and 做并列连词的用法and 做并列连词有没有什么语法的规定呢?比如说A and B's mother.特别是这句A'

从属连词通常用来引导名词性从句和状语从句.后面紧跟从句,如when,after,because
并列连词一般用来连接两个并列的句子,如;but,so,and.
主要讲when.
当能翻译成“当.的时候”时,是从属连词；翻译成“（正在）这时.”时,是并列连词.如：
I'll ring you up when I get to Beijing.（从属连词）
We were playing football yesterday when it began to pour rain.（并列连词）

连词主要可分为两类：并列连词和从属连词.并列连词用来连接平行的词、词组和分句、句子.如：and, but(但是;通常用not...but...--而是;可是,然而;表示惊讶,不同意等--喔,哇;用来加强语句重复部分的语气--一定;用来引入新话题--那就;常用于否定句--而不,若不;用于含doubt,question等字的否定句中相当于that--对于), or(或者,还是;用于否定句--也不;否则,要不然;也就是说,换言之), nor(用在neither之后--也不;用在no,not,never之后--也不;用在句首,句子需倒装--也不), so(因此,所以;因而,从而), therefore(因此,因而,所以), yet(可是,却,然而), however(然而,可是,不过;无论如何,不管怎样;不管用什么方法;究竟怎样,到底如何), for(因为,由于), hence(因此,由此), as well as(不但,而且;和...一样,和,也), both…and(既...又...;不但...而且), not only…but also(不但,而且), either…or(不是...就是;要么...要么), neither…nor(既不...也不...), (and)then(那么)等等.
[编辑本段]并列连词与并列结构
并列连词引导两个并列的句子.
1)and 与or
判断改错：
(错) They sat down and talk about something.
(错) They started to dance and sang.
(错) I saw two men sitting behind and whisper there.
(对) They sat down and talked about something.
(对) They started to dance and sing.
(对)I saw two men sitting behind and whispering there.
解析：
第一句： and 连接两个并列的谓语,所以 talk 应改为 talked.
第二句：and 连接两个并列的动词不定式,第二个不定式往往省略to,因此sang 应改为 sing.
第三句：and 连接感观动词saw 后面的用作的宾补的两个并列分词结构,因此whisper应改为whispering.
注意：and 还可以和祈使句或名词词组连用表示条件.（or也有此用法）
Make up your mind, and you'll get the chance.
= If you make up your mind, you'll get the chance.
One more effort, and you'll succeed.
= If you make one more effort, you'll succeed.
2)both …and两者都
She plays (both) the piano and the guitar.
3)not only…but (also), as well as不但…而且
She plays not only the piano, but (also) the guitar.
注意： not only… but also 关联两个分句时,一个分句因有否定词not 而必须倒装
Not only does he like reading stories, but also he can even write some.
4)neithe…nor 意思为"既不……也不……"谓语动词采用就近原则,与nor后的词保持一致.
Neither you nor he is to blame.
[编辑本段]表示选择的并列结构
1) or意思为"否则".
I must work hard, or I'll fail in the exam.
2) either…or意思为"或者……或者……".注意谓语动词采用就近原则.
Either you or I am right.
[编辑本段]表示转折或对比
1) but表示转折,while表示对比.
Some people love cats, while others hate them.
典型例题
--- Would you like to come to dinner tonight?
--- I'd like to, ___ I'm too busy.
A. andB. soC. asD. but
答案D.but与前面形成转折,符合语意.而表并列的and, 结果的so,原因的as都不符合句意.
2) not…but… 意思为"不是……而是……"
not 和but 后面的用词要遵循一致原则.
They were not the bones of an animal, but (the bones) of a human being.
[编辑本段]表原因关系
1) for
判断改错：
(错) For he is ill, he is absent today.
(对) He is absent today, for he is ill.
for是并列连词,不能置于含两个并列分句的句子的句首,只能将其放在两个分句中间.
2) so, therefore
He hurt his leg, so he couldn't play in the game.
[编辑本段]连词的误用
因为连词的种类非常多,有并列连词（连接并列句）,有从属连词（引导复合句）,而从属连词引导的从句又可分为三类：名词性从句、定语从句和状语从句.尤其应注意的是有些连词可引导不止一种从句,具有多重功能,这往往是学习的难点,也是易混点.
难点回顾：
1.as可引导多种从句,如时间状语从句、原因状语从句、让步状语从句、方式状语从句、比较状语从句以及定语从句.
〔误〕 Which you can see, he is always ready to help others.
〔正〕 As you can see, he is always ready to help others.
〔析〕as引导非限制性定语从句,当"正像"讲.
〔误〕 Do like I told you.
〔正〕 Do as I told you.
〔析〕like是介词； as是连词,在这里作"按照"讲,引导方式状语从句.
〔误〕 He was reading then he was walking.
〔正〕 He was reading as he was walking.
〔析〕as强调两个动作同时进行,作"一边……一边……"讲.
〔误〕 As he is young, he knows a lot.
〔正〕 Young as he is, he knows a lot.
〔析〕as引导的让步状语从句应用倒装语序,应把表语提前.
2.that可引导多种从句,如定语从句、名词性从句、状语从句等.
〔误〕 You don’t like him is none of my business.
〔正〕 That you don’t like him is none of my business.
〔析〕that引导主语从句,本身无实际意义,但不能省略.
〔误〕 The thief handed everything which he had stolen to the police.
〔正〕 The thief handed everything that he had stolen to the police.
〔析〕everything是不定代词,因此后面的定语从句只能由that引导.
〔误〕 I am happy as you passed the exam.
〔正〕 I am happy that you passed the exam.
〔析〕that在形容词后面引导原因状语从句,不能用as.
3.where可引导多种从句,如定语从句、状语从句以及名词性从句.
〔误〕 Go to find your watch. It’s there where you left it.
〔正〕 Go to find your watch. It’s where you left it.
〔析〕where引导表语从句,相当于at the place where.
〔误〕 The place where there is water, there is life.
〔正〕 Where there is water, there is life.
〔析〕where引导地点状语从句,可以放在主句的前面,也可以放在主句的后面.
〔误〕 I can’t remember in which place I met him.
〔正〕 I can’t remember where I met him.
〔析〕where引导宾语从句,不能用in which.
4.what可引导感叹句、特殊疑问句、名词性从句等.
〔误〕 How an interesting story he told us!
〔正〕 What an interesting story he told us!
〔析〕What an interesting story!=How interesting a story!
〔误〕 I can’t remember the thing what he told me.
〔正〕 I can’t remember what he told me.
〔析〕what引导宾语从句,相当于the thing that.
5.no matter+what/who...与whatever/whoever...的区别：前者只能引导让步状语从句,而后者既可引导让步状语从句,也可引导名词性从句.
〔误〕 I will make friends with no matter who shares my interest.
〔正〕 I will make friends with whoever shares my interest.
〔析〕引导名词性从句时只能用whoever.
〔误〕 You must hand in no matter what you’ve found.
〔正〕 You must hand in whatever you’ve found.
〔析〕 引导名词性从句时只能用whatever.
6.whether和if的区别：两者引导名词性从句时都是从属连词,作"是否"讲,本身不作成分,此时句子中往往出现表示"不肯定"意义的一些短语,如not sure/certain, not known/decided,...is still question, depend on等.
whether 和if 引导动词后的宾语从句时可互换,但下列情况一般只能用whether:
