高中英语名词性从句详细讲解
名词性从句讲解(最全版)
名词性从句讲解(最全版)名词性从句是一个从句,它在句子中充当名词的角色。
它可以作为主语、宾语、表语、同位语或介词宾语。
名词性从句通常由连接词引导,如that、whether、if、who、whom、whose、which、what等。
1. 作为主语:名词性从句可以作为主语,取代一个名词或名词短语,引导词通常为that或whether。
例如:- What you said is true.(你说的是真的。
)- Whether he will come is still uncertain.(他是否会来还不确定。
)2. 作为宾语:名词性从句可以作为及物动词或介词的宾语,引导词通常为that、whether、if、who、whom、whose、which、what等。
例如:- She asked me what I wanted.(她问我想要什么。
)- I don't know if/whether he will come.(我不知道他是否会来。
)3. 作为表语:名词性从句可以作为系动词的表语,引导词通常为that、whether、who、whom、whose、which、what等。
例如:- The problem is that she doesn't understand.(问题在于她不理解。
)- The question is who will take care of them.(问题是谁会照顾他们。
)4. 作为同位语:名词性从句可以作为同位语,解释或说明前面的名词或代词,引导词通常为that、whether、who、whom、whose、which、what等。
例如:- The fact that he lied surprised me.(他撒谎的事实让我感到惊讶。
)- His belief that she will succeed is unwavering.(他坚信她会成功。
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。
名词性从句-完整版PPT课件精选全文
3. 连接副词:when(=the time when什么时候,何时),where(=the place where什么地方,何地),how(=the way that/in which怎样, 以……方式,如何),why=the reason why为什么)。它们除起连 接作用,还在从句中作状语。
3) wh类连接词引导的主语从句: wh类连接词包括wh类的连接代词(who, whom,
whose, which, what, whoever, whomever, whichever, whatever等)和连接副词(when,
where, how, why, whenever, wherever, however 等)。what, when和wh-ever类的词有时可不表 疑问。wh类连接代词在句中既起连接作用, 又可充当主语、宾语、表语、定语等成分。 wh类连接副词在句中起连接作用,在从句中 可充当时间、地点、原因、方式状语。
【温馨提示】 ①whether/ if引导宾语从句表示“是否”
的意思时,一般情况下可互换。 ②if引导宾语从句时可以有否定式,而
whether从句则没有。 e.g. I don’t care if he doesn’t come.
5) 特殊疑问词引导的宾语从句: 由who, what, how, which, whose, where, why等词引导的宾语从句,可作动词、 介词及形容词的宾语。
【温馨提示】 doubt, doubtful与sure后名词性从句连接词 that, whether, if的选择。 ①当doubt, doubtful用于肯定句时,后面的名
词性从句的连接词常用whether或if;当 doubt, doubtful用于否定句或疑问句时,后 面名词性从句的连接词用that。
高中英语语法名词性从句专题讲解
高中英语语法名词性从句专题讲解一、that 从句1、主语从句(1)that从句作主语时,常用it作形式主语,常见的句型有:It+be+形容词(obvious, true, natural,surprising,good,wonderful,funny,possible,likely,certain,prob able,etc.)+that从句It+be+名词词组(no wonder, an honor, a good thing, a pity, no surprise, etc.)+that从句It+be+过去分词(said, reported, thought, expected, decided, announced, arranged, etc.)+that从句(2)that可以省略,但that从句位于句首时,that不能省略。
2、宾语从句(1)常见的可以接that从句作宾语的动词有see, say, know, imagine, discover, believe, tell, show, think, consider, be sure, be afraid等。
在可以接复合宾语的动词之后,如think, make, consider等,可以用it作形式宾语。
(2)That从句一般不能充当介词宾语,偶尔可作except, in 的宾语。
