名词性从句_语法讲解
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_语法讲解
单个的主语从句作主语时,谓 语动词用单数形式。如果是两 个或两个以上的主语从句作主 语,谓语动词则用复数形式。 Where and when he was born has not been found. When the person was murdered and why he was murdered are still unknown.
I
名词性从句的种类
• 1.When we will start is not clear.
主语从句
• 2.Mrs Black won’t believe that her son has become a thief. 宾语从句
• 3. My idea is that we should do it right now. 表语从句 • 4.I had no idea that you were her friend.
宾语从句
在复合句中作主句的宾语,放在实义动词或介词的后 面.引导词有连词that (that 常可省略),whether, if; 代词有who, whose, what ,which; 副词有when ,where, how, why 等.如:
We believe (that) he is honest.
(4)用if不用whether的情况:
意:在主语从句中用来表示惊奇、不 相信、惋惜、理应如此等语气时,谓 语动词要用虚拟语气 “ should +do”, 常用的句型有:
It is necessary \ essential that…. It’s important that…. It’s natural that…. It's strange that …
同位语从句
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。
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.
英语名词性从句讲解【完整版】
2、I asked him if he could do me a favor .
If与whether的区别:
1、If不能引导放于句首的主语从句,而whether可以。 2、引导表语从句用whether,不用if。 3、引导同位语从句用whether,不用if。 4、whether可以引导从句作介词的宾语,不用if 。 5、whether or not 连在一起可以,但if不可以。而 “whether-----or not = if -----or not”
同位语从句:
定义:在复合句中充当同位语的句子。 同位语从句用来对其前面的抽象名词进行解释说明,被解释说明的词和 同位语在逻辑上是主表关系。 同位语常见名词:fact, suggestion, advice, idea, decision, news, thought, hope, belief, truth, doubt, promise, possibility, truth, warning, message, reason, report, question,explanation, wish, problem等。 常见的连接词:that, whether, what, who, how, when, where等。 用法: The thought that I want to buy my mother a birthday gift makes me excited.that 引导的同位语从句,解释说明 thought,从句不缺成 分 There is some doubt whether he will come. whether 引导同位语从句,if 不能引导同位语从句 we haven’t made the decision where we are going to spend our vacation. 有时同位语从句可以不紧跟解释说明的名词后面。 The news is surprising that he won the match.
英语语法基础-第7讲(名词性从句)
请比较下面两种句型:
复合宾语的一般句型:主语 + 谓语 + 宾语 + 宾语补足语
宾语从句后置的句型:主语 + 谓语 + 形式宾 语it + 宾语补足 find this book very useful.
➢ I find it very useful that you read aloud when
B. 在一些具有建议、命令等意义的形容词后的主
语从句中,谓语用虚拟语气“should + 动词 原形”,should可以省略,谓语动词用原形。
这类形容词主要有:
■appropriate 适当的 ■essential 必需的
■imperative 必要的
■important 重要的
■impossible 不可能的
Where we will spend our holiday has not been decided.
Why he did that is a mystery.
❖ 在所有的从句中,不用疑问句的语序,即使是由疑问代词 或疑问副词引导的从句,也必须用陈述句语序。请比较下 面的例句:
What did you do yesterday?
引语多用于文字,通常要用引号括起来,与句子的其他部分分
离。间接引语多数情况下就是一个宾语从句。
例:
直接引语:
He said: “I am going to see a film this afternoon.”
you study English .
