英语语法：主语从句的定义和引导词

英语语法：主语从句的定义和引导词

主语从句的定义：

主语从句是指在复合句中充当主语的句子，它是名词的拓展，属于主

语的第三个表达层次。所以，主语从句和名词一样通常是出现在谓语

动词的前面。

例句1：Whether he will pass the examination is still unknown.

他是否能够通过考试仍然不知道。

例句2：What he said inspired me a lot.

他说的话让我受到了很大的鼓舞。

主语从句的引导词：

主语从句的引导词与宾语从句，表语从句和同位语从句的引导词几乎

相同（表语从句有几个特殊引导词除外）请参照本站文章表语从句的

用法讲解。以下就按照引导词在主语从句中的意义和功能分别讲解。

that引导主语从句

例句1：That youth is wholly experimental is known to us all。

众所周知，青春就是探索的岁月。

例句2：That she finished reading an English novel surprised us all.

她读完了一部全英文小说让我们大吃一惊。

Whether引导主语从句

例句1：Whether she will come to the party makes no difference.

她来不来参加聚会都没相关系。

例句2：It makes no difference whether/if she will come to the party.

她来不来参加聚会都没相关系。

Who, what, which引导主语从句

例句1：Who will be the leader of the team has not been decided yet.

谁会成为这个队的领头人还没定下来。

例句2：What the kids need is a peaceful growing environment.

孩子们需要的是一个和平的生长环境。

例句3：Which you choose has nothing to do with me.

你选择哪一个跟我没有任何关系。

whose, what, which引导主语从句

例句1：Whose face will flush is the liar.

谁的脸红了谁就是骗子。

例句2：What goal you set now determines what your will gain in the future.

你现在设立什么目标决定了你将来会有什么收获。

例句3：Which bus we should take is the first problem we have to solve now.

我们应该乘坐那辆车是我们现在首先要解决的问题。

when, where, how, why引导主语从句

例句1：Why Tony did this remained a mystery. 为什么托尼做这件事仍然是个谜。

例句2：When we will have our winter holidays is still uncertain.

我们什么时候放寒假还不确定。

例句3：How the accident happened is not clear to anyone.

这场事故是怎么发生的，谁都不清楚。

例句4：Where we shall have our party is not your business.

我们应该在哪开派对跟你没相关系。

Wh-ever连接词引导主语从句

例句1：Whoever has a strong will is likely to become successful.

凡是有坚强意志的人都有可能成功。

例句2：Whatever is worth doing at all is wroth doing well.

凡是值得做的事情就值得做好。

例句3：whosever book is overdue will be fined.

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} 定语从句：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。定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。 定语从句功能及位置 功能：定语从句相当于形容词，修饰名词或代词，在句中作定语。 位置：定语从句置于被修饰词之后。 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。)

英语语法之时间状语从句

时间状语从句常由以下连接词引导：when（当……时），as（一边……一边；当…时），while（在……期间），after（在……之后），before（在……之前），as soon as（一……就），since（自从），till(until)（直到……，直到……才），whenever（任何时候），the moment（一……就），no sooner than（一……就），hardly…when… （一……就）等。由以上连接词（或词组）连接的主从复合句中，主句和从句的动作，有的是同时发生，有的是先后发生。因此，要特别注意根据连接词所代表的时间不同，主句和从句的谓语要使用相应的时态。这是掌握时间状语从句的关键。 1. when 和whenever 引导的从句：从句的动作和主句的动作可以同时发生，也可以先于主句的动作发生。例如： When we reached home, it was already dark. 我们到家的时候天已经黑了。 When my cousin came yesterday, I was playing volleyball. 昨天我表哥来时，我正在打排球。 When it rains, I go to school by bus.下雨的时候，我坐车去学校。 I shall tell her the good news when she comes. 她来时，我将告诉她这个好消息。（主从句都表示将来发生的动作，但要注意从句中要用一般现在时，表示将来。） Come to see us whenever you can.你什么时候有空，就过来看看我们。 2. while 和as 引导的从句：while表示“当…过程中”，强调某一段时间主句和从句的动作在同时发生。as表示“当…时”或 “一边…一边”，主句和从句的动作同时发生。例如： Work while you work; play while you play. 该工作的时候就工作，该玩的时候就玩。 While he is reading, he always makes notes. 他经常一面看书，一面做笔记。 She sings as she goes along.她边走边唱。 You will grow wiser as you grow older. 随着年龄的增长，你会更加聪明起来。 3. before 和after 引导的从句：前者一般表示主句的动作发生在从句动作之前。后者表示主句的动作发生在从句动作之后。 例如： I didn’t know any English before I came here. 我来这儿之前，一点英语都不懂。 I had written my report before my mother came back.

