32种语法——名词性从句
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名词性从句语法英语语法--名词性从句讲解(一)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1. 连接代词:who, whose, whom, what, which.有词义,在从句中担任成分。
2. 连接副词:when, where, why, how.有词义,在从句中担任成分,作状语。
3. 连接词:that, whether, if, as if在从句中不担任成分,有时可省略;二. 具体分类1、主语从句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。
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。
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。
主语从句后的谓语动词一般用单数形式。
常用句型如下:(1)It + be + 名词 + that从句(2)It + be + 形容词 + that从句(3)It + be + 动词的过去分词 + that从句(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 a pity (a shame, no wonder, etc.) that…It is suggested (requested, proposed, desired, etc.) that…2、宾语从句名词句用作宾语的从句叫宾语从句。
名词性从句专题讲解一、复习句子成分二、句子种类简单句、并列句、复合句(三大从句)一、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)。
1)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。
2)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。
主语从句What he wants to tell us is not clear.宾语从句He has told me that he will go to Shanghai tomorrow.名词性从句表语从句The fact is that we have lost the game.同位语从句I have no idea when he will come back home.1. 这里重点强调一下同位语从句,顾名思义,所谓同位语从句就是一个句子与主句中某一个名词互为同位语!那么什么是同位语呢,很简单就是相同地位,相同成分,平起平坐,A(名词)=B(从句), B(从句)=A(名词), 去掉任何一部分(A/B)对整个句子都不影响。
2. 而且与从句互为同位语的名词一般为抽象名词,例如:advice、demand、doubt、fact、hope、idea、information、message、news、order、problem、promise、question、request、suggestion、truth、wish、word等。
二、引导名词性从句的连接词1.引导名词性从句的连接词可分为三类:1.连词:that(无任何词意)whether, if(均表示“是否”)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2. 连接代词:what, whatever, who, whoever, whom, whose, whichever, whomever3. 连接副词:when, where, how, why, how many, how much, how often2. 连接词的判定:根据连接词在从句中所做的不同的成分,我们可以归纳如下:人物主语:who what宾语:whom what名词性从句表语:whom what定语:which what whose状语:when where why how (how many, how much, how often)不做成份:that if/whether as if /as though互动精讲【知识梳理1】宾语从句(一)宾语从句简介用作宾语的从句叫做宾语从句。
(完整版)名词性从句知识点总结名词性从句知识点总结名词性从句是指在复合句中充当名词的从句。
它可以在句子中充当主语、宾语、表语或同位语。
以下是名词性从句的几个重要知识点:主语从句主语从句在句子中充当主语的角色。
它引导的从句通常由关联词that引导,但有时可以省略。
例如:- That he stole the money is a fact.宾语从句宾语从句在句子中充当宾语的角色。
它通常由关联词that引导,但也可以由其他关联词如whether, if, who, whom等引导。
例如:- She asked me if I had finished my homework.if I had finished my homework.- I wonder whether he will pass the exam.whether he will pass the exam.表语从句表语从句在句子中充当表语的角色。
表语从句通常由关联词that引导,但有时也可以由其他关联词如whether, if, what等引导。
例如:- His biggest concern is that he might lose his job.that he might lose his job.- The question is what we should do next.what we should do next.同位语从句同位语从句在句子中充当同位语的角色,用来解释或说明名词的具体内容。
同位语从句通常由关联词that引导,但也可以由其他关联词如whether, if等引导。
例如:- The fact that he lied to us is very disappointing.that he lied to us is very disappointing.- My hope is that we can find a solution to the problem.that we can find a solution to the problem.以上是名词性从句的一些常见知识点总结。
名词性从句知识点在英语语法中,名词性从句是一个重要且复杂的部分。
