高一英语名词性从句讲解

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高一英语名词性从句课件用ppt.ppt

高一英语名词性从句课件用ppt.ppt
2. She wondered if the buses would still be running. 宾语从句
3. The truth is that the fog is too thick for the bus to run that far. 表语从句
4. She sensed that she was being watched by a tall man in a dark coat. 宾语从句
二、时态
1. 如果主句是现在的时态 (包括一般现在时 , 现在进行时,现在完成时),从句的时态可根 据实际情况而定,(包括一般现在时,一般过 去时,一般将来时,现在完成时等)。
❖I know he lives here . ❖I know he lived here ten years ago . ❖I have heard that he will come tomorrow .
Practice time
if / whether
1. I asked her _i_f_/__w_h_e_t_h_e_r_ she had a bike. 2. We’re worried about __w_h_e_t_h_e_r_ he is safe. 3. I don’t know __w_h_e_t_h_e_r_ he is well or not. 4. I don’t know _w__h_e_th_e_r_ or not he is well. 5. I don’t know _w_h_e_t_h_e_r_/_if_ I should go.
❖ We don’t know _w_h_y____ they didn’t finish the job in time.

高中英语名词性从句知识讲解以及练习题 附答案

高中英语名词性从句知识讲解以及练习题 附答案

高中英语名词性从句知识讲解以及练习题附答案一、名词性从句概述名词性从句是一种充当名词作用的从句,通常在主句中作主语、宾语、表语或同位语。

它通常由引导词(如that, whether, if, who, whom, whose, which, what等)引导,并且从句中含有一个主语和谓语。

名词性从句的种类有很多,包括主语从句、宾语从句、表语从句和同位语从句等。

下面我们将逐一介绍这些从句。

二、主语从句主语从句作为一个名词,通常位于句首,是一个句子,主要作用是作为主句的主语。

引导主语从句的词:What (什么);Whether (是否);If (是否);That (那个)。

例句:What he said is true. (他说的是真的。

)Whether it will rain tomorrow is uncertain. (明天是否会下雨还不确定。

)If you go, I will go too. (如果你走,我也跟着走。

)That he is coming is good news. (他来的消息是好消息。

)注意:主语从句的谓语动词通常要用单数形式。

What引导的主语从句通常用来表示“事物”的概念。

三、宾语从句宾语从句是一个名词,通常位于主句的动词后面,作为主句的宾语。

它可以由常见的宾语从句引导词引导,例如whether, if, that, who, whom, whose, what, when, where, how等。

引导宾语从句的词:Whether (是否);If (是否);That (那个);Who (谁);Whom (谁);Whose (谁的);What (什么);When (何时);Where (何处);How (如何)。

例句:I know that he is coming. (我知道他要来。

)I wonder if he is telling the truth. (我想知道他是否说了真话。

高中英语语法讲解素材_名词性从句

高中英语语法讲解素材_名词性从句

高中英语语法讲解——名词性从句一、名词性从句的三类连词名词性从句包括主语从句,表语从句,宾语从句和同位语从句。

根据这些从句的共同特性,名词性从句的连词主要可以分成三类:that, if/ whether和wh-(疑问词)。

1.如果一个陈述句被用来作为另一个句子的主语、表语、宾语或同位语,那么我们一般要用that作为连词。

that本身在句子中没有意思,只起连接作用。

eg. 陈述句:Science is developing very fast.主语从句:It is known to all that science is developing very fast.表语从句:The fact is that science is developing very fast.宾语从句:Everyone knows that science is developing very fast.同位语从句:The fact that science is developing very fast is known to all.2.如果一个一般疑问句被用来作为另一个句子的主语、表语、宾语或同位语,那么我们要用whether或if作为连词。

whether/ if在句子中的意思是“是否”。

变成名词性从句后,原来的疑问句的词序要改成陈述句的词序(主语+谓语)。

eg. 一般疑问句:Shall we have a meeting this afternoon?主语从句:Whether we shall have a meeting this afternoon hasn’t been decided yet.或:It hasn’t been decided yet whether we shall have a meeting this afternoon.表语从句:The question is whether we shall have a meeting this afternoon.宾语从句:Do you know whether we shall have a meeting this afternoon?同位语从句:None of us can answer the question whether we shall have ameeting this afternoon.注意:原来的疑问句词序在从句中都被改变成陈述句的词序,复合句的标点符号由主句的句型决定。

