主从复合句--表语从句
表语从句：在句子中作连系动词的表语的从句,它位于主句中的系动词之后。
例如：That is why he did not come to school yesterday. / It is because you are so clever.
一、表语从句的定义：表语从句放在连系动词之后，充当复合句中的表语。
二、表语从句的构成：关联词+简单句
三、引导表语从句的关联词的种类：
1. 可接表语从句的连系动词有be, look, seem, sound, appear等。
China is no longer what she used to be. 今日的中国不再是过去的中国了。
The question remains whether they will be able to help us.
问题还是他们能否帮我们。
At that time, it seemed as if I couldn't think of the right word.
当时，我似乎怎么也想不出一个恰当的字眼来。
2. 从属连词whether, as, as if / though引导的表语从句
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. 听起来好像有人在敲门。
3. because, why引导的表语从句
That's because he didn't understand me. 那是因为他没有理解我。 (That's because...强调原因)
That's why he got angry with me. 那正是他对我生气的原因。(That's why...强调结果)
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。
The reason why I was sad was that he didn't understand me.
我难过的原因是他没有理解我。
4. 连接代词who, whom, whose, what, which, whoever, whatever, whichever
连接副词 where, when, how, why。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。
The question is how he did it. 问题是他是如何做此事的。
That was what she did this morning on reaching the attic. 那
就是她今晨上了阁楼干的。
5. 从属连词that。如：
The trouble is that I have lost his address. 麻烦是我把他的地址丢了。
6. 使用虚拟语气的表语从句
在表示建议、劝告、命令含义的名词后的表语从句，谓语动词需用"should+动词原形" 表示，should可省略。常见的词有：advice, suggestion, order, proposal, plan, idea等。
My suggestion is that we (should) start early tomorrow. 我的建议是我们明天一早就出
发。
四、应注意的问题：
1. 连系动词be，appear，seem，look等之后可以跟表语从句。
It was because he didn't pass the exam. 那是因为他没有通过考试。
It seems（that）he was late for the train. 看来他没搭上火车。
It appears that she was wrong. 看来她错了。
It seems to me that we should answer for this. 在我看来，我们似乎应该对此事负责。It appears to her that he wants to teach us all he has.
在她看来，他似乎要把他所会的都教给我们。
2. 引导表语从句的引导词有以下几类。
1）wh-疑问词
My question is who left. 我想问的是谁离开了。
What I wonder is when he left. 我想知道他是何时离开的。
That's what he wants. 那是他想要的。
This is where they once lived. 这就是他们曾经住过的地方。
That is why he didn't come here. 这就是他为何没到这儿来的原因。
2）whether
My question is whether he left（or not）. 我的问题是他是否离开了。
注：if不能引导表语从句。
3）that
The fact is that he left. 事实是他离开了。
注：引导表语从句的连词that间或可以省略。
The truth is（that）I didn't go there. 事实是我没去那儿。
4）because，as，as if，as though
It's just because he doesn't know her. 这是仅仅因为他不认识她。
Things are not always as they seem to be. 事物并不总是如其表象。
He looks as if he's tired. 他好像累了。
例题讲解：
［例1］The traditional view is ____ we sleep because our brain is “
programmed” to make us do so. (2007上海)
A. when
B. why
C. whether
D. that
［例2］You are saying that everyone should be equal, and this is ____ I disagree. (2004)
A. why
B. where
C. what
D. how
［例3］— I drove to Zhuhai for the air show last week.
