语法讲解:名词性从句

合集下载

名词从句讲解

名词从句讲解

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。

三、类型根据它在句中不同的语法功能,名词性从句又可分为:1.主语从句2.宾语从句3.表语从句4.同位语从句四、特点:名词性从句的特点是从句都有关联词引导,从句的语序是陈述句语序。

五、连词(1)连接词:that /Whether/if:不充当从句的任何成分(2)连接代词:Who/whoever/Whom/whomever/whose /What/whatever /Which/whichever既起连接一个句子的作用,同时在从句担当主语、宾语,表语。

(3)连接副词:Why/where/when /how:既起连接作用,又在从句中作状语六、名词性从句引导词的用法:1.that无具体意思,在从句中也不充当任何语法成分,只起连接作用2.whether意为“是否”,在从句中不充当任何语法成分;引导及物动词的宾语从句时可与if互换;引导介词的宾语从句或引导主语、表语、同位语从句时,只用whether。

3. who意为“谁”,在从句中作主语。

4. whom意为“谁”,在从句中作宾语,但在口语中常用who代替whom。

5. whoever(=anyone who)意为“凡是……的人”,它的宾格形式是whomever (但在口语中常用whoever代替whomever)。

6. whose意为“谁的”,在从句中作定语。

7. what意为“什么”;whatever(=anything+that)意为“凡是……的物”。

what 和whatever都可在从句中作主语、表语、宾语。

8. which意为“哪一个;哪些”;whichever意为“无论哪一个都”。

which 和whichever都可在从句中作主语、宾语、表语。

9. where意为“在哪儿”,在从句中作地点状语;when意为“什么时候”,在从句中作时间状语;how意为“如何”,在从句中作方式状语;why意为“为什么”,在从句中作原因状语。

高中语法讲解—名词性从句

高中语法讲解—名词性从句

名词性从句1.从句的分类状语从句(分9种)从句主语从句名词性从句宾语从句表语从句同位语从句2.说明:①名词性从句的功能相当于名词,根据其在句中充当的成份,有不同的叫法。

②引导名词性从句的词语主要有:a.从属连词that,无词义,不作句子成分;b.从属连词if,whether(是否)有词义,但不作句子成分;c.从属连词as if(=as though,似乎、好像)有词义,但不作句子成分;d.连接代词who,whoever,what,whatever,whom,whomever,which,whichever,how much,how many有词义,作成分;e.连接副词when,whenever,where,wherever,why,how,however,how often,how soon,how far,how long作句子成分。

③在名词性从句中,要用陈述语序。

【例】1.I don’t kno w where does he live.(false)I don’t know where he lives.(true) 我不知道他住在哪。

2.What life in the future will be like is unknown.(true)What will life in the future be is unknown.(false)④不可用no matter who,no matter what等引导名词性从句,只能引导状语从句。

一、主语从句1.定义:若处在主语的位置上是个句子,那么这个句子就叫做主语从句。

2.注意事项:a.在主语从句中,任何引导词都不可以省去。

【例】That her hair is turning grey worries her.b.在主语从句中,不用if,用whether。

【例】Whether he will come or not is not clear.(true)If he will or not is not clear.(false)c.主语从句作主语时,谓语动词用单数。

语法解析名词性从句

语法解析名词性从句

语法解析名词性从句一、概念说明名词性从句是从句的一种,它在句中的地位和作用相当于名词。

名词性从句可以充当主语、宾语、表语或同位语。

二、主语从句主语从句用来充当整个句子的主语。

示例:1. What she said is true.(主语从句作主语)2. Whether he will come is uncertain.(主语从句作主语)3. If it rains, we will stay at home.(主语从句作主语)三、宾语从句宾语从句用来充当及物动词或介词后面的宾语。

示例:1. She asked me what my name was.(宾语从句作宾语)2. I wonder if he is coming.(宾语从句作宾语)3. He told me where he lived.(宾语从句作宾语)四、表语从句表语从句用来充当系动词后面的表语。

示例:1. The important thing is that we keep trying.(表语从句作表语)2. His wish is that everyone be happy.(表语从句作表语)3. Her dream is to become a famous singer.(表语从句作表语)五、同位语从句同位语从句用来解释或说明名词的具体内容。

示例:1. The fact that he didn't study resulted in a poor grade.(同位语从句解释the fact)2. My understanding is that we need to work together.(同位语从句解释my understanding)3. The idea that she suggested is worth considering.(同位语从句解释the idea)六、关系代词引导的名词性从句关系代词引导的名词性从句在从句中充当成分的同时,引导词也在主句中充当成分。

名词性从句知识点

名词性从句知识点

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。

英语语法与词汇详解 名词性从句

英语语法与词汇详解 名词性从句

英语语法与词汇详解名词性从句一、什么是名词性从句?①在句子中起名词作用的句子叫名词性从句。

②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。

③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。

二、主语从句①作句子主语的从句叫主语从句。

②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。

③that在句中无词义,只起连接作用,但不可省略④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。

⑤例句:->What he wants to tell us is not clear.[他要跟我们说什么还不清楚。

]->Who will win the match is still unknown.[谁能赢得这场比赛还不得而知。

]->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。

]为避免句子头重脚轻,常用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。

常用句型有:->It+be+名词+that从句->It+be+形容词+that从句->It+be+动词的过去分词+that从句->It+不及物动词+that从句三、宾语从句①用作宾语的从句叫宾语从句。

