完整版)名词性从句用法归纳
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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。
名词性从句的用法名词性从句是在句子中充当名词的成分的从句。
名词性从句可以作为主语、宾语、表语或补语,常见的名词性从句有宾语从句、主语从句、表语从句和同位语从句。
1. 宾语从句(Object Clause):宾语从句在主句中充当宾语的角色。
一般引导宾语从句的词包括that, whether, if, why, how, when, where, who, whom 等。
示例:I don't know where he lives.(我不知道他住在哪里。
)2. 主语从句(Subject Clause):主语从句在句子中充当主语的角色。
常用的引导词有that, whether, if, what, who, which, where, how 等。
示例:What she said surprised me.(她说的话让我很惊讶。
)3. 表语从句(Predicate Nominative Clause):表语从句在句子中充当表语的角色。
一般由连词that 或whether 引导,也可以由who, whom, whose, which 等引导。
示例:His dream is that he can become a famous singer.(他的梦想是成为一名著名的歌手。
)4. 同位语从句(Appositive Clause):同位语从句用来解释、说明和限制先行词的意义。
它与先行词之间往往用连词that 或whether 连接。
示例:The news that he had won the prize made everyone happy.(他获奖的消息让大家都很高兴。
)。
(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。
语法中的名词性从句的引导词和用法在语法中,名词性从句是一个用作名词的句子。
它可以在句子中充当主语、宾语、表语或补语。
名词性从句的引导词起着连接名词性从句和主句的作用。
下面将介绍常见的名词性从句引导词及其用法。
一、引导名词性从句的关系词1.thatthat可以引导名词性从句作为主语、宾语、表语或补语。
例如:- 主语:That he is innocent is beyond doubt.(他是无辜的是毫无疑问的。
)- 宾语:I heard that he is innocent.(我听说他是无辜的。
)- 表语:The fact is that he is innocent.(事实就是他是无辜的。
)- 补语:My belief is that he is innocent.(我相信他是无辜的。
)2.whether/ifwhether和if在引导名词性从句时可以用作连接词,用法相同。
它们常引导一个引导词从句,用来表示“是否”,常用于宾语从句或主语从句的引导词。
例如:- 宾语:I don't know whether/if he will come.(我不知道他是否会来。
)- 主语:Whether/If it will rain tomorrow is uncertain.(明天是否会下雨还不确定。
)3.whowho可引导主语从句、宾语从句或表语从句。
它用来指代人。
例如:- 主语:Who will win the game is still unknown.(谁将获胜还不知道。
)- 宾语:I don't know who he is.(我不知道他是谁。
)- 表语:The winner depends on who plays better.(胜利者取决于谁打得更好。
)4.whatwhat可以引导主语从句、宾语从句或表语从句。
它用来指代事物或事实。
例如:- 主语:What she said surprised me.(她说的话让我感到惊讶。
名词性从句的用法解析在英语语法中,名词性从句是一个重要且常考的知识点。
它在句子中能起到名词的作用,包括主语从句、宾语从句、表语从句和同位语从句。
接下来,咱们就详细地聊聊这些名词性从句的用法。
一、主语从句主语从句就是在句子中充当主语的从句。
比如,“What he said is true”在这个句子中,“What he said”就是主语从句,整个句子表达的是“他说的话是真的”。
引导主语从句的连接词有很多,常见的有 that、whether、what、who、which、when、where、why、how 等。
需要注意的是,为了避免句子头重脚轻,常用 it 作形式主语,而把真正的主语从句放在句末。
例如,“It is important that we study hard”这里真正的主语是“that we study hard”,用 it 作形式主语让句子结构更平衡。
二、宾语从句宾语从句在句中充当宾语。
像“ I know that he is a good student”中,“that he is a good student”就是宾语从句,表明“我知道的内容是他是个好学生”。
宾语从句的引导词与主语从句类似,如 that、whether/if、what、who、which、when、where、why、how 等。
宾语从句的时态要根据主句的时态来变化。
一般情况下,如果主句是一般现在时,宾语从句可以根据实际情况用各种时态;如果主句是过去时,宾语从句通常要用相应的过去时态。
另外,宾语从句要用陈述句语序。
三、表语从句表语从句在句中充当表语。
比如说,“The problem is that I have no money” 这里的“that I have no money”就是表语从句,解释说明“问题”的具体内容是“我没钱”。
常见的引导词有 that、whether、as if / as though、because 等。
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。
名词性从句的用法名词性从句是从句的一种形式,可以在句中担任名词的角色。
在句子中,名词性从句可以充当主语、宾语、表语或补语。
掌握名词性从句的用法,对于提高文章的表达和理解能力非常重要。
本文将详细介绍名词性从句的不同用法及其相关例子。
一、名词性从句作主语1. 名词性从句作主语可以起到引出全文主题的作用。
例子:- What she said is absolutely right.(她说的是完全正确的。
)- Whether we should go camping this weekend remains undecided. (我们是否应该在这个周末去野营还没有决定。
)2. 名词性从句作主语可以代替一个复杂的句子。
例子:- How he managed to finish the project on time is still a mystery.(他如何在时间之内完成这个项目仍然是个谜。
)- What you do in your spare time is your own business.(你在业余时间做什么是你自己的事情。
)二、名词性从句作宾语1. 名词性从句作及物动词的宾语,说明动作的对象。
- I believe that love can change the world.(我相信爱可以改变世界。
)- She doesn't know where she left her keys.(她不知道她把钥匙放在哪里了。
)2. 名词性从句作介词的宾语,说明介词所表示的关系。
例子:- The teacher is proud of what his students have achieved.(老师为他的学生所取得的成绩感到骄傲。