高中英语名词性从句详细讲解.docx

高中英语名词性从句详细讲解.docx

高中英语名词性从句详细讲解一 . 名词性从句考查的焦点主要有以下六方面1.考查名词性从句的语序问题2.考查引导词 that 与 what 的区别3.考查 it 在名词性从句中作形式主语和形式宾语的用法4.考查 whether 与 if 的区别5.考查名词性从句中的疑问词 +ever 引导的名词性从句与 no matter+ 疑问词引导的状语从句的区别6.考查名词性从句的虚拟语气问题二 . 名词性从句的含义及连接词名词性从句的含义:在复合句中起名词作用的从句叫做名词性从句。

它包括主语从句、宾语从句、表语从句和同位语从句。

引导名词性从句的连接词可分为四类:1.that (无含义,不充当成分)2.whether, if(有“是否”的含义,但不充当成分)3. 连接代词: what,whatever, whomever,whose,which,whichever.who,whoever,(在从句中做主语、whom,宾语、表语和定语)连接副词: when, whenever,where,wherever, how, however,why (在从句中做状语)4.as if,as though,because (不充当成分,在名词性从句中只引导表语从句)三 .四类名词性从句语法要点1.主语从句在整个句子中用作主语的从句叫主语从句。

What he wants to tell us is not clear.他要跟我们说什么,还不清楚。

It is known to us how he became a writer.我们都知道他是如何成为一名作家的。

Where the English evening will be held has not yet been announced.英语晚会将在哪里举行,还没有宣布。

it作形式主语:有时为避免句子头重脚轻,常用形式主语it代替主语从句作形式主语放于句首,而把主语从句置于句末。

高一英语《名词性从句》讲解

高一英语《名词性从句》讲解

功能
例词
只起连接作 that, whether, 从属 用,不充当从 if,as if(只用 连词 句中的任何作 于表语从句) 用。
功能
例词
既起连接作用, Who,whom, 连接 本身又做从句 whose,what, 代词 的主语、宾语、 which 表语或定语。
功能
例词
when,where, 既起连接作用, 连接 why,how 本身又做从句 副词 的状语。
(1) They expressed the hope that they would come over to visit China again. (2) We all know the truth that the earth goes round the sun. (3) The fact that she had not said anything surprised all of us.
(1) 在whether or not结构中不可 用if代替whether
I don’t know whether or not he’ll come. I wonder whether it is true or not.
(2)介词后面的宾语从句用whether, 不用if
Everything depends on whether the situation will improve.(后面要讲 到介词后面的宾语从句)
3、It + be + 过去分词 + that从句 It is said that – clause
reported
thought hoped believed known
(1) It is said that he is the best student in the class.

高中英语名词性从句讲义(超详细版)

高中英语名词性从句讲义(超详细版)

名词性从句一.定义:在句子中起名词作用的句子叫名词性从句 (Noun Clauses)。

名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等,因此根据它在句中不同的语法功能,名词性从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。

1. His words are true. What he said is true.2. The dog sensed something good. The dog sensed that there was something good nearby.3. These are his words. These are what he said.4. My Maths teacher, Mr He, is a kind person. The news that the plane had crashed made us sad.二.引导名词性从句的连接词连词:在从句中不充当成分,只起连接作用 that, 无实义whether, if 是否as if \ as though 似乎,好像连接代词:有词义,在句中担任主语,表语,定语或宾语。

what, 什么 who, 谁whom, 谁,作宾语 whose, 谁的 which, 哪一个whatever, whoever……也可以引导。

连接副词:有词义,在句中担任状语。

when ,什么时候 where, 什么地方 why, 为什么 how ,怎么样how many, how much, how often三.主语从句1. 作句子主语的从句叫主语从句。