3、表语从句(that不可省略)4、同位语从句连词that引导同位语从句时,应在某些抽象名词之后,如:fact, hope, desire, thought, suggestion, idea, news, problem, possibility等,对前面的名词起补充说明的作用,that在从句中不担当任何成分,不能省略。
二、whether/if从句1、在表语从句和同位语从句中只能用whether不能用if;当主语从句放于句首时,只能用whether不用if;当it作形式主语,主语从句放在句末时用whether或if均可;discuss后引导宾语从句时,必须用whether。
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。
高中名词性从句语法精讲详解
高中名词性从句语法详解名词性从句:宾主同表(宾从,主从,同从,表从)一、宾语从句宾语从句的类型(1)主语+谓语+宾语从句He said that he wouldn’t take part in the sports meeting.(2)主语+be+adj+宾语从句I’m sure that our team will win.☆只限于少数adj. sure, certain, afraid, confident, etc(3)主语+谓语+宾(表)语+介词+宾语从句(except, in that在于,因为)He is a good student except that he is a little careless.I like the city,but I like the country better in that I have more friends there1. 宾语从句的连接词1)连词that,只起连接作用,在从句中不作句子成分,也无词汇意义,在口语中常被省略★由that 引导的宾语从句在以下情况下不能省略:(1).在主+谓+it(形式宾语)+宾补+that从句(真正宾语) 的句型中:表喜欢、憎恶等心理活动的动词或词组后习惯上先跟形宾it:hate, love, enjoy, dislike, don’t mind, feel like, appreciate, rely/depend on, count on, see to, take, owe等We must make it clear that we mean what we say.We heard it that she would get married next month.(2).由and连接的两个由that引导的宾语从句中,第二个that 不省略.He told me (that) he would come and that he would come on time. (3) 从句前有插入语:He may tell you, for example, that she is interested in Chinese(4)从句主语是that时:He says that that is a useful book(5)当that从句是双宾语中的直接宾语时,that不可省。
高中英语知识点归纳名词性从句
高中英语知识点归纳名词性从句名词性从句是英语中的一个重要语法知识点,它在句子中起着名词的作用。
名词性从句一般由连接词引导,可以作主语、表语、宾语、同位语等。
它的运用能够使句子更加丰富多样,增加表达的灵活性。
本文将对名词性从句的几种常见情况进行归纳总结。
一、名词性从句作主语名词性从句可以作为句子的主语,它承担了动词的逻辑主语的地位。
常用的连接词有:that, whether, if等。
1. 引导词为that的情况:例如:That he didn't come as he had promised was disappointing.翻译:他没有按照承诺的那样来,真令人失望。
2. 引导词为whether/if的情况:例如:Whether he will come or not remains unknown.翻译:他是否会来还是个未知数。
二、名词性从句作表语名词性从句可以作为句子的表语,表达主语的性质、特点、状态等。
常用的连接词有:that, whether, what等。
例如:It is unclear whether he is telling the truth or not.翻译:他是否在说真话还不清楚。
三、名词性从句作宾语名词性从句可以作为句子的宾语,接在及物动词、介词后面。
常用的连接词有:that, whether, if, what, who, whom, which, whose等。
1. 当宾语从句是及物动词的宾语时,常用连接词是that。
例如:He said that he would come tomorrow.翻译:他说他明天会来。
2. 当宾语从句是介词的宾语时,常用连接词是whether/if, 当介词为介词to时,连接词也可以用为不定式to。
例如:She is not sure about whether/if he will join us.翻译:她不确定他是否会加入我们。
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)
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.