(1) 引导介词后的宾语从句；（2）引导主语从句； （3） 引导表语从句；（4）引导同位语从句；（5）后面出现or not.
〔误〕 If you can pass the exam depends on how hard you work.
〔正〕 Whether you can pass the exam depends on how hard you work.
〔析〕引导主语从句只能用whether.
7.while, when, as 引导时间状语从句时的区别：
while只能表示"在一段时间或过程中",即只能表示时间的"一段",后面一般用进行时或表示状态的结构；when可以表示一段时间,也可表示时间的"一点"；as引导时间状语从句时,表示两个动作同时进行,作"一边……一边……"讲.
〔误〕 I picked up some French words as I was having a holiday in Paris.
〔正〕 I picked up some French words while I was having a holiday in Paris.
〔析〕while强调在……过程中；as说明两个动作同时进行.
〔误〕 We were having classes while someone knocked at the door.
〔正〕 We were having classes when someone knocked at the door.
〔析〕when可表示时间的"一点",而while不能.
8.because, as, since(now that)引导原因状语从句时的区别：
because引导原因状语从句时,表示直接的原因,可以回答why的提问；as只能是一种"附加的"理由,不能回答why的提问；since(now that)多表示双方都已很清楚的事实,作"既然"讲.
〔误〕 Because we’ve finished most of the work, let’s have a rest.
〔正〕 Since(Now that) we’ve finished most of the work, let’s have a rest.
〔析〕表示大家都清楚的理由用since(now that).
9.however和as 引导让步状语从句时的区别：
however引导让步状语从句时,相当于no matter how,后面跟形容词或副词；as引导让步状语从句时,用倒装语序,即把作状语的副词或作表语的形容词或名词提前,而且如果作表语的是单数名词,前面不加冠词,也可以把谓语动词部分的实义动词提前.
〔误〕 As hard he works, he can’t catch up with his classmates.
〔正〕 However hard he works, he can’t catch up with his classmates.
〔析〕见上述说明.
〔误〕 A model worker he is, he remains modest.
〔正〕 Model worker as he is, he remains modest.
〔析〕as 引导让步状语从句,前面的单数名词前不加冠词.
典例调研
〔例1〕 You must put things there you can find them.
there→where.此处应由where引导地点状语从句.
〔例2〕 I remember the time as my grandmother was telling stories to me.
as→when.when引导名词性从句,表示"……的时候".
〔例3〕 A child as he was, he looked quite calm in that difficult situation.
去掉A,child的首字母大写.as引导让步状语从句时,前面作表语的单数名词前不加冠词.
〔例4〕 Don’t make friends with such people that you think are dishonest.
that→as.such...as...搭配在一起用,as引导定语从句.
〔例5〕 He had been admitted by Beijing University made us very happy.
句首加That, 把He改为he.that引导名词性从句,本身无实际意义,也不作成分,但不能省略.
10. 两个并列连词不能连用,但therefore, then, yet.可以和并列连词连用.
You can watch TV, and or you can go to bed.
He hurt his leg, and so / and therefore he couldn't play in the game.
11. although… yet…,但although不与 but连用.
(错)Although he was weak, but he tried his best to do the work..
(对)Although he was weak, yet he tried his best to do the work.
[编辑本段]指导·借鉴
对这些有着多重作用的引导词,大家应通过类比找出它们的异同点,深刻体会它们在不同从句中的作用,然后灵活运用.
强化闯关
1. Anyone leaves the room last should remember to lock the door.
2. He is willing to help no matter who is in trouble.
3. Who breaks the law should be punished.
4. The place he has gone is not known yet.
5. I will buy the dictionary as it is expensive.
6. He said that he would do all what he could to help us.
7. The thing what he had done surprised everybody.
8. As everybody is here, let’s begin our discussion.
9. We will finish the work on time, however difficulties we meet.
答案及解析：
1. Anyone→Whoever或Anyone who. whoever可以直接用来引导名词性从句,相当于anyone who.
2. no matter who→whoever. 引导宾语从句应用whoever.
3. Who→Whoever.who和whoever都可引导名词性从句,但whoever泛指任何人,具有强调语气,who往往指一定的对象.
4. The place→Where.where可以直接用来引导主语从句.
5. as→although.此处让步状语从句是正常语序,因此应用although.
6. what→that或去掉what. what不能引导定语从句.
7. 去掉The thing, 把what的首字母大写.what可以直接引导主语从句.
8. As→Since.since引导原因状语从句,表示大家都清楚的原因.
9. however→whatever.however引导让步状语从句时相当于no matter how, 后面跟形容词或副词；whatever引导让步状语从句时,相当于no matter what,后面跟名词.
[编辑本段]比较so和 such
其规律由so与such的不同词性决定.such 是形容词,修饰名词或名词词组,so是副词,只能修饰形容词或副词.so 还可与表示数量的形容词many,few,much, little连用,形成固定搭配.
so + adj.such + a(n) + n.
so + adj. + a(n) + n.such + n. (pl.)
so + adj. + n. (pl.)such +n. (pl.)
so + adj. + n. [不可数]such +n. [不可数]
so foolishsuch a fool
so nice a flowersuch a nice flower
so many/ few flowerssuch nice flowers
so much/little money.such rapid progress
so many peoplesuch a lot of people
so many 已成固定搭配,a lot of 虽相当于 many,但 a lot of 为名词性的,只能用such搭配.
so…that与such…that之间的转换既为 so与such之间的转换.
[编辑本段]中文中的连词
定义：连词是用来连接词与词、词组与词组或句子与句子、表示某种逻辑关系的虚词.
连词可以表并列、承接、转折、因果、选择、假设、比较、让步等关系.
并列连词：有 和、跟、与、同、及、而、况、况且、何况、乃至等.
承接连词：有 则、乃、就、而、于是、至于、说到、此外、像、如、一般、比方等.
转折连词：有 却、但是、然而、而、偏偏、只是、不过、至于、致、不料、岂知等.
因果连词：有 原来、因为、由于、以便、因此、所以、是故、以致等.
选择连词：有 或、抑、非…即、不是…就是等.
假设连词：有 若、如果、若是、假如、假使、倘若、要是、譬如等.
比较连词：有 像、好比、如同、似乎、等于；不如、不及；与其…不如、若…则、虽然…可是等.
让步连词：有 虽然、固然、尽管、纵然、即使等.
成语中也有使用连词的情况,如： 宁缺勿滥、三思而行、好整以暇
连词是比副词、介词更虚的一个词类,它用来连接词、短语、分句和句群乃至段落,具有纯连接性,没有修饰作用,也不充当句子成分.
一般说来,连词有很多是由副词、介词发展而来的；很多副词、介词又是由动词发展而来.
汉语连词发展史：
（以下内容引自专家专著,欢迎查看作者原文）
上古时期,开始形成的连词,绝大多数是单音连词,比较集中地形成于春秋战国时期.复音连词（主要是双音节的）,上古时也有,但不多.到近代多起来,并形成一个复音连词多样化的发展趋势,更显示出共存与竞争（据王士元竞争变化理论）的现象,最后成为现代汉语复音连词的定型形式.
在产生连词的上古时期,就有一些连词搭配组合使用.连词搭配组合使用的大发展时期在近代.现代汉语中的连词组合形式多产生于近代后期的明清时期.本文是站在现代汉语的立场上,讨论连词从“诞生”到现代汉语中的定型这段历史发展过程中的一些突出特点.正是有了这些发展特点,才使得连词有了当今使用的定型词儿和结构格式.
这些特点表现在四个方面：
一、兼职者分担——精密化.
二、同义者竞争——单一化.
三、异形者更换——通俗化.
四、同形者自汰——纯形化.
五、兼职者分担——精密化
上古早期,连词很少,只有“以、而、且、则、乃、惟、其”等十几个
到春秋战国时期,连词渐渐多起来,一词兼数职也逐渐分工,用法开始固定化.
中古以后,职务的分化与分担甚为明显.
经过近代汉语的职务消长演化,连词分工精细,发展成为现代汉语运用的连词.
上古时一个词儿身兼多职,有的一个职务又兼有多种意义,中古以后发生变化,近代汉语变化尤其大,变化的方式是同义竞争与同义替代,变化的结果是“职务分担”,由一个词的多个义位变成多个词.
兼职分工以后,各词各司其职,有的不担任连词职务了,如“为”.这样,词的职务与词的自身都明确化,精密化了,这是语言发展的必经过程.

