高中英语名词性从句解析

高中英语名词性从句详解

高中英语语法名词性从句讲解

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

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 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

1. 主语从句在复合句作主语。

. Who will go is not important.

2. 用it作形式主语，主语从句放在句末。

. It doesnt matter so much whether you will come or not.

3. that引导主语从句时，不能省略。

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。一、引导名词性从句的连接词分类引导名词性从句的连接词可分为三类： 连词（5个）：that （宾语从句或表语从句中that有时可以省略） whether,if （均表示“是否”表明从句内容的不确定性） as if ,as though （均表示“好像”，“似乎”） 以上在从句中均不充当任何成分 连接代词（9个）：what, whatever, who, whoever, whom, whomever, whose, which, whichever 连接副词（7个）：when, where, how, why, whenever, wherever, however 不可省略的连词： 1. 介词后的连词 2. 引导主语从句和同位语从句的连词不可省略。 That she was chosen made us very happy. We heard the news that our team had won. 比较whether与if 均为"是否"的意思。 但在下列情况下，只可用whether： 1. whether引导主语从句并在句首 2. 引导表语从句 3. whether从句作介词宾语 4. 常与 "or not" 连用；if 则不可。 5. 引导同位语从句 Whether he will come is not clear. 大部分连接词引导的主语从句都可以置于句末，用 it充当形式主语。 It is not important who will go. It is still unknown which team will win the match. 二. 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，as if和because等连接代词what，who，which，whatever，whoever，whom等以及连接副词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。because引导表语从句。注：whom、who指人，what指物，whatever，whoever表示泛指意义。例如： 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。 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 suggested (requested, proposed, desired, etc.) that… 三、宾语从句名词从句用作宾语的从句叫宾语从句。引导宾语从句的关联词与引导主语从句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。 1. 由连接词that引导的宾语从句 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。例如： He has told me that he will go to Shanghai tomorrow. 他已经告诉我他明天要去上海。 We must never think (that) we are good in everything while others are good in nothing. 我们决不能认为自己什么都好，别人什么都不好。 注意：在demand、order、suggest、decide、insist, desire, request, command, doubt等表示要求、命令、建议、决定等意义的动词后，宾语从句常用“（should）+ 动词原形”。例如： I insist that she (should) do her work alone. 我坚持要她自己工作。 The commander ordered that troops (should) set off at once. 司令员命令部队马上出发。 2. 用who，whom, which, whose, what, when, where, why, how, whoever, whatever, whichever等关联词引导的宾语从句相当于特殊疑问句，应注意句子语序要用陈述语序。例如： I want to know what he has told you. 我想知道他告诉了你什么。 She always thinks of how she can work well. 她总是在想怎样能把工作做好。 She will give whoever needs help a warm support. 凡需要帮助的人，她都会给予热情的支持。 3. 用whether或if引导的宾语从句，其主语和谓语的顺序也不能颠倒，仍保持陈述句语序。此外，whether与if 在作“是否”的意思讲时在下列情况下一般只能用whether，不用if： a. 引导主语从句并在句首时；b. 引导表语从句时；c . 引导从句作介词宾语时；d. 从句后有“or not”时；e. 后接动词不定式时。例如： Whether there is life on the moon is an interesting question. 月球上有没有生命是个有趣的问题。 Everything depends on whether we have enough money. 一切要看我们是否有足够的钱。 I wonder whether he will come or not. 我想知道他来还是不来。 Can you tell me whether to go or to stay? 你能否告诉我是去还是留？ 4. 注意宾语从句中的时态呼应，当主句动词是现在时，从句根据自身的句子情况，而使用 不同时态。例如： I know (that) he studies English every day. （从句用一般现在时） I know (that) he studied English last term. （从句用一般过去时） I know (that) he will study English next year. （从句用一般将来时） I know (that) he has studied English since 1998. （从句用现在完成时） 当主句动词是过去时态（could, would除外），从句则要用相应的过去时态，如一般过去时，过去进行时，过去将来时等；当从句表示的是客观真理，科学原理，自然现象，则从句仍用现在时态。例如： The teacher told us that Tom had left us for America． 5. think, believe, imagine, suppose等等动词引起的否定性宾语从句中，要把上述主句中的动词变为否定式。即将从句中的否定形式移到主句中。例如： We don’t think you are here. 我们认为你不在这。 I don’t believe he will do so. 我相信他不会这样做。 四、表语从句在复合句中，位于系动词之后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致一样，表语从句位于连系动词后，有时用as if引导。其基本结构为：主语 + 系动词 + that从句。例如： The fact is that we have lost the game. 事实是我们已经输了这场比赛。 That’s just what I want. 这正是我想要的。 This is where our problem lies. 这就是我们的问题所在。 That is why he didn’t come to the meeting. 那就是他为什么不到会的原因。 It looks as if it is going to rain. 看上去天要下雨了。 需要注意的，当主语是reason时，表语从句要用that引导而不是because。例如： The reason why he was late was that he missed the train by one minute this morning . 【注意】whether 可引导表语从句，但与之同义的if却通常不用于引导表语从句。 五、同位语从句同位语从句说明其前面的名词的具体内容。同位语从句通常由that引导，可用于同位语从句的名词有advice、demand、doubt、fact、hope、idea、information、message、news、order、problem、promise、question、request、suggestion、truth、wish、word等。例如： The news that we won the game is exciting. 我们赢得这场比赛的消息令人激动。 I have no idea when he will come back home. 我不知道他什么时候回来。 The thought came to him that Mary had probably fallen ill. 他想到可能玛丽生病了。 同位语从句和定语从句的区别： that作为关系代词，可以引导定语从句，充当句子成分，在从句中作宾语时可以省略； that引导同位语从句时，起连词的作用，没有实际意义，不充当句子成分，一般不能省略。 试比较下面两个例句: I had no idea that you were here．（that引导同位语从句，不能省略） Have you got the idea（that）this book gives you of life in ancient Greece？（that引导定语从句，作宾语，可以省略） 六、名词性that-从句（1）由从属连词that引导的从句叫做名词性that-从句。That只起连接主句和从句的作用，在从句中不担任任何成分，本身也没有词义。名词性that-从句在句中能充当主 语、宾语、表语、同位语和形容词宾语，例如： 主语：That she is still alive is her luck. 她还活着全靠运气。 宾语：John said that he was leaving for London on Wednesday. 约翰说他星期三要到伦敦去。 表语：The fact is that he has not been seen recently. 事实是近来谁也没有见过他。 同位语：The fact that he has not been seen recently disturbs everyone in his office. 近来谁也没有见过他，这一事实令办公室所有的人不安。 形容词宾语：I am glad that you are satisfied with your job. 你对工作满意我感到很高兴。 2）That-从句作主语通常用it作先行词，而将that-从句置于句末，例如： It is quite clear that the whole project is doomed to failure. 很清楚，整个计划注定要失败。 It's a pity that you should have to leave. 你非走不可真是件憾事。 用it作形式主语的that-从句有以下四种不同的搭配关系： a. It + be +形容词+ that-从句 It is necessary that… 有必要…… It is important that… 重要的是…… It is obvious that… 很明显…… b. It + be + -ed 分词+ that-从句 It is believed that… 人们相信…… It is known to all that… 众所周知…… It has been decided that… 已决定…… c. It + be +名词+ that-从句 It is common knowledge that… ……是常识 It is a surprise that… 令人惊奇的是…… It is a fact that… 事实是…… d. It +不及物动词+ that-从句 It appears that… 似乎…… It happens that… 碰巧…… It occurred to me that… 我突然想起…… 七、名词性wh-从句1）由wh-词引导的名词从句叫做名词性wh-从句。Wh-词包括who, whom,. whose, whoever, what, whatever, which, whichever等连接代词和where, when, how, why等连接副词。Wh-从句的语法功能除了和that-从句一样外，还可充当介词宾语、宾语补语和间接宾语等，例如： 主语： How the book will sell depends on its author. 书销售如何取决于作者本人。 直接宾语：In one's own home one can do what one likes. 在自己家里可以随心所欲。 间接宾语：The club will give whoever wins a prize. 俱乐部将给得胜者设奖。 表语： My question is who will take over president of the Foundation. 我的问题是谁将接任该基金会主席职位。 宾语补足语：She will name him whatever she wants to. 她高兴给他起什么名字就取什么名字。 同位语： I have no idea when he will return. 我不知道他什么时候回来。 形容词宾语：I'm not sure why she refused their invitation. 我尚不能肯定她为什么拒绝他们的邀请。 介词宾语： That depends on where we shall go. 那取决于我们去哪儿。 2）Wh-从句作主语也常用先行词it做形式主语，而将wh-从句置于句末，例如： It is not yet decided who will do that job. 还没决定谁做这项工作。 It remains unknown when they are going to get married. 他们何时结婚依然不明。 八、if, whether引导的名词从句 1）yes-no型疑问从句从属连词if, whether引导的名词从句是由一般疑问句或选择疑问转化而来的，因此也分别被称为yes-no型疑问句从句和选择型疑问从句，其功能和wh-从句的功能相同， 例如： 主语：Whether the plan is feasible remains to be proved. 这一计划是否可行还有待证实。 宾语：Let us know whether / if you can finish the article before Friday. 请让我们知道你是否能在星期五以前把文章写完。 表语：The point is whether we should lend him the money. 问题在于我们是否应该借钱给他。 同位语：They are investigating the question whether the man is trustworthy. 他们调查他是否值得信赖。 形容词宾语： She's doubtful whether we shall be able to come. 她怀疑我们是否能够前来。 介词宾语： I worry about whether he can pass through the crisis of his illness. 我担心他是否能度过疾病的危险期。 2）选择性疑问从句选择性疑问从句由关联词if/whether…or或whether…or not构成，例如： Please tell me whether / if they are Swedish or Danish. 请告诉我他们是瑞典人还是丹麦人。 I don't care whether you like the plan or not.我不在乎你是否喜欢该计划。 if和whether的区别： 1、 在动词不定式之前只能用whether 。如： 例8 I can’t decide whether to stay. 我不能决定是否留下。 2、 在whether …… or not 的固定搭配中。如： 例9 I want to know whether it’s good news or not . 我想知道是否是好消息。 3 、在介词后，只能用whether。如： 例10 His father is worried about whether he lose his work . 他的父亲担心是否会失去工作。 4、宾语从句放在句首表示强调时，只能用whether 。如： Whether this is true or not, I really don’t know. 这是否真的，我真的不知道。 （例11 Whether they can finish the work on time is still a problem . 他们是否能准时完成这项工作还是个问题。－－此例为主语从句，有误，感谢指出） 5、用if会引起歧义时，只用whether。如： 例12 Could you tell me if you know the answer ? 这句话有两种意思：“你能告诉我是否知道答案吗？”或“如果你知道答案，请告诉我，好吗？”。如用whether可避免歧义. 九、否定转移1) 将think, believe, suppose, expect, fancy, imagine等动词后面宾语从句的否定词转移到主句中，即主句的谓语动词用否定式，而从句的谓语动词用肯定式。 I don't think I know you. 我想我并不认识你。 I don' t believe he will come. 我相信他不回来。 注意：若谓语动词为hope,宾语从句中的否定词不能转移。 I hope you weren't ill. 我想你没有生病吧。 2) 将seem, appear 等后的从句的否定转移到前面。 It doesn't seem that they know where to go. 看来他们不知道往哪去。 It doesn't appear that we'll have a sunny day tomorrow. 看来我们明天不会碰上好天气。 3) 有时将动名词，介词短语或整个从句的否定转变为对谓语动词的否定。 I don't remember having ever seen such a man. 我记得从未见过这样一个人。 (not否定动名词短语 having…) It's not a place where anyone would expect to see strange characters on the street. 在这里，人们不会想到在街上会碰上陌生的人。 (anyone 作主语，从句中的谓语动词不能用否定形式。) 4) 有时状语或状语从句中否定可以转移到谓语动词前。 The ant is not gathering this for itself alone. (否定状语) 蚂蚁不只是为自己采食。 He was not ready to believe something just because Aristotle said so. (否定because状语) 他并不因亚里斯多德说过如何如何，就轻信此事。 She had not been married many weeks when that man's younger brother saw her and was struck by her beauty. (否定状语many weeks) 她结婚还不到几个星期，这个人的弟弟就看见她了，并对她的美貌着了迷。

