主语从句和表语从句
表语从句与主语从句
表语从句与主语从句表语从句和主语从句以及宾语从句都要用陈述语序。
Ⅰ.表语从句在复合句中，位于系动词之后作表语的从句称为表语从句。
它位于主句的系动词之后，最为重要的是我们应该为牛找到足够的水。
The doubt is who has taken away the valuable vase. （主语，人）疑点是谁拿走了那只贵重的花瓶。
My topic today is what most scientists are researching.（宾语，物，没有选择范围）我今天的话题就是大多数科学家正在研究的课题。
The problem is which school will be chosen.(which在从句中作定语)问题是哪一所学校将被选中。
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。
表语从句中应注意的问题(1)because，why引导的表语从句。
because引导表语从句时，表示“因为”，why引导表语从句时，表示“……的原因”，相当于the reason why。
That’s because he didn’t understand me. (That’s because...强调原因)那是因为他不理解我。
That’s why he got angry with me. (That’s why...强调结果)那正是他对我生气的原因。
(2)what引导的主语从句表示结果或名词reason作主语时，后面的表语从句表示原因时要用that引导，不宜用because。
What cost him his life was that he was too careless.使他丧命的原因是他太粗心了。
The reason why I was sad/for my being sad was that he didn’t understand me.我难过的原因是他不理解我。
中的表语从句与主语从句的区别与联系总结
中的表语从句与主语从句的区别与联系总结表语从句与主语从句是英语语法中常见的两种从句结构。
它们在句子中起到不同的作用，有着一定的区别与联系。
本文将对表语从句与主语从句的概念、用法以及区别与联系进行总结。
一、表语从句的概念与用法表语从句是由一个句子充当另一个句子的表语，对主句的主语或者宾语进行补充或说明。
通常使用连词"that"来引导表语从句。
表语从句常常出现在be动词（is、am、are、was、were等）后面，也可以出现在感官动词（feel、look、seem等）后面。
如：1. My dream is that I can travel around the world.（我梦想环游世界。
）2. He looks like he is in a bad mood.（他看起来心情不好。
）从以上例子可以看出，表语从句是对主句的主语或宾语进行补充或说明，常常使用连词"that"来引导。
二、主语从句的概念与用法主语从句是在句子中充当主语的从句结构。
它的引导词有很多种，如that、whether、wh-引导的词（who、what、when、where等）等。
主语从句可以说是句子的主体，它所描述的是句子表达的核心内容。
如：1. That he won the championship surprised everyone.（他赢得冠军让大家惊讶。
）2. Whether we can go camping is dependent on the weather.（我们能否去野营取决于天气。
）从以上例子可以看出，主语从句在句子中充当主语的角色，描述的是句子的核心内容，常常使用引导词that、whether、wh-引导的词等。
三、表语从句与主语从句的区别1. 结构不同：表语从句常常使用连词"that"来引导，而主语从句的引导词有多种变化。
2. 位置不同：表语从句通常出现在be动词后面，充当be动词的补足语；而主语从句作为整个句子的主体，位于句首位置。
主语从句和表语从句的复合句例子
主语从句和表语从句的复合句例子复合句是由一个主句和一个或多个从句构成的句子。
主语从句和表语从句是复合句的两种常见类型。
主语从句用作主句的主语，而表语从句用作主句的表语。
它们在句子中起到不同的语法作用。
下面将通过多个例子来说明主语从句和表语从句的用法和语法结构。
1. 主语从句的例子（1）“What he said”是主语从句作为整个句子的主语。
例句：What he said is true.翻译：他说的是真的。
（2）“Whether they will come or not”是主语从句作为整个句子的主语。
例句：Whether they will come or not is still uncertain.翻译：他们是否会来还不确定。
（3）“Who will win the game”是主语从句作为整个句子的主语。
例句：Who will win the game remains to be seen.翻译：谁会赢得这场比赛还有待观察。
2. 表语从句的例子（1）“That he is a doctor”是表语从句作为主句的表语。