What he wants to tell us is not clear. 他要跟我们说什么,还不清楚。

It is known to us how he became a writer. 我们都知道他是如何成为一名作家的。

That he is late for school makes the teacher very angry. 他上学迟到让老师很生气。

高中英语2024届高考名词性从句知识分类讲解(主语从句+宾语从句+表语从句+同位语从句)

高中英语2024届高考名词性从句知识分类讲解(主语从句+宾语从句+表语从句+同位语从句)

高考英语名词性从句知识讲解名词性从句是指在复合句中起名词作用的句子,功能相当于名词词组。

名词性从句在复合句中能作主语、宾语、表语、同位语等,根据在句中的语法功能可分为主语从句、宾语从句、表语从句和同位语从句。

一、主语从句【定义】在复合句中,作主语的句子称为主语从句。

常见的连接词:(连接词在句中不能省略)that, whether, who, what, whatever, whoever, where, when, why, how等。

【用法】1.连接词 that 引导That we should learn English well is very important.主语从句中 we should learn English well句子完整,不缺成分,用that引导,that 不能省连接词whether,if 引导whether 引导的主语从句可放句首,也可放句中,表“是否”if 引导的主语从句只能引导动词后的宾语Whether I will go or not depend on the weather.It remains to be seen whether / if they can finish the task in time.2.连接代词what, who, which, whose, whatever, whichever,whoever等引导What matters most is your attitude.3.连接副词when,where,why,how等引导How he made it is still unknown.4.it作形式主语为了避免句子头重脚轻,通常把形式主语it放在句首,真正的主语放在句子后面。

常见句型:(1) It is + n.+ that + 句子It is +(a pity / a shame / a fact …)+ that ...(2) It is + adj.+ that + 句子It is +(true / clear / important …)+ that ...(3) It is + 过去分词 + that + 句子It is+ said / announced / expected / believed / hoped… + that ...(4) It seems /appears / happens / turned out that + 句子(5) It hit sb./occurred to sb.that + 句子二、宾语从句【定义】在复合句中,作宾语的句子称为宾语从句。

高中英语语法-名词性从句精讲(共73张PPT)

高中英语语法-名词性从句精讲(共73张PPT)

Whoever wants the book may have it. I’ll do whatever I can to help him. Buy whichever is cheapest.
连接副词 when, where, how, why
when • When they will start is unknown yet. where • Where she has gone is a mystery. how • How this happened is not clear. why • Why he did that wasn’t quite unclear.
主语从句关联词 连词 that, whether 连接代词 what, who, whom, which 连接副词 when, where, how, why
连词 that, whether
只起连接作用 在从句中不充当任何句子成分
• That he will win is certain.
• It has been reported that sales of beef in China will increase.
宾语从句关联词 连词 that, whether; if 连接代词 what, who, whom, whose, which 连接副词 when, where, how, why
• I doubt _______ he will come soon. • I do not doubt _____ he will come soon. • Do you doubt _____ he will come soon?
• what surprised me was what he said.

高中英语名词性从句.ppt.ppt

高中英语名词性从句.ppt.ppt

A. what B. who C. that D which
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which 表疑问,哪一个 who,whom 表疑问,谁 whoever ,whomever---- 无论是谁,不管 是谁。= anyone who those who where when why既可表疑问,也可不表疑 问
I still remember _____ this used to be a quiet village .
Why not try your luck downtown--- that’s ______good jobs are.
23
if, whether引导的名词从句
whether 与 if 均为 “ether 引导主语从句,表语从句,同位语从
with your job.
12
2) it做为形式主语和宾语
• ★ ★It’s a pity that you missed the film.
• It makes no difference whether he will attend the meeting or not.
• It is said that the novel has been translated into English.

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• 在主语从句、表语从句、同位语从句中,that不 能省略。
• 宾语从句中的连接词that在以下三种情况下不能 省略:
• (1)当that 从句与另一名词性从句并列作宾语 时,第二个that不能省;
19
名词性wh-从句
1)由wh-词引导的名词从句叫做名词性wh-从句。 wh-词包括who, whom, whose, what, which, ---ever 等连接代词和where, when, how, why等连接副词。 连接代词和连接副词在句中既保留自己的疑问含 义、又起连接作用,在从句中充当从句的成分。 连接代词在从句中做主,宾,表语。连接副词在 句中做表,状语。例如: 主语:How the book will sell depends on its author. 宾语:The club will give whoever wins a prize. 表 语 : My question is who will take over the president.