英语语法整理之从句

语法内容----从句 一．从句的分类 主语从句（谓语之前）This is what he told me last night. 表语从句（系动词之后）What he said is true. 宾语从句（实意动词之后）Tell me what he said at the meeting. 同位语从句名词之后，与名词是等同关系）The news that he will come makes me happy.（解释the news) 定语从句（修饰名词或代词）The news that he tole me is true 状语从句（修饰动词） 1.)时间.....I stayed home while ha was away.(说明呆家的时间） 2.)地点....You should put the book where it was.(说明放的位置） 3. 原因....He didn’t come because he was ill.(说明没来的原因） 4.)结果...He ran so fast that I couldn’t catch cup him(他跑得快 导致的结果） 5.) 目的...We left early so that we could catch the first train.(说明 我们早出发的目的） 6.) 条件...I will not lend the book to you unless you return it in

time.(说明我借书给你的前提条件） 7.）让步...(Although he may have told you, I still think she is not to be trusted.(说明就算退一步讲，我也不信任她） 8.）方式...You should do as I tell you.(说明你要做的方式） 9.）比较...The room is bigger than that one.(形容/副词的比较用法） 二、从句的连接词(根据从句类型来用） 1.名词性从句- 主语从句陈述句（that) 宾语从句-----根据从句类型一般疑问句(weather/if) 表语从句特殊疑问句(what/how/when/ 同位语...- where/why/who.)以宾从为例陈述句：He said that he could help me.(I can help you) 一般问句He asked weather/if I could help him.( Can you help me?)特殊问句：He asked what I was doing.( What are you doing? He asked how I did it?.( How did you do it?)

英语六大从句用法总结

英语中六大从句用法总结 从句是指用于复合句中担当某个句子成分的主谓结构。虽说从句自身的句子结构是完整的，但是它不能视为独立的句子，因为它离开了主语就无法独立、完整地表达意思。按其所能表达的意义而言,它相当于一个词或是一个词组. 按从句的句子功能划分（也就是按从句在句子中所担任的成分来划分），从句可分为：主语从句、宾语从句、表语从句、同位语从句、定语从句和状语从句。 1.主语从句 1）主语从句可直接位于主语的位置，如果从句较长，谓语又较短，可用it作形式主语，而将从句放在句末。常见的句型有： *It is a fact\a pity\a question\good news that... *It seems\appears\happened\has turned out that... *It is clear\important\likely\possible that... *It is said\reported\estimated\has been proved that... It is said that comic books create a connection between people of the same generation. It seems that the performance is very useful. 2)what引导的主语从句表示“...的东西时”，一般不用it作形式主语。 What we lack is experience. 3)what,who,when,why,whether等词含有各自的疑问意义，但它们引导的主语从句，都用陈述语序。 How the plan is to be carried out should be discussed again. I did know why I felt like crying. 2.宾语从句 1）宾语从句可位于及物动词、介词和某些形容词后。连词that常可省略。介词后一般接疑问词引导的宾语从句。in that(因为),except that(除了),but that(只是）已构成固定搭配，其他介词后一般不接that引导的宾语从句。 *I promised that I would change the situation. *All this is different from what American young people would say about friendship. *He is certain that watching so much television is not good for children. *This article is well-written except that it is a bit too long. 2)宾语从句后如有宾补，要用形式宾语it来代替，而把宾语从句移至宾补之后。 He has made it clear that he would not change his mind. 3)在think,believe,suppose,expect等动词后的宾语从句中，如果谓语是否定的，一般将否定词移至主句谓语上，宾语从句则变成肯定形式。 He didn't think that the money was well spent. 3.表语从句 表语从句出现在结构为“主语+系动词+表语从句”的句子中。表语从句除可用that,what,when,why,whether,how等引导外，还可由because,as if(though)等引导。that常可省略。如主句主语为reason,只能用that引导表语从句，不可用because.

(完整)初中英语语法状语从句讲解及练习附答案

初中英语语法专题讲座——状语从句 状语从句在复合句中作状语，修饰动词、形容词或副词等。状语从句可以表示时间、条件、原因、地点、目的、结果、让步、方式、比较等意义。 知识梳理：提纲挈领，抓住重点和难点！ 各类状语从句连接词（短语）一览表： 时间 when, while, as, as soon as, since, until, after, before，as long as（长达……之久） 条件 If, unless,as/so long as(只要) 原因 As, because, since，as/so long as(既然,因为) 地点 Where 目的 So that(为了), in order that 结果 So that（方便）, so…that,such…that 让步 though, although, even if, however 方式 As 比较than, (not)as…as, 时间状语从句： Whenever he comes, he brings a friend. 他每次来都带个朋友。 They all continued their regard for me as long as they lived. 他们毕生都在关心着我. 条件状语从句： As long as I am alive, I will go on studying. 只要我活着，我就要学习。 原因状语从句： Since we live near the sea, we enjoy nice weather.由于我们住在海边，能享受到好的天气。 地点状语从句： Put it where we can all see it.把它放在我们都能看到的位置。 目的状语从句： Finish this so that you can start another.把这个做完，（为了）你可以开始另一个。 结果状语从句： He was so angry that he couldn't say a word. 他气得说不出话了。 让步状语从句： Though he is in poor health, he works hard.虽然他身体不好，但是他工作很努力。