例句：My brother's dream is that he is a doctor.翻译：我弟弟的梦想是他成为一名医生。
（2）“What she said”是表语从句作为主句的表语。
例句：The fact is what she said is true.翻译：事实就是她所说的是真的。
（3）“Whether it is right or wrong”是表语从句作为主句的表语。
例句：The question is whether it is right or wrong.翻译：问题是对错。
3. 主语从句和表语从句的区别主语从句和表语从句的区别在于它们所起的作用。
主语从句作为整个句子的主语，相当于一个名词短语，而表语从句则作为主句的表语，描述或补充说明主语的特征或状态。
主语从句和表语从句的用法解析
主语从句和表语从句的用法解析名词性从句（主语从句、表语从句、宾语从句、同位语从句）主语从句、表语从句、宾语从句和同位语从句在复合句中的充当的成分和其名称相同，分别作主句的主语、表语、宾语和同位语。
上述这四种从句均被称为名词性从句。
所有的名词性从句均不能用逗号分开，并且它们都用相同的关联词，关联词如下：① 主从连词：that (无意义), whether (是否), if (是否)（在句子中不充当任何成分）② 连接代词：who (谁), whom (谁), whose (谁的), what (什么), which (哪一个)③ 连接副词：when (什么时候), where (什么地方), how (怎样), why (为什么)主从连词只起连接作用，连接代词和连接副词除了起连接作用外，还充当从句某一个成分。
另外，能够用whatever, whichever, whoever, who(m)ever等连接代词引导名词性从句，来增强语气。
（一）主语从句（subject clause）在主句中用作主语的主谓结构称之为主语从句。
例如：That he will come to the discussion is certain.他来参加讨论是确定的。
That the moon moves round the earth is well known to all of us.月球绕地球转动，这是我们大家都熟知的。
When the meeting is to be held has not yet been decide. 会议什么时候召开还没有决定。
主语从句放在句首，句子常常显得比较笨重，所以通常能够把it放在句首，作形式主语，而将主语从句放在后面。
例如上面的句子能够分别改写为：It is certain that he will come to the discussion.It is well known to all of us that the moon moves round the earth.It has not yet been decide when the meeting is to be held.下面再举一些例句：What they are after is profit.他们追求的是利润。
主语从句、表语从句
主语从句在句子中担当主语的是一个从句，这个从句就叫做主语从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。
主语从句使用陈述语序，其通常结构为“引导词+ 主语+ 谓语+ 其他成分”；但当连接代词同时充当从句主语时，其结构为“连接代词+ 谓语+ 其他成分”。
一、主语从句的引导词主语从句通常由连词that和whether、连接代词或连接副词以及关系代词型what引导。
1. that引导例句：That you are coming to London is the best news I have heard this long time. 你将来伦敦是好久以来我听到的最好消息。
2. whether引导例句：Whether they would support us was a problem. 他们是否会支持我们还是一个问题。
3. 连接代词引导例句：Whoever is top from wins the game when two matched players meet. 两强相争勇者胜。
4. 连接副词引导例句：How this happended is not clear to anyone. 这件事怎样发生的，谁也不清楚。
5. 关系代词型what引导例句：What struck me was that they have all suffered a lot. 给我很深印象的是他们都受过很多苦。
二、主语从句与形式主语it有时为了考虑句子平衡，通常在主语从句处使用形式主语it，而将真正的主语从句移至句末。
这分三种情况：(1) 对于以连词that引导的主语从句，通常用形式主语代主语从句：例句：That they should refuse to sign the petition required great courage. 他们拒绝在请愿书上签字这是需要很大勇气的。
(2) 对于以连接代词(副词)引导的主语从句，可以使用形式主语代主语从句，也可直接在句首使用主语从句：例句：Whether they would support us was a problem. 他们是否会支持我们还是一个问题。