高中名词性从句讲义
名词性从句一.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、表语从句、宾语从句和同位语从句。
二.名词性从句连接词1.连接词that;不充当句子成分; 无词义; 只起连接作用。
2. if/whether;意为“是否”,有词义2; 不做句子成分; 起连接作用3.连接代词:what(ever), which(ever), who(ever), whom(ever), whose(ver)有词义; 引起从句; 且在从句中充当一定的句子成分,常做从句中的主语、宾语、表语和定语。
4. 在名词性从句中一律用陈述句的语序,即使从句表达的是疑问含义。
三.if, whether的区别1.引导主语从句时,如果主语从句放在句首,只能用whether不能用if引导,但是如果用it 做形式主语,而把主语从句放在句末时,也可以用if引导.2.引导宾语从句时常放在动词know, ask, care, wonder之后,if和whether均可。
少数动词,如: leave, put, discuss, doubt后的宾语从句常用whether. 。
3.在介词后面的宾语从句中,在表语从句、同位语从句中,表“是否”,只能用whether;4.whether和if都可以和or not连用,但是whether 之后可以直接跟or not,而if不可以。
I don’t know whether or not I will stay.(只能用whether)5.在不定式前只能用whether.如:I can’t decide whether to stay. 我不能决定是否留下。
四.名词性从句以考查引导词为主,同时考查时态,语序,与其它从句的区别以及混同虚拟语气的考查。
一.主语从句1.主语从句定义:在复合句中充当主语的句子叫做主语从句。
That he will succeed is certain.Whether wild life can be well protected is of great importance.Who will go makes no different.Which kind of food is the best is still not certain.What is needed for the space trip is careful preparation.Whoever comes is welcome.How we can help the twins will be discussed at the meeting.When they’ll start the project has not been decided yet.Where he hid the money is to be found out.Why dinosaurs died out remains a puzzle.单个主语从句作主语时,谓语动词用单数形式。
高中英语语法---名词性从句详解
名词性从句详解名词性从句包括主语从句、表语从句、宾语从句、同位语从句。
其关联词有连接词that,if,whether;疑问代词who,what,which和疑问副词when,where,how,why等。
一.语法讲解1.主语从句主语从句在句中做主语。
它可以放在主句谓语动词之前,但多数情况由it作形式主语,而把主语从句放在主句之后。
例如:Who did that is known to all.It is interesting that you should like him.2.表语从句表语从句在句中作表语,位于主句中的系动词之后。
如:The question is who can complete the difficult task.表语从句不能用if引导,但可用as if引导。
例如:He looked as if he was going to cry.3.同位语从句同位语从句跟在名词后面,进一步说明该名词的具体内容。
引导同位语从句的名词主要有fact,news,promise,idea,truth等。
连接词用that(不用which),及连接副词how,when,where,why等。
例如:His delay is due to the fact that the car went wrong halfway.The news that our team has won the match is true.She asked the reason why there was a delay.4.宾语从句1.宾语从句在句中作及物动词或介词的宾语。
例如:We can learn what we did not know.He will talk to us about what he saw in the U.S.如果主句的谓语动词是及物动词make,find,see,hear等,则把宾语从句置于宾语补足语之后,用it作为形式宾语。
高中英语知识点归纳名词性从句的用法
高中英语知识点归纳名词性从句的用法名词性从句是英语中一个重要的语法结构,它可以在句子中充当名词的作用。
名词性从句可以作主语、宾语、表语和同位语等,它的引导词有很多种,比如that, whether, who, whom, whose, which, what, when, where等。
本文将对名词性从句的用法进行归纳总结。
1. 名词性从句作主语名词性从句作主语时,常用it代替整个从句,并将从句放在句子的后面。
例如:It is important that we learn English well.(我们学好英语很重要。
)2. 名词性从句作宾语名词性从句作宾语时,常与一些动词或介词搭配使用。
例如:I believe that he will come.(我相信他会来。
)She is not sure whether he likes her or not.(她不确定他是否喜欢她。
)They asked me what time the train would leave.(他们问我火车什么时候开。
)3. 名词性从句作表语名词性从句作表语时,常用it代替整个从句,并将从句放在句子的后面。
例如:The important thing is that we try our best.(重要的是我们尽力。
)4. 名词性从句作同位语名词性从句作同位语时,修饰前面的名词,起进一步说明或解释的作用。
例如:The fact that he lied surprised me.(他撒谎的事实使我吃惊。