You and I are good students.AND 连接主语~!
I like apple and pear.AND连接宾语
You go and do it.AND连接谓语.
You are beautiful and nice.AND连接表语~!
That you go to the park and I do my homework have nothing to do.AND连接两个从句!
应该差不多了.不够的话再问吧!

other:as well as,not only...but also.

并列连词：and but or之类的就是并列连词.并列连词单词前后的两个单词可以互换.
从属连词：用来连接各种从句.until(till)、since 、by就是从属连词.
例句：
并列连词：Apple and banana are very delicious.
从属连词：I studied hard until 12 o'clock last night.

while做连接词时 既可以表并列也可以表转折
具体看句子意思
(1) when表示“当……的时候”,从句中既可以用延续性动词,表示状态或时间段,也可以用非延续性动词,表示动作或时间点； while表示“当…… 的时候”、“在……期间”,从句中只能用延续性动词,表示状态或时间段
She listened closely while he read the letter.
他读信时,她听得很仔细.
I'll take care of your children while you are away.
你不在时我会照顾你的孩子的.
We must strike while the iron is hot.
我们必须趁热打铁.
2.而,然而
I like tea while she likes coffee.
我喜欢喝茶,而她喜欢喝咖啡.
3.虽然,尽管
While I like the color of the hat,I do not like its shape.
虽然我喜欢这顶帽子的颜色,但我不喜欢它的形状.

