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Grammar宾语从句与表语从句名词性从句在复合句中起名词作用的从句叫做名词性从句。
名词性从句的作用相当于名词，因此主语从句、表语从句、宾语从句和同位语从句分别作主句的主语、表语、宾语和同位语。
主语从句： Who will win the match is still unknown. 宾语从句： I want to know what he has told you.表语从句： The fact is that we have lost the game.同位语从句： The news that we won the game is exciting.引导名词性从句的连接词可分为三类：连接词 (不充当从句的任何成分 )：that ,whether ,if连接代词：what, who, whom, whose, which, wh+ever连接副词： when ,where ,how ,whyObject Clauses宾语从句请对应写出句子成分I know him.（）（）（）I know who he is.（）（）（）请用横线画出下面句子的宾语从句部分。
1、I know him.2、Do you have the time?3、I think that she is beautiful.4、Why don’tyou pay attention to me?总结：宾语通常位于谓 _____________或者 _____________后一、宾语从句的概念：宾语从句在复合句中作主句的宾语。
位置：通常放在主句谓语动词（及物动词）或介词之后。
句子结构：主句+连词 (引导词 )+ 宾语从句e.g.She asked if these answers were right.We can learn what we do not know.He will talk to us about what he saw in the U.S.A.I don ’ t knowwhere we will hold the meeting.通过观察，我们可以知道宾语从句的语序用陈述语序：接 +主 ++其他成分：1)Could you tell me______.A. you will get here whenB. when will you get hereC. get here when you willD. when you will get here2)Mother asked his son what ______for lunch at school.A. did he hadB. does he hadC. he hasD. he had3)Pointing to the young plant, he asked me ____ that was the one we had seen in the picture.A. whatB. ifC. whereD. how二、接1、从属接 (不充当从句的任何成分 )： that ,whether ,if1）、 I hear (that) he will be back in an hour.2）、I want to know if /whether he will go to the park with us注：1、由 that 引的述句性的从句，在很多如say, think, wish , hope, see, believe, agree, expect, hear , feel等后。
宾语从句宾语从句在句子中起宾语作用。
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.学习宾语从句要抓住三要素：连接词、语序和时态。
1.连接词连接词一般都是that(指事务或人),which（指事）,who（指人）1．从句为陈述句，常选择连接词that或将that省略，直接与主句相连。
2．从句为一般疑问句，常选择连接词if或whether。
在whether … or not 结构中不能用if 替换。
3．从句为特殊疑问句，常选择what,when,where,which,who,how等的疑问代、副词作连接词。
注意：当who为主语时，句式为：who+谓语+其他2.判断时态情况：1.主句是一般现在时，从句为各种时态情况。
eg．He says (that) he will leave a message on my desk. They know (that) he is working hard.2.主句是一般过去时，从句为各种相应过去时态注意：从句是客观真理时，用一般现在时。
He answered that he was listening to me. Father told me that practice makes perfect .3. 注意：A 宾语从句必须用陈述语序。
He is wondering when he can finish this difficult job.B 有时候可以用it 作形式宾语，而把真正的宾语从句放在后面。
I thought it impossible that he could finish this job in just two hours.You may depend on it that I shall always help you,C 带有宾语从句的复合句的否定形式一般是否定主句。
I don’t think he likes the English teacher.注意：引导词that在宾语从句中的用法（that 不能省略的情况）当一个动词带有两个或两个以上宾语从句时,此时第一个that可以省略,第二个that不可以省略;eg．I believe（that）you have done your best and that things will get better．当宾语从句有it做形式宾语时eg．She made it clear that she had nothing to do with him．当主语谓语动词(包括非谓语动词)与宾语从句之间有插入语时;if,whether在宾语从句中的用法① if和whether在作“是否”解时,引导宾语从句常放在动词know,ask,care,wonder,find out等之后,介词后一般不用if② whether后可以加or not,但是if不可以③ . 在不定式前只能用whether. 如：I can’t decide whether to stay. 我不能决定是否留下④避免歧异时,我们常用whether而不用if表语从句定义：表语从句就是用一个句子作为表语。
高中英语知识点归纳宾语从句与表语从句的区别宾语从句和表语从句是英语语法中两个重要的从句类型。
尽管它们在形式和用法上有些相似，但它们之间存在着明显的区别。
本文将对宾语从句和表语从句进行详细归纳和比较分析。
宾语从句（Object Clauses）宾语从句是一个句子，被用作主句中的宾语。
它通常回答了主句中的动词或介词所问的疑问。
