重新理解----名词性从句

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【语法讲解】高中英语--名词性从句专题讲解(详细)

【语法讲解】高中英语--名词性从句专题讲解(详细)
Idon’t think (that) there will be time to do it.
Manypeoplebelievethatrobotswilldo most of our work.
whether/if引导的宾语从句
1)可用whether/if的情况
whether/if常放在ask, care, wonder, find out等后引导宾语从句。whether/if在从句中不作成分,但是有“是否”含义,不可省略。
It occurred to me that we should get in touch with the manager.
whether/if引导的主语从句
whether引导的主语从句即可以放在句首,也可以放在句末,但if引导的主语从句只能放在句末,前面需用it作形式主语。whether,if只起连句中不作成分,且不可省略。
Iaskedthem whether/if they would win the match.
Do you care whether/if you win?
2)只用whether不用if的情况
引导介词后的宾语从句时。
Itdepends on whether it will snow tomorrow.
Wedoubt whether he will keep his promise.
宾语从句前置,置于句首时。
Whetherthey can come here on time, we don’t know.
连接代词或连接副词引导的主语从句
1)连接代词what, who, whom, , whose, which , whatever, whoever, whichever等在从句中作主语、宾语、表语、定语,不可以省略。

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。

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。

名词性从句解读

名词性从句解读

名词性从句解读名词性从句是英语语法中的一种重要结构,它在句子中担任名词的作用。

在本文中,我们将探讨名词性从句的概念、分类以及使用方法,帮助读者更好地理解和运用名词性从句。

一、名词性从句的概念名词性从句,顾名思义,是指在句子中可以担任名词功能的从句。

它与名词一样,可以在句子中作主语、宾语、表语、同位语等。

名词性从句主要有三种类型:主语从句、宾语从句和表语从句。

1. 主语从句主语从句在句子中作主语,常由连接词“that”引导。

例如:- That he is late makes me angry.(他迟到了让我生气。

)- Whether she can come is still uncertain.(她能否来还不确定。

)2. 宾语从句宾语从句在句子中作及物动词的宾语,常由引导词“that”或“whether/if”引导。

例如:- He asked whether/if I could help him.(他问我能否帮他。

)- I believe that he will succeed.(我相信他会成功。

)3. 表语从句表语从句在句子中作表语,常由引导词“that”或“whether/if”引导。

例如:- The problem is that we don't have enough time.(问题在于我们没有足够的时间。

)- My concern is whether/if he understands the importance of this project.(我的担忧是他是否理解这个项目的重要性。

)二、名词性从句的使用方法名词性从句可以使句子更加丰富、灵活,同时也能够避免重复使用某些词语。

以下是使用名词性从句的一些常见方法:1. 引导词的选择名词性从句的引导词有很多,如“that”、“whether/if”、“what”、“who”、“why”等。

在选择引导词时,需要根据具体语境和从句的功能来确定。

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。

初中英语中的名词性从句详解

初中英语中的名词性从句详解

初中英语中的名词性从句详解名词性从句是英语语法中的一个重要部分,它在句子中充当名词的角色。

初中英语中,名词性从句的使用非常广泛,掌握好名词性从句的用法,对于学生来说至关重要。

本文将详细解析初中英语中的名词性从句。

一、什么是名词性从句名词性从句是由一个引导词引导的从句,它在句子中充当名词的角色。

常见的引导词有that, whether, if, who, what, which, when, where, why等。

名词性从句可以充当主语、宾语、表语或同位语,起到连接句子成分的作用。

二、名词性从句的主要类型1. 主语从句主语从句在句子中充当主语的角色,常以that, whether, if, who, what, which, when, where, why等引导。

例如:- Whether we should go on a trip is still under discussion.- What she said is very important.- That he is late again is really annoying.2. 宾语从句宾语从句在句子中充当宾语的角色,常以that, whether, if, who, what, which, when, where, why等引导。

例如:- He asked me if I had finished my homework.- I don't know where she lives.- Can you tell me what time it is?3. 表语从句表语从句在句子中充当表语的角色,常以that, whether, if, who, what, which, when, where, why等引导。

例如:- The problem is whether we can solve it.- His dream is to become a famous singer.- The question is who will be the winner.4. 同位语从句同位语从句在句子中充当同位语的角色,常以that, whether, if, who, what, which, when, where, why等引导。

中考英语--名词性从句精讲

中考英语--名词性从句精讲

中考英语--名词性从句精讲从句是相对于主句而言的,即它是从属于某一个主句,而不能单独作一个句子。

在英语中,主要有三大从句,即名词性从句(包括主语从句,宾语从句,表语从句,同位语从句)、形容词性从句(即定语从句)、副词性从句(即状语从句,包括时间、条件、结果、目的、原因、让步、地点、方式等)。

