【语法】高中英语--名词性从句专题讲解(详细)
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。
高中英语名词性从句详解(最新整理)

I made it clear that I was determined to carry out the plan. I consider it necessary that we should spend more time practising spoken
English. We think it possible that the young master at least two foreign languages. ⑥某些动词后面,宾语从句的谓语要求用虚拟。 这类动词常见的有:command(命令), demand(要求), desire(希望), insist(坚持), order(命令), propose(提议), recommend(推荐), request(要求), require(要求), suggest(建议)等。 He proposed that we ( should ) set a dead line for the complement of the plan . 他提议拟定一个执行计划的期限
在①句中,划线部分是定语从句,其先行词是名词 boy,它不能用作同位语 从句的先行词。 在②句中,划线部分也是定语从句,其先行词是代词 those,代词不能用作 同位语从句的先行词。 在③句中,划线部分是同位语从句,其先行词是名词 fact,它同样可以用作 定语从句的先行词,④句便是一例。 由以上分析可见,同位语从句的先行词一定可以用作定语从句的先行词,但 定语从句的先行词不一定能用作同位语从句的先行词。 2.when,where,why 引导的定语从句的先行词一定分别是表示时间、地 点和原因的名词,而三者引导的同位语从句的先行词则肯定不是表示时间、地 点和原因的名词。例如:
注意事项:定从与同位语从句的区别,不要混淆哦!
高中英语语法讲义——名词性从句(主从、表从、宾从,同从)

高中英语语法讲义---- 名词性从句(主从、表从、宾从,同从)1,陈述句做名从用连词that + SV, that 表主句肯定从句完整,不做成分。
主从可用it 做形式主语,宾从第一个that 可省略。
You study hard.主从:That you study hard is known to us.= It is known to us that you study hard.表从:My opinion is that you study hard .宾从:I think (that) you study hard. …and that (不能省略)….同从:My opinion that you study hard is known to us. *比较同从和主从!●一般抽象名词后对其进行解释和说明的完整句子就是其同位语从句,不完整就是定语从句。
I appreciate your idea that we have an exam every week. (that后完整—同从)I appreciate your idea that you came up with last time.(that后不完整---定从)2,一般问句做名从用连词whether(是否) + SV,whether表主句不肯定从句完整,宾从中可用if(介词后或宾从后有or not时只用whether)。
Does your friend like English ?主从:Whether your friend likes English isn’t clear .=It isn’t clear whether your friend likes English.表从:My question is whether your friend likes English.宾从:I don’t know whether/ if your friend likes English.同从:My question whether your friend likes English isn’t clear.3, 特殊问句做名从用疑问词(连词)+ SV, 疑问词做主语时直接+谓语。
高中英语语法名词性从句专题讲解

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。
高中英语名词性从句详细讲解.docx

高中英语名词性从句详细讲解一 . 名词性从句考查的焦点主要有以下六方面1.考查名词性从句的语序问题2.考查引导词 that 与 what 的区别3.考查 it 在名词性从句中作形式主语和形式宾语的用法4.考查 whether 与 if 的区别5.考查名词性从句中的疑问词 +ever 引导的名词性从句与 no matter+ 疑问词引导的状语从句的区别6.考查名词性从句的虚拟语气问题二 . 名词性从句的含义及连接词名词性从句的含义:在复合句中起名词作用的从句叫做名词性从句。
它包括主语从句、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分为四类: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, whomever,whose,which,whichever.who,whoever,(在从句中做主语、whom,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)三 .四类名词性从句语法要点1.主语从句在整个句子中用作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。
it作形式主语: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。
高中英语名词性从句讲义(超详细版)

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。
高考英语名词性从句讲解(最全版)

1、主语从句 ( subject clause ) 2、表语从句 ( predicative clause ) 3、宾语从句 ( object clause )
分类
4、同位语从句 ( appositive clause )
从属连词(3个):that 、if、 whether 连接代词 (9个):who、 whom 、 what、 which、 whose、 whoever whomever、 whatever、 whichever、 连接副词(4个):when、 why、 where、 how
引导词
名词性从句引导词的用法(1):
从句中的每一个引导词都有3个功能,分别如下:
“that”---无词义、不作成份、起连接作用
从属连词
“if”--- “是否”、不作成份、起连接作用
“whether”---“是否”、不作成份、起连接作 用
“that”---无词义、不作成份、起连接作用
1、That we will realize our dreams in the future is
(宾语从句)
“whose”---“谁的”、作定语、起连接作
用
1、Whose bag was the most beautiful is still (主语从句) unknown now . 2、The question is whose friends could lend me a hand . (表语从句) 3、I want to know whose suggestion is more practical . (宾语从句)
英语名词性从句
Noun Clause
请思考
定语从句的定义:
起定语作用,用来修饰名词或代词的从句。
高中英语2024届高考名词性从句知识分类讲解(主语从句+宾语从句+表语从句+同位语从句)