高中英语基础语法知识：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。

He is ill. That’s why he is absent. 他病了，这就是他缺席的原因。

The reason why he is absent is that he is ill. 他缺席的.原因是他生病了。

(3)宾语从句

就是在复合句中作宾语的从句。引导这宾语从句的连接词与引导主语从句的连接词基本相同。如：

They didn’t say which they wanted. 他们没有说他们想要哪一个。

I am sure (that) no harm will ever come to you. 我肯定你永远不会受伤害。

I was surprised at what has happened.我对发生的事感到惊讶。

注意：当think, believe, suppose等的疑问式后面跟连接代词或连接副词引导的宾语从句时，习惯上将这些连接词置于句首，即“连接代/副词+do you think /believe /expect+宾语从句的其余部分?”如：

Who do you think is the best player this year? 你认为今年谁是最佳运动员?

What do you suppose you will do after school? 你想放学后干什么?

(4)同位语从句

就是在句中作同位语的从句。它通常有放在thought, idea, news, word(=news), plan, doubt, question, fact, suggestion, belief等抽象名词的后面，说明这些词的具体内容或含义。同位语从句大多由that引导，也可由whether, how, when, where, why等引导，但不能由which引导。如：

The idea that the earth is round is not a new one. “地球是圆的”这种观点并不新鲜。

He must answer the question whether he agrees to it or not. 他必须回答他是否同意此事这们一问题。

I have no idea when he will set out. 我不知他什么时候出发。

注：有时，同位语从句并不紧跟在它所说明的词的后面。如：

The whole truth came out at last that he was a wolf in sheep’s clothing. 真相终于大白了，他原来是一只披羊皮的狼。

