高中英语名词性从句详细讲解
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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。
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。
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。