②引导宾语从句的关联词与引导主语从句和表语从句的关联词大致一样,在句中可以作谓语动词或介词及非谓语动词的宾语。

③由连接词that引导宾语从句时,that在句中不担任任何成分,在口语或非正式的文体中常被省去,但如从句是并列句时,第二个分句前的that不可省。

【英语知识点】名词性从句语法总结归纳

【英语知识点】名词性从句语法总结归纳

【英语知识点】名词性从句语法总结归纳名词性从句是在句子中起名词作用的句子。

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。

接下来分享名词性从句的语法,供参考。

1.主语从句通常由下列词引导:①从属连词that、whether等。

②连接代词what、who、which、whatever、whoever、whom、whichever等。

③连接副词how、when、where、why等。

that在句中无词义,只起连接作用;连接代词和连接副词都在句中既保留自己的疑问含义、又起连接作用,连接代词主要作主语,宾语,表语,定语等,连接副词在从句中作状语。

注:whom、who指人,what指物,whatever、whoever表示泛指意义。

2.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:It's a great pity that they didn't getmarried.他们没能结婚,真是令人惋惜。

(2)It be+形容词+that从句:It's splendid that you passed yourexam.你通过考试了,真棒。

(3)It be+动词的过去分词+主语从句:It's said that he has been there many times.据说他去过那儿很多次。

(4)It+不及物动词+that 从句:It is suggested (requested, proposed, desired, etc.) that…。

1.宾语从句,是名词性从句的一种。

在主从复合句中充当宾语,位于及物动词、介词或复合谓语之后的从句称为宾语从句。

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。

2.宾语从句的引导词有三种:(1)以that引导的宾语从句:that引导的宾语从句一般都是由陈述句充当,引导词that没有实际意义,不在从句中作任何成分,that可以省略,而且从句成分齐全,句意完整。

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.

名词性从句英语语法知识点汇总

名词性从句英语语法知识点汇总

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。

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

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,名词性从句厅分为主语从句、表语从句、宾语从句和同位从句。

(一)引导名词性从句的连接词1、连接代词:who, whose, whom, what, which。

有词义,在从句中担任成分,如主语、表语、宾语、或定语等。

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。

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

不可省略的连词:a. 介词后的连词b. 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:a. whether引导主语从句并在句首b. 引导表语从句c. whether从句作介词宾语d. 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)主语从句1、主语从句在复合句作主语。

e.g. Who will go is not important.2、用it作形式主语,主语从句放在句末。

e.g. It doesn’t matter so much whether you will come or not.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 knowledge 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……3、that引导主语从句时,不能省略。

e.g. That he suddenly fell ill last week made us surprised.注: 1)what = the thing which;whatever = anythingWhat you want has been sent here.Whatever you want makes no difference to me.2) who= the person that whoever= anyone who(错)Who breaks the law will be punished.(错)Whoever robbed the bank is not clear.(对)Whoever breaks the law will be punished.(对)Who robbed the bank is not clear.(三)表语从句1、表语从句在复合句中作表语,位于系动词之后。

e.g. The question was who could go there.2、引导表语从句的连接词that有时可省去。

e.g. My idea is (that) we can get more comrades to help in the work.(四)宾语从句1、宾语从句在复合句中作宾语。

引导宾语从句的连词that一般可省略。

e.g. I hope (that) everything is all right.2、介词之后的宾语从句,不可用which或if连接,要分别用what或whether。

e.g. I’m interested in whether you’ve finished the work..I’m interested in what you’ve said.3、whether与if都可以引导宾语从句,常可互换。

但下面情况不能互换。

①宾语从句是否定句时,只用if,不用whether。

e.g. I wonder if it doesn’t rain.②用if 会引起误解,就要用whether。

e.g. Please let me know whether you want to go.(此句如果把whether改成if,容易当成条件句理解)③宾语从句中的whether 与or not直接连用,就不能换成if;不直接连用,可换。

e.g. I don’t know whether or not the report is true.I don’t know whether/ if the report is true or not.④介词后的宾语从句要用whether引导。

whether 可与不定式连用。

whether也可引导主语从句、表语从句、同位语从句,还可引导让步状语从句,以上均不能换成if。

但引导条件从句时,只能用if,而不能用whether。

e.g. It depends on whether we have enough time.They don’t know whether to go there.Please come to see me if you have time.(五)同位语从句同位语从句在句中作某一名词的同位语,一般位于该名词(如:news, fact, idea, suggestion, promise等)之后,说明该名词的具体内容。

e.g. I have no idea when he will be back.The fact that he had not said anything surprised everybody.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。

相关文档
最新文档