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。

引导名词性从句的连接词可分为三类:(1)从属连接:that, whether, if(不充当从句的任何成分)(2)连接代词:what, whatever, who, whoever, whom, whose, which.(3)连接副词:when, where, how, why名词性从句的分类名词性从句,包括四种从句,即主语从句、宾语从句、表语从句、同位语从句。

因为主语、宾语、表语、同位语这四种成分均可以由名词构成,所以这四种从句在主句中都充当了名词的作用,故将这四种从句统称为名词性从句。

如:1.That she will help me made us happy.(主语从句)2.I can understand what he said.(宾语从句)3.This is where I was born.(表语从句)4.The fact that a heavy earthquake happened made me crazy.(同位语从句)名词性从句的连接词分类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, who, whoever, whom, whomever, whose, which, whichever.(在从句中做主语、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)连接词that 在名词性从句中可以省略的三种情况1.it 做形式主语,that引导主语从句时It is said (that) he has been studying abroad.据说他一直在国外学习。

名词性从句解析

名词性从句解析

名词性从句解析名词性从句是英语中一种重要的从句结构,它在句子中充当名词的成分。

名词性从句可以作为主语、宾语、表语和同位语,它的引导词包括连接代词和连接副词。

名词性从句可以帮助我们丰富句子结构,增强表达的准确性和多样性。

接下来,本文将对名词性从句进行详细解析,并给出一些例子来说明其用法。

一、名词性从句作主语名词性从句作主语时,常用的引导词有:that、whether、if、what、who、which等。

以下是几个例子:1. That he is innocent is beyond doubt.(他无辜是毫无疑问的。

)2. Whether he will come to the party is still uncertain.(他是否会来参加派对还不确定。

)3. If she can finish the work on time remains to be seen.(她能否按时完成工作还有待观察。

)4. What you said doesn't make any sense.(你说的话没有任何意义。

)5. Who will be the next president is under discussion.(谁将成为下一任总统正在讨论中。

)二、名词性从句作宾语名词性从句作宾语时,常用的引导词有:that、whether、if、what、who、which等。

以下是几个例子:1. He knows that I am telling the truth.(他知道我说的是真话。

)2. I'm not sure whether it will rain tomorrow.(我不确定明天是否会下雨。

)3. I wonder if he has received my email.(我想知道他是否收到了我的电子邮件。

)4. Please tell me what you want for dinner.(请告诉我你想要吃什么晚餐。

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名词性从句---主语从句,宾语从句,表语从句,同位语从句如题所示,名词性从句包括四种,即:主语从句,宾语从句,表语从句,同位语从句。

那么它们的本质究竟是什么呢?其实“名词性从句”这五个字已经很好的解释了一切,就是用一个句子(从句)充当另一个句子(主句)的名词性成分(主语,宾语,表语,同位语)。

要点:三种句子充当四种句子成分英语中大致有五类句子,包括陈述句,一般疑问句,特殊疑问句,感叹句,祈使句。

这五类句子中除了后两类,其他的三类都可以用来作从句,充当主句的名词性成分,即三种句子充当四种橘子成分。

名词性从句的学习既是围绕着这个要点学习的过程。

一.陈述句——She has a lot of money.上面已经说过,陈述句可以充当名词成分,用来表示一件事,可以做主语,宾语,表语,同位语。

但并不是直接将陈述句放在主,宾,表等相关位置,需要增加适当的成分,即在陈述句前面加上一个“指路牌”---that。

1.作主语——That she has a lot of money isn’t a secret.这句话表示的是:xxxxx isn’t a secret(xxxxx不是一个秘密),主语部分是she has a lot of money。

(她有许多钱,这并不是一个秘密。

)但是,要注意的是,she has a lot of money之前必须加上一个“指路牌”——that。

这里的that没有实际含义,完全是一个“摆设”,但却又是一个“必不可少”的摆设。

2.作宾语——I believe that she has a lot of money.翻译:我相信,她有很多钱。

这里的she has a lot of money.充当的是believe的宾语,同样的是,这里也有一个“指路牌”——that。

这里的俄that也没有实际含义,也是一个“摆设”,但与主语从句不同的是,这里有一些例外,后面将会讨论。

3.作表语——The face is that she has a lot of money.翻译:事实是,她有很多钱。

这里的she has a lot of money.作的是表语,用来补充说明这里的fact。

同样,这里还必须有一个that充当“指路牌”,that也没有实际含义,是一个必须的“摆设”。

4.作同位语——The fact that she has a lot of money embarrassed her.翻译:事实是她有很多钱,但却让她难堪。

这里的she has a lot of money.作fact的同位语,修饰fact。

同样that还是做指路牌,并没有实际意义,同样也是一个必须的“摆设”。

That English is important is an undoubted fact.That he doesn’t understand English is obvious.We know that the world is round.My idea is that child should be sent to school.The fact that he succeeded in the experiment pleased everybody.The rumor that Tom was a theif turned out to be untrue.通过以上的举例可以发现,陈述句充当句子的四种成分必须跟上一个“指路牌”——that。

