主语从句和同位语从句
高中英语知识点归纳同位语从句与主语从句的区别
高中英语知识点归纳同位语从句与主语从句
的区别
同位语从句与主语从句是英语语法中的两个重要概念。虽然它们在形式上相似,但在用法和语义上却有着明显的区别。本文将对同位语从句和主语从句进行比较,以帮助高中英语学习者更好地理解和运用它们。
一、同位语从句的定义和用法
同位语从句是一个从句,用来补充或解释前面的名词或代词。它通常用来对该名词或代词进行说明、加强或者解释。同位语从句一般由连词"that"引导,但在口语中,可省略该连词。
同位语从句常见的结构如下:
1. The fact that...
例如:I am aware of the fact that he is leaving.
2. The news that...
例如:I am excited about the news that we won the competition.
3. The idea that...
例如:She has a strong belief in the idea that honesty is the best policy.
同位语从句与前面的名词或代词之间构成同位关系,它们在句子中的地位相当。同位语从句可以出现在复合句中的任意位置。
二、主语从句的定义和用法
主语从句是一个从句,用来充当句子的主语。它通常以连词"that"或连接代词"who, what, where, when, why, how"引导。
主语从句的常见结构如下:
1. That...
例如:That he is late is not surprising.
主语从句、表语从句、宾语从句和同位语从句
名词性从句的概念
在复合句中起名词作用的从句叫名词性从句。名词性从句包括主语从句、表语从句、宾语从句和同位语从句。
主语从句
如果一个从句在一个句子中充当主语,这个从句就叫主语从句。主语从句可以直接放在句首;也可用it作形式主语,而将从句放在句末。主语从句可以用连词that,whether,连接代词what,who,which,连接副词when, where,how,why等引导。
That light travels in straight lines is known to all.
众所周知,光沿直线传播。
It is still a question when we shall have our sports meeting.我们什么时候开运动会仍然是一个问题。
It is certain that he will come to the discussion.
他来参加讨论是确定无疑的。
Whether we discuss the question has yet to be decided.
我们是否讨论这个问题还有待决定。
What you bought is an interesting book.
你所买的是本有趣的书。
Whenever you come is all right.
不管你什么时候来都行。
主语从句的语序与陈述句语序相同,即采用“主语+谓语动词+其他”这样的模式。
宾语从句的结构
在句子中起宾语作用的句子叫宾语从句。宾语从句可作谓语动词的宾语,也可以作介词和某些形容词的宾语。
1.由that引导的宾语从句
主语从句同位语从句
同位语从句有时可以不紧跟在它所说明的名词面 ,而 是被别的词隔开。例如:
He got the news from Mary that the sports
meeting was put off.
3. 同位语从句与定语从句的区别
(1)定语从句中的that 既代替先行词,同时又在从句中 作某个成分(主语或宾语),而同位语从句中的 that 是连词,只起连接主句与从句的作用,不充 当句中任何成分。
What she did is not yet known.
Who he is doesn't concern me.
How the prisoners escaped is a completely mystery.
Whoever you are is not allowed to enter the room at the moment.
? 5.I didn't tell him anything except that I wasn't be able to find my way back.
? 2.宾语从句中的连接词that 在以下三种情况 下不能省略:
? (1)当that 从句与另一名词性从句并列作 宾语时,第二个that 不能省;
? (2)当that 作介词宾语时,that 不可省掉。 ? (3)用it 做形式宾语的宾语从句
主语从句和同位语
主语从句
一、主语从句的连词分三类
(1)从属连词引导的主语从句(that whether if)
that引导的主语从句:引导词that无含义/在句中不做成分/不可以省。That 引导主语从句通常用it 作形式主语。
例如:That you will win the medal seems unlikely.
That she survived the accident is a miracle.
whether 引导的主语从句: whether有含义(是否)/在句中不做成分/不可以省略。
注意:引导主语从句,不能用if不能在开头,只能用whether。Whether we will hold a party in the open air tomorrow depends on the weather.
Whether she is coming or not doesn’t matter too much.
(2)用连接代词引导的主语从句
在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中,其连接代词在句中起名词性作用,担当一定成分.
例如:What you need is more practice.
Whatever we do is to serve the people.
注:whatever / whoever的功用
whatever, whoever在主语从句中不含疑问意义。它引导主语从句,并在从句中作主语、宾语、表语等。
主语从句与同位语从句详解
【主语从句】
主语从句是指在句子中做主语的从句。引导主语从句的词有连词that,whether;连接代词who,what,which以及其强调形式whoever,whatever,whichever;连接副词when,where,how,why等。
例如:That she was able to come made us very happy.
