什么是英语复合句

英语的复合句（compound sentence）容易与复杂句（complex sentence）混淆。两者的共同点是都是包含了两个或更多的单句。不同点是，复合句是由并列连词(coordinating conjunction)来连接单句，比如and, but，or等。复合句也称“并列句”。复合句中的单句之间无从属关系，都视为主句；而复杂句则是由从句的引导词来连接一个主句和一个或一个以上的从句构成。比如：

简言之含有从句的句子就叫复合句但注意引导从句的连词是从属连词不是并列连词更不是介词只要是复合句，两个句子之间一定要有从属连词，像and，but什么的是不行的因为是并列连词可以引导并列句。复合句和并列句不是一个概念。Fourdaysaftersettingout,whiletheTitanicwassailingacrosstheicywatersoftheNorthAtlantic,ahugeicebergwassuddenlyspottedbyalookout.这个句是复合句，是因为有了while引导的状语从句所以是复合句，while在这里是从属连词是因为有了它，这两个句子之间才可以不加and，这个句子才是对的一般引导从句的连词都可以泛称为从属连词但也可以具体地分为引导名词性从句的连词叫连接词分为可以在从句中充当成分的连接代词和连接副词以及不能充当成分的连接词引导定语从句的连词叫关系词分为关系代词和关系副词在从句中充当成分引导状语从句的连词叫从属连词一般不作句子成分

复合句也称主从句，即主句和从句，从句须有引导词或叫连词引出，否则复合句不成立。由于连词既起连接主句和从句的作用，表明主从句之间的关系，还在从句中充当一定的成份，有一定的意义，故复合句中的连词常成为考查的焦点。从句有三种：1.名词性从句2.定语从句(形容词性从句)3.状语从句(副词性从句)引导从句的词有哪些呢？1.名词性从句包括主语、表语、定语和同位语从句that－只起连接作用，在从句中无成分或意义，引导宾语从句时可省略；if－“是否”，只引导宾语从句，不省略；whether－当“是否”讲，常和or not连用，意思相同，只是语气强“是还不是”，不可省略；what－“什么”或代替所说的话，所做的事，在从句中作主语，宾语或表语；which－“哪个”在从句中作主语，宾语或定语，指代人或物都可；who－“谁”在从句中作主语或宾语，指人；whom－“谁”在从句中作宾语，指人；whose－“谁的”在从句中作定语，指人；where－“在哪里”或代替所指的地方，在从句中作状语；when－“什么时候”或代替所说的时间，在从句中作状语；why－“为什么”或代替所说的原因，在从句中作状语；how－“怎么样”或代替所说的方式、方法，在从句中作状语。还有whichever，whoever，whomever，whosever等，比一般连词语气强。2.定语从句，也叫形容词从句，因为它在复合句中作定语，修饰名词或代词，相当于一个形容词的作用。判断定语从句首先看是否有先行词，否则应视为别的从句，引导定语从句的词叫关系代／副词。That－指人或物，在从句中作主语，宾语或表语，作宾语时可省略；which－指物或整个主句，在从句中作主语或宾语，作宾语时可省略；who－指人，在从句中作主语或宾语，作宾语时可省略；whom－指人，在从句中作宾语，可省语；whose－指人或物，在从句中作定语；as－“正如，正像” 指人或物，在从句中作主语或宾语，多与the same…或such…在先行词前搭配使用，也可指代整个主句，此时，As…从句可放句首，即主句前；when－指时间，在从句中作状语；where－指地点，在从句中作状语；why－指原因，在从句中作状语。3.状语从句，也叫副词从句，因为它在复合句中作状语，起副词作用。状语从句按其意义可分为时间、地点、条件、原因、目的、结果、让步、方式、比较九种。1)时间状语从句when－“当…时候”，“在…之后”，表示主从句动作的一先一后，或一个在进行中，另一个突然发生；while－“在…期间”，“随着…”表示从句动作在持续中；as－“一边…一边”，表示与主句动作的伴随性；after－“在…之后”表示主句动作在从句动作之后发生；before－“在…之前”，主句动作在从句动作之前发生；since－“自从”，从句中是过去时态，主句用现在完成时，现在完成进行时，或be动词的现在时；till－“直到”主句动作持续到从句的动作发生；until－“直到”多用在“not…until”句式中，主句为非持续性动用，从句动作发生在主句动作之前；as soon as－“一…就”，常用“主将从现”句式中2)地点状语从句where－“哪里”，“在…地方”wherever－“无论在哪里”anywhere－“在…任何地方”everywhere－“到处”3)条件状语从句if－“如果”，“假如”unless－“除非”，“如果不…”，=if…not…4)原因状语从句because－“因为”，侧重从句内容；since－“由于”，“既然”，侧重主句内容；as－“由于”侧重主句内容；now that－“既然”=since5)目的状语从句so that－“为了…”，不能放在主句之前；in order that－“为了…”，可放主句前面；如：She didn't move to the suburb so that/in order that she could look after her mother.In order that she could look after her mother,she didn't move to the subur B.6)结果状语从句so…that－“如此…所以…”such…that－“这么…所以…”so that－“结果…”so－“所以…”，引导并列句表结果；7)让步状语从句whether…or“无论是否…”8)方式状语从句as－“正如…，正像…，按照…”=like.like－“像…，按照…”=as9)比较状语从句as…as－“和…一样”not as/so…as－“和…不一样”(形容词或副词用原级)than－“比…更…”，形容词或副词用比较级；