— Is that ____ you had a few days off? (1999)
A. why
B. when
C. what
D. because
［例4］____ she couldn’t understand was ____ fewer and fewer
students showed interest in her lessons. (2000上海)
A. What; why
B. That; what
C. What; because
D. Why; that
［例5］____ made the school proud was ____ more than 90% of the students had been admitted to key universities. (2003上海春)
A. What; because
B. What; that
C. That; what
D. That; because
表语从句用法详解(例句丰富) 一、表语从句的引导词 引导表语从句的词有连词that, whether，连接代词和连接副词，关系代词型what，以及as if, as though, because等连词。 1. 由that引导 The fact is that he doesn’t really try. 事实是他没有做真正的努力。 The trouble is that I have lost his address. 麻烦的是我把他的地址丢了。 My suggestion is that we should tell him. 我的建议是我们应该告诉他。 His sole requirement was (is) that the system work. 他唯一的要求是这个制度能起作用。 My idea is that we should start making preparations right now. 我的意见是我们马上就开始做准备工作。 2. 由whether引导 The question is whether the film is worth seeing. 问题是这部电影是否值得看。 【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。 3. 由连接代词引导 You are not who I thought you were. 你已不是我过去所想像的人。 The problem is who we can get to replace her. 问题是我们能找到谁去替换她呢。 The question is who (m) we should trust. 问题是我们应当相信谁。 What I want to know is which road we should take. 我想知道的是我们应走哪条路。 4. 由连接副词引导 The problem is how we can find him. 问题是我们如何找到他。 That was when I was fifteen. 这是我15岁时发生的事。 That’s where I first met her. 那就是我第一次遇见她的地方。 That’s why he didn’t come. 这就是他没有来的缘故。 That’s why I object to the plan. 这就是我反对这个计划的原因。 That’s where you are wrong. 这就是你不对的地方。
主从复合句 一基础理论： 1. 英语表达的五个层次 字母—单词—句子—段落—文章 2. 词的分类： 名词系统：名词；代词；冠词；形容词；数词 动词系统：动词；介词；副词 连词系统 3. 不同词性的词按照一定的顺序形成句子，同一个词由于在句子中位置不同所起的作用也不同；词在句子中所起的作用有：主；谓；宾；定；状；补；表 4. 句子是表达独立、完整意思的单位。 五种简单句结构。 ①主系表 ②主不及物动词 ③主谓宾 ④主谓双宾 ⑤主谓宾宾补 5. 并列句：通过and , but, or 并列连词连结的两个或多个简单句。 Give me somewhere to stand, and I will move the earth. Have an aim in your life, or your energies will be wasted. 6. 主从复合句：通过从属连词连结的，有主句和从句的合成结构。 二主从复合句的四项基本原则： 1. 主句符合五种简单句结构。 The day we had looked forward to ____at last. A coming B came C come D comes In the evening school where I study computer ____. A is there B has many people C is well taught D is nice 2. 从句也符合五种简单句结构。 ①From the first time I flew a flat paper kite as a child, I was always wondering____. A how made it fly B how it made fly C what it made fly D what made it fly ②The factory___ produces steel is the biggest one of the kind in our city. A which B whom C whose D where ③The factory___ Tom works is the biggest one of the kind in our city. A which B whom C whose D where 3. 如何识别主句和从句？只识别从句，另一句就是主句。 如何识别从句？通过从属连词加以识别。 ①从属连词属于从句，且位于从句的句首； The chief foods eaten in any country depend largely on ___best in its climate and soil. A it grows B what grows C does it grow D what does it grow It was an agreement___ could not be changed’ A of which details B whose the details C the details of which D all whose details ②从属连词在从句中既可以不承担具体功能，仅起识别的标志作用，但它同时破坏了原来
15级计算机班英语 表语从句讲解 概念：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” 可以接表语从句的连系动词有be, look, remai n, seem 等。 ★The trouble is that we are short of mon ey. 困难是我们资金短缺。 ★ That is why stone walls are used in stead of fen ces around NewE ngla nd fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因。 ★At that time, it seemedas if I could n't think of the right word an yhow. 当时,我似乎怎么也想不出一个恰当的字眼来。 引导表语从句的词： 从属连词that、whether、as though、as if （That引导表语从句时，在口语中，间或可以省略。） 关系代词who, what, which, whom,whose, whatever, whoever, whomever, whichever 等； 关系畐【J词when, where, why, how, however, whenever, wherever 等。 