Whether she will come or not is still a question.
What we need is more time.
Where she has gone is a mystery.
在主语从句中,为了保持句子的平衡,我们常常把主语从句后置,而以形式主语it代替。
例如:That he misunderstood me is obvious.通常说成:
It is obvious that he misunderstood me.
When the plane is to take off has not been announced.通常说成:
It has not been announced when the plane is to take off.
引导主语从句位于句首的连词不能用if,可以使用whether。
例如:If he comes or not doesn’t matter.应该为:
It doesn’t matter if he comes or not.
或Whether he comes or not doesn’t matter.
初中英语同位语从句、主语从句及表语从句
同位语从句,主语从句和表语从句
一、同位语从句
1.同位语:当两个指同一事物的句子成分放在同等位置时,一个句子成分被用来说明或解释另一个句子成分,前者就叫做后者的同位语。这两个句子成分多由名词或代词担任。同位语通常放在其说明的名词或代词之后。
eg:We have two children, a boy and a girl.
eg:We ,the chinese people , are determinded to build China into a powerful an prosperous country.
2.同位语从句:与先行词(名词或代词)同位或等同的从句叫做同位语从句。同位语从句的先行词多为fact, news, idea, opinion, thought, suggestion, promise, word(消息), message, request, order, proposal, plan, question等,多由连接代词that引导。
eg:The fact that the money has gone doesn’t mean it was stolen.
eg:The hope that he may recover is faint.
3.同位语从句的引导词及特点:
1)连接代词that 引导的同位语从句中,that只起连接作用,不充当句子的成分。2)连接代词who, which, what和连接副词where, when, why, how引导的同位语从句中,其引导词在句子中起连接作用即将主句与从句连接起来,且要在从句中充当成分。
Unit-4主语从句和同位语从句
3)连接副词when,where, how, why等。
Why he did it remains a mystery. When they will start is not known yet. How he became a great scientist is known to us all.
引导同位语的连词that在句中不作任何句子成分,而在定语从 句中,that可以充当从句的主语或宾语等。
同位语从句是对前面名词的内容的具体说明,而定语从句是对 前面的名词进行修饰,解释为“……的”。
连词that在同位语从句中不可省略,而在定语从句Biblioteka Baidu当它充当宾 语时可以省略。
1.The road conditions there turned out to be very good,
1.连接词:
1)从属连词:that, whether等. that 引导主语从句只起引导作用,本身无实际意义,在主 语从句中不充当任何成分,但不能省略。
That she left him cut him to the heart. That he will come is certain.
主语从句和同位语从句
一)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. 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.
(C)It is +过去分词(said/reported/ believed/known/thought/suggested)that …
主语从句和同位语从句
主语从句
语法精讲考点整合
1.The villagers have already known________we’ll do is to rebuild the bridge.
同位语从句的引导词 连词:that whether 连接代词:what who whom whose 连接副词:when where how why
主语从句和同位语从句
二)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、suggestion、truth、plan、belief、doubt、possibility、idea 、 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. 记一下句型: There is no doubt that... There is much chance that... There is no possibility that...(There is no possibility of doing sth)
从句语法详讲:主语从句、表语从句、状语从句、定语从句、同位语从句
《高中英语语法详细讲解》
主语从句(3-5)、同位语从句(5-9)、表语从句(9-12)、定语从句(12-22)、非限制性定语从句(22-24)、状语从句(24-37)
一、名词性从句
百科名片
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。
名词性从句高考热点透视
1. ___ is a fact that English is being accepted as an international language. (NMET 1995)
A. There
B. This
C. That
D. It
答案D。当名词从句在句中作主语时,为避免句子头重脚轻,常用it作形式主语置于句首,而
将真正的主语从句放在句尾。此时it只起先行引导作用,本身无实义。此句也可以改写为:That English is being accepted as an international language is a fact.
2.A computer can only do ____ you have instructed it to do.(NMET2001)
A.how B.after C.what D.when
答案C。从句子结构可知,句子的空白处应该填引导宾语从句的连词,做主句谓语动词do的宾语,同时该连接词还是从句中的do的宾语,因此,此处的连接词应该用what。
从句归纳 区分定语从句、宾语从句、同位语从句
从句小结
从句总述:
从句有主语从句、表语从句、宾语从句、同位语从句、定语从句和状语从句6类。
由于主语从句、表语从句、宾语从句及同位语从句在句子的功用相当于名词,故而这4种从句又通称名词性从句。
1.主语从句(Subject Clause):用作主语的从句叫主语从句。引导主语从句的关联词有从属连词、疑问代词、疑问副词、缩合连接代词、缩合连接副词等。
2.表语从句(Predicative Clause):用作表语的从句叫表语从句。引导表语从句的关联词与引导主语从句的关联词大都一样。
3.宾语从句(Object Clause):在句子中起宾语作用的从句叫做宾语从句.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.