)除了以上几种常见的使用方式,名词性从句还有一些特殊的用法。
5. 名词性从句与疑问词连用名词性从句与疑问词连用时,疑问词可以是关系代词或关系副词,例如:I don't know who will come.(我不知道谁会来。
)Please tell me where you were last night.(请告诉我你昨晚在哪里。
(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。
高中英语知识点归纳名词性从句的引导词与结构技巧
高中英语知识点归纳名词性从句的引导词与结构技巧名词性从句是指在句子中充当名词的从句。
在英语中,名词性从句分为主语从句、宾语从句、表语从句和同位语从句。
而这些名词性从句的引导词和结构技巧对于理解和运用名词性从句起到至关重要的作用。
本文将对高中英语中常见的名词性从句的引导词和结构技巧进行归纳总结。
一、主语从句主语从句在句中充当主语的角色,包含三类引导词:连接代词、连接副词和连接形容词。
1. 连接代词:连接代词有三个:that, whether和连接代词who, whom, whose, which等。
其中that在主语从句中使用最为广泛,如 "That he is innocent has been proved."(他是无辜的已经被证明)。
2. 连接副词:连接副词有三个:how, why和when。
例如:"Why he did that is still unknown." (他为什么那样做仍然未知)3. 连接形容词:连接形容词有两个:what和which。
例如:"What he said is true."(他说的是真的)二、宾语从句宾语从句在句中充当宾语的角色,通常由连接代词和连接副词引导。
1. 连接代词:宾语从句中最常用的连接代词为that, who, whom, whose, which和what。
例如:"I know that he is my friend."(我知道他是我的朋友)2. 连接副词:宾语从句中最常用的连接副词为how, when, where, why等。
例如:"I don't know why he left."(我不知道他为什么离开)三、表语从句表语从句在句中充当表语的角色,由连接代词和连接副词引导。
1. 连接代词:表语从句中最常用的连接代词为that, who, whom, whose, which和what。
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可以作为主句的主语、表语、宾语和同位语。
它们分为主语从句、表语从句、宾语从句和同位从句。
宾语从句作为复合句中的主句及物动词的宾语,也可以作为介词或某些形容词的宾语。
它不担任成分,只起连接作用。
连接词可以是从属连词、关系代词、关系副词。
从属连词包括that、whether、if;关系代词包括who、whom、whose、what、which;关系副词包括when、where、why、how。
这些词既担任成分,又起连接作用。
宾语从句的例子有:I think (that) you will like the pictures。
He has e 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.在宾语从句中,由that引导的从句可以省略,但如果从句是并列句时,第二个分句前的that不可省略。
另外,宾语从句中的时态要与主句呼应,如果主句动词是过去时态,从句则要用相应的过去时态。
如果从句表示的是客观真理、科学原理或自然现象,从句仍用现在时态。
如果主语谓语动词为think、consider、suppose、believe、expect、guess、imagine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。
XXX。
It is often said that traveling broadens the mind。
I XXX I was determined to carry out the plan。
I consider it XXX。
高中英语语法 名词性从句详解
宾语从句的语序
和其他词性从句一样,宾语从句必须使用陈述语序, 不能用疑问语序。
How can I get to the station? Can you tell me →Can you tell me how I can get to the station 你能 告诉我怎样去车站吗? What does he like? I wonder. →I wonder what he likes. 我想知道他喜欢什么。
Choose the right answer
1. I have no idea ____. a. what does this word mean b. what this word means c. what the meaning of this word d. what kind of a meaning is this word
because, why引导的表语从句
That‟s because he didn‟t understand me. 那是因为他没有理解我。(That„s because 强调原因) That‟s why he got angry with me. 那正 是他对我生气的原因。(That‟s why 强 调结果)
Define the following sentences
Exercise:
1. __ we shall be late is certain. a. when b. how c. why d. that 2. __ he says doesn‟t concern you. a. what b. how c. that d. which 3. It is not yet known __ he did. a. how b. that c. what d. when
(完整版)高中英语语法总结-名词性从句
名词性从句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.第一节知识点讲解顾名思义,主语从句在句子中作主语。
有时本身出现在主语的位置上,也有时出于句子结构的考虑退到句子的尾部,前面用形式主语it代替。
从句作主语时,谓语动词一般为单数形式。
如:What I saw was beyond any verbal description。