通常有三种类型的宾语从句：陈述句型、疑问句型和祈使句型。
以下是宾语从句的特点和用法：1. 宾语从句常常由连接词引导，如that、whether、if等。
例句：He asked me whether I had finished my homework.2. 宾语从句中的谓语动词常按照陈述句的语序来构造，即主语+谓语（不需要使用助动词do/does/did）。
例句：She told us that she was going to study abroad.3. 宾语从句不加标点符号与主句隔开。
例句：I don't know if I can attend the party.4. 宾语从句可以出现在动词宾语的位置，也可以出现在介词宾语的位置。
例句：I believe that he is telling the truth.They are discussing whether to go on a trip.表语从句（Predicate Nomination Clauses）表语从句用来说明主语的身份、状态、特点等，并与系动词（如be、seem、appear等）连用，充当系动词的宾语。
以下是表语从句的特点和用法：1. 表语从句通常由连接词引导，如that、whether等。
例句：His dream is that he becomes a successful businessman.2. 表语从句中的谓语动词与主从句的主语保持一致。
例句：The problem is that we have run out of time.3. 表语从句不加标点符号与主句隔开。
英语必修3第三单元语法宾语从句和表语从句讲解------------------------------------------作者xxxx------------------------------------------日期xxxx英语必修3第三单元语法宾语从句和表语从句讲解、练习Unit 3 Grammar Noun Clauses 名词性从句名词性从句相当于名词，在复合句中可分别作主语、表语、宾语和同位语。
名词性从句可分为主语从句、表语从句、宾语从句和同位语从句。
一The Objective Clause 宾语从句在复合句中作宾语的从句称作宾语从句，可以作动词的宾语，也可以作介词和非限定动词及某些形容词的宾语。
引导宾语从句词有连词that，if，whether；连接代词who，whose，what，which；连接副词when，where，how， why等。
1)I think women can reach very high achievements in many fields of science.2) I wonder she remembered how many babies she had delivered.3) Do you know Jack was speaking to?4) He asked it was.5) Pay attention to the doctor said.6) Please tell me the earthquake took place.7) Will you tell me I can keep fit and healthy?做动词的宾语(1)大部分宾语从句直接跟在动词后：He doesn’t know where the post office is.(2)有些宾语从句前要有间接宾语：He told me what I should read．(3)如果宾语从句后面有宾语补足语，要使用形式宾语 it 而将从句放到补足语后面；I thought it strange that he failed to call me．(4)在think, believe, suppose, expect等动词之后的宾语从句中，如果从句谓语是否定含义，则将主句谓语动词think等变为否定形式。
表语从句表语从句就是用一个句子作为表语。
说明主语是什么或者怎么样，由名词、形容词或相当于名词或形容词的词或短语充当，与连系动词一起构成谓语。
The problem is puzzling. 这个问题令人困惑。
（主语+连系动词+形容词作表语）The problem is when we can get a pay rise.问题是什么时候我们可以得到加薪。
（主语+连系动词+句子作表语（表语从句））※连接表语从句的连接词有：that, what, who, when, where, which, why, whether, how, whoever，whomever，whichever ，whatever等。
还有如because, as if, as though等。
His suggestion is good.His suggestion is that we should stay calm.The question is confusing.The question is when he can arrive at the hotel.※表语从句一定要用陈述语序。
False: The question is when can he arrive at the hotel.Right: The question is when he can arrive at the hotel.※引导名词性从句时if/whether（是否）用法辨析：if不能引导表语从句，只能用whether 来引导。
引导宾语从句时if/whether可以互换，但介词后面的宾语从句只能用whether来引导。
位于句首的主语从句只能用whether来引导，同位语从句也只能用whether来引导。
False: The question is if the enemy is marching towards us.Right: The question is whether the enemy is marching towards us.※不像宾语从句，在有表语从句的复合句中，主句时态与从句时态可以不一致。
高中英语从句讲解与练习（1）表语从句1．定义：用作表语的从句叫做表语从句。
2．引导表语从句的关联词的种类：(1) 从属连词that。
在从句中不做成分。
如：The trouble is that I have lost his address.麻烦是我把他的地址丢了。
The reason was that he was late for school.(2) 从属连词whether,as,as if。
如：1.He looked just as he had looked ten years before.他看起来还与十年前一样。
2.The question is whether they will be able to help us. 问题是他们是否能帮我们。
注：从属连词if一般不用来引导表语从句，但as if却可引导表语从句，如：All this was over twenty years ago, but it’s as if it was only yesterday.这都是20多年前的事了，但宛如昨天一样。