中的表语从句与主语从句总结
中的表语从句与主语从句总结表语从句与主语从句是汉语语法中常见的句型结构，它们在句子中担任不同的成分，有着各自的特点和用法。
本文将对中的表语从句与主语从句进行总结，以帮助读者更好地理解和运用这两种从句。
一、表语从句表语从句是句子中充当表语的从句，用来说明或补充主句的主语或宾语。
在句子中，常常由一些特定的动词或形容词引导。
1. 动词引导的表语从句一些动词后面可以跟一个从句作为它的表语，例如：是、成为、被、叫做等。
例如：他是一个优秀的学生。
（表语从句在系动词“是”后面）她成为了一名医生。
（表语从句在动词“成为”后面）2. 形容词引导的表语从句一些形容词可以跟一个从句作为它的表语，例如：重要的、必要的、可能的等。
例如：休息好对身体是重要的。
（表语从句在形容词“重要的”后面）帮助别人是值得提倡的行为。
（表语从句在形容词“值得提倡的”后面）二、主语从句主语从句是句子中充当主语的从句，用来说明或描述主句的主语。
在句子中，常常由一些特定的词引导。
1. 连词引导的主语从句一些连词可以引导一个从句作为主语，例如：谁、什么、哪里等。
例如：谁来捣乱的还不清楚。
（主语从句由连词“谁”引导）什么是成功的关键？（主语从句由连词“什么”引导）2. 从句引导词引导的主语从句一些从句引导词可以引导一个从句作为主语，例如：怎样、为什么、无论等。
例如：无论他说什么，我都不会相信他。
（主语从句由从句引导词“无论”引导）为什么他会辞职，我始终不明白。
（主语从句由从句引导词“为什么”引导）总结：表语从句和主语从句在句子中的作用不同，但它们都是由从句组成的，并且在语法上有着一定的共性和特点。
表语从句常常在系动词后面，用来作为主句的补充说明，它一般由一些特定的动词或形容词引导。
主语从句常常在句子的主语位置，用来说明或描述主句的主语，它可以由一些连词或从句引导词引导。
在使用表语从句和主语从句时，需要注意从句的位置和从句引导词的使用，以确保句子的语义和语法的准确性。
主语从句和表语从句
主语从句和表语从句主语从句和表语从句知识点1.名词性从句引导词的选择选择原则“缺什么，补什么，什么不缺，用that”“什么不缺，用that”的意思是：如果从句中不缺任何成分，而且句意完整时，就用that来引导主语从句或表语从句以及其他的名词性从句。
2.whether 意为“是否”，引导的主语从句放在句首，不能用if 代替；但当用it 作形式主语时，whether引导的主语从句放在句中或句末，此时可换用if. It is doubtful whether there’ll be any seats left.说不上是否还有座位了。
3.that 引导主语从句时，只起连接作用，不作任何成分，没有实际意义。
在句首时不可省略。
What引导主语从句时既要起连接作用，又要在从句中作主语或宾语，在任何情况下都不能省略，它具有具体意义，表示“什么，所……的（事、物、话）”，相当于all that/ everything that. Which 引导主语从句也作成分，它表示选择的意义，常译为“那个”。
如：That he survived in the earthquake is a miracle. 他在地震中幸免于难，这是个奇迹。
4.关系代词what, which, who引导主语、表语从句时含有疑问意义，而whatever,whichever, whoever在引导名词性从句时，往往比what, which, who更强调，不表示疑问意义。
而且whatever=all that/everything that; whichever=anything that;whoever=anyone who.另外，whatever=no matter what时引导状语从句。
如：Whatever is worth doing at all is worth doingwell.凡是值得做的事情都值得好好地做。
I语法填空。
使用正确连接词补全下列句子。
主语从句 表语从句
❖ It +be +-ed+ that从句 It is said that Mr. Green has arrived in Beijing. It is reported that China has sent another manmade earth satellite into space. 常见：It is well known that… It is believed that… It is thought that… It is understood that… It is announced that… It is suggested that… …
名词：suggestion, order, requirement, desire, demand, proposal, request, advice, insistence, command
-ed: suggested, ordered, required, desired, demanded, proposed，requested, advised, recommended
I heard (that) he has joined the football club.