)- I'm interested in how they managed to win the competition.(我对他们是如何赢得这个比赛感兴趣。
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)。
此外,在主语从句中,如果要表示惊奇、不相信、惋惜、理应如此等语气,谓语动词需要使用虚拟语气“(should) +do”。
常用的句型有:It is necessary (important。
natural。
strange。
etc.) that …和It is suggested (requested。
proposed。
desired。
etc.) that…。
3、It作形式主语和it引导强调句的比较:除了作为连接词的it之外,it还可以作为形式主语,代替真实的主语,放在句子的主语位置上。
例如,It is raining outside.表示外面正在下雨。
此外,it还可以用于引导强调句,强调句子中的某个成分。
例如,It was John who won the game.表示赢得比赛的是XXX。
与此相比,it作为形式主语时,不强调句子中的任何一个成分,只是起到连接作用。
It is common to use "it" as a formal subject to balance the sentence structure。
XXX used in the original subject clause。
The XXX "it" emphasizes a XXX "that" regardless of the emphasized element。
or by "who/whom" when referring to a person。
For example:a) It is a pity that you didn't go to see the film.b) It doesn't interest me whether you succeed or not.c) It is in the morning that the murder took place。
(emphatic sentence)d) It is John that broke the window。
(emphatic sentence)Note that "since" and "if" cannot introduce subject clauses。
but when "it" is used as a formal subject and the subject clause is placed at the end of the sentence。
"if" and "whether" can be used XXX.XXX in the following five cases:1) XXX "if" XXX.2) Subject clauses in "It is said/reported。
" structures cannot be placed before the main clause。
For example:Correct: It is said that President Jiang will visit our school next week.Incorrect: That President Jiang will visit our school next week is said.3) XXX "It XXX." structures cannot be placed before the main clause。
For example:Correct: It occurred to him that he failed the XXX.Incorrect: That he failed the XXX.4) XXX "XXX。
" structures cannot be placed before themain clause。
For example:Correct: XXX whether he is wrong or not.Incorrect: XXX.5) When a complex sentence containing a subject clause is a n。
the XXX:Correct: Is it likely that it will rain in the evening?Is it XXX evening?When using what to introduce a subject clause。
it XXX element such as subject。
object。
or predicate。
On the other hand。
that does not have this n。
For example:a) What you said XXX right.b) That she is still XXX.A XXX are similar to those that XXX by "as if." The linking verbs that can be followed by a predicate clause include be。
look。
remain。
XXX include "the reason is that," "it is because," "itappears/seems that," "it happens that," and "it turns out that." The word "that" can often be omitted.It looks as if," "it seems as if," and "as though" can be used to XXX.Why" and "because" can both introduce predicate clauses。
but "why" emphasizes the result while "because" XXX.When the subject of a XXX "n," "order," "requirement," "advice," "request," or "demand," the predicate clause should use the subjunctive mood ("should do").If" cannot be used to XXX.Note that when the subject is "reason," XXX "that" instead of "because." For example:XXX why he was late was that he missed the train by one minute this morning.A XXX the specific content of the XXX "that," which cannot be omitted。
"Whether" can also introduce a noun clause。
but "if" is not commonly used for this purpose.2、可用于同位语从句的名词包括belief、advice、demand、doubt、possibility、though、proposal、case、fact、hope、idea、n、message、news、order、problem、promise、n、request、n、truth、wish、word等。