并列连词在实际运用中最重要地是要做到左右两边平衡：
1. 单词+并列连词+单词
We both shrugged and laughed. 我们两人都耸耸肩,笑一笑.
He came and sat down and spoke to me. 他进来,坐下和我说话.
We felt hot, tired and thirsty. 我们觉得又热,又累,口又干.
He is healthy and handsome. 他既健康又帅气.
2. 短语+并列连词+短语
The butterflies flew over our heads and about the flowers. 蝴蝶在我们头上飞,在花丛中飞.
3. 从句+并列连词+从句
I know that he has been arrested and that he is in prison. 我知道他被捕而且坐牢了.
4. 分句+并列连词+分句
I played the piano and she sang. 我弹钢琴,她唱歌.
5. 其他
I declared this seriously and with confidence. 我严肃而且自信地做出声明.（单词+并列连词+短语）
Let's take him to hospital or something. 咱们送他去医院或做点什么.（分句+并列连词+单词）
注意：
and, both...and 连接两个可数名词时,一般谓语用复数；or, either...or, neither...nor, not only...but also...谓语的数以谓语自身旁边的主语为准.
Both salt and sugar dissolve easily. 盐和糖均易溶解.
Not only the students but also the teacher is enjoying the film.
不仅学生而且老师都在津津乐道地看着电影.
Neither the students nor the teacher knows anything about it. 同学们和老师对此都一无所知.
Neither he nor they are wholly right. 他和他们,谁都不是完全对的.
Either he or I am right. 或者他对,或者我对.

1.and
2.or
3.so
4.but
5.or
6.for
7.but
8.so
9.and
1.Don't make ...for
2.Either ...is ...or...want

转折：but ,however,yet,although,on the contrary,while,nonetheless,nevertheless
并列：and,then,first second,or,not only...but also...,both...and...,neither...nor...,otherwise
再加几个例句：
1.but
He tried hard but he was unsuccessful.他做了很大努力但没有成功.
2.yet
The car was old,yet it was in excellent condition.这辆车子很旧,但仍处于良好的状态.
3.however
She felt ill.She went to work,however,and tried to concentrate.她病了.然而她照旧去上班,并且尽力集中精神工作.
4.nevertheless
I don't know anything against that man; nevertheless I don't trust him.我对那个人没有什么不良的看法,但我不能信赖他.

你还是看一下啊这个吧http://baike.baidu.com/view/1092143.html?wtp=tt

并列连词 when 和引导时间状语从句的从属连词 when 是不同的。这主要表现在以下几个方面： 1. 位置： when 引导时间状语从句时，该从句可放在主句之前也可放在主句之后；而并列连词 when 只能位于两个分句之间，而且前面常常有逗号。例如： Come when you please. 你高兴来就来吧。（ when 为从属连词） When I saw him， he was writing to a friend of his. 我看见他时，他在给一个朋友写信。（ when 为从属连词） I was taking a walk， when I came across him. 我正在散步，突然碰见了他。 2. 意义： when 作从属连词用时，它所引导的从句表示主句中谓语动词动作发生的时间，即作“当……时”解；而并列连词 when 连接的两个分句中，第一个分句表示的是背景，第二个分句表示的是一种突然的、意想不到的情况或过早发生的事情。 when 通常含“这时突然”之义。例如： I was thinking of this， when I heard my name called. 我正想着这件事，突然听到有人叫我的名字。 I had just fallen asleep， when the boor-bell rang. 我刚入睡，门铃突然响了起来。 这种意义在孤立的句子中可以理解到，在文章中更能体会得到。如在“ I was wandering through the street when I caught sight of a tailor's shop ”一句中，“在街头漫步”只是“看见有家缝纫店”的时间，其后作者怎样走进缝纫店，想要什么样的衣服，怎样受到伙计的奚落，又怎样受到老板的奉承等情景均与“漫步街头”没有直接的因果关系。 3. 时态： when 引导的时间状语从句中可以根据句意的需要用一般现在时、一般过去时、过去进行时、分别说明现在，过去，甚至将来的行为；并列连词 when 后面的分句中通常用非延续性动词的一般过去时，其前表时间的分句中可用： （ 1 ）过去进行时表示过去某时间正在进行的动作。例如： I was cooking when I heard her knocking at the door. 我正在做饭，突然听到她敲门的声音。 He was thinking about the problem， when an apple fell to the ground. 他正在思考这个问题，突然有一只苹果掉到了地上。 （ 2 ） was /were going to， was / were about to， was / were on the point of 表示过去某一时间将要发生的动作。例如： I was just going when he came in. 我正要走，这时他就进来了。 We were about to start when it began to rain. 我们刚要动身天就开始下起雨来了。 He was on the point of leaving， when someone knocked at the door. 他刚要走就有人敲门。 （ 3 ）过去完成时表示过早发生的事情。请看下述两种场合： （ a ）过去完成时和含否定意义的 hardly， scarcely， nearly 连用，和 just， little 连用，或者与否定词 not 连用时，表示“刚……，就……”的意思。例如： I had hardly opened the door when he hit me. 我刚一开门他就打了我一下。 I had nearly reached the town， when the young man suddenly said very slowly， “ Do you speak English？ ”我快要进城了，年轻人突然慢慢地说：“你会讲英语吗？” I had been there little more than a week when I set to work in earnest. 我到那儿还不超过一个星期就开始认真干起活来。 I had not been reading for half an hour when I heard steps outside. 我读了还不到半个钟头就听到外面有脚步声。 （ b ）过去完成时与 hardly 等连用时， when 也可以换成 before .例如： Hardly had I left before the trouble started. 我刚一离开麻烦就开始了。 4. 句型： when 引导状语从句时，主句可以是肯定句，也可以是疑问句形式，但 when 连接两个并列分句时，其前的分句只能是肯定句，即只能是不带否定副词 not 的分句。前文（ 3 ）（ a ）最后一个例句算是一个例外。试比较： Mick was sleeping when they went in. （并列句）迈克正在睡觉，他们突然走了进来。 When they came in Mick was sleeping. （主从句）他们进来时迈克正在睡觉。 “ Was Mick sleeping when they came in？ ”和“ What was Mick doing when they came in？ ”只能是对其中主句的提问，因为这时 when 所引导的分句既无突然性也不是句子中的未知信息，而只是另一个动作发生的特定时间

并列连词中,and 作为并列连词有多重含义,除了可以表示并列关系外,还可以表示顺承、目的、条件、反复等关系.