That light travels in a straight line is known to all. 连词whether和if有意义（是否），在从句中不可省略。
I didn’t know whether/if he would attend the concert. ❖ 连接代词 who, whom, whose, what, which, whoever, whomever, whosever, whatever, whichever在从句中有各自的意义，在从句中可作主语、 宾语、定语和表语。
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主语从句和表语从句知识点1.名词性从句引导词的选择选择原则“缺什么，补什么，什么不缺，用that”“什么不缺，用that”的意思是：如果从句中不缺任何成分，而且句意完整时，就用that来引导主语从句或表语从句以及其他的名词性从句。
2.whether 意为“是否”，引导的主语从句放在句首，不能用if 代替；但当用it 作形式主语时，whether引导的主语从句放在句中或句末，此时可换用if. It is doubtful whether there’ll be any seats left.说不上是否还有座位了。
3.that 引导主语从句时，只起连接作用，不作任何成分，没有实际意义。
在句首时不可省略。
What引导主语从句时既要起连接作用，又要在从句中作主语或宾语，在任何情况下都不能省略，它具有具体意义，表示“什么，所……的（事、物、话）”，相当于all that/ everything that. Which引导主语从句也作成分，它表示选择的意义，常译为“那个”。
如：That he survived in the earthquake is a miracle. 他在地震中幸免于难，这是个奇迹。
4.关系代词what, which, who引导主语、表语从句时含有疑问意义，而whatever,whichever, whoever在引导名词性从句时，往往比what, which, who更强调，不表示疑问意义。
而且whatever=all that/everything that; whichever=anything that;whoever=anyone who.另外，whatever=no matter what时引导状语从句。
如：Whatever is worth doing at all is worth doing well.凡是值得做的事情都值得好好地做。
I语法填空。
使用正确连接词补全下列句子。
1.They lost their way in the forest and ______made matters worse was ______ nightbegan to fall.2.______ drives after drinking should be punished.3.It is said ______ Peter will have a chance to travel abroad next month.4.______ we fear when traveling in summer is the sudden change of weather.5.______ we will go camping tomorrow is up to you.6.I read about it in some book or other, does it matter ______ it was?7.______ of you comes in will be given a prize.8.______ he didn’t come yesterday is unknown.9.______we will go tomorrow hasn’t been decided yet.10.______ will be asked to accomplish the task is still discussed.II. 测试题1. ---I’ll ask the teacher about the attributive clause. I’m very puzzled about it.---That’s just ______most of our classmates have doubt.A.whatB. whyC. whereD. how2. His father got him a job in a bank but soon it became clear ______ he was not fit for that kind of work.A. whyB. whatC. whetherD. that3. It even leaves the scientists in wonder ______ they should call the newly-born creature, which looks half-human and half-animal.A. thatB. whyC. whatD. how4. The brave national spirits showed in the film The Flowers of war are ______deeply moved the audience.A. whichB. thatC. whatD. who5. ______ is surprising is that there are so many Chinese restaurants in Toronto.A. ItB. ThatC. SuchD. What6. ---Are you still thinking about yesterday’s party?---Oh, that’s______.A.what makes me feel excitedB. whatever I feel excited aboutC. how I feel about itD. when I feel excited7. Faced with challenges, you should believe your courage is ______ makes a difference.A. howB. thatC. whichD. what8. ______ is obviously right is to give all children equal opportunities to develop their special gift.A. ItB. AsC. ThatD. What9. The reson for Tom’s failure in the exam was ______ he didn’t work hard.A. whyB. becauseC. whetherD. that10. ______ is known to us all is that the old worker, for ______ life was hard in the past, still works hard in his seventies.A. As; whomB. What; whoseC. It; whoseD. What; whom11. What is concerning us greatly is ______ the workers held up in that area yesterday will be set free.A. thatB. whatC. whenD. which12. What the doctors really doubt is ______my mother will recover from the serious disease soon.A. whenB. ifC. whetherD. what13. The beautiful view and friendly people are ______ newcomers like the city.A. whenB. whatC. whereD. why14. ______ is known to us all is that the Chinese government has spared no efforts to protect people from fake food.A. AsB. ItC. ThatD. What15. At the evening party the host said ______ was able to solve the riddle could get a nice present as a reward.A. whoeverB. whoC. no matter whoD. whomeverIII. 根据汉语提示完成句子1.他想要做什么还不知道。
______ he ______ ______ ______ ______still unknown.2.不知道明天他是否会参加那个舞会______ ______ ______ ______ he will take part in the ball ______ ______ tomorrow.3.问题是我们如何帮助灾区人民重建家园The problem ______ ______ ______ ______ people in disaster areas rebuild their hometown.4.他的希望是她能很快减肥。
Her wish ______ ______ ______ ______ ______ ______ soon.5.很遗憾你没来参加展会。