That没有实际的含义,但要注意的是,在宾语从句中,这个“指路牌”可以省略。

也就是说,可以这么说:I believe she has a lot of money.但是,自己在造句的过程中,最好是将that带上。

注意:当陈述句作主语的时候,根据英语的尾重原则(先表态,后叙事原则)通常将that引导的主语从句后置,前面用形式主语it代替。

That English is important is an undoubted fact.往往被说成:It is an undoubted fact that English is important.It is an fact that the world is round.二.一般疑问句——Will she come to the party?众所周知,一般疑问句是用来问“是否”的句子,他也可以充当名词性成分,但必须进行一些变形和增加一些适当的成分。

变形指的是将疑问句语序变为正常语序,这里即将will she…变为she will …。

增加适当的成分是指在句首加上whether。

在这里改为:whether she will come to the party.1.作主语——Whether she will come to the party makes no difference .翻译:她来不来参加晚会,都无所谓。

这里whether she will come to the party作句子的主语部分。

2.作宾语——I don’t know whether she will come to the party.翻译:我不知道,他是否回来参加晚会。

这里whether she will come to the party做don’t know 的宾语。

3.作表语——The question is whether she will come to the party.翻译:问题是,(不知道)他是否会来参加晚会。

这里whether she will come to the party做句子的谓语部分,用来补充说明the question。

4.作同位语——I have no idea whether she will come to the party.翻译:我不知道,她是否会来参加晚会。

这里whether she will come to the party做idea的同位语,用来说明idea。

一般疑问句作主句的名词性成分是三类句子中需要对其动手术最多的,必须牢记。

补充:一般疑问句作宾语时,在除以下情况下可以用if来代替(注意,只有在一般疑问句作宾语的情况下)。

If不和or not 连用,即不说if or not,但可以说if……or not。

I don’t know if/whether he needs my help.My question is whether people will live on the moon someday.My concern is whether he comes or not.They are faced with the problem whether they should continue to work.三.特殊疑问句——What did he tell you ?特殊疑问句种类繁多,可以对物体,地点,原因,时间,方式等提问。

虽然种类繁多,但其变化特点却相当一致,即只要将特殊疑问句改成陈述句语序即可。

这里将what did he tell you 改为what he told you。

1.作主语——What he told you is true.翻译:他和你将的(一些事)都是真的。

这里what he told you作句子的主语。

2.作宾语——I don’t know what he told you.翻译:我不知道,他都告诉了你什么。

这里what he told you作don’t know的宾语。

3.作表语——This is what he told you.翻译:这就是他所告诉你的。

这里what he told you作句子的表语。

4.作同位语——I have no idea what he told you.翻译:我不知道他都和你说了些什么。

这里what he told you作的是idea的同位语。

用来补充idea。

When the meeting is to be held has not yet been decided.How a person masters his fate is more important than what his fate is.I have no decided whom I should vote for.No one knows exactly how speech began.Could you tell me where the post office is?We don’t know why he did not come yesterday.注意:如果是特殊疑问词作主语,无需调整句子的语序。

Who will chair the meeting?Who will chair the meeting has not yet been decided.练习:1.______________________is unimportant to me.(Do she come?)2.______________________remains uncertain.(Shall we have the match?)3.I wonder__________________.(Should we wait for him?)4.No one knows exactly_____________________________.(Is there life on other plants?)5.I am interested in the question________________________.(Will people live on themoon someday?)6.My question is______________________________.(Do we have enough time to go tothe movie?)7.Do you know_________________________________?(Does sound travel faster thanlight?)8.I don’t know____________________________ .(How old is he?)9.______________________________was interesting.(What was he talking about?)10.Do you know _____________________________?(What’s on TV tonigth?)11.Please tell me____________________________.(Where do you live?)12.I wonder______________________________. (Why did dinosaurs become extinct?)13._______________________________wasn’t true.(What did he tell you?)14.______________________________is true.(What did he tell you?)15._____________________________is still a mystery.(Why did they refuse to cooperatewith us?)16.Do you know____________________________________?(When are they coming?)17.I can’t remember____________________________.(Which book does he want?)18.Let’s ask him___________________________________.(Which book does he want?)19.I don’t know_________________________________ .(Who is coming to the party?)20.I don’t know________________________________.(Who are those people?)21.Do you know _______________________________?(Whose pen is this?)22.___________________________________is a secret.(Why did they leave the country?)23.__________________________________is none of your business.(Where did she go?)。

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