高中英语名词性从句解析

（这里因为篇幅有限，所以并不是特别详细，其实可以买一本语法书看看，比较实在，网上看东西会比较浮躁，看书的效果最好！）【一、定语从句】定义：在复合句中作定语用修饰句子中某一名词或代词的从句叫定语从句。① 定语从句的位置：放在名词或代词的后面。如：The man who has an umbrella in his hand is my uncle. (手上抓了一把雨伞的人是我的叔叔。)② 语法术语的改变：被修饰的名词或代词称为先行词；引导定语从句的连接词称为关系词,其中that、which、who称为关系代词,where、when、how称为关系副词。③ 关系代词或关系副词的作用：关系代词who、whom 和whose指人,分别在从句中作主语、宾语和定语。which指物that多指物, 有时也指人,它们在从句中可以作主语或宾语。定语从句中关系代词作从句宾语时可以省略。This is the thief (that/who/whom) we have been looking for these days. (这个就是我们近日一直在找的小偷。) / Please find a room which is big enough for all of us to live in. (请找一间足够大能住下我们全体的房间。)关系副词when或where引导定语从句时,它们在从句中分别作时间状语和地点状语。如：This is the room where they had a quarrel a week ago. (这是一个星期前他们吵架的房间。) / I can never forget the day when I first saw you. (我永远不会忘记第一次见到你的日子。) ④ 限制性定语从句和非限制性定语从句。限制性定语从句在句中不能省略,否则主句意思就不完整。非限制性定语从句和主句之间往往用逗号分开,这种从句是一种附加说明,如果从句子中省去,也不致于影响主句的意思。如：She spent the whole evening talking about her latest book, which none of us had heard of. (她一个晚上都在谈论她最近的书,我们一个人都没有听说过那本书。)[注解]1、关系代词只能用that的情况：当先行词是指事物的不定代词(all, anything等),或先行词部分含有最高级,或含有序数词时,不能用其他的关系代词,只能用that. 如：All that Lily told me seems untrue. (Lily告诉我的话似乎不真实。) / Can you give me anything that has no sugar inside? (能不能给我点里面没有糖的东西？) / This is the first two-story bus that runs in our city. (这是第一辆运行于我市的双层公交车。) 2、关系代词在从句中作主语时一般用who(指人)、that(指物),而不用that指人或用which指物。 如：Do you know the woman who is weeping in the corner? (你认识那个在角落里哭泣的女人吗？) / Do not tell me any words that have nothing to do with me. (跟我无关的话,请一个字也不要说。)3、关系代词作从句的宾语时,常用which或whom,较少使用that或who,而且,关系代词常常省略。如：Tom’s father was the first parent whom our teacher talked to. (Tom的父亲是我们老师第一个谈话的人。) 4、当关系代词紧跟在介词后面时,必须用which或whom,而当介词移到句尾时,则又可以使用that或who. 如：This is the room in which Miss Li once lived. (= This is the room Miss Li once lived in.) (这是李小姐曾经居住过的房间。)【二、名词性从句】一、名词性从句的三类连词 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。根据这些从句的共同特性，名词性从句的连词主要可以分成三类：that, if/ whether和wh-(疑问词)。1．如果一个陈述句被用来作为另一个句子的主语、表语、宾语或同位语，那么我们一般要用that作为连词。that本身在句子中没有意思，只起连接作用。 eg. 陈述句：Science is developing very fast. 主语从句：It is known to all that science is developing very fast. 表语从句：The fact is that science is developing very fast. 宾语从句：Everyone knows that science is developing very fast. 同位语从句：The fact that science is developing very fast is known to ．如果一个一般疑问句被用来作为另一个句子的主语、表语、宾语或同位语，那么我们要用whether或if作为连词。whether/ if在句子中的意思是“是否”。变成名词性从句后，原来的疑问句的词序要改成陈述句的词序（主语+谓语）。 eg. 一般疑问句：Shall we have a meeting this afternoon? 主语从句：Whether we shall have a meeting this afternoon hasn’t been decided yet. 或：It hasn’t been decided yet whether we shall have a meeting this afternoon. 表语从句：The question is whether we shall have a meeting this afternoon. 宾语从句：Do you know whether we shall have a meeting this afternoon? 同位语从句：None of us can answer the question whether we shall have a meeting this afternoon. 注意：原来的疑问句词序在从句中都被改变成陈述句的词序，复合句的标点符号由主句的句型决定。3．如果一个特殊疑问句被用来作为另一个句子主语、表语、宾语或同位语，那么我们就保留原来的疑问词作为连词，这些疑问词的意思也保留在从句中。变成名词性从句之后，原来的疑问句的词序要改成陈述句的词序（主语+谓语） eg. 特殊疑问句：Why did the water become smelly? 主语从句：Why the water became smelly must be found out immediately. 表语从句：The problem is why the water became smelly. 宾语从句：Scientists are trying to find out why the water became smelly. 同位语从句：Scientists are trying to solve the problem why the water became smelly. 注意：跟由一般疑问句被用来作为名词性从句一样，特殊疑问句作名词性从句时，原来的疑问句词序在从句中都要改变成陈述句的词序，复合句的标点符号也由主句的句型决定。 此外，还要注意，当特殊疑问句问的主语时，句子的词序就是陈述句的词序，如“Who helped you at that time?”“What happened to him later?”“What’s the matter with you?”“What’s wrong with the computer?”，所以这些句子如充当名词性从句时，词序就不用再变了。 eg. I don’t know what’s wrong with the computer.【同位语从句与定语从句的区别】： cf. A) The information that the film star is seriously ill is not reliable.（同位语从句） The information that you got from the internet is not reliable. （定语从句） B) The news that she told me is too good to believe. （定语从句） The news that I have been admitted into the university is too good to believe. (同位语从句)这里有俩个高考例题（很容易做错！可以仔细体会一下）： 【1】A modern city has been set up in____ was a wasteland ten years ago.(2004 天津)A. what B. whichC .that D. where此题解答时，易把汉语的习惯移植进去：十年前曾是一片废墟的地方，从而误选D。本题中，空格及空格后面的部分共同做介词in的宾语。而在这个宾语从句中，空格部分又要做主语。毫无疑问，where是副词的性质，从来只能做状语，决不可能做主语。同时本题有没有给定一个供选择的范围，所以排除了which。正确答案是A【2】A fast food restaurant is the place ____, just as the name suggests, eating is performed quickly. A. which B. where C. there D. what选B。因为在本句中，先行词是place，同时我们还可以看到后面的从句eating is performed quickly不缺主语，或宾语，所以用关系副词where。整个句子的意思是：快餐店，正如它的名字所示，就是一个很快的餐的地方。

高中英语基础语法知识：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。

He is ill. That’s why he is absent. 他病了，这就是他缺席的原因。

The reason why he is absent is that he is ill. 他缺席的.原因是他生病了。

(3)宾语从句

就是在复合句中作宾语的从句。引导这宾语从句的连接词与引导主语从句的连接词基本相同。如：

They didn’t say which they wanted. 他们没有说他们想要哪一个。

I am sure (that) no harm will ever come to you. 我肯定你永远不会受伤害。

I was surprised at what has happened.我对发生的事感到惊讶。

注意：当think, believe, suppose等的疑问式后面跟连接代词或连接副词引导的宾语从句时，习惯上将这些连接词置于句首，即“连接代/副词+do you think /believe /expect+宾语从句的其余部分?”如：

Who do you think is the best player this year? 你认为今年谁是最佳运动员?

What do you suppose you will do after school? 你想放学后干什么?

(4)同位语从句

就是在句中作同位语的从句。它通常有放在thought, idea, news, word(=news), plan, doubt, question, fact, suggestion, belief等抽象名词的后面，说明这些词的具体内容或含义。同位语从句大多由that引导，也可由whether, how, when, where, why等引导，但不能由which引导。如：

The idea that the earth is round is not a new one. “地球是圆的”这种观点并不新鲜。

He must answer the question whether he agrees to it or not. 他必须回答他是否同意此事这们一问题。

I have no idea when he will set out. 我不知他什么时候出发。

注：有时，同位语从句并不紧跟在它所说明的词的后面。如：

The whole truth came out at last that he was a wolf in sheep’s clothing. 真相终于大白了，他原来是一只披羊皮的狼。