探由从属连词that , whether引导的表语从句。 that 在引导表语从句时无词义，而whether有词义，意为、“是否”。这 时主句的主语常常是些抽象名词，如question（问题），trouble（麻烦），problem（问题），result（结果），chance（可能性），suggestion（建议），idea（想法），reason（理由）等。表语从句对主句主语进行说明、解释，使主语的内容具体化。 例如： ★The trouble is （that） she has lost his mon ey. 麻烦的事是他丢了钱。 ★The questi on is whether we n eed more ice cream. 问题是我们是否还需要 一些冰淇淋。 ★The problem was that it was too valuable for everyday use. 问题是它作为日常之用太贵重了。 ★What she couldn ' t understand was that fewer and fewer students showed in terest in her lesso ns. 我们不能理解越来越少的学生对他的课不感兴趣。 探由关系代词引导的表语从句。 关系代词who, what, which, whom,whose, whatever, whoever, whomever, whichever等引导表语从句，在句中作主语、宾语、表语，关系代词不能省略。例如： ★The questi on is which of us should go. 问题是我们哪一个应该去。 ★The problem was who could do the work. 问题是谁能做这项工作。 ★That's what he is worryi ng about. 那就是他在担心的事。 ★That's what we should do. 那是我们应该做的。 ※由关系副词引导的表语从句。 关系副词when, where, how, why 除在句子起连接作用外，在从句中还充 当时间，地点，方式或原因状语，本身具有词义。
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： (3)looked just as he had looked ten years before.他看起来还与十年前一样。 (4)question is whether they will be able to help us. 问题是他们是否能帮我们。 (5)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： (6)All this was over twenty years ago, but it’s as if it was only yesterday. (7)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.注：能跟表语从句的谓语动词一般为系动词be, seem, look，sound等。如： (8)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。 (9)That was what she did this morning on reaching the attic. 那就是她今晨上了阁楼干的。 The problem is who we can get to replace her. (10)我想问的是谁离开了。My question is who left. 连接副词where, when, how, why。 What I wonder is when he left. 我想知道他是何时离开的。 This is where they once lived. 这就是他们曾经住过的地方。 That is why he didn't come here. The question is how he did it. (11)连词because可引导表语从句。如： (12)I think it is because you are doing too much. 我想这是因为你做得太多。 It's just because he doesn't know her. (13)T hat's because he didn't understand me. 那是因为他没有理解我.(That's because...强调原因) (14)T hat's why he got angry with me.那正是他对我生气的原因。(That's why...强调结果) (15)在一些表示“建议、劝说、命令”的名词后面的表语从句中，谓语动词用虚拟语气。should+动词原形表示，should可省略。如： (16)M y suggestion is that we (should) start early tomorrow. 我的建议是我们明天一早就出发。
主从复合句 一宾语从句 用作宾语的从句叫做宾语从句。宾语从句在句中起宾语作用，它可以用作动词的宾语，也可以做动词的宾语，也可以做介词、不定式、分词、动名词以及某些形容词（如：sure, glad, pleased, certain, afraid, surprised, satisfied 等）的宾语，宾语从句可以由连词that, whether, if;代词who, whose, what, which和副词when, where, how, why等引导。 他想他过几天就会好了。 I think (that) he’ll be all right in a few days. 你知道他们在等谁吗 Do you know who (whom) they are waiting for 他问那是谁的字典。 He asked whose dictionary it was. 注意老师说的话。 Pay attention to what the teacher said. 1.宾语从句在句中的位置 （1）作宾语的从句。如： I heard that he joined the army. 我听说他参军了。 She did not know what had happened. 她不知道发生了什么事。 （2）作介词的宾语。如： Our success depends upon/on how well we can cooperate with one another.我们的成功在于我们彼此能够很好的合作。 She is worried about whether her mother can come on time. 她在担心妈妈是否能按时来。 （3）作形容词的宾语。 I’m afraid (that) I’ve made a mistake.我恐怕我犯错误了。 类似的形容词还有：anxious, aware, certain, confident, glad, proud, surprised, worried, sorry, thankful, ashamed, disappointed, pleased, hurt, satisfied等。 （4）it作形式宾语，而真正的宾语that从句则放在句尾，特别是在带复合宾语的句子中，如： 他很明确地说他宁愿学习英语。 He made it quite clear that he preferred to study English. 注意：有些动词后不能跟that从句作宾语，这类动词有allow, refuse, let, like, cause, force, admire, celebrate, dislike, love, help, take, forgive 等。 2.宾语从句的引导词 （1）当宾语从句是由陈述句转化而来时，由that 引导，这时that在宾语从句中无意义，不充当任何成分，常省略。如： I know (that) you have met him. 我知道你曾经见过他。 He told me that he was wrong.他告诉我他错了。 I don’t believe he has finished his work.我相信他还没有完成他的工作。