注:it 是形式宾语,真正的宾语是that 从句。
16
3、直接引语和间接引语
❖
我们在引用别人说的话时,通常有两种办法:
语法讲解_名词性从句
名词性从句名词性从句包括主语从句、宾语从句、表语从句和同谓语从句。
一、连接词连接代词:that, what, who,which, whom,whose, whatever, whoever, whichever等连接副词:whether, how, why, when ,where, wherever等二、连接代词(除that外)和连接副词在名词性从句中都有词义,它们除了引导名词性从句外,还在从句中充当成分,即做主语、宾语、表语、定语和状语。
Who will go there is not important.Where she has gone hasn’t been known yet.I don’t know what I should do.He asked whose dictionary it was.Please tell me when we shall discuss our work plan.I have no idea how soon they are coming.要注意以下几点问题:1、连接代词‘that’的用法:在名词性从句中that 无词义,在从句中不充当任何句子成分,只起连接从句的作用,在宾语从句中,that在口语中可以省略。
但在引导主语从句时不能省略。
That he was chosen made us very happy.We heard the news that our team had won.The truth is that he is the best in his class.He said (that) he would see me the next week.2、引导宾语从句的that可省略,但及物动词后有两个宾语时,可省略第一个that, 不省略第二个that;如有形式宾语时,连接真正宾语的that 不能省略。
They made it a rule that they got up at six every day.3、由连词that引导的名词从句很少做介词的宾语,只在except, but , besides介词后看到,其他一些介词的宾语从句如果由连词that 引导,需用it作形式宾语。
高中英语语法---名词性从句详解
名词性从句详解名词性从句包括主语从句、表语从句、宾语从句、同位语从句。
其关联词有连接词that,if,whether;疑问代词who,what,which和疑问副词when,where,how,why等。
一.语法讲解1.主语从句主语从句在句中做主语。
它可以放在主句谓语动词之前,但多数情况由it作形式主语,而把主语从句放在主句之后。
例如:Who did that is known to all.It is interesting that you should like him.2.表语从句表语从句在句中作表语,位于主句中的系动词之后。
如:The question is who can complete the difficult task.表语从句不能用if引导,但可用as if引导。
例如:He looked as if he was going to cry.3.同位语从句同位语从句跟在名词后面,进一步说明该名词的具体内容。
引导同位语从句的名词主要有fact,news,promise,idea,truth等。
连接词用that(不用which),及连接副词how,when,where,why等。
例如:His delay is due to the fact that the car went wrong halfway.The news that our team has won the match is true.She asked the reason why there was a delay.4.宾语从句1.宾语从句在句中作及物动词或介词的宾语。
例如:We can learn what we did not know.He will talk to us about what he saw in the U.S.如果主句的谓语动词是及物动词make,find,see,hear等,则把宾语从句置于宾语补足语之后,用it作为形式宾语。
名词性从句的语法解析
名词性从句的语法解析名词性从句是指在句中充当名词的成分的从句,可以作主语、宾语、表语、同位语等。
名词性从句的引导词有“从属连词”和“连接代词”两种。
一、主语从句主语从句在句中充当主语,常引导主语从句的连接词有“that”和“whether/if”。
其中,“that”在口语中常省略,而“whether/if”则一般用于句中有“or not”时。
例如:1. That he passed the exam is good news.(非正式:He passed the exam is good news.)2. Whether he will come to the party is still uncertain.(非正式:If he will come to the party is still uncertain.)二、宾语从句宾语从句在句中充当宾语,常引导宾语从句的连接词有“that”、“whether/if”、“what”和“who/whom”。
其中,“that”在口语中常省略。
例如:1. She said that she would go shopping later.(非正式:She said she would go shopping later.)2. I don't know whether/if he is coming to the party.(非正式:I don't know if he is coming to the party.)3. She asked me what I wanted for dinner.4. He asked who/whom I was talking to on the phone.三、表语从句表语从句在句中充当表语,常引导表语从句的连接词有“that”、“whether/if”和“what”。
例如:1. The important thing is that we are safe.(非正式:The important thing is we are safe.)2. The question is whether/if he will pass the exam.3. The problem is what we should do next.四、同位语从句同位语从句通常用来进一步解释说明某个名词或代词指代的内容,引导同位语从句的连接词有“that”、“whether/if”、“what”、“who/whom”等。
名词性从句 语法讲解
只能用whether不能用if的情况
1.在介词后面: I’m thinking of whether we should go fishing. We didn’t think about whether it would rain the next day. 2.在动词不定式前: They asked me whether to sit at the front.
.
2.注意点
1).宾语从句一律用陈述句的语序. 2).引导宾语从句的连词that也无实际意义,多数 情况下可以省略. 3).whether和if都可以引导宾语从句,但二者用 法不同.
5).that在宾语从句中的省略与保留
(1).在主+谓+it(形式宾语)+宾补+that从句(真正宾语) 的句型中不省略. 例: We must make it clear that we mean what we say. (2).由连词and连接的两个由that引导的宾语从句中, 第一个that 可以省略,第二that不能省. He told me (that) he would come and that he would come on time. (3)that一般不充当介词宾语偶尔可作 except, in ,but的宾语;其它介词后要用that 从句作宾语须用it 作形式宾语.