高中英语名词性从句课件(38张ppt)

高中英语名词性从句课件(38张ppt)
The idea that computers can recognize human voices surprises many people.
(that在从句中不充当任何成份)
The idea (that/which) he gave surprises many people.
(that在从句中作gave 的宾语)
宾语从句须注意
1) 由疑问词引导的从句中, 词序按陈述句 顺序排列。
e.g. I wonder what he is doing. 注意:I wonder what was wrong /the matter
with him. 2)当主句的谓语动词是过去时的时候, 从句的 谓语动词应用相应的过去时。自然规律和客观 真理例外。
4) That在其他名词性从句中均不可省略,只有 在宾语从句中that有时可以省略,但在并列 的宾语从句中第二个that 不可省略。
e.g. He said (that) he would leave and that he would never come back again.
5) 否定的转移 若主句谓语动词为think, consider, suppose, believe, expect, fancy, guess, 等, 其后的宾语 从句若含有否定意义, 一般要把否定词转移到 主句谓语上, 从句谓语用肯定式。 e.g. I /we don’t think this dress fits you Well, does it?
3. 连接代词: what, whatever, who, whoever, whom,whose, which(哪个): 不仅起到连接一个句子的作用,同时也是从句 的一个组成部分;从句不完整,缺成份。

高中英语名词性从句详细讲解与练习(附答案)

高中英语名词性从句详细讲解与练习(附答案)

高中英语名词性从句详细讲解与练习在句子中起名词作用的从句叫名词性从句。

名词性从句的功能相当于名词词组,它在复合句中能担任主语、宾语、表语、同位语,因此根据它在句中不同的语法功能,名词性从句又可分为主语从句、宾语从句、表语从句、同位语从句。

引导名词性从句的词叫做连接词,包括:1.连词(在名词性从句中只起连接作用,不作成分)2.连接代词(在名词性从句中作主语、宾语或表语)3.连接副词(在名词性从句中作状语)所有的名词性从句的语序都是陈述语序。

I主语从句:是在主句中作主语的从句。

它由连接词引导,通常位于谓语动词之前。

连接词:1.连词:在从句中不充当任何成分,常见的引导主语从句的连词有that, whether oThat he got the first prize excited him much.他获得一等奖一事使他非常兴奋。

It is doubtful whether we can get there on time.我们能否按时到达那儿还不确定。

D that引导的主语从句:在从句中不作任何成分,也没有实际意义。

一般情况下that不可省略。

That light travels in straight lines is known to all.众所周知,光沿直线传播。

That you don't like him is none of my business.你不喜欢他不关我的事。

2)whether引导的土语从句:常置于句首,表示“是否”之意;if一般不引导主语从句。

Whether he can finish his task on time is of greatimportance.他是否能按时完成任务非常重要。

Whether you can succeed or not depends on howhard you work at it.你能否成功取决于你努力的程度。

2.连接代词:在从句中起名词或代词的作用,常作从句的主语、宾语、表语或定语,有具体意义且不能省略。

高一英语必修3名词性从句讲解

高一英语必修3名词性从句讲解

高一英语必修3名词性从句讲解在句子中起名词作用的句子叫名词从句(Noun Clauses)。

名词从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等,因此根据它在句中不同的语法功能,名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。

一、引导名词性从句的连接词引导名词性从句的连接词可分为三类:连接词:that,whether,if 不充当从句的任何成分)连接代词:what, whatever, who, whoever, whom,whose, which.连接副词:when, where, how, why不可省略的连词:1. 介词后的连词2. 引导主语从句和同位语从句的连词不可省略。

That she was chosen made us very happy.We heard the news that our team had won.比较:whether与if 均为"是否"的意思。

