.

三、it作形式主语的主语从句

有时为了考虑句子平衡,通常在主语从句处使用形式主语it,而将真正的主语从句移至句末。这分四种情况:

(1)对于以连词that引导的主语从句,通常用形式主语it替代主语从句:

Itis +名词+从句

It is a fact that...事实.... It is good

news that ... ...是好消息; It is a questionthat .. ....是个问题; It is common

knowledge that .. ....是常识

类似的名词还有: a pity; a wonder; agood thing; no wonder; surprise等 。

It is a mystery to me how it all happened.

It is common knowledge that the whale isnot a fish.

It is no surprise that Bob should have wonthe game.

It is +形容词+从句

It is necessary that .. F# '... It is clearthat ... Ei.... It is likely that ... iEPJ.... It is important that .. E #éJE... . ..类似的形容词还有: strange; natural;

obvious; true; good; wonderful; possible;unlikely; quite; unusual; certain; evident;worth-while; surprising; interesting;

astonishing, etc.

It is doubtful whether she will be able to

come.

It is essential that he should be here by theweekend.

It seems obvious that we can not go on like this.

需要注意的是这类主语从句中,谓语动词很多为“(should) 十动词原形", 即要用虚拟语气。

It is +过去分词+从句

It is said that ...据说..... It is reported that据报道.... It has been proved that...已证..... It must be proved that... 必须指出

类似的过去分词还有: known; estimated;expected; believed; thought; hoped; noted;discussed; required; decided; suggested;demanded; made clear; found out,etc.例如: It is used to be thought that a newstar must be due to a collision between two stars.

|t has not been made clear when the newroad is to be opened to traffic.

It seems不及物动词(happened /appears / doesn't't matter / makes no

difference / occurred .. that .. 主语从句不可提前

It makes no difference whether he willattend the meeting or not. It does notmatter if | missed my train.

It happened that | saw him yesterday.

(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:

Whether they would support us was aproblem.他们是否会支持我们还是一个问题。

(3)对关系代词型what引导的主语从句,通常直接将主语从句放在句首。如:

What we need is money.我们需要的是钱。

What | want to know is this. 我想知道的就是这一点。

有时也可将助用形式主语。如: It is clearenough what he meant.他是什么意思很清楚。

(4)如果句子是疑问句,则必须用带形式主语it的结构:

Is it true that he is the girl's father?他是那女孩的父亲,是真的吗?

How is it that you are late again?你怎么又迟到了?

四、连词that的省略问题

引导主语从句的连词that有时可省,有时不能省,其原则是:若that引导的主语从句直接位于句首,则that不能省略;若that引导的主语从句位于句末,而在句首使用了形式主语it,则that可以省略:

That you didn't go to the talk was a pity.很遗憾你没去听报告。(that不可省)

It was a pity (that) you didn't go to the talk.很遗憾你没去听报告。(that可省)

例句:The teacher told the children that the sun is round.这里需要注意时态。因为太阳是圆的是不可争的事实,所以主句的动词用is。

还有就是注意虚拟语气。

同位语从句

一、理解同位语从句的含义,把握同位语从句的实质

同位语从句是名词性从句中的主要从句之一,它一般跟在某些名词后面,用以说明该名词表示的具体内容。可以跟同位语从句的名词通常有news,idea,fact,promise,question,doubt,thought,hope,message,suggestion,words(消息),possibility等。引导同位语从句的词通有连词 that,whether,连接副词 how,when,where等。(注:if,which 不能引导同位语从句。)

eg:He must answer the question whether he agrees to it or not. 他必须回答他是否同意这样一个问题。

在主从复合句中作同位语的从句称为同位语从句。同位语从句一般用that, whether,what 内容过长,仅展示头部和尾部部分文字预览,全文请查看图片预览。 that在从句中作主语)

宾语从句:在句子中起宾语作用的从句叫做宾语从句.宾语从句分为三类:动词的宾语从句,介词的宾语从句和形容词的宾语从句。连接词一般都是that(指事务或人),which(指事),who(指人)。

状语从句可分为:时间状语从句;地点状语从句;原因状语从句;条件状语从句;目的状语从句;让步状语从句;比较状语从句;方式状语从句;结果状语从句。状语的位置比较灵活,可以位于句首、句末或句中。enough用作状语修饰形容词和副词时必须后置。由于状语从句与汉语结构和用法相似,所以理解和掌握它并不难。

eg:While John was watching TV, his wife was cooking.时间状语从句

表语从句:用作表语的从句叫表语从句。引导表语从句的关联词与引导主语从句的关联词大都一样。表语从句一定要用陈述语序。不可以用if,而用whether 连接表语从句(as if 例外)。位于句首时要用whether。that在表语从句中不可以省掉。

eg:The question is when he can arrive at the hotel.

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