表语从句讲解及专项练习 概念：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” 可以接表语从句的连系动词有be, look, remain, seem等。 ★The trouble is that we are short of money.困难是我们资金短缺。 ★That is why stone walls are used instead of fences around New England fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因。 ★At that time, it seemed as if I couldn't think of the right word anyhow.当时,我似乎怎么也想不出一个恰当的字眼来。 引导表语从句的词： 从属连词that、whether、as though、as if（That引导表语从句时，在口语中，间或可以省略。） 关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever等； 关系副词when, where, why, how, however, whenever, wherever等。 ※由从属连词that，whether引导的表语从句。 that在引导表语从句时无词义，而whether有词义，意为、“是否”。这时主句的主语常常是些抽象名词，如question(问题)，trouble(麻烦)，problem(问题)，result(结果)，chance(可能性)，suggestion(建议)，idea(想法)，reason(理由)等。表语从句对主句主语进行说明、解释，使主语的内容具体化。 例如： ★The trouble is (that) she has lost his money. 麻烦的事是他丢了钱。 ★The question is whether we need more ice cream.问题是我们是否还需要一些冰淇淋。 ★The problem was that it was too valuable for everyday use.问题是它作为日常之用太贵重了。 ★What she couldn’t understand was that fewer and fewer students showed interest in her lessons. 我们不能理解越来越少的学生对他的课不感兴趣。 ※由关系代词引导的表语从句。 关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever等引导表语从句，在句中作主语、宾语、表语，关系代词不能省略。 例如： ★The question is which of us should go.问题是我们哪一个应该去。 ★The problem was who could do the work.问题是谁能做这项工作。 ★That's what he is worrying about.那就是他在担心的事。 ★That's what we should do.那是我们应该做的。 ※由关系副词引导的表语从句。 关系副词when, where, how, why 除在句子起连接作用外，在从句中还充当时间，地点，方式或原因状语，本身具有词义。 例如：
1.定义 2. 引导表语的从句的关联词的种类 （1）从属连词that. The trouble is that I have lost his address. 原因是他上学迟到了。________________________________ (2)从属连词whether, as, as if He looked just as he had looked ten years before. The question is whether they will be able to help us. 注：从属连词if一般可不可以用来引导表语从句_____，as if呢____ All this was over twenty years ago, but it’s as if it was only yesterday. 关键是我们能否解决问题。________________________________ 看起来要下雨。__________________________________________ 注：能跟表语从句的谓语动词一般为系动词____ ____ _____ _____等 听起来好像有人在敲门。_____________________________________ (3) 连接代词____ _____ _____ ＿＿＿＿＿＿＿＿＿＿＿在表语从句中做主语、宾语等。 The problem is who we can get to replace her. That was what she did this morning on reaching the agreement.我的问题是谁离开了。＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ (4) 连接副词＿＿＿＿＿＿＿＿＿＿＿＿ What I wonder is when he left. This is where they once lived.
并列复合句与主从复合句 一、并列复合句“二步”学习法 并列复合句（简称并列句）与主从复合句（简称复合句）的区别是：并列句用并列连词连接两个或两个以上的句子，并表示句子与句子之间的并列关系。复合句是一个完整的句子，用连接词连接的从句充当句子的某一个成分，是主从关系。 试比较： Come here early , and you will see our manager . （两个句子之间是并列关系，没有从属关系，所以是并列复合句） If you come here early , you will see our manager . （句中If引导的条件状语从句和后面的主句有主从关系，从句从属于主句，所以是主从复合句） 二、掌握并列复合句的连词 并列句的连词由单个连词和连词词组两部分组成。 1、由and ,but ,or/or else , so , for 等并列连词把连个简单句连接起来而成为 并列复合句。 2、由并列连词词组连接成的并列复合句。常用的并列连词词组有not only …but also …. , either…or…, neither …nor…, not…but…, both…and…, as well as…等等
三、主从复合句“二步”学习法 主从复合句中的从句分为主语从句、宾语从句、表语从句、同位语从句、定语从句和状语从句等6种。前四种均相当于一个名词的作用-----名词性从句。 名词性从句、定语从句和状语从句 第一步、掌握复合句的结构 以下采用线条和图示的方法介绍复合句的结构： 说明： 主句：_________________ 从句：﹍﹍﹍﹍﹍﹍﹍﹍ 连接词： 1.主语从句的两种结构： ①连接词﹍﹍﹍﹍﹍﹍﹍﹍谓_________________ Who are the winners hasn’t been announced . ②It谓_________________ 连接词﹍﹍﹍﹍﹍﹍﹍﹍ It hasn’t been announced who are the winners . 主语从句是整个句子作主语，他可以放在主句的谓语动词之前（结构①），但多数情况是it做形式主语（结构②），而把主语从句放在主句之后。如果主语从句太长，显得笨重，这是我们就采用结构② 这种it作形式主语的主从复合句有以下几种结构： ①It is ＋ n. ＋ that … ②It is ＋ adj. ＋that… ③It is ＋过去分词＋从句