4. 同位语从句(Appositive Clause):在复合句中用作同位语的从句叫同位语从句。它一般跟在某些名词后面,用以说明该名词表示的具体内容。其关联词多为that。
状语从句还可以分为条件状语从句、原因状语从句、方位状语从句和时间状语从句等。
宾语从句
学习宾语从句要抓住三要素:时态、语序、连接词。
一:时态和语序
1·主句用一般现在时,从句可用任意时态。
2·主句用过去时,从句用过去某个时态。
3·主句用过去时,从句是真理时,只用一般现在时。
语序:宾语从句只能用陈述句语序,坚决不能用疑问句语序。
二:连接词
①从属连词
连接宾语从句的从属连词主要有that,if,whether. that引导表示陈述句的宾语从句,而if和whether引导表示“是否”的宾语从句.
例句:
He told that he would go to the college the next year
主语从句和同位语从句
Exercises B 1. The news ____ another power station will be built cheered all the villagers. A which B that C what D whatever
A 2 The news ____ he toldLeabharlann Baiduus is exciting. Which of the following is wrong? A what B\ C which D that
3. It worried her a bit ____ her hair was turning grey.(MET92) ( ) A.while B. that C.if D.for . . .
同位语从句
在一个更长的句子中作同位语使 用的句子叫同位语从句。 用的句子叫同位语从句。 同位语与其前的词或短语表达的 是同一事物。 是同一事物。如:
that引导同位语从句时是一个纯连词 引导同位语从句时是一个纯连词, 3、that引导同位语从句时是一个纯连词,故 不能用which替换; that引导定语从句时是 which替换 不能用which替换;而that引导定语从句时是 代词,常可以和另一关系代词which替换。 which替换 代词,常可以和另一关系代词which替换。
Ⅲ.主语从句的连接词 主语从句的连接词
主语从句和同位语从句
在句子中起名词作用的句子叫名词性 从句.
1宾语从句;2主语从句; 3表语从句;4同位语从句
主语从句
在另外一个句子中做主语的句 子叫主语从句。 How the book will sell depends on its author. That he is the best student in the class is obvious
e.g. The news that our team has won the final matchis encouraging. (从句说明“消息” 的内容:我们队取得了决赛胜利。) The news that you told us is really encouraging.(从句对“消息”加以限定:是 你告诉我们的,而非来自其他渠道。但消息是 何内容却不得而知。)
2) That she is still alive is certain.
It is certain that she is still alive.
√
• 4._______ I can’t understand is What why he has changed his mind. That • 5.___________ the earth is round is known to us all. • 归纳: 连词_______在从句中不作成分, that
初中英语同位语从句、主语从句及表语从句
初中英语同位语从句、主语从句及表语从句
同位语从句,主语从句和表语从句
一、同位语从句
1.同位语:当两个指同一事物的句子成分放在同等位置时,一个句子成分被用来说明或解释另一个句子成分,前者就叫做后者的同位语。这两个句子成分多由名词或代词担任。同位语通常放在其说明的名词或代词之后。
eg:We have two children, a boy and a girl.
eg:We ,the chinese people , are determinded to build China into a powerful an prosperous country.
2.同位语从句:与先行词(名词或代词)同位或等同的从句叫做同位语从句。同位语从句的先行词多为fact, news, idea, opinion, thought, suggestion, promise, word(消息), message, request, order, proposal, plan, question等,多由连接代词that引导。
eg:The fact that the money has gone doesn’t mean it was stolen.
eg:The hope that he may recover is faint.
3.同位语从句的引导词及特点:
1)连接代词that 引导的同位语从句中,that只起连接作用,不充当句子的成分。2)连接代词who, which, what和连接副词where, when, why, how引导的同位语从句中,其引导词在句子中起连接作用即将主句与从句连接起来,且要在从句中充当成分。
主语从句,同位语从句
主语从句
1.定义:用作主语的从句叫做主语从句。
2.构成:关联词+简单句
3.引导主语从句的关联词有三类:
(1) 从属连词that。如:That they were sisters was unknown to anyone.