The key is whether we can solve the problem.//It looked as if it was going to rain.注：能跟表语从句的谓语动词一般为系动词be, seem, look，sound等。
如：He looked just as he had looked ten years before. 他看起来还与十年前一样。
It sounds as if someone is knocking at the door.连接代词who, whom, whose, what, which, whoever, whatever, whichever 在表语从句中做主语、宾语等。
如：The problem is who we can get to replace her. 问题是我们能找到谁去替换她呢。
Unit3 高考真题汇编-宾语从句和表语从句【真题解密】名词性从句解题思路：①题干句若是疑问句，首先将其还原成陈述语序；②观察设空前后，确定是什么从句；③回忆相关从句的用法特点，从而做出取舍；④将选项代入句子，看前后语意是否连贯。
一、宾语从句1.【2015•湖南】26.You have to know ________ you're going if you are to plan the best way of getting there.A. whatB. thatC. whereD. who答案：C【考点定位】考查动词宾语从句。
【名师点睛】判断是什么句子最关键，这个句子是由know引导的宾语从句，宾语从句的连接词有连接代词和连接副词。
因为从句部分缺少状语成分，答案就出来了。
正确解答该题需要理解句意以及注意上下文（you're going if you are to plan the best way of getting there.）的表达。
2.【2015•北京】33.I truly believe ________beauty comes from within.A. thatB. whereC. whatD. why答案：A解析：句意：我很相信美丽源自于内心！本题考查宾语从句。
从句部分不缺少任何成分，因此用that起到连接作用，也可以省略。
从句部分不缺少任何成分，因此用that起到连接作用，也可以省略。
故选A。
【考点定位】考查动词宾语从句。
【名师点睛】名词性从句分多种，宾语从句在考试中也是很常见的，要注意宾语是句子的一个重要成分，它可以由名词、代词、名词短语或句子充当。
当一个句子充当宾语时，这个句子就称之为宾语从句。
一般情况下，宾语从句可作谓语的宾语，也可做主语的宾语。
根据所选空在句中所作的成分来判断出是何种名词性从句。
3.【2015•浙江】6. If you swim in a river or lake, be sure to investigate ________ is below the water surface. Often there are rocks or branched hidden in the water.A. whatB. whoC. thatD. whoever答案：A解析：句意：如果你在河里或湖里游泳，请确定查看水面下有什么？通常总有一些石头或树枝藏在水里。
名词性从句在复合句中起名词作用的从句叫做名词性从句。
名词性从句的作用相当于名词，因此主语从句、表语从句、宾语从句和同位语从句分别作主句的主语、表语、宾语和同位语。
主语从句：Who will win the match is still unknown.宾语从句：I want to know what he has told you.表语从句：The fact is that we have lost the game.同位语从句：The news that we won the game is exciting.引导名词性从句的连接词可分为三类：连接词(不充当从句的任何成分)：连接代词：what, who, whom, whose, which, wh+ever连接副词：when ,where ,how ,whyObject Clauses 宾语从句一、宾语从句的概念：宾语从句在复合句中作主句的宾语。
位置：通常放在主句谓语动词（及物动词）或介词之后。
句子结构：主句+连词(引导词)+ 宾语从句e.g. She asked if these answers were right.We can learn what we do not know.He will talk to us about what he saw in the U.S.A.I don’t know where we will hold the meeting.通过观察，我们可以知道宾语从句的语序用陈述语序：连接词+主语+谓语+其他成分1)Could you tell me______.A. you will get here whenB. when will you get hereC. get here when you willD. when you will get here2) Mother asked his son what ______for lunch at school.A. did he hadB. does he hadC. he hasD. he had3) Pointing to the young plant, he asked me ____ that was the one we had seen in the picture.A. whatB. ifC. whereD. how二、连接词1、从属连接词(不充当从句的任何成分)：that ,whether ,if1）、I hear (that) he will be back in an hour.2）、I want to know if /whether he will go to the park with us用it做形式宾语的宾语从句时，it常可以放在动词think, find, consider, believe, feel, make等后作为形式宾语，而真正的宾语——that从句则放在句尾）（此时that一定不可以省略）I think it necessary that you should read English aloud.We heard it that she would get married next month.3、that从句位于句首时，that不可省略。
That he ever said such a thing I simply don’t believe.4、if 和Whether的区别1）、由连词if、whether 引导的表示“是否…”的宾语从句。
Whether,if 在从句中不做句子的成分，一般情况下，whether和if 可以替换。