【专题】主从复合句（状从、名从和定从） 【考点分析】 状语从句 1.when, while, as引导时间状语从句的区别； 2.名词词组the minute, the moment, the first time, each time, any time等用作连词，引导的时间状语从句； 3.before,和since引导时间状语从句的用法以及常见的几个句型； 4.till和until的用法； 5.although, though, as以及even if, even though引导让步状语从句的用法； 6.结果状语从句中“so…that”与“such…that”的区别； 7.条件状语从句unless, providing/provided, suppose/supposing等引导词的用法； 8.“疑问词+ever”和“no matter+疑问词”引导从句的用法； 9. in case引导的状语从句； 10.where引导的状语从句； 11.once引导的状语从句。 12.与祈使句、定语从句、名词从句、倒装句以及与强调句型的混合考查。 名词从句 1. that和what引导名词性从句的区别； 2.名词从句的语序和时态； 3. it作形式主语、形式宾语的几种情况； 4.宾语从句的否定转移； 5.whether和if的用法区别； 6.what在名词性从句中的使用； 7.doubt后的名词性从句的使用； 8.Who / whoever, what / whatever等的用法区别； 9.连接词that的省略； 定语从句 1.that与which引导的定语从句的区别； 2.who、whom与whose引导的定语从句的区别； 3.关系副词where、when与why引导的定语从句的区别； 4.对“as”引导定语从句的考查； 5. such…as与such…that的区别；the same…as与the same…that的区别； 6.对“介词+关系代词”的考查； 7.the way 作先行词时,定语从句的引导词作状语用in which ,that 或者省略； 8.含有插入语的定语从句； 9.与并列句、状语从句、同位语从句以及与强调句型的混合考查。 【知识点归纳】 I.句子的种类 复习主从复合句时，我们首先要对句子的种类有所了解，才能更深入地掌握主从复合句的知识。 按用途分
表语从句引导词 The latest revision on November 22, 2020
表语从句 连接词：that / whether /as if /as though 连接代词：who / whom / whose / which / what 连接副词：when / where / why / how / because 1) that 在从句中仅起连接作用，无实际意义，在句中不做任何成分，不能省略。 2) whether在表语从句中表是否但不充当句子的成分。if 不能引导表语从句.如: 1. What the doctor really doubts is whethe r my mother will recover from the serious disease soon. 2. The question is whether it is worth doing. 3) What在表语从句中充当主语宾语表语，表示什么，什么样子，…的人或事. 1. The question is what caused the accident. 2. That mountain is no longer what it used to be . 3. What he told you was what had been discussed at the meeting. 4) who 在表语从句中充当主语，宾语，表语，表示谁。. 1.The problem is who could do the work 2. My trouble is who (whom) I can turn to. 5) which 在引导表语从句时,常充当定语，表语表示哪一个，哪一些。如： I read about it in some book or another, but what I don’t know is which (book) it is. 6) 由as if, as though引导表语从句，表示好像。句子中的系动词常用be, look, appear, seem, sound等。 1. It looks as if it was doing to rain. 2. The young man with long hair looks as if he were a girl. 7) 当主句的主语为reason,或者是由why引导的从句时,与它们相关的表语从 句用that来引导,而不能由because引导；because 引导表语从句时只能用于It/That/This is /was because…句型中. 1. The reason why I was late was that I missed the train. 2. I was late. It/That/This was because I missed the train. 注意：当表语从句中主语、宾语、表语具备，但是还是要表示疑问含义，可以判断句子中缺少状语，常常用相应的特殊疑问词引导，有why, when, where, how等 This is how he did it. That is why the brothers wanted to make a bet. That’s why we’ve given you the letter. 表语从句引导词注意事项 1. that引导表语从句时不能省. 2. if不能引导表语从句. 3. 除that外的所有引导词都有自己的意义。 4. 除that, whether外的所有引导词都须在从句中充当相应的成分
将下列带定语从句的主从复合句变为简单句： 1.The young woman who works in his office used to be a housewife. 2.The boat suddenly struck a rock that was covered by mud and sand. 3.John was always the last student that left the classroom after school. 4.If only I had two lives that I could lay down for my dear motherland！ 5.He made his way through the people who were curious to see the murderer. 6.We badly need some people who are able to do the job successfully. 7.I met a strange old woman who carried a big umbrella in her hand. 8.The policeman examined the chair which stood against the wall. 9.I once visited the house where the president once lived and worked for four years. 10.I have never been to the village where my grandparents once lived 11.They often think of the days when they lived happily together on the island. 12.Spring is the season when t he parks are always full of happy children 13.The reason is his own affair. Why will he stay in the country for more days ? 14.Can you give us one good reason ? Why should you give up studying music ?