她们是姐妹这件事好象没任何人知道。
(2) 从属连词whether。如:
Whether he’ll come here isn’t clear.他是否会来这里还不清楚。
(3) 连接代词who, whom, whose, what, which, whoever, whatever, whichever
连接副词where, when, how, why。如:
What she did is not yet known. 她干了什么尚不清楚。
How this happened is not clear to anyone. 这事怎样发生的,谁也不清楚。
Whoever comes is welcome. 不论谁来都欢迎。
Wherever you are is my home ---- my only home. 你所在的任何地方就是我的家----我唯一的家。
解释:
1.主语从句能用it作形式上的主语。常以it作形式主语的句型有:
A. It+be+形容词(obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.)+that从句。如:
It is certain that she will do well in her exam. 毫无疑问她考试成绩会很好。
主语从句和同位语从句
4、引导同位语从句的关联词,除that外,还可 以根据句义使用任何其它疑问代词或副词; 而定语从句不可用what, how, whether等引导.
e.g. I had no idea at all what I should do next.
There is no proof whether he was killed by others.
同位语从句
在一个更长的句子中作同位语使 用的句子叫同位语从句.
同位语与其前的词或短语表达的 是同一事物.如:
The fact that she is ill should be considered.
同位语从句
同 位 语 从 句 一 般 跟 在 名 词 fact, news, promise, truth, belief, thought, idea,answer,information,doubt, knowledge, hope, law, opinion, plan, suggestion后面, 用以说明或解 释前面的名词.
中做宾语时,常省略
Practice
I. Tell the function of the clauses in the following sentences 说出下列从句的功能:A: Appositive同位语; B: Attributive定语
主语从句与同位语从句
位置
主语从句通常表达主句的核心信 息,而同位语从句则提供附加信 息。
主语从句通常位于句子的开始位 置,而同位语从句则紧跟在名词 或代词之后。
主语从句与同位语从句的应用场景
主语从句
在需要表达复杂的主语结构或者强调某个特定信息时使 用。
同位语从句
在需要解释或补充说明某个名词或代词时使用,如解释 某个概念、描述某个人物等。
主语从句可以由连词、关系代词或关系副词引 导,如"When he comes back is unknown." (他什么时候回来还不知道)。
主语从句在句子中充当主语,表示整个句子的 核心内容,如"Whether he will come is uncertain."(他是否会来还不确定)。
同位语从句实例
从句功能的区别
主语从句
主要用来充当句子的主语,表达句子的主要 内容,是句子结构中不可或缺的部分。
同位语从句
主要用来对主句中的某个名词进行解释或说 明,补充说明该名词的具体内容,不是句子
结构中不可或缺的部分。
04 主语从句与同位语从句的 实例分析
主语从句实例
主语从句是句子在复合句中充当主语的从句, 通常放在句首,如"What he said is not true." (他说的话不是真的)。
"which"
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Exercises
B another power station 1. The news ____ will be built cheered all the villagers. A which B that C what D whatever
A he told us is exciting. 2 The news ____
A 4.The news _____ surprised everybody yesterday now proves to be false. A. that B. when C. what D. how 5.One of the men held the view ___ C the book said was right. A. what that B. that which C. that what D. which that C some American 6.Word has come _____ guests will come for a visit to our college next week. A. what B. whether C. that D. which
Which of the following is wrong?
A what B\ C which D that
II. Choose the best answer
B 1.They expressed the hope ___they would come over to China. A. which B. that C. whom D. when A he didn’t see Tom yesterday is 2.The fact___ true. A. that B. which C. when D. what B 3.I have no idea ____he will come back. A. where B. when C. what D. that
怎样区别 同位语从句与定语从句
同位语从句与定语 从句 的不同之处
1、从句的作用不同:同位语从句用来进一步 说明前面名词的内容;定语从句用来修饰、 限定前面的名词。
e.g. The news that our team has won the final matchis encouraging. (从句说明“消息” 的内容:我们队取得了决赛胜利。) The news that you told us is really encouraging.(从句对“消息”加以限定:是 你告诉我们的,而非来自其他渠道。但消息是 何内容却不得而知。)
what 与that 在引导主语从句时的区别
what 引导主语从句时在句时在从句中充当句子 成 分 ,如 主 语、 宾 语、 表 语, 而 that 则不然 。 What 引导的主语从句一般不可改为含形式主语的 句子。例如:
1) What you said yesterday is right.
It is right what you said yesterday. ×
主语从句常用it作形式主语放句首
因而我们常见到这种句式: It+be+n./adj/-ed从句(that, whether,etc.) 例:It's a pity that you should have to leave. = That you should have to leave is a pity. It is great that I have a teacher like you. = That I have a teacher like you is great.