一、引导名词性从句的连接词分类 引导名词性从句的连接词可分为三类： 连词（5个）：that（宾语从句或表语从句中that有时可以省略） whether,if（均表示“是否”表明从句内容的不确定性） as if ,as though（均表示“好像”，“似乎”） 以上在从句中均不充当任何成分 连接代词（9个）：what, whatever, who, whoever, whom, whomever, whose, which, whichever 连接副词（7个）：when, where, how, why, whenever, wherever, however 不可省略的连词： 1. 介词后的连词 2. 引导主语从句和同位语从句的连词不可省略。 That she was chosen made us very happy. We heard the news that our team had won.比较 whether与if 均为"是否"的意思。 但在下列情况下，只可用whether： 1. whether引导主语从句并在句首 2. 引导表语从句 3. whether从句作介词宾语 4. 从句后有"or not" 5. 引导同位语从句 Whether he will come is not clear. 大部分连接词引导的主语从句都可以置于句末，用 it充当形式主语。 It is not important who will go. It is still unknown which team will win the match.定语从句及相关术语定语从句 定语从句是由关系代词或关系副词引导的从句，其作用是作定语修饰主句的某个名词性成分，相当于形容词，所以又称为形容词性从句，一般跟在它所修饰的先行词后面。在复合句中，修饰某一名词或代词叫做定语从句。关系词 引导定语从句的关联词称为关系词，关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as等，绝对没有what；关系副词有where, when, why等。关系词常有3个作用： ①连接作用，引导定语从句。 ②代替主句中的先行词，甚至可能是主句中的一部分或者整个主句。 ③在定语从句中充当一句子成分。 注：关系代词有主语、宾语之分。一般whom作为宾语。关系代词在从句中作主语，宾语，表语，定语等，关系副词在从句中作地点状语，时间状语，原因状语等。定语 定语用来限定、修饰名词或代词的，是对名词或代词起修饰、限定作用的词、短语（动词不定式短语、动名词短语和分词短语）或句子，汉语中常用‘……的’表示。主要由形容词担任，此外，名词，代词，数词，分词，副词，不定式以及介词短语也可以来担任，也可以由一个句子来担任。单词作定语时通常放在它所修饰的词之前，作前置定语。短语和从句作定语时则放在所修饰的词之后，作后置定语。先行词 被定语从句修饰的名词、代词称为先行词。编辑本段关系代词引导的定语从句举例 关系代词所代替的先行词是人或物的名词或代词，并在从句中充当主语、宾语、定语等成分。关系代词在定语从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。who, whom, that 这些词代替的先行词是人的名词或代词，who做主语指人，whom作宾语指人，that既可作主语又可作宾语（作宾语可以省略），可以指人也可以指物。在从句中所起作用如下： (1) Is he the man who/that wants to see you? 他就是想见你的人吗？（who/that在从句中作主语） (2) He is the man whom/ that I saw yesterday. 他就是我昨天见的那个人。（whom/that在从句中作宾语）Whose 用来指人或物 (只用作定语, 若指物，它还可以同of which互换，指人的时候也可以用of whom 代替） (1) They rushed over to help the man whose car had broken down. 那人车坏了，大家都跑过去帮忙。 (2) Please pass me the book whose (of which) color is green. 请递给我那本绿皮的书。which, that 它们所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等，作宾语时可以省略，例如： (1) A prosperity which / that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣。（which / that在句中作主语） (2) The package (which / that) you are carrying is about to come unwrapped. 你拿那个包裹快要散开了。(which / that在句中作宾语） 4、 as as 可以做主语，也可以作宾语，作宾语时可以省略，指人或者物。常与such as,the same as等短语连用。编辑本段限定性定语从句关系代词 关系代词：在句中作主语、宾语或定语 1. that既可代表事物也可代表人，which代表事物；它们在从句中作主语或宾语，that在从句中作宾语时常可省略关系词，which在从句中作宾语也可以省略。[eg：This is the book （which）you want.] 2. 如果which在从句中作“不及物动词＋介词”的介词的宾语，注意介词不要丢掉，而且介词总是放在关系代词which的前边，但有的则放在它原来的位置 3. 代表物时多用which，但在下列情况中用that而不用which： a)先行词是anything, everything, nothing , none等不定代词时； b)先行词由every, any, all, some, no, little, few, much等修饰时，这时的that常被省略； c)先行词前有序数词或被形容词最高级修饰时； d)先行词中既有人又有物时； e)整个句中前面已有which，who,that时； f)当先行词为物并作表语时； g)先行词为one时； h)先行词同时又被the only,the very,the same修饰时； 4. who和whom引导的从句用来修饰人，分别作从句中的主语和宾语，whom作宾语时，要注意它可以作动词的宾语也可以作介词的宾语 5. whose是关系代词，修饰名词作定语，相当于所修饰成分的前置所有格.它引导的从句可以修饰人和物, 当它引导的从句修饰物体时, 可以与 of which 调换,表达的意思一样。关系副词 关系副词：在句中作状语 关系副词=介词+关系代词 why=for which where=in/ at/ on/ ... which (介词同先行词搭配) when=during/ on/ in/ ... which (介词同先行词搭配) 1. where是关系副词，用来表示地点的定语从句。 2. when引导定语从句表示时间〔注〕值得一提的是，表示时间“time"一词的定语从句只用when引导，有时不用任何关系代词，当然也不用that引导。 By the time you arrived in London, we had stayed there for two weeks. 到你到达伦敦的时候，我们在那里已经待了两个星期。 I still remember the first time I met her. 我仍然记得我第一次见到她。 Each time he goes to business trip, he brings a lot of living necessities, such as towels, soap, toothbrush etc。 每一次他去出差，他带来了生活必需品，如毛巾，肥皂，牙刷等，很多。 3. 当从句的逻辑主语是some, any, no, somebody, anybody, nobody, something, anything, everything或nothing时，常用there is来引导 There is somebody here who wants to speak to you. 这里有人要和你说话。 非限制性定语从句的作用是对所修饰的成分作进一步说明，通常是引导词和先行词之间用逗号隔开，将从句拿掉后其他部分仍可成立编辑本段非限制性定语从句 1. which引导的非限定性定语从句作用是说明前面整个句子的情况或主句的某一部分 2.当先行词是专有名词、物主代词或指示代词所修饰时，其后的定语从句通常是非限制性的，例如： Charles Smith, who was my former teacher, retired last year. 查理·史密斯去年退休了，他曾经是我的老师。 My house, which I bought last year, has got a lovely garden. 我去年买的的那幢房子带着个漂亮的花园。 This novel, which I have read three times, is very touching. 这本小说很动人，我已经读了三遍。 3.非限定性定语从句可将整个主句作为先行词, 对其进行修饰, 这时从句谓语动词要用第三人称单数，例如： He seems not to have grasped what I meant, which greatly upsets me. 他似乎没抓住我的意思，这使我心烦。 Liquid water changes to vapor, which is called evaporation. 液态水变为蒸汽，这就叫做蒸发。 4. 有时as也可用作关系代词 5. 在非限定性定语从句中，不能用关系副词why和关系代词that，而用who, whom代表人，用which,whose代表事物，如果需要用why，可用for which代替.； : which引导的非限制性定语从句其后不可省略成分，as可以编辑本段关系代词引导的定语从句who指人在从句中做主语 (1) The boys who are playing football are from Class One. 在踢足球的男孩们是一班的. (2) Yesterday I helped an old man who lost his way. 昨天，我帮助了一个迷路的老人.whom指人 在定语从句中充当宾语，常省略。（注：who和whom已无太大区别，基本可以通用。区别是who可以做主语而whom不可以，whom前可以加介词如to whom，但是who不可以） (1) Mr. Liu is the person (whom) you talked with on the bus. 刘先生就是在公交车上和你聊天的那个人. (2) Mr. Ling is just the boy(whom)I want to see. 凌先生恰巧就是我想见的那个男孩. (3) The man who/whom you met just now is my friend. 你刚刚见到的那个人就是我的朋友. 注意：关系代词whom在口语和非正式语体中常用who代替，可省略。 如果在从句中做宾语,就用whom或who.比如: He is the man whom/who I talk to. 