不是.看主语,and与but连接的句子后面的时态,与主语时态一致.如He likes coffe but dosen't like milk.其中likes和dosen't like都属于一般现在时.又如He ate an apple and drant a cup of tea.其中ate和drank都属于一般过去时.凡是并列连词连接,后面的时态都与前面的时态一致.

就是表并列关系呗,可译为“又”“而且”“也”等,有时也可不译.
例如：温故而知新,可以为师矣.（《十则》）

if不是并列连词.连词按照性质可以分成两类：并列连词和从属连词.
并列连词比如：and or but while(然而)等
从属连词比如：if whether until when before after since 等

是的
并列句中的分句通常用一个并列连词来连接,其中的各分句意义同等重要,联系密切,无从属关系.使用时要特别注意其连词特性.
1.由and,not only...but(also)...,neither,nor,neither...nor...等词连接的并列句,在意义上主要对前一句作补充或引伸,包括肯定和否定两方面意义.
1)and连接并列句表示意义的增补、动作的先后、条件和结果等.例如:
One day John was late,and his teacher was angry.
The car broke down halfway,and they had to stay in a small inn for the night.
Think it over,and you'll find a way out.
2)not only...but(also)...表示"不但……而且",重点强调的是后一部分.例如:
Not only is he himself interested in the subject,but also his students began to show interest in it.
Not only is your answer right,but mine also is.
3)neither...nor...,nor,neither等表示否定意义的引伸,放在句首要倒装.例如:
Neither does he work hard,nor does his brother.Mr.Wang doesn't smoke,neither/nor does Li Ping.
2.or,either...or...连接并列句表示选择意义.
1)or常表示选择、换个说法、否定条件等意义.例如:
The children can go with us,or they can stay in.(选择)
The workers were cheerful,or at least they appeared to be cheerful.(换个说法)
Be careful,or you will break your neck.(否定条件.)
注意:or用于表示否定条件时,可以和else连用,或换成otherwise.例如:
Hurry up,or else/otherwise/or you will be late.
2)either...or...连接句子时,选择意义比or强.例如:
Either you are mad,or I am.
You either behave yourself,or you will never go out with me.

看在句子里做的成分不同而定,它还可以做介词,表归属.

and的用法见：http://www.***.com/Article/200811/878.html
but的用法见：http://www.***.com/Article/200811/880.html

因为这个主语就是一个单数啊~主语短语中真正的主语是 “a loss” ,所以即使后面有两个“东西”：dignity and descent,由of连接之后都是形容真正的主语“a loss” 的.不知你看懂了没?就像“装了饼干和糖果的包裹”,主语还是单数的“包裹”一样.
希望可以帮到你=）

并列连词(coordinating conjunction)主要是用来表示并列关系、选择关系、因果推理关系等.也可用来连接平行的词,词组或分句.

简单句
只含有一个主谓结构.
我举个例子
I am learning and Tom is looking.