表语从句的使用原则 认真观察下列句子，总结标语从句使用的规则 What the police want to know is when you entered the room. 警察想知道的是你什么时候进的房间。 The trouble is that we are short of funds. 困难是我们缺乏资金。 This is what we should do. 这是我们应当做的。 That’s why I want we you to work there. 那就是我要你在那儿工作的原因。 His first question was whether Mr. Smith had arrive 他的第一个问题是史密斯先生到了没有。 She seems as if she had done a great thing. 她看起来好像做了一件大事。 It is because you eat too much. 那是因为你吃的太多了。 My suggestion is that we （should）start early tomorrow. 我的建议是我们明天一早就出发。 规则： 1）连接代词what，which，who，whom，whose，除在句子中起连接作用外，还可在从句中充当主语、表语、定语。表语从句的引导词不能省略。 2）连接副词where，when，why，how除在句中起连接作用外，在从句中还充当时间、地点、方式、原因状语，本身具有词意。 3）As if，as though,just as,because也可用来引导表语从句，引导词不能省略。Because引导表语从句通常只用于This/That/it is because...结构中。As if /though引导表语从句，常置于连系动词look，seem，sound，be，become等后面，常用虚拟语气，表示不存在的动作或状态。4）在一些表示“建议、劝说、命令”的名词后面的表语从句中，谓语动词用虚拟语气。Should+动词原形形式，should可省略。
主从复合句 主句是主体，从句只是句子的一个成分，换言之，将句子（除谓语外）的各个成分扩展开来就成了从句。关联词分五类： 疑问代词：who（whom/whose）， which, what, 关系代词：who（whom/whose）， which, that, 疑问副词：when, where, why, how 关系副词：when, where, why 从属连词：that (无词义)， whether, if, although, after because, before, when, since， as soon as, as long as 只有从属连词没有句子功用，即不担任句子成分。 从句分为五类： 主语从句 宾语从句 表语从句 句中作用如同名词。一般都不用逗号，所用关联词相同：1,连词that/whether/if 2, 疑问代词who/what/which 3, 疑问副词when /where /how /why（引导间接疑问句） 定语从句 状语从句 一．主语从句subject clause，也可分为三种：that引导的主从 / 由连接代副词引导的主从 / what 和whoever等引导的主从。 1由that引导的主从，用得最多。(that 后面是主语) “That she became an artist may have been due to her father’s influence.”她成为画家可能是受其父亲的影响。 上面句子看着别扭陌生，换成it引导的句子就熟悉了，因为一般除强调外都后置而由it代替，有五种形式：
（1）+ that 、、、 It is natural that they should have different views. （2）、、、 It’s a wonder that you are still alive. （3）宾语) or adverbial(副词)) + that、、、 It seems that you’re right. It struck me that we ought to make a new plan. 我忽然想起我们应该制订一个新计划。 It never occurred to me that perhaps she was lying. 我从未想到或许她是在说谎 （4）、、、 It was rumored （It is said） that you was suffering from a stone in the kidney. 谣传说/据说你得了肾结石。 （5）、、、 No, no, it couldn’t be that they were interested in him. 不，不，他们不可能对他有兴趣。口语中that可以省略： It was clear(that) his words pleased her. 显然他的话使她高兴。 When he’ll be back depends much on the weather. Who is to be sent there ha sn’t been decided. It’s clear enough what he meant. 两种结构都能用，但是it结构更多，有四种形式。 It was not clear to me why he behaved like tha t. 我不太清楚他为什么会这样做。 It’s a puzzle how life began. 生命如何开始是一个谜