它在句子中起着名词的作用,包括主语从句、宾语从句、表语从句和同位语从句。
接下来,让我们逐一深入了解。
一、主语从句主语从句即在句子中充当主语的从句。
例如,“What he said is true”(他说的是真的。
)在这个句子中,“What he said”就是主语从句。
引导主语从句的连接词主要有三类:1、从属连词:that、whetherThat he will come is certain (他会来是肯定的。
)这里的“that”在从句中不充当成分,只起引导作用。
Whether she will go there is not decided (她是否会去那里还没决定。
)“whether”表示“是否”。
2、连接代词:what、who、which、whose、whatever、whichever、whoever 等What you need is more practice (你需要的是更多的练习。
)“what”在从句中充当宾语。
3、连接副词:when、where、why、how 等When the meeting will be held has not been announced (会议何时举行还未宣布。
)需要注意的是,主语从句后置时,常用 it 作形式主语,而将真正的主语从句放在后面。
例如:It is unknown whether he will come (他是否会来还不知道。
)二、宾语从句宾语从句在句中充当宾语。
比如,“I know that he is a student”(我知道他是个学生。
)“that he is a student”就是宾语从句。
引导宾语从句的连接词与主语从句类似:1、从属连词:that(在口语或非正式文体中常省略)、whether、ifHe said (that) he was busyI wonder if/whether he will come2、连接代词:what、who、which、whose、whatever、whichever、whoever 等She asked me what I was doing3、连接副词:when、where、why、how 等Could you tell me how I can get there?宾语从句的时态要根据主句的时态来变化。
托福写作常用句型技法:名词性从句在托福写作中运用一些从句可以为我们的文章加分,为了帮助大家备考,下面小编给大家带来托福写作常用句型技法:名词性从句。
托福写作常用句型技法:名词性从句托福写作常用名词性从句一:主语从句最常见的主语从句形式莫过于以that从句为主语、it为形式主语的倒装结构,进一步又可细分为以下两种:1. It is + adj. + that...这种结构常翻译为“……的是”,用于强调表达某种客观事实。
It is undeniable that opportunities and choices could sometimes make all the difference in a person's life.不可否认的是,有时在一个人的人生中,机遇和选择能够扭转乾坤。
It is unanvoidable that the rapid progress of industry leads to severe pollution.工业的迅速发展不可避免的导致严重污染。
It is unquestionable that schooling plays an essential role in children's personal development.毋庸置疑,学校教育在孩子们的个人发展中起到了至关重要的作用。
2. It is + v.-ed + that...这种结构常翻译为“人们/有人……”,用于表达某种有代表性的主观观点。
It is assumed that education should start as early as possible.有人设想,教育应当尽可能早地开始。
It is generally held that robots are more effecient than human labors.众所周知的是,机器人比人工更有效率。
It is reported that the temperature will decline sharply in oneor two days.据报道,近日气温将明显下降。
名词性从句的三种类型及例句解析名词性从句是指在一个句子中充当名词的从句。
它可以作主语、宾语、表语和同位语等,并能够起到连接子句与主句的作用。
在英语语法中,有三种主要类型的名词性从句:宾语从句、主语从句和表语从句。
本文将详细解析这三种类型,并举例说明其用法。
一、宾语从句宾语从句作为一个整体出现在主句中的动词后面,充当主句的宾语。
它常常引导由that、whether/if、wh-疑问词引导的从句。
下面是一些例句:1. 主句:He asked me a question.宾语从句:He asked me whether I had finished my homework.解析:宾语从句"whether I had finished my homework"作为动词"ask"的宾语,表达了一个疑问。
2. 主句:She doesn't know the answer.宾语从句:She doesn't know what the answer is.解析:宾语从句"what the answer is"作为动词"know"的宾语,表示对答案的不知道。
3. 主句:They wonder if he will come to the party.宾语从句:They wonder if/whether he will come to the party.解析:宾语从句"if/whether he will come to the party"作为动词"wonder"的宾语,表达了对他是否会来参加派对的疑问。
二、主语从句主语从句作为一个整体出现在句子的最前面,充当主句的主语。
它通常由that引导,也可以由wh-疑问词引导。
以下是一些例句:1. 主句:It is important to learn a foreign language.主语从句:That she is a hardworking student is important.解析:主语从句"That she is a hardworking student"作为句子的主语,强调了她是一个勤奋的学生的重要性。
名词性从句英语语法知识点汇总名词性从句是在句子中起名词作用的句子。
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。