但在下列情况下,whether 不能被if 取代:1. whether引导主语从句并在句首2. 引导表语从句3. whether从句作介词宾语4. 从句后有"or not"Whether he will come is not clear.大部分连接词引导的主语从句都可以置于句末,用it充当形式主语。

It is not important who will go.It is still unknown which team will win the match.二、名词性that-从句1)由从属连词that引导的从句叫做名词性that-从句。

That只起连接主句和从句的作用,在从句中不担任任何成分,本身也没有词义。

名词性that-从句在句中能充当主语、宾语、表语、同位语和形容词宾语,例如:主语:That he is still alive is sheer luck.他还活着全靠运气。

(完整版)高中英语名词性从句详解

(完整版)高中英语名词性从句详解

(完整版)高中英语名词性从句详解名词性从句【名词性从句】相当于名词,可分别作主句的主语、表语、宾语和同位语。

因此,名词性从句分为主语从句、表语从句、宾语从句和同位从句。

宾语从句——在复合句中作主句及物动词的宾语,也可作介词或某些形容词的宾语1。

连接词从属连词that whether if 不担任成分只起连接作用关系代词who whom whose whatwhich既担任成分,又起连接作用。

主语,宾语或表语等关系副词when where why how 既担任成分,又起连接作用常担任状语◆I think (that) you will like the pictures。

◆ He has become what he wanted to be ten years ago。

◆ I don't know why Jane was late for school this morning。

◆The teacher is pleased with what she said。

◆I’m afraid that I can’t go to the party。

2.注意事项(that通常可以省略)。

但如从句是并列句时,第二个分句前的that 不可省。

◆He told me (that) he was ill and that he would not come to the party。

②陈述语序◆ I want to know what he has told you。

◆ She will give whoever needs help a warm support。

③注意宾语从句中的时态呼应。

当主句动词是现在时,从句根据自身的句子情况,而使用不同时态。

当主句动词是过去时态(could, would除外),从句则要用相应的过去时态,如一般过去时,过去进行时,过去将来时等;当从句表示的是客观真理,科学原理,自然现象,则从句仍用现在时态。

高一英语名词性从句课件

高一英语名词性从句课件

Exercises We consider ____ the instrument should be adjusted each time it is used. A that it necessary B necessary that C it necessary that D necessary of it that You will see to _____ the engine does not get out of order. A that B however C it that D which They believed that land did not belong to people but _____ people belong to land. A that B when C where D how

___ some mammals came to live in the sea is not known. A That B What C How D Since ____ that not all government officials are honest. A It seems to me B In my opinion, I believe C My believing is D I think in my mind ____ is of no concern to us. A It rains or not B If it rains or not C Whether it rains or not D Will it rain or not

用形式主语it来引导句子 1 大多数主语从句都可以用it作形式主语,把 从句置于句尾。但是,当what 作为引导词 表示“---的东西”时,一般不用it 作形式 主语。Whatever, whoever, whichever 一 般也不用it 作形式主语。 It is strange that he made no answer. It has not been decided yet whether she will go by bus or by train. It is not very clear what they are talking about.

高一英语名词性从句讲解

高一英语名词性从句讲解

名词性从句复合句包括两个或两个以上的主谓结构,其中一个是主句,另一个是从句(即在整个句子中作句子的一个成分,不能独立)。

按照从句在句中的功能,可分为名词性从句、定语从句和状语从句。

名词性从句包括主语从句、宾语从句、表语从句和同位语从句。

因为这四种从句在整个句子中所起的作用相当于一个名词,因此,统称为名词性从句。

名词性从句需由连接词引导,连接词主要有三类:从属连词、连接代词和连接副词。

从属连词只起连接作用;连接代词和连接副词既起连接作用,又在从句中充当某一个成分。

另外,名词性从句要用陈述语序。

考点一主语从句常引导主语从句的连接词有从属连词:that(无词义),whether/if(是否);连接代词:what(什么;所……的),who(主格,谁),whom(宾格,谁),which(哪一个),whose(谁的),whatever(无论什么),whoever(主格,无论谁),whomever(宾格,无论谁),whichever(无论哪一个)等;连接副词:when(什么时候),where(什么地方),why(为什么),how(怎样)等。