Hale Waihona Puke 1. ____ we can't get seems better than ____ we
have. A.What , what C. That , that
B. What , that D. That , what
2. It worried her a bit ____ her hair was turning grey. A.while C.if B.that D.for
高考英语名词性从句语法知识点讲解
高考英语名词性从句语法知识点讲解主语从句宾语从句表语从句同位语从句作及物动词宾语作介词宾语that一般不省略可以省略一般不省略一般不省略一般不省略Whether/if(是否)放于句首时只用whether用whether/if均可,但有区别只用whether只用whether只用whether特殊疑问词注意语序要用陈述语序名词性关系从句注意语序要用陈述语序一、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,certai n,probable,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。
【语法课件】高考英语名词性从句讲解(最全版)
1、主语从句 ( subject clause )
分类
2、表语从句 ( predicative clause ) 3、宾语从句 ( object clause )
4、同位语从句 ( appositive clause )
引导词
从属连词(3个):that 、if、 whether
连接代词 (9个):who、 whom 、 what、 which、 whose、 whoever whomever、 whatever、 whichever、
7.The doctor can hardly answer the question
_w__h_e_t_her the old man will recover soon.
名词性从句引导词的用法(2):
“who”---“谁”、作主语、起连接作用
“whom”---“谁”、作宾语、起连接作用
连接代词
(表语从句)
3、You could choose whichever book you want .
(宾语从句)
名词性从句引导词的用法(4):
“when”-- “什么时候”、作状语、起连接作用
连接副词
“where”-- “什么地方”、作状语、起连接作用 “why”---- “为什么”、作状语、起连接作用
表语从句
“whether”---“是否”、不作成份、起连接作用
1、Whether she will come back on time depends on
weather(. 主语从句)
2、The problem is whether you could give us some
valuable advice(. 表语从句)(宾语从句)
名词性从句 语法
名词性从句一、名词性从句的基本概念在复合句中起名词作用的从句叫名词性从句,包括作主语从句、表语从句、宾语从句和同位语从句。
(1)主语从句就是在复合句中作主语的从句。
主语从句常用that, whether, who, whom, whose, what, which, when, where, how, why, whatever, whoever等引导。
如:Whether he will be able to come remains a question. 他是否来还是问题。
That China is a great socialist country is well known. 众所周知,中国是一个伟大的社会主义国家。
注:为避免头重脚轻,使句子平衡,常用it作形式主语,而将主语从句后置。
如上述第二例常说成:It is well known that China is a great socialist country.但是,由连接代词what, whatever, whoever等引导的主语从句一般不能用形式主语。
如:What he found surprised me greatly. 他的发现使我非常吃惊。
Whoever is finished may rest. 凡是做完工的人都可以休息。
(2)表语从句就是在连系动词之后作表语的从句。
引导表语从句的连接除与引导主语从句的连接词外,还有as if,as though。
如:The question is whether he is able to do it alone. 问题是他能否单独做这件事。
It looks as if (though) it is going to snow. 天好像要下雪似的。
注意:要区分以下句式:1. that’s why+结果;that’s because+原因。
2. the reason why /for…is that…He is absent. That’s because he is ill. 他缺席,这是因为他生病了。
名词性从句详细讲解
名词性从句宾语从句1、连接代词:who, whose, whom, what, which。
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。
在从句中担任成分,作状语。
3、连词:that, whether, if, as if。
在从句中不担任成分,注意:引导词的作用:1 连词whether 和if(是否),as if(好象)只有连接的功能,而不在从句中充当句子成分。
that作连接词,本身无任何含义。
2. 连接代词和连接副词不但有连接的功能,同时还要在从句中充当一定的句子成分,如主语、宾语、表语、定语、状语宾语从句:从句在句中充当宾语的成分。
宾语从句可作谓语动词的宾语,也可作介词的宾语,还可作某些形容词的宾语从句。
一般由that, whether, if, who, whose, what, which, when, where, how, why 等连接Jenny thought (that) her teacher was unfair.I’d like to know which one is your husband.I am sure (that) he won’t mind.He said that he was doing his homework. (注意时态的对应)Mother told me that she would buy a bike for me.I don’t know when he will come.注意think, believe, suppose等的用法(反意疑问句一从二三主)I think that he will come, won’t he?She thinks that he will come, doesn’t she?I don’t think he will come, will he?I think that he will come (提问he) Who do you think will come?that引导宾语从句无意义,不充当句子成分常省略。