为您解答比如I want to remember that you are a good man.应该是算的，因为这里至少有个宾语从句，做不定式里动词的宾语，有从句就是复合句。

复合句:由一个主句和一个或一个以上的从句构成，所以它的全称为主从复合句。主句是全句的主体，通常可以独立存在;从句则是一个句子成分，不能独立存在，而且从句须由一个关联词引导。

是的，定语从句属于复合句的一种。

从句子结构上来说，句子有三种：简单句、并列句和复合句。简单句有一个主语或多个主语和一个谓语；一个主语和多个谓语。并列句是由并列连词连接的两个或多个简单句。复合句指的是含有两个或更多的主谓结构的句子，其中有一个（或更多）主谓结构充当句子的某一（些）成分，如主语、宾语、表语、定语、状语、同位语等。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都属于复合句。 一、状语从句： 状语从句 Adverbial Clause，从句用作状语称为状语从句。根据用途，状语从句可分为时间、地点、原因、条件、方式、让步、结果、目的等状语从句。I. 时间状语从句 时间状语从句表示时间，常用的关联词有when, until, as, after, before, once, since, as long as, whenever等等。例: 1) When you cross a main road, you must be careful.2) He went out to play football after he had finished his homework.3) Wait until you are called.4) I can't recognize you. You are so changed since last we met.5) He didn't go to school until he was eleven.You can use my house as long as you are careful.He is so terrible once he is drunk.I listen to the radio while I walk every evening.II. 地点状语从句 地点状语从句表示地点，常用的关联词有where, wherever, anywhere等。例如：1) Put it where you found it.2) Sit down wherever you like.3) Anywhere she goes, he goes too.III. 原因状语从句 原因状语从句表示原因或理由，常用的关联词有because, as, since, in case等。1) I eat ice-cream so much because I like sweet food.2) As I didn't know the way, I asked a policeman.3) Since you won't help me, I'll ask someone else.I'll take my raincoat in case it rains. (in case it rains = because it may rain)我将带上雨衣，以防下雨。IV. 条件状语从句 条件状语从句表示真实的或现实的条件，引导从句所用的关联词有if, unless, suppose, in case(that), in the event (that), as (so) long as等等。1) If it snows tomorrow, we will build a snowman.You'll be late, unless you hurry.3) Suppose we are late, what will he say? (suppose从句必须放在主句之前) 我们如果迟到了，他会说什么？4) In the event that our team wins, there will be a party.5) In case it rains, do not expect me. 如果下雨，就不要等我了。6) He will do anything as(so) long as it is interesting. 只要好玩，他什么都愿意做。V. 方式状语从句 方式状语从句表示动作的方式，回答How的问题，常用关联词as, as if, as though, the way(that), in the way(that)等引导，一般置于主语之后。Do as I say. I did just as you told me. 照我说的去做。我就是照你说的去做的。He acts as if/as though he is the owner. 他行为举止好象是这儿的主人似的。They did it in a way that I had never seen before. 他们以我从没见过的方式行事。I was never allowed to sing the way I wanted to. 我从未被允许用自己想用的方式唱歌。VI. 让步状语从句 让步状语从句表示“虽然、尽管、即使”等概念，使句子具有对比的因素。常用的关联词有although, though, even if, even though, not that(=although…not)等，置于主语之前或后。1) Although you feel very ill right now, this is still a common disease.2) Though he has lived for years in London, he writes in French.3) We intend to go U.S., even if air fares are expensive.4) Even though fruits are good, you can't live with fruits only.5) I'm OK now, not that I slept (although I did not sleep) very well last night.VII. 结果状语从句 结果状语从句表示结果， 常由连词so…that, such(a/an)…that, so that, such that等引导，置于主语之后。She was so frightened about the dog that she cried.The news worried him so much that he didn't sleep at all for the whole night.He is such a wonderful joker that you can't help laughing.They are such wonderful players that no one can beat them.We arrived early, so that we got good seats.The weather was such that I couldn't go out.VIII. 目的状语从句 目的状语从句表示目的，回答what for或 for what purpose的问题，常用关联词so that, in order that等引导，一般置于主语之后。目的状语从句中的谓语动词常由“情态动词+动词原形”构成。Ships carry lifeboats so that people can escape if the ship sinks.They wrote the notice in several languages so that foreigners could understand it.We carved their names on the stone in order that people should always remember them.They risk their lives so that/in order that they may support their kids.