That his hair was turning grey worried him a bit。
Why the company denied the contract is still unknown。
When and where the government will build a city square is under discussion.It is pretty annoying that a small part of the machine is missing。
It remains to be seen whether the new novel will be well received。
Tips:主语从句的that绝对不能省去。
因为句子是不能做主语的,故用that引导.若去掉则没有了主语,而宾语从句的that可省。
主语从句:That he is right is known to all of us.宾语从句:We all know (that) he is right.1. It 作形式主语和it引导强调句的比较It 作形式主语代替主语从句,主要是为了平衡句子结构,主语从句的连接词没有变化。
而it引导的强调句则是对句子某一部分进行强调,无论强调的是什么成分,都可用连词that.被强调部分指人时也可用who/whom。
(完整版)高中英语名词性从句讲解
适用文档名词性从句解说在复合句中起名作用的从句叫做名性从句。
它包含主从句、从句、表从句和同位从句。
名性从句是中学段的一个重要法目,在年的高考取几乎都波及到,而且每年的命各有化。
解析届高考名性从句考的焦点主要有以下六个方面1.考名性从句的序2.考引 that与 what 的区3.考 it 在名性从句中作形式主或形式的用法4.考 whether 与 if 的区5.考名性从句中的疑+ever 引的名性从句与no matter+ 疑引的状从句的区6.考名性从句的虚气法重点解析一、名性从句主从句、表从句、从句、同位从句,在整个句子中所起的作用,相当于一个名。
所以,四种从句通称名性从句。
引名性从句的接可分三:接: that, whether, if(不充任从句的任何成分)接代: what, whatever, who, whoever, whom, whose, which.接副: when, where, how, why1.主从句作句子主的从句叫主从句。
主从句往常由附属that ,whether ,if和接代what ,who,which ,whatever , whoever 以及接副 how, when, where, why 等引。
that 在句中无,只起接作用;接代和接副在句中既保存自己的疑含、又起接作用,在从句中充任从句的成分。
比如:What he wants to tell us is not clear.他要跟我什么,不清楚。
It is known to us how he became a writer.我都知道他是如何成一名作家的。
Where the English evening will be held has not yet been announced.英晚会将在哪里行,没有宣告。
有防止句子重脚,常用形式主it取代主从句作形式主放于句首,而把主从句置于句末。
主从句后的一般用数形式。
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subject clause
宾语从句
名词性从句 noun clause
object clause
表语从句
predicative clause
同位语从句
appositive clause
请判断出下列的句子属于哪种从句 What I want to do is taking a bath. (主从) The news that they won the game spread the whole school. (同位语从句) I don’t think he is an honest boy. (宾从) The fact is that he stole the car. (表从) Do you know the fact that he stole the car? (同位语从句) Do you know the man who is standing over there? (定从) It is said that they won the game. (主从)
Exercises: “it”作形式主语或形式宾语:
A 1.I hate ____ when people talk with their mouths full. A. it B. that C. these D. them B 2. I feel ____ strange that he should be so careless. A. / B. it C. that D. how B 3. It worried her a bit ____ her hair was turning grey. A.while B. that C.if D.for 4 Will you see to ____ that the luggage is brought back? C A. we B. yourself C. it D. them
1.It + be + 形容词 + that从句
It is necessary / important/ obvious that…
It is believed that… 人们相信… It is known to us all that …. 众所周知… It has been decided that…… 已经决定……
引导名词性从句的连接词:
that(无意义,不可省,不充当任何
成分) whether, if(均表示“是否”表明从 句内容的不确定性) as if ,as though(均表示“好像”, “似乎”) 以上在从句中均不充当任何成分
连接代词:what,
whatever, who, whoever, whom, whomever, whose, which, whichever 连接副词:when, where, how, why, whenever, wherever, however 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
表语从句 在复合句中作主句的表语.引导表语从句的关 联词与引导主语从句的关联词大致一样
1.问题是我们和他已失去联系.