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。
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told
有人告诉
heard
有人听说
reported
据报道
decided
作出决定
suggested
有人建议
advised
有人建议
ordered
根据命令
remembered
有人记得
thought
有人认为
considered
认为
well-known
很著名
hoped
有人希望
announced
据宣布
Itis reported that no passengers were injured in the accident.
Weare talking about whether we admit students into our clubs.
They look similar except that one is a little tall.
3)作系表结构的宾语。
常用于此类结构的形容词有:sure, certain, glad, pleased, happy, afraid, surprised, satisfied, sorry等表示“情感”的形容词。
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。
Whathe said just now is true.
Who breaks the law will be punished.
Iasked 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.
that, whether, if
连接代词
既起连接作用,本身又作从句的主语、宾语、表语或定语
who, whom, whose, which, what, whoever, whatever, whichever
连接副词
既起连接作用,本身又作从句的状语
when, where, how, why,whenever,wherever,however
注:It is necessary/important/surprising/strange/unthinkable/unbelievable/incredible that+主语(should)+动词原形+其它。
e.g. It is necessary that a college student (should) master one or two foreign languages.
主语从句
主语从句可直接放在句首,也可用形式主语it代替,而将主语从句后置。
that引导的主语从句
1)that引导的主语从句置于句首(that此时在从句中不充当任何成分,无含义,只起连接作用,不能省略)
That the earth moves around the sun is known to all.
注:从句作主语,谓语动词用单数形式。
2)在that引导的主语从句中,常用it作形式主语,that引导的真正的主语从句后置,常见的此类句型有:
1It+系动词+形容词+that从句。
常用于这种结构的形容词有:
necessary
必要的
certain
明确的
right
正确的
clear
清晰的
(un)likely
Whetheryou can succeed or not depends on how hard you work at it.
(whether引导的主语从句放在句首)
It is unknown whether/if he has agreed to my plan.
(主语从句是whether/ifhehas agreed to my plan, it作形式主语)
有些动词短语后。
常见的这类动词短语有:
find out
查出
turn out
结果是
point out
指出
make sure
确信
figure out
辨别出
keep/bear in mind
牢记
Pleasefindout when the ship sails for New York.
We should keep in mind that sports can help us develop both our bodies and characters.
e.g. It is suggested that you(should) spend more time in studying English.
4It+动词(+宾语或状语)+that从句。
常用于这种结构的动词有:
seem
显得
happen
碰巧
matter
重要
occur
出现
turn out
结果是
Ithappened to me that I was away when he called.
(why在从句中作原因状语)
When we’ll go for a picnic isn’t known.
(when在从句中作时间状语)
宾语从句
句法功能
1)作动词的宾语
大多数位于及物动词后。
Ihope(that) you can join us in the game.
Idoubt whether/ifhe will come to the wedding.
I have made it rule that I keep diaries.
B.有些动词(词组)带宾语从句时需要在从句前加it.
如:hate,dislike, appreciate, see to, depend on等。除此之外,take it for granted中的it是位于动词短语而不是从句前。
It is generally considered that boys are better at science than girls.
注:Itis suggested/advised/ordered/requested/insisted/demanded +that+主语(should)+动词原形+其它。
We’re all pleased that we have once again overcome the difficulty.
I am extremely sorry that I have troubled you so much.
that引导的宾语从句
that引导的宾语从句表示陈述意义。that无实际意义,在从句中不充当任何成分。that可以省略。
名词性从句
概念
在复合句中起名词作用的从句叫作名词性从句。
种类
主语从句、宾语从句、表语从句和同位语从句。
注:由于名词性从句在句中不同的句法功能(即名词性从句在复合句中,能充当主语、宾语、表语、同位语等。),相应地,名词性从句可以分为主语从句、宾语从句、表语从句和同位语从句。
引导词
类别
功能
例词
从属连词
指起连接作用,不充当从句中的任何成分
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。
不奇怪
Itis a pity that you didn’t attend the lecture yesterday.
It is no wonder that you’ve achieved so much success.
3It+ be+过去分词+that从句。
常用于这种结构的过去分词有:
said
可以运用it作形式宾语代替宾语从句
A.动词find, feel, think, consider, make, believe, guess, suppose, assume等后有宾语补足语时,要用it作形式宾语,而把that引导的宾语从句后置。
e.g. I think it necessary that we take plenty of hot water every day.
注: whoever和whatever引导的名词性从句一般不用it作形式主语。
what引导的主语从句一般按单数对待,但在实际使用中,其单复数取决于其成分的含义。
e.g. What the kid wanted was only a new school bag.
(schoolbag是可数名词单数,谓语动词用单数)
(不)可能的
possible
可能的
strange
奇怪的
obvious
明显的
natural
自然的
important
重要的
It is likely that he can’t come to the meeting.
It is obvious that you have made a big mistake.