英语语法之定语从句(最新整理)

定语从句 1.1 定语从句的两个重要概念：先行词和关系词： 先行词：被定语从句所修饰的对象称为先行词。 关系词：重复指代先行词，起连接主句和从句的作用，并且在定语从句中充当一定成分的连接词称为关系词。关系词有两个作用： 1.代词的作用：重复指代先行词并且在定语从句中充当一定成分，比如I don’t like people who never keep their word.中的who指代people并且作从句的主语。 2.连接作用：即连接主句和从句，如上句who起着连接主句I don’t like people和从句who never keep their word 的作用 1.2 关系词在定语从句充当的成分 在上一节中，在谈到关系词的“代词作用”时，提到它“重复指代先行词并且在定语从句中充当一定的成分”。因此接下来的分析思路是，以关系词为出发点，从两个角度来谈定语从句：一是关系词在从句中所能充当的各种不同成分；二是关系词与先行词的对应关系，即不同的先行词要由不同的关系词来指代。 1.2.1 关系词用作从句的主语 1. I like guys and they have a good sense of humor. ↓ 2. I like guys w h o have a good sense of humor. 点睛：这里的关系词who取代and they，来引导定语从句who have a good sense of humor,修饰名词guys。这个guys就是先行词。 翻译：我喜欢有幽默感的男生。 3. Anger is a thief who steals away the nice moments. 翻译：愤怒就如同一个窃贼，盗取了我们的幸福时光。 4. He who is not handsome at twenty, nor strong at thirty, nor rich at forty, nor wise at fifty, will never be handsome, rich or wise. 翻译：一个人若在20岁时不俊美，30岁不健康，40岁不富有，50岁时不明智，那么他将永远不会拥有这些。 5. There is this difference between happiness and wisdom: the person who thinks himself the happiest man really is so ; but the person who thinks himself the wisest is generally the greatest fool. 翻译：幸福与智慧区别于此：认为自己是最幸福的，他真的就是最幸福的；而认为自己是最有智慧的，他却往往是最大的傻瓜。 6. Of course I am not talking about easy-come-easy-go friendship. I’m talking about friends who care deeply about each other, who support each other, who make life worth living. 翻译：当然了，我这里所说的的友谊不是那种“来的快去的也快”的泛泛之交，而是那种彼此之间能真正互相关心的朋友，就能够互相支持的朋友，能够让你的人生更有意义的朋友。 1.2.2 关系词用作从句动词的宾语（relative pronoun as object of verb） 关系词除了像上面讨论的在定语从句中作主语外，还可以在从句中作宾语。

2016考研英语：主语从句

在句子中起名词作用的句子叫名词性从句。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语法功能，名词性从句又可分为主语从句、宾语从句、表语从句和同位语从句。今天我们就来重点讲一下其中的主语从句。 在复合句中充当主语成分的句子叫作主语从句。它的具体表现形式是：引导词引导一个从句作主语；或者it作形式主语+谓语/系表结构+引导词+从句。 【例1】that That Chris Lee won the champion of Super Girl in 2005 arouse wide public concern.李宇春赢得2005年超女冠军这件事引起了社会的广泛关注。 【例2】what What caused the accident remains unknown.是什么引起了这一事故仍然未知。 【例3】where Where my wife and I should choose to continue my further education is a question of great importance.我太太和我应该去哪享受我们的蜜月还没有最后决定。 【例4】which Which university I should choose to continue my further education is a question of great importance.我应该考哪个大学的研究生是个很重要的问题。 【例5】when When and where the test will be given is not yet decided.什么时候在什么地方进行考试还没定下来。 【例6】-ever Whoever gets the job will have a lot of work to do.任何得到这份工作的人都将要有很多工作要做。 【例7】how How we can protect the grain from damp needs to be discussed.我们怎样才能保护粮食不受潮需要讨论。 【例8】whether Whether this is true or not remains a mystery.这是对是错还是个谜。 It句型 有的时候主语从句过长，根据人类短暂记忆规律，主语过长会影响理解和阅读，往往会用it作形式主语，而把真正的主语放在句尾，加以强调，是为it句型。 【例】 It is a pity that we won’t be able to go to the south to spend our summer vacation.我们不能去南方度过我们的暑假很遗憾。 为表示强调，常以形式主语it引导从句。It+谓语+引导词+从句。由于主语从句一般被认为是单数形式，形式主语代表真正的主语，因此要用it。因此形式主语的谓语动词、be动词+表语均为第三人称单数形式或过去式。 英国桂冠诗人约翰·梅斯菲尔德说：“快乐的日子使人睿智。”很多考生可能觉得这句话应该反过来说，但其实复习过一段时间以后，面对着越来越复杂的难题，你就会发现，保持快乐的心态，复习效率自然而然就会提高。