语法讲解:名词性从句
语法讲解:名词性从句语法讲解: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,名词性从句可分为主语从句、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。
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。
注意:连接代词与连接副词在句中不再是疑问句,因而从句中谓语不用疑问式。
连接代词与连接副词在从句充当句子成分,连接词whether 和if(是否),as if (好像)在从句中不充当句子成分,只起连接作用。
根据句义,如果连接代词与连接副词,whether、if 和as if 都用不上时,才用that作连接词(that本身无任何含义)。
二、主语从句主语从句在复合句作主语。
g. Who will ga2. 用it作形式主语,主语从句放在句末。
g. It doesn‘t mauch wu willat引导主语从句时,不能省略。
g. That he suddenly fell ill last week made us surprised.三、表语从句表语从句在复合句中作表语,位于系动词之后。
g. The question was who could g2. 引导表语从句的连接词that有时可省去。
g. My idea is (that)we can gadlw四、宾语从句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。
g. I hope (that)everything is all rig2. 介词之后的宾语从句,不可用which或if连接,要分别用what或 wg. I'd in wu'vd the work……I'd in what you've saidwhether与if都可以引导宾语从句,常可互换。
高考英语重难点语法讲解_名词性从句
高中英语语法——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,名词性从句成分为主语从句、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。
1. 主语从句作句子主语的从句叫主语从句。
主语从句通常由从属连词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。
that在句中无词义,只起连接作用;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。
例如: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。
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(2)It + be + 形容词 + that从句(3)It + be + 动词的过去分词 + that从句(4)It + 不及物动词 + that 从句另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时,谓语动词要用虚拟语气“(should) +do”,常用的句型有:It is necessary (important, natural, strange, etc.) that …It is a pity (a shame, no wonder, etc.) that…It is suggested (requested, proposed, desired, etc.) that…注意:连词that, whether在从句中不担任句子成分,只起连接作用,不能省略。
名词性从句全面讲解
名词性从句全面讲解名词性从句是英语中的一种从属从句,它在句中充当名词的功能。
名词性从句可以在句子中作主语、宾语、表语和同位语等,并且可以由不同的引导词引导。
本文将全面讲解名词性从句的基本概念、用法及常见的引导词。
一、名词性从句的概念名词性从句是由一个词或一个词组引导的从句,它在句子中充当名词的角色。
名词性从句通常出现在复杂的句子中,起到连接主句和从句的作用。
名词性从句的引导词有很多种类,常见的有:that, whether, if, what, which, who, whom, whose, when, where, why等。
二、名词性从句的用法名词性从句可以在句子中作不同的成分,下面分别介绍其主要用法。
1. 名词性从句作主语名词性从句可以作为主语来引导句子,常用的引导词有:- That: That he is innocent surprises me.(他是无辜的让我吃惊。
)- Whether/If: Whether he will come or not is uncertain.(他是否会来还不确定。
)- What: What you said is true.(你说的是真的。
)2. 名词性从句作宾语名词性从句可以作为宾语来引导句子,常用的引导词有:- That: I know that he is a doctor.(我知道他是个医生。
)- Whether/If: I wonder whether/if it will rain tomorrow.(我想知道明天是否会下雨。
)- What: I don't understand what he is saying.(我不明白他在说什么。
)3. 名词性从句作表语名词性从句可以作为表语来引导句子,常用的引导词有:- That: The truth is that she is not happy.(事实是她不幸福。
)- Whether/If: The question is whether/if we should go or not.(问题是我们是否应该去。
名词性从句基本讲解
A.what
B.whose
C.which
D.that
解析:句意:知道当我们不在家时狗将会得到很好的照顾真
好。动词know后是宾语从句,从句中不缺成分,用that起连
接作用。
第二部分 语法考点突破
7.(2013·高考湖南卷)Do not let any failures discourage you
that引导主语从句时,仅仅起连接作用,不作句子成分,但
不能省略;who指人;which引导名词性从句时与what的区
别在于它为特指,而what为泛指。故正确答案为B项。
第二部分 语法考点突破
3 . (2013·高 考 北 京 卷 )Experts believe__C______people can
though,who, whose,which,
how,when, where,why, what,whatever,
whoever,
wherever
Whether he will come or not doesn’t matter much. Whoever comes here will be welcome.