The news that our team has won the match is true. His delay is due to the fact that the car went wrong halfway.
The Differences Between Appositive clauses and Attributive Clauses
• 4._______ What I can’t understand is why he has changed his mind. That • 5.___________ the earth is round is known to us all. • 归纳: 连词_______ that 在从句中不作成分,
注意: 已确定的事由that引导;
没决定的事由whether引导.
2. 连接代词what, whatever, who, whoever, whose, which, whichever 等.
What he is has nothing to do with you. Whose ticket this is has not been found out. 3. 连接副词 when, where, why, how, how long, how often, how soon, how far, how many / much 等. When the test will be given is not yet decided. How much we can spend must be agreed on.
同位语从句
在一个更长的句子中作同位语使 用的句子叫同位语从句。 同位语与其前的词或短语表达的 是同一事物。如:
The fact that she is ill should be considered.
同位语从句
同 位 语 从 句 一 般 跟 在 名 词 fact, news, promise, truth, belief, thought, idea,answer,information,doubt, knowledge, hope, law, opinion, plan, suggestion后面, 用以说明或解 释前面的名词.
2、引导从句的关联词that的功能不同:that 引导同位语从句时是一个纯连词,不充当任 何成分;而引导定语从句的that是关系代词, 既指代先行词又须在从句中充当成分。
e.g.1) Dad made a promise that he would buy me CD player if I passed the English test. (that 不充当任何成分) 2) Dad made a promise that excited all his children. (that指代promise,又在从句中充当主语。)
一.同位语从句注意点
同位语从句 引导词that只起连接 的作用不充当句子 成分 同位语从句与前面 的名词是同位关系 表示这个名词的内 容 同位语从句的that 一 般不能省 定语从句 引导词that除了引导 句子外还充当一定的 句子成分 定语从句对先行词起 修饰作用,表示“… 的”。 而定语从句中的关系 代词that,当其在从 句中做宾语时,常省 略
名词性从句
在句子中起名词作用的句子叫名词性 从句.
1宾语从句;2主语从句; 3表语从句;4同位语从句
源自文库语从句
在另外一个句子中做主语的句 子叫主语从句。 How the book will sell depends on its author. That he is the best student in the class is obvious
2) That she is still alive is certain.
It is certain that she is still alive.
√
1.用that 或what 填空
what • 1. I wonder if this is ______you are looking for. • 2. Our school is quite different from what it was before. _______ that if I • 3. Father made a promise ______ passed the examination he would buy me a computer.
不含有疑问意义,而_____ what 在从 句中作成分,常含有疑问意义。
3. It worried her a bit ____ her hair was turning grey.(MET92) A.while B. that C.if D.for
请你归纳 ?
为了使句子保持平衡,常用 it 来代替主 语从句或宾语从句,而把主语从句或宾 语从句放到后面,尤其是连词 that 引导 的主语从句常用于此种句式中,但what, whatever , whoever , whichever 引导的 主语从句一般不后置。
Practice
I. Tell the function of the clauses in the following sentences 说出下列从句的功能:A: Appositive(同位语); B: Attributive(定语) 1. His proposal that we go there on foot is acceptable. 2. Many teachers hold the view that teenagers should not spend too much time online. 3.The first request that he made was to ask for freedom. 4. Do you have any idea where we will be sent? 5. Is this the company where your father works? 6. This is the reason that he gave for his absence. 7. He made an excuse that his car broke down on the way.
Ⅲ.主语从句的连接词
一、主语从句 1.连 词 that( 无词义 , 不作成分 , 不 能 省 略);whether(是否),if不能位于句首。
That he will come and help us is certain. Whether we will succeed is still a question. It is not known if he will come.
高一英语语法同步辅导
4、引导同位语从句的关联词,除that外,还可 以根据句义使用任何其它疑问代词或副词; 而定语从句不可用what, how, whether等引导。
e.g. I had no idea at all what I should do next. There is no proof whether he was killed by others.
特殊句式
1.I hate ____ when people talk with their mouths full.(MET98) A. it B. that C. these D. them 2. I feel ____ strange that he should be so careless. A. / B. it C. that D. how
3、that引导同位语从句时是一个纯连词,故 不能用which替换;而that引导定语从句时是 代词,常可以和另一关系代词which替换。
e.g. The fact that he is from Canada is new to me. (that不可换为which) The fact that surprised me is that he is not Chinese. (第一个that可换为which,第二个 不行,因为它引导的是表语从句。)