并列句中的分句通常用一个并列连词来连接,其中的各分句意义同等重要,联系密切,无从属关系.使用时要特别注意其连词特性.
1.由and,not only...but(also)...,neither,nor,neither...nor...等词连接的并列句,在意义上主要对前一句作补充或引伸,包括肯定和否定两方面意义.
1)and连接并列句表示意义的增补、动作的先后、条件和结果等.例如:
One day John was late,and his teacher was angry.
The car broke down halfway,and they had to stay in a small inn for the night.
Think it over,and you'll find a way out.
2)not only...but(also)...表示"不但……而且",重点强调的是后一部分.例如:
Not only is he himself interested in the subject,but also his students began to show interest in it.
Not only is your answer right,but mine also is.
3)neither...nor...,nor,neither等表示否定意义的引伸,放在句首要倒装.例如:
Neither does he work hard,nor does his brother.Mr. Wang doesn't smoke,neither/nor does Li Ping.
2.or,either...or...连接并列句表示选择意义.
1)or常表示选择、换个说法、否定条件等意义.例如:
The children can go with us,or they can stay in.(选择)
The workers were cheerful,or at least they appeared to be cheerful.(换个说法)
Be careful,or you will break your neck.(否定条件.)
注意:or用于表示否定条件时,可以和else连用,或换成otherwise.例如:
Hurry up,or else/otherwise/or you will be late.
2)either...or...连接句子时,选择意义比or强.例如:
Either you are mad,or I am.
转折词,表层进 first, firstly to begin with second, secondly to start with third, thirdly what’s more also and then and equally important besides in addition further in the first place still furthermore last last but not the least next besides too moreover finally -------------------------------------------- 表举例的有for example ,for instance ,to illustrate ,as an illustration, after all -------表解释的有as a matter of fact, frankly speaking ,in other words -------------------------------------------------------------------------------- 表总结的有in summary ,in a word, in brief in conclusion ,to conclude ,in fact ,indeed ,in short ,in other words ,of course it is true, specially ,namely, in all that is to summarize ,thus, therefore
You either behave yourself,or you will never go out with me.
并列连词引导两个并列的句子. 1)and 与or 判断改错： (错) They sat down and talk about something. (错) They started to dance and sang. (错) I saw two men sitting behind and whisper there. (对) They sat down and talked about something. (对) They started to dance and sing. (对)I saw two men sitting behind and whispering there. 解析： 第一句： and 连接两个并列的谓语,所以 talk 应改为 talked. 第二句：and 连接两个并列的动词不定式,第二个不定式往往省略to,因此sang 应改为 sing. 第三句：and 连接感观动词saw 后面的用作的宾补的两个并列分词结构,因此whisper应改为whispering. 注意：and 还可以和祈使句或名词词组连用表示条件.（or也有此用法） Make up your mind, and you'll get the chance. = If you make up your mind, you'll get the chance. One more effort, and you'll succeed. = If you make one more effort, you'll succeed. 2)both …and两者都 She plays (both) the piano and the guitar. 3)not only…but (also), as well as不但…而且 She plays not only the piano, but (also) the guitar. 注意： not only… but also 关联两个分句时,一个分句因有否定词not 而必须倒装 Not only does he like reading stories, but also he can even write some. 4)neither…nor 意思为"既不……也不……"谓语动词采用就近原则,与nor后的词保持一致. Neither you nor he is to blame.
1) or意思为"否则". I must work hard, or I'll fail in the exam. 我必须努力学习,否则我的考试成绩将要下降. 2) either…or意思为"或者……或者……".注意谓语动词采用就近原则. Either you or I am right. 或者是你对,或者是我对.
1) but表示转折,while表示对比. Some people love cats, while others hate them. 典型例题 --- Would you like to come to dinner tonight? --- I'd like to, ___ I'm too busy. A. andB. soC. asD. but 答案D.but与前面形成转折,符合语意.而表并列的and, 结果的so,原因的as都不符合句意. 2) not…but… 意思为"不是……而是……" not 和but 后面的用词要遵循一致原则. They were not the bones of an animal, but (the bones) of a human being.
1) for 判断改错： (错) For he is ill, he is absent today. (对) He is absent today, for he is ill. for是并列连词,不能置于含两个并列分句的句子的句首,只能将其放在两个分句中间. 2) so, therefore He hurt his leg, so he couldn't play in the game.
因为连词的种类非常多,有并列连词（连接并列句）,有从属连词（引导复合句）,而从属连词引导的从句又可分为三类：名词性从句、定语从句和状语从句.尤其应注意的是有些连词可引导不止一种从句,具有多重功能,这往往是学习的难点,也是易混点. 难点回顾： 1.as可引导多种从句,如时间状语从句、原因状语从句、让步状语从句、方式状语从句、比较状语从句以及定语从句. 〔误〕 Which you can see, he is always ready to help others. 〔正〕 As you can see, he is always ready to help others. 〔析〕as引导非限制性定语从句,当"正像"讲. 〔误〕 Do like I told you. 〔正〕 Do as I told you. 〔析〕like是介词； as是连词,在这里作"按照"讲,引导方式状语从句. 〔误〕 He was reading then he was walking. 〔正〕 He was reading as he was walking. 〔析〕as强调两个动作同时进行,作"一边……一边……"讲. 〔误〕 As he is young, he knows a lot. 〔正〕 Young as he is, he knows a lot. 〔析〕as引导的让步状语从句应用倒装语序,应把表语提前. 2.that可引导多种从句,如定语从句、名词性从句、状语从句等. 〔误〕 You don’t like him is none of my business. 〔正〕 That you don’t like him is none of my business. 〔析〕that引导主语从句,本身无实际意义,但不能省略. 〔误〕 The thief handed everything which he had stolen to the police. 〔正〕 The thief handed everything that he had stolen to the police. 〔析〕everything是不定代词,因此后面的定语从句只能由that引导. 〔误〕 I am happy as you passed the exam. 〔正〕 I am happy that you passed the exam. 〔析〕that在形容词后面引导原因状语从句,不能用as. 3.where可引导多种从句,如定语从句、状语从句以及名词性从句. 〔误〕 Go to find your watch. It’s there where you left it. 〔正〕 Go to find your watch. It’s where you left it. 〔析〕where引导表语从句,相当于at the place where. 〔误〕 The place where there is water, there is life. 〔正〕 Where there is water, there is life. 〔析〕where引导地点状语从句,可以放在主句的前面,也可以放在主句的后面. 〔误〕 I can’t remember in which place I met him. 〔正〕 I can’t remember where I met him. 〔析〕where引导宾语从句,不能用in which. 4.what可引导感叹句、特殊疑问句、名词性从句等. 〔误〕 How an interesting story he told us! 〔正〕 What an interesting story he told us! 〔析〕What an interesting story!=How interesting a story! 〔误〕 I can’t remember the thing what he told me. 〔正〕 I can’t remember what he told me. 〔析〕what引导宾语从句,相当于the thing that. 5.no matter+what/who...与whatever/whoever...的区别：前者只能引导让步状语从句,而后者既可引导让步状语从句,也可引导名词性从句. 〔误〕 I will make friends with no matter who shares my interest. 〔正〕 I will make friends with whoever shares my interest. 〔析〕引导名词性从句时只能用whoever. 〔误〕 You must hand in no matter what you’ve found. 〔正〕 You must hand in whatever you’ve found. 〔析〕 引导名词性从句时只能用whatever. 6.whether和if的区别：两者引导名词性从句时都是从属连词,作"是否"讲,本身不作成分,此时句子中往往出现表示"不肯定"意义的一些短语,如not sure/certain, not known/decided,...is still question, depend on等. whether 和if 引导动词后的宾语从句时可互换,但下列情况一般只能用whether: (1) 引导介词后的宾语从句；（2）引导主语从句； （3） 引导表语从句；（4）引导同位语从句；（5）后面出现or not. 〔误〕 If you can pass the exam depends on how hard you work. 〔正〕 Whether you can pass the exam depends on how hard you work. 〔析〕引导主语从句只能用whether. 7.while, when, as 引导时间状语从句时的区别： while只能表示"在一段时间或过程中",即只能表示时间的"一段",后面一般用进行时或表示状态的结构；when可以表示一段时间,也可表示时间的"一点"；as引导时间状语从句时,表示两个动作同时进行,作"一边……一边……"讲. 〔误〕 I picked up some French words as I was having a holiday in Paris. 〔正〕 I picked up some French words while I was having a holiday in Paris. 〔析〕while强调在……过程中；as说明两个动作同时进行. 〔误〕 We were having classes while someone knocked at the door. 〔正〕 We were having classes when someone knocked at the door. 〔析〕when可表示时间的"一点",而while不能. 8.because, as, since(now that)引导原因状语从句时的区别： because引导原因状语从句时,表示直接的原因,可以回答why的提问；as只能是一种"附加的"理由,不能回答why的提问；since(now that)多表示双方都已很清楚的事实,作"既然"讲. 〔误〕 Because we’ve finished most of the work, let’s have a rest. 〔正〕 Since(Now that) we’ve finished most of the work, let’s have a rest. 〔析〕表示大家都清楚的理由用since(now that). 9.however和as 引导让步状语从句时的区别： however引导让步状语从句时,相当于no matter how,后面跟形容词或副词；as引导让步状语从句时,用倒装语序,即把作状语的副词或作表语的形容词或名词提前,而且如果作表语的是单数名词,前面不加冠词,也可以把谓语动词部分的实义动词提前. 〔误〕 As hard he works, he can’t catch up with his classmates. 〔正〕 However hard he works, he can’t catch up with his classmates. 〔析〕见上述说明. 〔误〕 A model worker he is, he remains modest. 〔正〕 Model worker as he is, he remains modest. 〔析〕as 引导让步状语从句,前面的单数名词前不加冠词. 典例调研 〔例1〕 You must put things there you can find them. there→where.此处应由where引导地点状语从句. 〔例2〕 I remember the time as my grandmother was telling stories to me. as→when.when引导名词性从句,表示"……的时候". 〔例3〕 A child as he was, he looked quite calm in that difficult situation. 去掉A,child的首字母大写.as引导让步状语从句时,前面作表语的单数名词前不加冠词. 〔例4〕 Don’t make friends with such people that you think are dishonest. that→as.such...as...搭配在一起用,as引导定语从句. 〔例5〕 He had been admitted by Beijing University made us very happy. 句首加That, 把He改为he.that引导名词性从句,本身无实际意义,也不作成分,但不能省略. 10. 两个并列连词不能连用,但therefore, then, yet.可以和并列连词连用. You can watch TV, and or you can go to bed. He hurt his leg, and so / and therefore he couldn't play in the game. 11. although… yet…,但although不与 but连用. (错)Although he was weak, but he tried his best to do the work.. (对)Although he was weak, yet he tried his best to do the work