他就是那个和我聊天的男人. 如果是在从句中作主语就只能用who.比如: He is the man who has an English book. 他就是那个有英语书的男人.whose通常指人也可指物 在定语从句中做定语。 (1) He has a friend whose father is a doctor. 他有一个朋友的父亲是医生. (2) I once lived in a house whose roof has fallen in. whose指物时通常以以下结构来代替 (3) The classroom whose door is broken will soon be repaired.那个门被打破的教室不久会被修复。 (4) The classroom the door of which is broken will soon be repaired.课堂门，被打破会不久被修复。 (5) Do you like the book whose color is yellow?你喜欢颜色是黄色的书吗? (6) Do you like the book the color of which is yellow?你喜欢的书的颜色，是黄色吗? which指物 在定语从句中做主语，表语，定语或者宾语，做宾语时可省略。 (1) Football is a game which is liked by most boys. 足球是大多数男孩都喜欢的游戏. (2) This is the pen (which) he bought yesterday. 这是他昨天刚买的钢笔.that指人时 相当于who或者whom；指物时，相当于which。 在定语从句中做主语,表语或者宾语，做宾语时可省略。 (5) The number of the people that/who come to visit the city each year rises one million.数目的人民那个/谁来城市观光每年上升之一个百万 (6) Where is the man that/whom I saw this morning?那个男人在哪里/我看见谁了今天早上?编辑本段关系副词引导的定语从句when指时间 在定语从句中做时间状语也可做连接词用 (1) I still remember the day when I first came to the school. (2) The time when we got together finally 指地点 在定语从句中做地点状语 (1) Shanghai is the city where I was born. (2) The house where I lived ten years ago has been pulled 指原因 在定语从句中做原因状语 (1) Please tell me the reason why you missed the plane. (2) I don’t know the reason why he looks unhappy today. 注意：关系副词引导的从句可以由“介词+关系代词”引导的从句替换 (1) The reason why/ for which he refused the invitation is not clear, (2) From the year when/in which he was going to school he began to know what he wanted when he grew up.编辑本段介词和关系代词 1）介词后面的关系代词不能省略。 2）that前不能有介词。 3） 某些在从句中充当时间，地点或原因状语的"介词+关系词"结构可以同关系副词when ,where和why 互换。 This is the house in which I lived two years ago. This is the house where I lived two years ago. Do you remember the day on which you joined our club? Do you remember the day when you joined our club? This is the reason why he came late. This is the reason for which he came late. 介词+关系代词引导的定语从句关系代词在定语从句中做介词宾语时 从句常由介词+关系代词引导 当介词放在关系代词前面时，关系代词只能用which/whom即“介词+which/whom"且不能省略。但当介词位于末尾时可用that/which/who/whom.作介词的宾语，且可以省略。例如： (1) The school (that/which) he once studied in is very famous."that/which"可以省略 = The school in which he once studied is very famous."which”不可省略 (2) Tomorrow I will bring here a magazine (that/which) you asked for. = Tomorrow I will bring here a magazine for which you asked. (3) We’ll go to hear the famous singer (whom/that/who) we have often talked about. = We’ll go to hear the famous singer about whom we have often talked. 注意： 1. 含有介词的动词短语一般不拆开使用，如：look for, look after, take care of等 T This is the watch which/that I am looking for. (T＝正确) F This is the watch for which I am looking. (F＝错误) 2. 若介词放在关系代词前，关系代词指人时用whom，不可用who或者that；指物时用which，不能用that；关系代词是所有格时用whose (1) The man with whom you talked is my friend. (T) The man with that you talked is my friend. (F) (2) The plane in which we flew to Canada is very comfortable. (T) The plane in that we flew in to Canada is very comfortable. (F) 3. “介词+关系代词”前可有some, any, none, both, all, neither, most, each, few等代词、数词或者名词。 (1) He loved his parents deeply, both of whom are very kind to him. (2) In the basket there are quite many apples, some of which have gone bad. (3) There are forty students in our class in all, most of whom are from big cities. （4）The boat, the name of which is Topsail, is famous. （5）I bought many books yesterday, three of which are written by Lu Xun.关系代词 关系代词（一般情况下）that 可用在从句做主语，谓动词的宾语，但是不能做介词的宾语。 which指物，在从句中作主语，谓语或宾语； who在从句中作主语； whom在从句中作宾语； where在从句中修饰表地点的名词，做地点状语； when在从句中通常修饰表时间的名词，做时间状语； why在从句中做原因状语，先行词通常是"reason" 有时why也可用for+which代替。 例：A doctor is a person ‖who looks after people's health. 主语 谓语 先行词 定语从句修饰先行词判断介词和关系代词 方法一： 用关系代词，还是关系副词完全取决于从句中的谓语动词。不及物动词后面无宾语，就必须要求用关系副词或者是介词加关系代词；而及物动词后接宾语，则要求用关系代词。例如： This is the mountain village where I stayed last year. I'll never forget the days when I worked together with you. 判断改错（注：先显示题，再显示答案，横线；用不同的颜色表示出。） （错） This is the mountain village where I visited last year. （错） I will never forget the days when I spent in the countryside. （对） This is the mountain village (which) I visited last year. （对） I'll never forget the days (which) I spent in the countryside. 习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。此两题错在关系词的误用上。 方法二： 准确判断先行词在定语从句中的成分(主、谓、宾、定、状)，也能正确选择出关系代词/关系副词。 例1. Is this museum ___ you visited a few days ago? A. where B. that C. on which D. the one 例2. Is this the museum ____ the exhibition was held? A. where B. that C. on which D. the one 答案：例1 D，例2 A 例1变为肯定句： This museum is ___ you visited a few days ago. 例2变为肯定句： This is the museum ___ the exhibition was held. 在句1中，is后应跟表语，只有the one可以，而后面的you visited a few days ago则做one的定语从句。 而句2中, 主、谓、宾俱全，从句部分为句子的状语表地点，既可用副词where，又因 in the museum词组，可用介词in + which 引导地点状语。而此题中，介词on 用的不对，所以选A。 关系词的选择依据在从句中所做的成分，先行词在从句中做主、定、宾语时，选择关系代词 (who, whom, that, which, whose)； 先行词在从句中做状语时，应选择关系副词 ( where 地点状语，when 时间状语，why 原因状语) 。