下面就是小编给大家带来的名词性从句英语语法知识点汇总,希望大家喜欢!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.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。
宾语:John said that he was leaving for London on Wednesday. 约翰说他星期三要到伦敦去。
名词性从句精讲在复合句中起名词作用的从句叫名词性从句,包括作主语从句、表语从句、宾语从句和同位语从句。
(1)主语从句就是在复合句中作主语的从句。
主语从句常用that, whether, who, whom, whose, what, which, when, where, how, why, whatever, whoever等引导。
如:Whether he will be able to come remains a question. 他是否来还是问题。
That China is a great socialist country is well known. 众所周知,中国是一个伟大的社会主义国家。
注:为避免头重脚轻,使句子平衡,常用it作形式主语,而将主语从句后置。
如上述第二例常说成:It is well known that China is a great socialist country.但是,由连接代词what, whatever, whoever等引导的主语从句一般不能用形式主语。
如:What he found surprised me greatly. 他的发现使我非常吃惊。
Whoever is finished may rest. 凡是做完工的人都可以休息。
(2)表语从句就是在连系动词之后作表语的从句。
引导表语从句的连接除与引导主语从句的连接词外,还有as if,as though。
如:The question is whether he is able to do it alone. 问题是他能否单独做这件事。
It looks as if (though) it is going to snow. 天好像要下雪似的。
注意:要区分以下句式:1. that’s why+结果;that’s because+原因。
2. the reason why /for…is that…He is absent. That’s because he is ill. 他缺席,这是因为他生病了。
完整版)名词性从句用法归纳名词性从句是指在句子中作名词角色的句子,可以充当主语、宾语、表语、同位语、介词宾语等。
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。
引导名词性从句的连接词可以分为三类。
第一类是从属连词,包括that、whether和if。
在宾语从句或表语从句中,that 有时可以省略。
第二类是连接代词,包括what、who、which 等。
这些代词在从句中做成分,不可以省略。
第三类是连接副词,如when、where、how等,也不可以省略。
在一些情况下,that可以省略,如定语从句中做宾语、引导宾语从句或表语从句时。
但在定语从句中做主语、由that引导同位语从句时,以及宾语从句中真正的that不可以省略的情况下,that不能省略。
主语从句是指作句子主语的从句。
主语从句通常由从属连词that、whether等,连接代词what、who、which等,以及连接副词how、when、where等引导。
2、连接词的使用:连接词在句子中起到连接的作用,其中that在句子中没有实际的意义,只是起到连接从句和主句的作用。
而连接代词和连接副词则在句子中既保留了自己的疑问含义,又起到连接从句和主句的作用,同时在从句中充当从句的成分。
例如,whom和who指人,what指物,而XXX和whoever则表示泛指意义。
举个例子,What he wants to tell us is not clear.表示他想告诉我们什么并不清楚。
另外,为了避免句子头重脚轻的情况,有时我们会用形式主语it代替主语从句,并将主语从句放在句末。
这种情况下,主语从句后的谓语动词一般使用单数形式。
常用的句型有:(1)It + be +名词+ that从句,如It is a fact that(事实是);(2)It + be +动词的过去分词+ that从句,如It is said that(据说);(3)It +不及物动词(vi)+ that从句,如It seems that (似乎);(4)It + be +形容词+ that从句,如It is naturalthat(很自然)。
17. 名词性从句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。
17.1 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.17.2 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。
宾语:John said that he was leaving for London on Wednesday.约翰说他星期三要到伦敦去。
表语:The fact is that he has not been seen recently.事实是近来谁也没有见过他。
同位语:The fact that he has not been seen recently disturbs everyone in his office.近来谁也没有见过他,这一事实令办公室所有的人不安。
形容词宾语:I am glad that you are satisfied with your job.你对工作满意我感到很高兴。
2)That-从句作主语通常用it作先行词,而将that-从句置于句末,例如:It is quite clear that the whole project is doomed to failure.很清楚,整个计划注定要失败。
It's a pity that you should have to leave.你非走不可真是件憾事。