简单句、并列句和复合句 考点一简单句 1.简单句只包含一个主谓结构. 2.五种简单句: 1)主+谓. He comes at last. 2)主+系+表. She is a teacher. The soup tastes nice. 3)主+谓+宾. They reached the village. 4)主+谓+间宾+直宾. He gave me a pen. 5)主+谓+宾+宾补. I find that book very useful. 考点二并列句 并列句：两个或两个以上的简单句，用连词连接起来。 常用的连接词有： 1.表示顺承关系的：and, not only…but also（不仅….而且….）等。 She gave us a lot of advice, Linda tried to become an excellent teacher, helped us to overcome difficulties. at last she succeeded. 2.表示选择关系和否定条件的有or（还是，否则） Do you want to leave now would you rather set off later? Wear your coat, you’ll catch a cold. 3.表示转折关系的有but, yet 等。 He is young, but he works hard.虽然他年轻，但工作努力。 4.表示因果关系的有for, so 等。 My leg hurts so I go to see a doctor. 我的腿疼，因此我去看医生。 考点三主从复合句：宾语从句 1.宾语从句的引导词 （1）引导陈述句用that(在口语和非正式文体中常常省略) He tells me (that ) he is going shopping this Sunday. (2)引导一般疑问句用if 或whether. She asked me if\ whether she could join us. (whether…or not) (3)引导特殊疑问句，要用原来的特殊疑问词。 She asked them what they were doing. 2.宾语从句的语序：要用陈述句语序。 I want to know when the train left. 3.宾语从句的时态 （1）主句是一般现在时，一般将来时或祈使句，宾语从句可根据实际需要选用各种时态。 He tells us that he has been able to look after himself. (2)主句是过去时态，宾语从句应使用过去时的相应时态。 They said that they had already finished the work. (3)如果宾语从句叙述的是客观事实、真理、自然现象等，不管主句用什么时态，从句 都用一般现在时。 He said that light travels faster than sound. 3. 练习 1）She asked me, “Will you go to the cinema tomorrow?” (改为含宾语从句的复合句)
名词性从句 从句有名词性从句、定语从句和状语从句三大类。 名词性从句又可分为宾语从句、表语从句、主语从句及同位语从句，因为从句的在这个句子中的功用相当于名词； 定语从句有称为形容词性从句，因为从句功能相当于形容词； 而状语从句则称为副词性从句，因为从句功能相当于副词。 什么是名词性从句? 在英语的句子结构中，本来该由名词充当的主语、宾语、表语和同位语，由一个句子来充当,这个句子就叫名词性从句。 宾语从句( The Object Clause) 表语从句( The Predicative Clause) 主语从句( The Subject Clause) 同位语从句( The Appositive Clause) 表语从句 一．定义 在句中充当表语的从句(即放在be动词后面)叫做表语从句。 二．构成 一般结构是“主语＋关联词＋表语从句”。 Our purpose is that he can realize his faults. 我们的目的是他能认识到错误。 注意：引导表语从句的连接词一般不省略。
问题是它是否值得做。 注意：表语从句表示“是否” 只用“whether” 而不用“if”。 三．引导表语从句的关联词的种类 1. 可接表语从句的连系动词有be，look，seem，sound，appear等。 China is no longer what she used to be. 今日的中国不再是过去的中国了。 At that time，it seemed as if I couldn't think of the right word. 当时，我似乎怎么也想不出一个恰当的字眼来。 2. 从属连词whether，as，as if / though引导的表语从句。 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. 听起来好像有人在敲门。 3. because，why引导的表语从句。 That's because he didn't understand me. 那是因为他没有理解我。（That's because…强调原因） That's why he got angry with me. 那正是他对我生气的原因。（That's why…强调结果） 注意：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. The reason why I was sad was that he didn't understand me. 我难过的原因是他没有理解我。