1.that引导的主语从句that只起连接作用,无词义,在从句中不作成分,一般不能省略。

如:That he will come and help us is certain.他来帮我们是肯定的了。

That pneumonia is a comrnon disease is known to all。

众所周知,肺炎是一种普通疾病。

2.whether/if引导的主语从句whether引导的主语从句既可放在句首也可放在句尾,但if引导的主语从句只能放在句尾,前面需用it作形式主语。

whether/if只起连接作用,译成“是否”,在从句中不作成分。

如:Whether it is true remains a question.它是真是假,还是个问题。

(不能用if)It is doubtful whether the manager knew the details of the plan.经理是否知道计划的细节,还值得怀疑。

高一英语名词性从句课件用

高一英语名词性从句课件用

宾语从句的用法和例子
用法
宾语从句作为动词的宾语,通常跟在及物动词或介词后面。
例子
I don't know where he went yesterday.
表语从句的用法和例子
用法
表语从句作为主语或宾语的补充,用来描述或说明主语或宾语的特点。
例子
My biggest concern is whether the project will be completed on time.
高一英语名词性从句课件 用
名词性从句旨在解释名词在句中的作用,分为主语从句、宾语从句、表语从 句和同位语从句,在接下来的幻灯片中我们将会学习它们的用法和例子。
名词性从句的定义
1 什么是名词性从句?
名词性从句是在句子中充当名词的子句,可以作为主语、宾语、表语或同位语。
名词性从句的分类
1 主语从句
主语从句作为主语出现在句子中,用来说明 句子的主要内容。
2 宾语从句
宾语从句作为动词的宾语出现在句子中,接 受动作的影响。
3 表语从句
表语从句作为主语或宾语的补充,用来描述 或说明主语或宾语的特点。
4 同位语从句
同位语从句用来解释和说明名词的具体内容 或定义。
主语从句的用法和例子
用法
主语从句作为句子的主语,通常出现在句首或句子中间。
例子
Whether we should go camping this weekend is still undecided.
同位语从句的用法和例子
用法
同位语从句用来解释和说明名词的具体内容或定义。
例子
The fact that she passed the exam was a pleasant surprise.

(完整word版)高一英语名词性从句讲解

(完整word版)高一英语名词性从句讲解

高一英语名词性从句讲解在复合句中起名词作用的从句叫做名词性从句。

它包括主语从句、宾语从句、表语从句和同位语从句。

名词性从句是中学阶段的一个重要语法项目,在历年的高考中几乎都涉及到,并且每年的命题各有变化。

分析历届高考试题名词性从句考查的焦点主要有以下六个方面1. 考查名词性从句的语序问题2. 考查引导词that与what的区别3. 考查it在名词性从句中作形式主语或形式宾语的用法4. 考查whether与if的区别5. 考查名词性从句中的疑问词+ever引导的名词性从句与no matter+疑问词引导的状语从句的区别6. 考查名词性从句的虚拟语气问题语法要点剖析一、名词性从句主语从句、表语从句、宾语从句、同位语从句,在整个句子中所起的作用,相当于一个名词。

因此,这四种从句通称为名词性从句。

引导名词性从句的连接词可分为三类:连接词:that, whether, if (不充当从句的任何成分)连接代词:what, whatever, who, whoever, whom, whose, which.连接副词:when, where, how, why1. 主语从句作句子主语的从句叫主语从句。

主语从句通常由从属连词that,whether,if和连接代词what,who,which,whatever,whoever以及连接副词how,when,where,why等词引导。

that在句中无词义,只起连接作用;连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用,在从句中充当从句的成分。

例如:What he wants to tell us is not clear. 他要跟我们说什么,还不清楚。

It is known to us how he became a writer. 我们都知道他是如何成为一名作家的。

Where the English evening will be held has not yet been announced.英语晚会将在哪里举行,还没有宣布。