注意事项
1.如果主句是现在时,宾语从句的 时态可根据实际情况而定;如果 主语是过去时,则宾语从句一定 要用过去时态。 2.宾语从句要用陈述句语序。 3.主句的谓语动词是及物动词feel, see,hear,find,think,make等, 可以用it作形式宾语,把宾语从句 放在补足语之后。 4.当主句的谓语是suggest, demand,insist等动词时,宾语从 句中的谓语动词用原形或should+ 动词原形。 5.当及物动词doubt接宾语从句, 主句为否定句或疑问句时,用连 词that;主句为一定句时,用连词 if/whether。
名词性从句导入语法讲解课件
03
名词性从句的句法功能
主语从句
主语从句在句子中充当主语成分,表达完整意义。
主语从句通常位于句子的开始位置,引导整句话的内容,表达完整的意义。主语 从句可以由连词、关系代词或关系副词引导,例如:When he comes back, we will have dinner.(时间状语从句引导的主语从句)
表语从句
表语从句在句子中充当表语成分,补充说明主语的性质、状 态或特征。
表语从句通常位于系动词之后,如be动词、感官动词等,用 于补充说明主语的性质、状态或特征。表语从句可以由连词 、关系代词或关系副词引导,例如:My idea is that we should start right away.(表语从句)
名词性从句的作用
表达复杂的概念或信息
修饰主句
名词性从句可以用来表达复杂的概念 或信息,使句子更加丰富和具体。
名词性从句可以用来修饰主句,使主 句的含义更加明确和具体。
连接句子
名词性从句可以用来连接两个句子, 使它们成为一个有机的整体。
02
引导名词性从句的关联词
that的用法
引导主语从句、宾语从句、表语 从句和同位语从句,在从句中不 充当任何成分,只起连接作用。
宾语从句
宾语从句在句子中充当宾语成分,完整呈现句子所表达的 对象或内容。
宾语从句通常位于及物动词或介词之后,完整呈现句子所 表达的对象或内容。宾语从句可以由连词、关系代词或关 系副词引导,例如:I don't know what he said.(宾语 从句)
同位语从句
同位语从句在句子中充当同位语成分,对名词或代词进行解释或补充说明。
同位语。
特点
具有名词的语法功能,可以独立存 在,也可以作为其他句子的成分。
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now.
表语从句
• 4.I had no idea that you were her friend.
同位语从句
什么是名词性从句?
在英语的句子结构中,本来该由名词充当的主语、宾 语、表语和同位语,由一个句子来充当,这个句子就叫 名词性从句。
主语从句 ( The Subject Clause)
名
词 宾语从句 ( The Object Clause) 性
I 名词性从句的种类
• 1.When we will start is not clear.
主语从句
• 2.Mrs Black won’t believe that her son has
become a thief.
宾语从句
• 3. My idea is that we should do it right
错误 That he will not come to the meeting this evening is true.
3).whether可以引导主语从句 解释为”是否”,但if不能.
4).whoever, whatever, whichever等词可以引导主 语从句, 但no matter who, no matter what 等不能, 它们只能引导让步状语从句.
2).连接代词: who, whom, whose, what, which, whoever, whatever, whichever
Whose bag is it ?
It can`t be told. Whose bag it 来自s can`t be told.
It can`t be told whose bag it is .
Will we visit the Great Wall tomorrow? It has not been decided.
Whether we will visit the Great Wall has not been decided.
It has not been decided whether we will visit the Great Wall .
When he will come is not known.
但是 what is the matter 和 what is wrong 不可 改变语序 2).连接词that在从句中无实际意义,起引导作用, 不作任何成分,但不能省略. He will not come to the meeting this evening is true.
注意:在主语从句中用来表示惊奇、不 相信、惋惜、理应如此等语气时,谓 语动词要用虚拟语气 “ should +do”, 常用的句型有:
It is necessary \ essential that…. It’s important that…. It’s natural that…. It's strange that …
5).为避免主语冗长,句子头重脚轻,经常用it作形式主语, 主语从句放在后面作真正的主语.
例: It is well known/reported/thought/said/… that… It is clear/necessary/certain/true/doubtful/… that… It is a pity/a shame/an honour/… that… It doesn’t matter whether…/ It seems that… It happens that…
1. ____ we can't get seems better than ____ we
When will we start tomorrow?
It will be told soon.
When we will start tomorrow will be told soon.
我们将怎样制定计划已经被老师解释清楚了.
How we will make the plan has been explained clearly by the teacher. 为什么他来这里还是不被人所知道.
Why he comes here is not known. 1.为什么有时侯用that, whether,有时侯用连接代词 , 或 着有时候用连接副词? 2.它的语序有没有变化?
2.总结:
1).主语从句一律用陈述句语序,即主语在前,谓 语在后. When will he come is not known. 错误
从 句
表语从句 ( The Predicative Clause)
同位语从句 ( The Appositive Clause)
主语从句
在复合句中作主句的主语. 引导词有连词that (that 不可省略), whether; 连接代词有who, what ,which; 连接副词 when ,where, how, why 等.如:
What does he need? It is money. What he needs is money. 无论你刚才说什么都是对的.
Whatever you said is all right.
3).连接副词: when, where, why, how, how many, how much ,how long, how soon, how often
单个的主语从句作主语时,谓 语动词用单数形式。如果是两 个或两个以上的主语从句作主 语,谓语动词则用复数形式。
Where and when he was born has not been found. When the person was murdered and why he was murdered are still unknown.
1).连接词: that, whether He is a famous singer.
It is known to us. 1.That he is a famous singer is known to us. (It is known to us that he is a famous singer.)