例：I don’t know if/whether he will come tomorrow.2）、下面几种情况只能用whether①和不定式连(whether to do sth.)用作宾语时不用if引导.例：Whether to go there hasn’t been decided.They asked me whether to go shopping.②宾语从句中有or not时不用if引导.例：I don’t know whether the star will come or not.③在介词后面的宾语从句中不用if引导例：I’m thinking of whether we should go fishing.④宾语从句提前时：例：Whether this is true or not, I can’t say.练习：1. I asked her _____________ she had a bike.2. We’re worried about __________ he is safe.3. I wonder ______________ he is well.4. I don’t know ___________ or not he is well.5. I don’t know __________ to go.2、连接代词和连接副词连接代词：what, who, whom, whose, which, wh+ever 连接副词：when ,where ,how ,why 因为连接代词或副词连接主句和从句，并在从句中担任句子成分，具有一定的意义，不可省略。
Do you know what he said just now?I don’t remember when we arrived.I asked him where I could get so much money.Please tell me who (whom) we have to see.1. Wang Hai told me _______ he didn't go hiking yesterday afternoon.（how, why）2. Can you tell me ________ else is going to be on duty today?（who, whom）3. He always thinks ______ he can do better.（how, who）4. They don't know _________ we are going hiking. (when, what)5. I don't know ________ so many people crowding round him. (how, why)6. Do you know ________ shirt it is? (whose, who’s)三、时态1. 主句用现在时或将来时，从句可用任何时态，根据实际情况而定I know that he lives here.I know that he lived here ten years ago.I have heard that he will come tomorrow.2.如果主句是过去的时态（一般过去时，过去进行时），从句的时态一定要用相对应的过去的某种时（一般过去时，过去进行时,过去将来时，过去完成时）I knew who lived here.I saw that she was talking with her mother.He said that his father had gone to Beijing.3. 从句说明的是一般真理、客观事实、自然现象时，仍用一般现在时。
He told the boy that three and three is six.He told me that the earth moves around the sun.1. The young man asked _____ it's summer or winter.A. eitherB. thatC. weatherD. whether2. We don't know ______ they did it.A. howB. whoC. whatD. which3. The teacher asks us ____ Jim can come back on time.A. thatB. ifC. whenD. what time4. Does anybody know ______ we will have a sports meeting this weekend or not.A. ifB. whereC. whetherD. that5. Could you show me ________ ?A. how can I get to the stationB. where is the stationC. how I could get to the stationD. how I can reach the station8. Someone is ringing the doorbell. Go and see _______.A. who is heB. who he isC. who is itD. who it is10. He says that if it ______ tomorrow, he ____ fishing.A. will rain, won't goB. rained, wasn't goC. rains, won't goD. rain, will goPredicative Clauses 表语从句This is his job. This is what he does every day.（）（）表语从句是在复合句中作表语的名词性从句, 放在系动词之后。
一般结构是“主语+系动词+表语从句”。
系动词有那些呢? 常见的系动词分为三种：A．表示特征和状态：be, look, sound, taste, smell, seem, appear等B．表示由一类状态转为另一类状态：get, become, grow, turn, fall, go, come, run等C．表示某种状态的：remain, keep, prove, continue, stay等从句连接词分为三类：引导表语从句的连接词一般不省略。
连接词: that / whether /as if /as though( if 不引导表语从句)连接代词: who / whom / whose / which / what连接副词: when / where / why / how / because用横线画出表语从句：The question is whether we can rely on him.That is because we were in need of money at that time.He looked as if he was going to cry.That is why I was late.过观察，我们可以知道表语从句的语序也是用陈述语序注意：1、that 引导的表语从句，that 仅起连接作用，无意义，在句中不作任何成分，通常不可省略。