高一英语-名词性从句ppt课件.ppt

高一英语-名词性从句ppt课件.ppt

主语从句
主语从句有时用“it”作形式主语,把真正的 主语放在后面,以避免头重脚轻。
That he will come here is known to us.
___________________________________
_I_t
is
known
to
us
that he will come here.
病原体侵入机体,消弱机体防御机能 ,破坏 机体内 环境的 相对稳 定性, 且在一 定部位 生长繁 殖,引 起不同 程度的 病理生 理过程
主语从句
在句中充当主语的从句叫做主语从句。
That he will come here on Wednesday is certain. 不充当成份
Whether he will come here on Wednesday is not 不充当成份
请判断出下列的句子属于哪种从句: (主语从句)
• What I _w___a_n__t_ to do i_s to go shopping.
(同位语从句)
2. The news that they _w__o__n__ the game s__p__r_e__a__d__
the whole school.
名词性从句
主语从句 宾语从句 表语从句 同位语从句
在英语的句子结构中,如果本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,那么这 个句子就叫_名__词__性__从__句_。
病原体侵入机体,消弱机体防御机能 ,破坏 机体内 环境的 相对稳 定性, 且在一 定部位 生长繁 殖,引 起不同 程度的 病理生 理过程
1. The boy is Li Ming. (名词作主语) 2. What he said is correct.
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名词性从句1.种类2.宾语从句的时态。

3.that什么情况下可以省略,什么情况下不可以省略。

4.whether和if什么时候可以互换,什么时候不可以互换。

5.如何区分同位语从句与定语从句。

1.______thebabycouldspeakmadehisparentsveryhappy.2.Iwonder______youwillgoshoppingorstayathome.3.Thisis______hewasoftenlateforschool.4.Weallknowthetruth______theearth______aroundthesun.一.名词性从句的概念:一个句子在连接词的引导下,在句子中起名词作用的句子叫名词性从句。

二.名词性从句的功能:相当于名词词组,它在复合句中能担任主语、宾语、表语、同位语、介词宾语等。

Hisjobisimportant.(主语)Whathedoesisimportant.(主语)Thisishisjob.(表语)Thisiswhathedoeseveryday.(表语)Idon’t likehisjob.(宾语)Idon’t likewhathedoeseveryday.(宾语)Idon’tknowabout thefactthatheisateacher.(同位语)Idon’tknowabout theman,Mr.White.(同位语)得出结论:因此根据它在句中不同的语法功能,名词从句又可分为四类,即:主语从句、宾语从句、表语从句和同位语从句。

三.引导名词性从句的连接词:1、连接代词:who,whoever,whose,whom,whomever,what,which。

有词义,在从句中担任成分,如主语、表语、宾语、或定语等。

●Idon’tbelieve__________hehasachievedsofar.●__________breaksthelawshouldbepunished.2、连接副词:when,where,why,how。

有词义,在从句中担任成分,作状语。

●__________wewillhandintheprojectwillbediscussedlater.●Parentsarethoughttounderstand__________importanteducationistotheirchildren’sfuture.●Thereason__________hewasabsentwasthathewasill.3、连接词:that,whether,if,asif,asthough。

that无词义,在从句中不担任成分,有时可省略;if(whether),asif虽有词义,但在从句中不担任成分。

●Idon’tcareabout__________youhavemoneyornot.●Theproblemis__________Tomisabletoarriveontime.●__________themeetingwillbeheldhereisnotdecidedyet.●Itlooks__________itisgoingtorain.●Thetruthis__________hedidn’tcomefortheconcert.●__________theearthisroundistrue.四.名词性从句的类型:1.主语从句:在复合句中作主句的主语。

连接词有that,whether;who,what,which;when,where,how,why等。

如:●__________heisafamoussingerisknowntous.●__________hewillgotoAmericaisnotyetfixed.●__________she’scomingornotdoesn’tmattertoomuch.●__________broketheglassyesterdayisnotclear.注意:1.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。