高中英语语法名词性从句讲解

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

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 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

1. 主语从句在复合句作主语。

. Who will go is not important.

2. 用it作形式主语，主语从句放在句末。

. It doesnt matter so much whether you will come or not.

3. that引导主语从句时，不能省略。

高中英语名词性从句讲解

高中英语基础语法知识：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。

He is ill. That’s why he is absent. 他病了，这就是他缺席的原因。

The reason why he is absent is that he is ill. 他缺席的.原因是他生病了。

(3)宾语从句

就是在复合句中作宾语的从句。引导这宾语从句的连接词与引导主语从句的连接词基本相同。如：

They didn’t say which they wanted. 他们没有说他们想要哪一个。

I am sure (that) no harm will ever come to you. 我肯定你永远不会受伤害。

I was surprised at what has happened.我对发生的事感到惊讶。

注意：当think, believe, suppose等的疑问式后面跟连接代词或连接副词引导的宾语从句时，习惯上将这些连接词置于句首，即“连接代/副词+do you think /believe /expect+宾语从句的其余部分?”如：

Who do you think is the best player this year? 你认为今年谁是最佳运动员?

What do you suppose you will do after school? 你想放学后干什么?

(4)同位语从句

就是在句中作同位语的从句。它通常有放在thought, idea, news, word(=news), plan, doubt, question, fact, suggestion, belief等抽象名词的后面，说明这些词的具体内容或含义。同位语从句大多由that引导，也可由whether, how, when, where, why等引导，但不能由which引导。如：

The idea that the earth is round is not a new one. “地球是圆的”这种观点并不新鲜。

He must answer the question whether he agrees to it or not. 他必须回答他是否同意此事这们一问题。

I have no idea when he will set out. 我不知他什么时候出发。

注：有时，同位语从句并不紧跟在它所说明的词的后面。如：

The whole truth came out at last that he was a wolf in sheep’s clothing. 真相终于大白了，他原来是一只披羊皮的狼。

高中英语语法名词性从句讲解

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

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 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

1. 主语从句在复合句作主语。

. Who will go is not important.

2. 用it作形式主语，主语从句放在句末。

. It doesnt matter so much whether you will come or not.

3. that引导主语从句时，不能省略。

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、同位语等。因此根据它在句中不同的句法功能，名词性从句又分主语从句、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 引导名词性从句的连接词可分为三类： 从属连词： (不充当从句的.任何成分) 连接代词：what、whatever、who 、whoever、 whom 、whomever、 whose 、which、 whichever 连接副词： 等 ★不可省略的连词：1.介词后的连词 2.引导主语从句和同位语从句的连词 名词性从句的重难点 一 、名词性从句的语序 ( 语序) 二 、名词性从句引导词间的区别 1 、 whether 与 i f 的区别 whether 与if均为是否的意思。但在以下情况下，whether不能被if取代： ⑴whether引导表语从句和同位语从句时 ⑵在主语从句中，若用it做形式主语，if / whether均可;否则，只用whether we will attend the meeting hasnt been decided It hasnt been decided whether / if we will attend the meeting. ⑶引导介词后的宾语从句时

高中英语名词性从句讲解视频

高中英语语法名词性从句讲解

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

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 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

1. 主语从句在复合句作主语。

. Who will go is not important.

2. 用it作形式主语，主语从句放在句末。

. It doesnt matter so much whether you will come or not.

3. that引导主语从句时，不能省略。

1、名词性从句，即指性质相当于名词的从句，它包括主语从句、宾语从句、表语从句和同位语从句。从高考的考查的实际情况来看，名词性从句考得最多的是宾语从句，其次是主语从句，再次是表语从句，而同位语从句则很少考查。2、连接词that引导名词性从句时，只起连接作用，没有任何意思，也不充当句子成分，在宾语从句中可省略，但引导其他名词性从句时通常不省略。如：Ihope(that)youenjoyyourholiday.希望你假期过得好。Thathelikesyouisveryobvious.很显然他喜欢你。3、连接词whether引导名词性从句也不充当句子成分，但有自己的意思，表示“是否”；引导宾语从句时，可换成if，但引导其他名词性从句时不能换成if。如：Heaskedwhether[if]Iwouldshowhimtheway.他问我是否可以给他带路。Whetheritwilldousharmremainstobeseen.是否对我们有害还要看一看。(引导主语从句，不能用if代替whether)4、连接代词who(m),whose,which,what等引导名词性从句时，均有各自的意义，在从句中作主语、宾语、定语等。如：That’swhyshewantedtoleave.这就是她想离开的原因。Whenwearrivedoesntmatter.什么时候到没有关系。Tellmewhichoneyoulikebest.告诉我你最喜欢哪一个。5、连接副词when,where,why,how等引导名词性从句，也各自有自己的意义，在从句中作状语。如：Thequestionishowweshouldcarryouttheplan.问题是怎样执行这个计划。Whenshe’llbebackdependsmuchontheweather.她什么时候回来在很大程度上要看天气。Whyhediditwillremainapuzzleforever.他为什么这样做将永远是一个谜。