用it作形式主语的that-从句有以下四种不同的搭配关系:a. It + be +形容词+ that-从句It is necessary that…有必要……It is important that…重要的是……It is obvious that…很明显……b. It + be + -ed 分词+ that-从句It is believed that…人们相信……It is known to all that…从所周知……It has been decided that…已决定……c. It + be +名词+ that-从句It is common knowl edge that………是常识It is a surprise that…令人惊奇的是……It is a fact that…事实是……d. It +不及物动词+ that-分句It appears that…似乎……It happens that…碰巧……It occurred to me that…我突然想起……17.3 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, whoever, what, whatever, which, whichever等连接代词和where, when, how, why等连接副词。
Wh-从句的语法功能除了和that-从句一样外,还可充当介词宾语、宾语补语和间接宾语等,例如:主语:How the book will sell depends on its author.书销售如何取决于作者本人。
直接宾语:In one's own home one can do what one likes.在自己家里可以随心所欲。
间接宾语:The club will give whoever wins a prize.俱乐部将给得胜者设奖。
表语:My question is who will take over president of the Foundation.我的问题是谁将接任该基金会主席职位。
宾语补足语:She will name him whatever she wants to. 她高兴给他起什么名字就取什么名字。
同位语:I have no idea when he will return.我不知道他什么时候回来。
形容词宾语:I'm not sure why she refused their invitation.我尚不能肯定她为什么拒绝他们的邀请。
介词宾语:That depends on where we shall go.那取决于我们去哪儿。
2)Wh-从句作主语也常用先行词it做形式主语,而将wh-从句置于句末,例如:It is not yet decided who will do that job.还没决定谁做这项工作。
It remains unknown when they are going to get married.他们何时结婚依然不明。
17.4 if, whether引导的名词从句1)yes-no型疑问从句从属连词if, whether引导的名词从句是由一般疑问句或选择疑问转化而来的,因此也分别被称为yes-no型疑问句从句和选择型疑问从句,其功能和wh-从句的功能相同,例如:主语:Whether the plan is feasible remains to be proved. 这一计划是否可行还有等证实。
宾语:Let us know whether / if you can finish the article before Friday.请让我们知道你是否能在星期五以前把文章写完。
表语:The point is whether we should lend him the money.问题在于我们是否应该借钱给他。
同位语:They are investigating the question whether the man is trustworthy.他们调查他是否值得信赖。
形容词宾语:She's doubtful whether we shall be able to come.她怀疑我们是否能够前来。
介词宾语:I worry about whether he can pass through the crisis of his illness.我担心他是否能度过疾病的危险期。
2)选择性疑问从句选择性疑问从句由关联词if/whether…or或whethe…or not构成,例如:Please tell me whether / if they are Swedish or Danish. 请告诉我他们是瑞典人还是丹麦人。
I don't care whether you like the plan or not.我不在乎你是否喜欢该计划。
17.5 否定转移1) 将think, believe, suppose, expect, fancy, imagine等动词后面宾语从句的否定词转移到主句中,即主句的谓语动词用否定式,而从句的谓语动词用肯定式。
I don't think I know you.我想我并不认识你。
I don' t believe he will come.我相信他不回来。
注意:若谓语动词为hope,宾语从句中的否定词不能转移。
I hope you weren't ill. 我想你没有生病吧。
2) 将seem, appear 等后的从句的否定转移到前面。
It doesn't seem that they know where to go.看来他们不知道往哪去。
It doesn't appear that we'll have a sunny day tomorrow.看来我们明天不会碰上好天气。
3) 有时将动名词,介词短语或整个从句的否定转变为对谓语动词的否定。
I don't remember having ever seen such a man.我记得从未见过这样一个人。
(not否定动名词短语having…)It's not a place where anyone would expect to see strange characters on the street.在这里,人们不会想到在街上会碰上陌生的人。
(anyone 作主语,从句中的谓语动词不能用否定形式。
)4) 有时状语或状语从句中否定可以转移到谓语动词前。
The ant is not gathering this for itself alone.(否定状语)蚂蚁不只是为自己采食。
He was not ready to believe something just because Aristotle said so. (否定because 状语) 他并不因亚里斯多德说过如何如何,就轻信此事。
She had not been married many weeks when that man's younger brother saw her and was struck by her beauty.(否定状语many weeks)她结婚还不到几个月,这个人的弟弟就看见她了,并对她的美貌着了迷。