记住以下it作形式主语的句型:e.以it作形式主语,把主语从句后置的常见句型有:1.Itis+名词+从句It'sapity/shamethat…很可惜/很遗憾……It'snosurprise/wonderthat…毫不奇怪/很正常……2.Itis+形容词+从句It'scertain/uncertain/obviousthat……肯定…/不确定/显然……It'slikely/possible/probablethat…有可能……3.Itis+过去分词+从句It'ssaid/reported/thought/believethat…据说/据报道/大家认为/人们相信……4.It+不及物动词+that不及物动词有seem/happen/appear/occur/doesn’tmatter/makesnodifference5.Ithappensthat…碰巧……●Itworriedherabit______herhairwasturninggrey.●Itremainsaquestion______wecangetsomuchmoneyinsuchashorttime.●Itisknowntous______wherethereispollution,thereisharm.2.单个的主语从句作主语时,谓语动词用句单数形式;如果是两个或两个以上的主语作主语,谓语动词用复数。

Whenandwherehewasbornhasn’tbeenfound. Whenhewasbornandwherehewasbornhaven’tbeenfound.Exercises:●.______makesthisshopdifferentisthatitoffersmorepersonalservices.●______Icanpaybackthehelpthatpeoplegivememakesmeveryhappy.●It’snotclear______wasresponsiblefortheaccident.●______intheregulationsthatyoushouldnottellotherpeoplethepasswordofyoure-mail account.A.WhatisrequiredB.WhatrequiresC.ItisrequiredD.Itrequires2.表语从句:在复合句中作主句的表语。

引导词有连词that,whether,asif,asthough;who,what,which,whose;when,where,how,why,because等。

如:●Theproblemis_________wedidn’tgetintouchwithhim.●Thisis_________Henrysolvedtheproblem.●Hissuggestionis_________we(should)finishtheworkatonce.●Itlooked_________itwasgoingtorain.●Thereason_________wedidn'ttrusthimis_________hehasoftenlied.注意:1.如果句子的主语是suggestion,advice,order,demand,proposal等名词时,后面引导的表语从句用should+动词原形,should可省略。

他的建议是我们应该马上完成工作.Hissuggestionisthatwe(should)finishtheworkatonce.2.Thereasonisthat……的理由是,…的原因是…Thereason__________hewaslateagainwas__________hewascaughtinthetrafficjam.3.Itisbecause…这是因为…Exercises:●Thisis______shewasborn.●Thequestionis______wecan’tgotheretoday.●Myadviceisthathe______(go)toschoolbybike.●______shecouldn’tunderstandwas______fewerandfewerstudentsshowedinterestinherlessons.●Energyis______makesthingswork.3.宾语从句:在复合句中作主句的宾语。

引导词有连词that,whether,if;who,whom,whose,what,which;when,where,how,why等。

如:(1)V+宾语从句,即“动宾”:Webelievethatheishonest./Iaskediftheyhadacheapsuit./Canyoutellmewhichdictionaryishers?/Ireally don’tknowwhatheisdoing.●Ijustdon’tunderstand______thatpreventssomanyAmericansfrombeingashappyasone mightexpect.A.whyitdoesB.whatitdoesC.whatitisD.whyitis●---Don’tyoubelieveme?---______,Iwillbelieve______yousay.A.No;whateverB.Yes;nomatterwhatC.No;nomatterwhatD.Yes;whatever●“Whatdidyourparentsthinkaboutyourdecision?”“Theyalwaysletmedo______Ithink Ishould.”A.whenB.thatC.howD.what.(2)prep+宾语从句,即“介宾”:He’spleasedwithwhatwedidyesterday./Payattentiontowhattheteachersaid.●Iwishtohaveafriendwith______sharesmyhobbiesandinterests.A.whomeverB.nomatterwhoC.whoeverD.anyone●Marywroteanarticleon______theteamhadfailedtowinthegame.A.whyB.whatC.whoD.that●Itwasamatterof______wouldtaketheposition.A.whoB.whoeverC.whomD.whomever(3)adj+宾语从句,即“形宾”:I’msurethatmybrotherwilllovethejacket./Iamgladthatyoucancomeandhelpme.不能误将”It+be+adj+that”的主语从句当成宾语从句.如:ItisnecessarythatweshouldlearnEnglishwell.注意:(1)whether与if都可以引导宾语从句,常可互换。

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