语法复习三：名词性从句 在前面我们已经知道了什么是句子.我们可以这样解释什么叫从句:在一个句子的前面加上一个连接词,这个句子就变成了从句.如果这个从句做了主语,它就是主语从句.其它的以此类推. 注: 1.特殊疑问句本身可以做从句,它不需要加连接词. 2.所有的从句要使用陈述语序. 陈述语序: 句子第一个词永远是主语;第二个词可能是情态动词\助动词等加上动词,或者是动词本身. 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，名词性从句分为主语从句、表语从句、宾语从句和同位从句。 名词性从句,顾名思义,它具有名词性.所以可以作主语,宾语等等.回忆一下句子成分那一章 （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 （二）主语从句 1、主语从句在复合句作主语。 Who will go is not important. 2、用it作形式主语，主语从句放在句末。 It doesn’t matter so much whether you will come or not. 3、that引导主语从句时放在句首时，不能省略。 That he suddenly fell ill last week made us surprised. 实用例句: Is it true that he will be punished seriously by the headmaster? Does it make any difference who bought these gifts? How strange it is that these children are so quiet! 注意: 表示是否,只能使用whether. （三）表语从句 1、表语从句在复合句中作表语，位于系动词之后。 The question was who could go there. 2、引导表语从句的连接词that有时可省去。 My idea is (that) we can get more comrades to help in the work. 注意: 表示是否,只能使用whether. （四）宾语从句 1、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。 I hope (that) everything is all right. 2、介词之后的宾语从句，不可用which或if连接，要分别用what或 whether。 I’m interested in whether you’ve finished the work.. I’m interested in what you’ve said. 3、whether与if都可以引导宾语从句，常可互换。但下面情况不能互换。 if和whether区别 ①宾语从句是否定句时，只用if，不用whether。 . I wonder if it doesn’t rain. ②用if 会引起误解，就要用whether。 . Please let me know whether you want to go.（此句如果把whether改成if， 容易当成条件句理解） ③宾语从句中的whether 与or not直接连用，就不能换成if；不直接连用，可换。 . I don’t know whether or not the report is true. I don’t know whether/ if the report is true or not. ④介词后的宾语从句要用whether引导。whether 可与不定式连用。whether也可引导主语从句、表语从句、同位语从句，还可引导让步状语从句，以上均不能换成if。但引导条件从句时，只能用if，而不能用whether。 It depends on whether we have enough time. They don’t know whether to go there. Please come to see me if you have time. 状语从句 实用例句: 使用it作形式宾语 I thought it impossible that he could finish this job in just two hours. He left it to my judgment whether we should continue this project. 注意: 形式主语和形式宾语只有一个替代词: it （五）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, idea, suggestion, promise等）之后，说明该名词的具体内容。 I have no idea when he will be back. The fact that he had not said anything surprised everybody 一、判断下列各句哪句含有名词性从句，并指出是什么从句： 1. China is no longer what it used to be. 2. The truth that the earth turn around the sun is known to all. 3. It was snowing when he arrived at the station. 4. How he persuaded the manager to change the plan is interesting to us all. 5. The news that they had won the game soon spread over the whole school. 6. The news that you told me yesterday was really disappointing. 7. That is where Lu Xun used to live. 8. He spoke as if he understood what he was talking about. 9. Do you remember the teacher who taught us English at middle school? 10. I wonder why she refused my invitation. 参考答案: 1、表语从句；2、同位语从句；3、不是；4、主语从句；5、同位语从句；6、不是；7、表语从句；8、宾语从句；9、不是；10、宾语从句 二、用适当的连词填空： 1. I can’t decide ____________ dictionary I should buy. 2. That’s ____________ he refused my invitation. 3. I am very interested in ____________ he has improved his pronunciation in such a short time. 4. ____________ we need is more time. 5. The fact ____________ she had not said anything at the meeting surprised everybody. 6. ____________ and ____________ they will meet has not been decided yet. 7. Please tell me ____________ you are waiting for. 8. Is that ____________ you are looking for? 9. Would you please tell me ____________ the nearest post office is? 10. I don’t know ____________ he will agree to the plan or not. 参考答案: 1. which; 2. why; 3. how; 4. What; 5. that; 6. when, where; 7. who(m); 8. what; 9. where; 10. whether 三、选择填空： 1. Do you see _____ I mean? A. that B./ C. how D. what key: D 宾语从句 that引导宾语从句无词义,也不作成分.mean是及物动词,必须有宾语.所以不选A; how是副词,也不能作mean的宾语.what I mean, what I did, what I said,等是一个非常重要的名词结构. 2. Tell me_____ is on your mind. A. that B. what C. which D. why key: B what is on your mind 是what名词结构．句意：告诉我你的心事． 3. We must stick to _____ we have agreed on. A. what B. that C. / D. how key: A 4. Let me see _____. A. that can I repair the radio B. whether I can repair the radio C. I can repair the radio D. whether can I repair the radio key: B 从句使用陈述语序 注意选项C可以看成是省略了that的宾语从句,在语法上来讲它是正确的,但语义不通. 5. Keep in mind _____. A. that the teacher said B. what did the teacher say C. that did the teacher say D. what the teacher said key: D what名词结构作keep宾语. 6. Could you advise me _____? A. which book should I read first B. what book should I read first C. that book I should read first D. which book I should read first key: D 7. He was criticized for _____. A. he had done it B. what he had done C. what had he done D. that he had done it key: B 8. Would you kindly tell me _____? A. how can I get to the Beijing Railway Station B. how I can get to the Beijing Railway Station C. where can I get to the Beijing Railway Station D. whether can I get to the Beijing Railway Station key: B 9. Mrs. Smith was very much impressed by _____. A. what had she seen in China B. that she had seen in China C. what she had seen in China D. which had she seen in China key: C 10. We took it for granted ___ A. that they were not coming B. that were they not coming C. they were coming not D. were they not coining key: A 11. I really don't know _____ A. I should do next B. what should I do next C. what I should do next D. how I should do next key: C 12. I'm afraid _____. A. the little girl will have to be operated on B. that will the little girl have to operate on C. the little girl will have to operate on D. that will the little girl have to be operated on key: A 13. She walked up to _____ . A. where did I stand B. where I stood C. I stood there D. where I stood there key: B where I stood 我站的地方 14. Can you tell me _____? A. who is that gentleman B. that gentleman is who C. who that gentleman is D. whom .is that gentleman key: C 陈述语序 15. We'll give you _____. A. that do you need B. what do you need C. whatever you need D. whether do you need key: C whatever: 1. no matter what 表示让步,副词性 2. anything that ,名词性 如果一个副词性的疑问词加上ever后缀,它只具有副词性.如 whenever=no matter when; however 它是一个很特殊的词: 1.表示转折关系,副词,词义:然而 matter how 无论怎么 16. They want us to know _____ to help us. A. what can they B. what they can C. how they can D. how can they key: B what they can (do), what作do的宾语. 17. We must put _____ into practice. A. what we have learned B. that we have learned C. that have we learned D. what have we learned key: A 18. Did she say anything about _____? A. that the work was to be done B. how was the work to be done C. that was the work to be done D. how the work was to be done key: D 19. He was never satisfied with _____. A. what she had achieved B. had what she achieved C. she had achieved D. that she achieved key: A 20. These photographs will show you _____. A. what does our village look like B. what our village looks like C. how does our village look like D. how our village looks like key: B 21. Peter insisted _____ he pay the bill. A. on that B. what C. that D. on which key: C insist 后面加that从句要用虚拟的形式: should+v, should可省略 22. They urged _____ the library open during the vacation. A. when B. where C. why D. that key: D 同上 23. We wish we could have learned _____ when we were at high school. A. what you did B. that you had done C. that what you did D. what did you do key: A will describe to you _____ I saw when there. A. what B. that C. which D./ key: A 25. From _____ I should say he is a good worker. A. what 1 know of him B. that I do know of him C. what do I know of him D. that do I know of him key: A 26. I will give this dictionary to __ wants to have it. A. whomever B. anyone C. whoever D. someone key: C any one who wants to have it they will come here hasn't been decided yet. A. What B. That C . When D. Where key: C 28. _____ was said here must be kept secret. A. Who B. The thing C. Whatever D. Where key: C 29. It is still a question _____ we shall have our sports meet. A. if B. that C. what D. when key: D 30. I'm going anyway. _____ she will go is up to her to decide. A. If or not B. Whether or not C. If D. That key: B 31. It is strange _____ she have left without saying a word. A. that B. what C. why D. how key: A 32. It is very clear _____ our policy is a correct one. A. what B. that C. why D. where key: B 33. _____ Mr Zhang said is quite right. A. That B. When C. What D. Whether key: C 34. It has been decided _____ he will be sent there. A. if B. whether C. why D. that key: D 比较: It hasn't been decided whether he will be sent there. 35. It doesn't matter _____he' s come back or not. A. if B. whether C. that D. when key: B 36. It's a great pity _____ we won’t be able to finish the task on time. A. when B. that C. why D. where key: B 37. It happened _____ I wasn't there that day. A. when B. why C. where D. that key: D it happened that... 碰巧... you have done might do harm to other people. A. What B. That C. Which D. The things key: A 39. _____ leaves the room last ought to turn oft the lights. A. Anyone B. The person C. Whoever D. Who key: C anyone who 比较: who left the room last is being looked into. the 2000 Olympic Games won't be held in Beijing is known to all. A. Whether B. If C. Whenever D. That key: D 41. _____ fails to see this will make a big mistake. A. That B. Whoever C. Whether D. Whether or not key: B anyone who 42. __ we need more equipment is quite obvious. A. What B. Whether C. That D. Whatever key: C 43. Has it been announced _____? A. when are the planes to take off B. that are the planes to take off C. where are the planes to take off D. when the planes are to take off key: D 44. That is _____ we all support his idea. A. what B. why C. where D. when key: B 45. That’s _____ we should do. A. that B. what C. how D. why key: B 46. _____ is troubling me is _____ I don’t understand _____ he said A. What; that; what B. What; what; what C. That; that; what D. Why; that; which key: A 47. Things were not _____ they seemed to be. A. when B. why C. that D. what key: D 48. That’s _____ I want to say. A. all what B. what C. all which D. what that key: B 49. That’s _____ . A. where our differences lie B. our differences lie there C. where do our differences lie D. that where our differences lie key: A 50. That is _____ . A. where lived he there B. where did he live C. where he lived D. that where he lived key: C 51. The questions is _____. A. whether is it worth doing B. that if it is worth doing C. whether it is worth doing D. if it is worth doing key: C 52. Water will continue to be _____ it is today next in importance to oxygen. A. how B. which C. what D. as key: C 53. That's_____. A. how did I become a teacher B. how I became a teacher C. how a teacher I became D. that I became a teacher key: B 54. They are just _____. A. that what shall I have B. what shall I have C. that I shall have what D. what I shall have key: D 55. It looked ____. A. as if it was going to rain B. that as if it was going to rain C. as if was it going to rain D. as if that it was going to rain key: A 56. That's_____. A. how she did it B. that how did she do it. C. how did she do it D. what she did it key: A 注意选项D,多了一个词: it 57. That is _____ we decided to put the discussion off. A. where B. which C. that D. why key: D 58. That’s _____ I lived when I was ten years old. A. where B. at which C. there where D. when key: A 59. My suggestion is _____ we should send a few comrades to help them. A. if B. that C. when that D. that where key: B 60. The idea _____ all people are selfish is wrong. A. what B. that C. why D. if key: B 61. We heard the news _____ our team had won. A. that B. what C. whether D. why key: A 62. The fact _____ he hadn’t said anything surprised us all. A. why B. if C. that D. whether key: C have no idea _____ she will be back. A. that B. where C. that when D. when key: D 64. We must keep in mind the fact _____ China is still a developing country. A. whether B. that C. why D. when key: B 65. They have no idea at all _____. A. where he has gone B. where did he go C. where has he gone D. which place he has gone key: A