The problem is_________________________________ that we have lost touch with him.
2.这就是亨利怎么解决这个问题的.
4.It + 不及物动词 + that从句
另注意在主语从句中用来表示惊奇、
不相信、惋惜、理应如此等语气时, 谓语动词要用 虚拟语气 “(should) +do”,常用的句型有: It is necessary (important, natural, strange, etc.) that … It is suggested (requested, proposed, desired, etc.) that…
宾语从句
宾语从句就是在复合句中作宾语的 名词性从句,通常放在主句谓语动词 (及物动词) 或介词之后。
1.She did not know what had happened.
(作动词的宾语) 2. Our
success depends upon how well we can cooperate with one another. (作介词的宾语)
1.That he is a famous singer is known to us. (It is known to us that he is a famous singer.) 2.When he will go to America is not yet fixed. (It is not yet fixed when he will go to America.)
用whether或if引导的宾语从句, 其主语和谓语的顺序也不能颠倒, 仍保持陈述句语序。此外, whether与if 在作“是否”的意思 讲时在下列情况下一般只能用 whether,不用if: a. 引导主语从句并在句首时;b. 引导表语从句时;c . 引导从句作 介词宾语时;d. 从句后有“or not” 时;e. 后接动词不定式时。
1.
注意:在demand,order,suggest,
decide,insist, desire, request, command, doubt等表示要求、命令、 建议、决定等意义的动词后,宾语从 句常用“(should)+ 动词原形”。 I insist that she (should) do her work alone. 我坚持要她自己工作。 The commander ordered that troops (should) set off at once. 司令 员命令部队马上出发。
This is____________________________. how Henry solved the problem.
我认为他不会来这里. I think he won’t come here. I don’t think he will come here.
( (
) )
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。例如: I know (that) he studies English every day. I know (that) he studied English last term. I know (that) he will study English next year. I know (that) he has studied English since 1998.
2.It + be + -ed分词 + that从句
3.It + be + 名词 + that从句
It is common knowledge that… …是常识 It is a surprise that …. 令人惊奇的是… It is a fact that…… 事实是…… It appears that… 似乎… It happens that …. 碰巧… It occurred to me that…… 我突然想起……
4.
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。例如: The teacher told us that Tom had left us for America.
不可省略的连词:
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.
1.
主语从句
在复合句中作主语的从句.引导词有连 词that,whether; 代词:who, what ,which;副词:when ,where, how, why等.
Exercises
1_________ in the regulations that you should not tell other people the pass word of your e-mail account. .(2005 上海) A. What is required B .What requires C It is required D. It requires 2. The Foreign Minister said, “_______ our hope that the two sides will work towards peace.” (2006 北京) A. This B. There is C .That is D. It is 3.After Yang Liwei succeeded in circling the earth,_______ our astronauts desire to do is walk in space.(2004 上海) A .where B .what C .that D. how
宾语从句中用it作形式宾语
注意:如果主句中有形容词或名词作宾语补足 语时,一般用it来作形式宾语,把从句放在宾 补后面。 We think it our duty that we should help others. 我发现他两天之内完成工作是不可能的.
I find it impossible that he can finish the work in two days.
注意
主语从句中的“主谓一致”:
1.主语从句通常被看作一个整体,主句的谓语动词用单数 形式.