1, This is as difficult a problem as you are likely to meet.
像这样的难题, 你可能会碰到.
2,I'll behave toward them as I would like to be treated... 我会以希望别人对待我的方式来对待他们.
Another policeman has been injured as fighting continued this morning... 今早又有一名警员在冲突中受伤.

(表示时间)当还是…的时候
As a schoolboy, he showed every sign of genius.
当他还是个小学生的时候, 就显示出了天资聪慧.

成为, 看作, 看成
We had better treat it as a joke.
我们最好把它当作玩笑.

The dining room was twice as big as the Tom's.
这个餐厅比汤姆的餐厅大一倍.

希望对你有用

并列连词的种类 并列连词 并列连词用来连接属于同一层次并具有相同句法功能的词；短语或句子.
类 别 例 词
表示并列关系 and as well as both…and
not only,but also neither…nor
表示选择关系 or or else either…nor
表示转折关系 but yet while whereas
表示因果关系 for so
从属连词这种连词是用以引导名词性从句和状语从句的.简单从属连词
常见的有：after,although,as,because,before,if,lest,once,since,that,till,unless,until,when,where,whether,while 等.例如：
2) 复合从属连词
由两个或两个以上单词构成的从属连词,如：as if,as far as ,as soon as,according as ,in case ,no matter who(how,what,when,where),rather than,for all that ,given( that),in order that,now (that),on condition that ,(so) that ,provided/providing(that),inasmuch as ,insofar as 等.
3) 关联从属连词 由两个关联构成的,如：as...as,nore(less,-er)...than,no sooner...than,so ...as ,so...that,such...sa ,the...the,whether...or 等,

Because he was ill,he did not attend the meeting.
也可以只删because

I'll stay here _before_ my mother comes back.
before 并列连词 以前
我妈妈回来以前,我将呆在这儿.

根据实际语境判断,for 引导的从属连词,表示解释.第二个句子是并列连词,比如,She is 10 and he is 11. and 在此就是个并列连词.

for当 并列连词 只能并列句子
本句for 后面不是句子 故 不是并列连词
所以这里 for是介词 后面是动名词短语 作介词宾语
是表示原因的

看是怎么个语境,for example,
He is so afraid that he stands there for a long time.
He is afraid any more ,so he stand there for a long time.
前面是复合句,后面是并列句,前面表示如此,后面则是连词.