______ ______ ______ ______ ______ you didn’t come to the party.IV. 改错题。
每句有一处错误，找出并改正。
1.Energy is that makes thing work.2.Go and get your bag. It’s there you left it.3.This is true that Lin Dan won a gold medal in Longon Olympic Games.4.What moved us most was what he looked after the old man for more than twentyyears.5.He was late again made his teacher angry.6.Your biggest fault is you think too much of yourself.7.My doubt is if he will go out with us.8.That’s something I ought to do.9.Professor Zhou will come is certain.10.That is needed for the space trip is careful preparation.11.That is because the brothers wanted to make a bet.12.It remains to be seen that we’ll succeed.13.The problem was whom could do the work.14.Who wins the first prize will be able to go abroad for further education.II. 单项选择1.What impresses me most is ______ he appears in front of others; he wears asincere and charming smile.A.whichB. thatC. whereD. that whenever2.______ I saw was two women quarreling in the street.A.WhatB. WhomC. WhoD. That3.______ she couldn’t understand was ______ her son didn’t want t tell her thetruth.A.What; whyB. That; whatC. What; becauseD. That; because4.---I had a bad headache and a high fever.---Is that ______ you had a few days off?A.whatB. whenC. whyD. where5.The reason ______many international students choose to study in the US was______ American colleges and universities offer a better education than those intheir local areas.A.that; becauseB. why; thatC. that; becauseD. why; because6.You are saying that everyone should be equal and this is ______ I disagree.A.whyB. whereC. whatD. how7.______ was unimportant.A.Whether he enjoyed our dinner or notB.No matter how enjoyed our dinnerC.If he enjoyed our dinnerD.What he enjoyed our dinner8.It is reported by the United Nations ______ the world’s population has reachedthe 7 billion mark.A.asB. whichC. thatD. whether9.______ was not the way the event happened.A. Which the press reportedB. That the press reportedC. What did the press reportD. What the press reported10. ______ team wins on Saturday will go through to the national championships.A. No matter whatB. No matter whichC. WhateverD. WhicheverIIII.1.______want to tell you is the deep love and respect I have for my parents.A.ThatB. WhichC. WhetherD. What2.From space, the earth looks blue. This is ______ about seventy-one percent of itssurface is covered by water.A.whyB. howC. becauseD. whether3.If the government fails to take effective measures, it is probable ______ Siberiantigers could disappear from China within 10 to 20 years.A.whyB. howC. whenD. that4.______ Jackie Chan shows to his fans is excellent martial arts and attractivepersonality.A.WhichB. WhatC. ThatD. Whom5.---Hi, Jane. You seem to be thinner than I saw you last time.--- Well, I’m preparing for my final examination. That’s ______I got thin.A.whenB. howC. whatD. whether6.---He likes to try something other people have never tried before.---Yes. That’s ______he is different from others.A.whereB. whenC. howD. what7.______she was invited to the ball made her very happy.A.IfB. WhenC. ThatD. Because8.It is none of your business ______ other people think about you. Believeyourself.A.howB. whatC. whichD. when9.As is known to us, knowledge is ______ can change your life.A.thatB. whatC. whichD. how10.______she teaches these children to speak English well receives attention of theparents.A.whatB. whichC. whereD. how11.One advantages of playing the guitar is ______ it can give you a great deal ofpleasure.A.howB. whyC. thatD. when12.As you expected, the problem troubling me at present is ______ my parentsdon’t allow me to travel to the United States alone.A.thatB. whetherC. howD. what13.The place ______ bridge is supposed to be built should be ______ the cross-rivertraffic is the heaviest.A.which; whereB. at which; whichC. at which; whereD. which; in which14.---I rang you at about nine, but there was no reply.---That was probably ______ I was seeing the doctor.A.whyB. whatC. thatD. when15.I can borrow him the book, but it is uncertain ______ he will give it back ontime.A. sinceB. whatC. whenD. whether。