高中英语名词性从句视频讲解

高中英语语法名词性从句讲解

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

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 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

1. 主语从句在复合句作主语。

. Who will go is not important.

2. 用it作形式主语，主语从句放在句末。

. It doesnt matter so much whether you will come or not.

3. that引导主语从句时，不能省略。

语法复习三：名词性从句 在前面我们已经知道了什么是句子.我们可以这样解释什么叫从句:在一个句子的前面加上一个连接词,这个句子就变成了从句.如果这个从句做了主语,它就是主语从句.其它的以此类推. 注: 1.特殊疑问句本身可以做从句,它不需要加连接词. 2.所有的从句要使用陈述语序. 陈述语序: 句子第一个词永远是主语;第二个词可能是情态动词\助动词等加上动词,或者是动词本身. 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，名词性从句分为主语从句、表语从句、宾语从句和同位从句。 名词性从句,顾名思义,它具有名词性.所以可以作主语,宾语等等.回忆一下句子成分那一章 （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 （二）主语从句 1、主语从句在复合句作主语。 Who will go is not important. 2、用it作形式主语，主语从句放在句末。 It doesn’t matter so much whether you will come or not. 3、that引导主语从句时放在句首时，不能省略。 That he suddenly fell ill last week made us surprised. 实用例句: Is it true that he will be punished seriously by the headmaster? Does it make any difference who bought these gifts? How strange it is that these children are so quiet! 注意: 表示是否,只能使用whether. （三）表语从句 1、表语从句在复合句中作表语，位于系动词之后。 The question was who could go there. 2、引导表语从句的连接词that有时可省去。 My idea is (that) we can get more comrades to help in the work. 注意: 表示是否,只能使用whether. （四）宾语从句 1、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。 I hope (that) everything is all right. 2、介词之后的宾语从句，不可用which或if连接，要分别用what或 whether。 I’m interested in whether you’ve finished the work.. I’m interested in what you’ve said. 3、whether与if都可以引导宾语从句，常可互换。但下面情况不能互换。 if和whether区别 ①宾语从句是否定句时，只用if，不用whether。 . I wonder if it doesn’t rain. ②用if 会引起误解，就要用whether。 . Please let me know whether you want to go.（此句如果把whether改成if， 容易当成条件句理解） ③宾语从句中的whether 与or not直接连用，就不能换成if；不直接连用，可换。 . I don’t know whether or not the report is true. I don’t know whether/ if the report is true or not. ④介词后的宾语从句要用whether引导。whether 可与不定式连用。whether也可引导主语从句、表语从句、同位语从句，还可引导让步状语从句，以上均不能换成if。但引导条件从句时，只能用if，而不能用whether。 It depends on whether we have enough time. They don’t know whether to go there. Please come to see me if you have time. 状语从句 实用例句: 使用it作形式宾语 I thought it impossible that he could finish this job in just two hours. He left it to my judgment whether we should continue this project. 注意: 形式主语和形式宾语只有一个替代词: it （五）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, idea, suggestion, promise等）之后，说明该名词的具体内容。 I have no idea when he will be back. The fact that he had not said anything surprised everybody 一、判断下列各句哪句含有名词性从句，并指出是什么从句： 1. China is no longer what it used to be. 2. The truth that the earth turn around the sun is known to all. 3. It was snowing when he arrived at the station. 4. How he persuaded the manager to change the plan is interesting to us all. 5. The news that they had won the game soon spread over the whole school. 6. The news that you told me yesterday was really disappointing. 7. That is where Lu Xun used to live. 8. He spoke as if he understood what he was talking about. 9. Do you remember the teacher who taught us English at middle school? 10. I wonder why she refused my invitation. 参考答案: 1、表语从句；2、同位语从句；3、不是；4、主语从句；5、同位语从句；6、不是；7、表语从句；8、宾语从句；9、不是；10、宾语从句 二、用适当的连词填空： 1. I can’t decide ____________ dictionary I should buy. 2. That’s ____________ he refused my invitation. 3. I am very interested in ____________ he has improved his pronunciation in such a short time. 4. ____________ we need is more time. 5. The fact ____________ she had not said anything at the meeting surprised everybody. 6. ____________ and ____________ they will meet has not been decided yet. 7. Please tell me ____________ you are waiting for. 8. Is that ____________ you are looking for? 9. Would you please tell me ____________ the nearest post office is? 10. I don’t know ____________ he will agree to the plan or not. 参考答案: 1. which; 2. why; 3. how; 4. What; 5. that; 6. when, where; 7. who(m); 8. what; 9. where; 10. whether 三、选择填空： 1. Do you see _____ I mean? A. that B./ C. how D. what key: D 宾语从句 that引导宾语从句无词义,也不作成分.mean是及物动词,必须有宾语.所以不选A; how是副词,也不能作mean的宾语.what I mean, what I did, what I said,等是一个非常重要的名词结构. 2. Tell me_____ is on your mind. A. that B. what C. which D. why key: B what is on your mind 是what名词结构．句意：告诉我你的心事． 3. We must stick to _____ we have agreed on. A. what B. that C. / D. how key: A 4. Let me see _____. A. that can I repair the radio B. whether I can repair the radio C. I can repair the radio D. whether can I repair the radio key: B 从句使用陈述语序 注意选项C可以看成是省略了that的宾语从句,在语法上来讲它是正确的,但语义不通. 5. Keep in mind _____. A. that the teacher said B. what did the teacher say C. that did the teacher say D. what the teacher said key: D what名词结构作keep宾语. 6. Could you advise me _____? A. which book should I read first B. what book should I read first C. that book I should read first D. which book I should read first key: D 7. He was criticized for _____. A. he had done it B. what he had done C. what had he done D. that he had done it key: B 8. Would you kindly tell me _____? A. how can I get to the Beijing Railway Station B. how I can get to the Beijing Railway Station C. where can I get to the Beijing Railway Station D. whether can I get to the Beijing Railway Station key: B 9. Mrs. Smith was very much impressed by _____. A. what had she seen in China B. that she had seen in China C. what she had seen in China D. which had she seen in China key: C 10. We took it for granted ___ A. that they were not coming B. that were they not coming C. they were coming not D. were they not coining key: A 11. I really don't know _____ A. I should do next B. what should I do next C. what I should do next D. how I should do next key: C 12. I'm afraid _____. A. the little girl will have to be operated on B. that will the little girl have to operate on C. the little girl will have to operate on D. that will the little girl have to be operated on key: A 13. She walked up to _____ . A. where did I stand B. where I stood C. I stood there D. where I stood there key: B where I stood 我站的地方 14. Can you tell me _____? A. who is that gentleman B. that gentleman is who C. who that gentleman is D. whom .is that gentleman key: C 陈述语序 15. We'll give you _____. A. that do you need B. what do you need C. whatever you need D. whether do you need key: C whatever: 1. no matter what 表示让步,副词性 2. anything that ,名词性 如果一个副词性的疑问词加上ever后缀,它只具有副词性.如 whenever=no matter when; however 它是一个很特殊的词: 1.表示转折关系,副词,词义:然而 matter how 无论怎么 16. They want us to know _____ to help us. A. what can they B. what they can C. how they can D. how can they key: B what they can (do), what作do的宾语. 17. We must put _____ into practice. A. what we have learned B. that we have learned C. that have we learned D. what have we learned key: A 18. Did she say anything about _____? A. that the work was to be done B. how was the work to be done C. that was the work to be done D. how the work was to be done key: D 19. He was never satisfied with _____. A. what she had achieved B. had what she achieved C. she had achieved D. that she achieved key: A 20. These photographs will show you _____. A. what does our village look like B. what our village looks like C. how does our village look like D. how our village looks like key: B 21. Peter insisted _____ he pay the bill. A. on that B. what C. that D. on which key: C insist 后面加that从句要用虚拟的形式: should+v, should可省略 22. They urged _____ the library open during the vacation. A. when B. where C. why D. that key: D 同上 23. We wish we could have learned _____ when we were at high school. A. what you did B. that you had done C. that what you did D. what did you do key: A will describe to you _____ I saw when there. A. what B. that C. which D./ key: A 25. From _____ I should say he is a good worker. A. what 1 know of him B. that I do know of him C. what do I know of him D. that do I know of him key: A 26. I will give this dictionary to __ wants to have it. A. whomever B. anyone C. whoever D. someone key: C any one who wants to have it they will come here hasn't been decided yet. A. What B. That C . When D. Where key: C 28. _____ was said here must be kept secret. A. Who B. The thing C. Whatever D. Where key: C 29. It is still a question _____ we shall have our sports meet. A. if B. that C. what D. when key: D 30. I'm going anyway. _____ she will go is up to her to decide. A. If or not B. Whether or not C. If D. That key: B 31. It is strange _____ she have left without saying a word. A. that B. what C. why D. how key: A 32. It is very clear _____ our policy is a correct one. A. what B. that C. why D. where key: B 33. _____ Mr Zhang said is quite right. A. That B. When C. What D. Whether key: C 34. It has been decided _____ he will be sent there. A. if B. whether C. why D. that key: D 比较: It hasn't been decided whether he will be sent there. 35. It doesn't matter _____he' s come back or not. A. if B. whether C. that D. when key: B 36. It's a great pity _____ we won’t be able to finish the task on time. A. when B. that C. why D. where key: B 37. It happened _____ I wasn't there that day. A. when B. why C. where D. that key: D it happened that... 碰巧... you have done might do harm to other people. A. What B. That C. Which D. The things key: A 39. _____ leaves the room last ought to turn oft the lights. A. Anyone B. The person C. Whoever D. Who key: C anyone who 比较: who left the room last is being looked into. the 2000 Olympic Games won't be held in Beijing is known to all. A. Whether B. If C. Whenever D. That key: D 41. _____ fails to see this will make a big mistake. A. That B. Whoever C. Whether D. Whether or not key: B anyone who 42. __ we need more equipment is quite obvious. A. What B. Whether C. That D. Whatever key: C 43. Has it been announced _____? A. when are the planes to take off B. that are the planes to take off C. where are the planes to take off D. when the planes are to take off key: D 44. That is _____ we all support his idea. A. what B. why C. where D. when key: B 45. That’s _____ we should do. A. that B. what C. how D. why key: B 46. _____ is troubling me is _____ I don’t understand _____ he said A. What; that; what B. What; what; what C. That; that; what D. Why; that; which key: A 47. Things were not _____ they seemed to be. A. when B. why C. that D. what key: D 48. That’s _____ I want to say. A. all what B. what C. all which D. what that key: B 49. That’s _____ . A. where our differences lie B. our differences lie there C. where do our differences lie D. that where our differences lie key: A 50. That is _____ . A. where lived he there B. where did he live C. where he lived D. that where he lived key: C 51. The questions is _____. A. whether is it worth doing B. that if it is worth doing C. whether it is worth doing D. if it is worth doing key: C 52. Water will continue to be _____ it is today next in importance to oxygen. A. how B. which C. what D. as key: C 53. That's_____. A. how did I become a teacher B. how I became a teacher C. how a teacher I became D. that I became a teacher key: B 54. They are just _____. A. that what shall I have B. what shall I have C. that I shall have what D. what I shall have key: D 55. It looked ____. A. as if it was going to rain B. that as if it was going to rain C. as if was it going to rain D. as if that it was going to rain key: A 56. That's_____. A. how she did it B. that how did she do it. C. how did she do it D. what she did it key: A 注意选项D,多了一个词: it 57. That is _____ we decided to put the discussion off. A. where B. which C. that D. why key: D 58. That’s _____ I lived when I was ten years old. A. where B. at which C. there where D. when key: A 59. My suggestion is _____ we should send a few comrades to help them. A. if B. that C. when that D. that where key: B 60. The idea _____ all people are selfish is wrong. A. what B. that C. why D. if key: B 61. We heard the news _____ our team had won. A. that B. what C. whether D. why key: A 62. The fact _____ he hadn’t said anything surprised us all. A. why B. if C. that D. whether key: C have no idea _____ she will be back. A. that B. where C. that when D. when key: D 64. We must keep in mind the fact _____ China is still a developing country. A. whether B. that C. why D. when key: B 65. They have no idea at all _____. A. where he has gone B. where did he go C. where has he gone D. which place he has gone key: A

1、名词性从句，即指性质相当于名词的从句，它包括主语从句、宾语从句、表语从句和同位语从句。从高考的考查的实际情况来看，名词性从句考得最多的是宾语从句，其次是主语从句，再次是表语从句，而同位语从句则很少考查。2、连接词that引导名词性从句时，只起连接作用，没有任何意思，也不充当句子成分，在宾语从句中可省略，但引导其他名词性从句时通常不省略。如：Ihope(that)youenjoyyourholiday.希望你假期过得好。Thathelikesyouisveryobvious.很显然他喜欢你。3、连接词whether引导名词性从句也不充当句子成分，但有自己的意思，表示“是否”；引导宾语从句时，可换成if，但引导其他名词性从句时不能换成if。如：Heaskedwhether[if]Iwouldshowhimtheway.他问我是否可以给他带路。Whetheritwilldousharmremainstobeseen.是否对我们有害还要看一看。(引导主语从句，不能用if代替whether)4、连接代词who(m),whose,which,what等引导名词性从句时，均有各自的意义，在从句中作主语、宾语、定语等。如：That’swhyshewantedtoleave.这就是她想离开的原因。Whenwearrivedoesntmatter.什么时候到没有关系。Tellmewhichoneyoulikebest.告诉我你最喜欢哪一个。5、连接副词when,where,why,how等引导名词性从句，也各自有自己的意义，在从句中作状语。如：Thequestionishowweshouldcarryouttheplan.问题是怎样执行这个计划。Whenshe’llbebackdependsmuchontheweather.她什么时候回来在很大程度上要看天气。Whyhediditwillremainapuzzleforever.他为什么这样做将永远是一个谜。