要知道for作为并列连词的用法.就必须搞清楚because,since,as,for的用法区别.l四者均可用来表示原因,区别如下：
(1) 关于 because：语气最强,表示直接原因,可用于回答 why 提出的问题、引导表语从句、用于强调句等,而其余三者均不行：
“Why didn’t he come?” “Because he was ill.” “他为什么没来?”“因为他病了.”
My stomach hurts because I have eaten too many apples.我肚子痛,因为苹果吃得太多.
That’s because you can’t appreciate music.这是因为你不能欣赏音乐.
It is because he is honest that I like him.是因为他诚实我才喜欢他.
(2) 关于 since 与 as：
a.两者所表示的原因都是人们已知的,即对已知事实提供理由,而不是表示直接原因.since 比 as 语气稍强,且比 as 略为正式,它们引导的从句通常放在主句之前,有时也放在主句之后：
As you weren’t there,I left a message.由于你不在那儿,我留了个口信.
Since you are wrong,you should apologize.你既然错了,就应该道歉.
b.since 可用于省略句,而其他三者不行：
Since so,I have nothing to say.既然如此,我无话可说.
(3) 关于 for：是并列连词(其余三者为从属连词),它有时可表示因果关系(通常要放在主句之后,且可与 because 换用)；有时不表示因果关系,而是对前面分句内容的解释或推断(也要放在主句之后,但不能与because 换用).比较：
The ground is wet,for (=because) it rained last night.地面是湿的,因为昨晚下过雨.
It must have rained last night,for the ground is wet this morning.昨晚一定下过雨,你看今天早上地面是湿的.(此句不能用 because 代 for)
■for引导的从句不能位于它所解释的动词之前：
Because it was wet he took a taxi.因为下雨,他叫了一辆出租车.（这里不能用for）
■for引导的从句不能位于not,but或任何连词之后：
He stole,not because he wanted the money but because he liked stealing.他偷东西,并不是因为他想要钱,而是他有这种毛病.（这里不能用for）
■for引导的从句不能用于回答问题：
—Why did you do it?你为什么这么做?
—I did it because l was angry.因为我生气才这么做的.（这里不能用for）
■ for引导的从句不能单单用来复述已讲过的话,而必须包括新的内容：
He spoke in French.She was angry because he had spoken in French.他讲法语.因为他讲法语,她生气了.（这里不能用for）
但是说：
She was angry,for she didn’t know French.她生气了,因为她不懂法语.（这里用for是正确的,也可用because）
之所以有这些用法上的限定,其理由是for引导的从句不能直接说明某一特定动作发生的原因,而只能提供一些起帮助解释作用的附加说明.例如：
The days were short,for it was now December.天短了,现在已是12月了.
He took the food eagerly,for he has eaten nothing since dawn.他狼吞虎咽地吃了起来,因为他从天亮就没吃过东西.
When I saw her in the river I was frightened.For at that point the currents were dangerous.我看见她在河里时,吓坏了.那个地方水流非常危险.
在口语中,for从句前常稍停一下.在笔语中,在此处常有一个逗号.有时也用一个句号断开,如最后一个例子所示.上面三个例句中也可用becatse,但用for更好些.

连词是连接单词、短语、从句、分句或句子的一种虚词,在句子中不单独做句子成分,一般不重读.
连词按其结构可分为：
1,简单连词如and,or,but,if,because等
2,关联连词如both...and...,not only...but also...等
3,分词连词
4,短语连词
连词按其性质又可分为
1,等立连词,这种连词是以连接并列的单词、短语、从句或分句的,如and,or,but,for等
2,从属连刺,这种连词是用以引导名词性从句和状语从句的.前者如that,whether等,后者如when,although,because等.
p.s.英语中有些廉洁副词的性质与等立连词相似.常用的连接副词有besides,hence,however,meanwhile,moreover,still,then,therefore,thus等

SHe was busy cooking while they were watching TV.
while 是 当他们看电视时 她忙着做饭.当.
换成but 意思就变成 她忙着做饭 但是他们在看电视
可以替换 只是句子意思也会变
点头表示同意,摇头表示不同意 and
点头表示同意,但是摇头表示不同意 but
点头表示同意,那么同时 摇头表示不同意 while
点头表示同意,那么摇头就表示不同意,so ,只出现在你只有点头和摇头两个选择代表什么意思时候

表示并列关系的连词主要含有“和”、“补充”、“增加”等意思.
例如：和、跟、与、同、及、而、况、况且、何况、乃至

属于转折连词,意思为“否则的话”,相当于“if not”,例如：Do as you are told,otherwise you'll be in trouble.

这就是一个上下文的理解了
作家穷苦出生
穷苦潦倒伴随他一身,难倒你选C说但是
除非说作家富贵出身,但是穷苦潦倒伴随他一生,这样的情况选C还差不多

iturned on the tv and i watched tv
i bought my sister a present but she didn't like it

不一定呀,它可以连接两个单词（要同类且一致）
如
He helps me and I help him .
He can speak English and Chinese .
如果不明白,请再问；如果对你有所帮助,
请点击本页面中的“选为满意回答”按钮,

链接两个胳膊只需要一个躯干就够了
所以,英语中只保留一个
我们汉语喜欢成双成对,所以才有因为所以,虽然但是
但是你说的并列连词,太多了,neither nor 就不能省略啊,或者说,我没有真正读懂你的意思

没错,就是这样的,但是我们在写文章的时候还是要避免这么用,两个句子之间最好还是用but and什么的连接一下.

词性要一致,其他的如果是并列动词,则时态要一致

（一）连词（24个）
1. after 在……以后 2. and 和；又 3. as 像……一样；如同；因为 4. because 因为
5. before 在……之前 6. but 但是 7. if 如果；假使；是否；是不是 8. neither 也不
9. nor 也不 10. or 或者；还是；否则 11. since 从……以来；……以后 12. that 既然；由于；（引导宾语从句等） 13. though 虽然 14. till 直到；直到……为止
15. until 直到；直到……为止 16. when 当……的时候 17. whether 是否 18. while 在/当……的时候；和……同时 19. than 比 20. so 因此；所以
21. both…and… 两个都；既……又…… 22. not only…but also… 不但……而且……
23. either…or 或者……或者……；不是……就是…… 24. neither…nor… 既不……也不连词主要有but ,however,yet,although,on the contrary,while
,and, then, first second,or,not only...but also...,both...and...,neither...nor...
（二）,并列连词和从属连词按语义分如下几种：
A,常见的表示语义引申的并列连词有：1.and
Justice is on your side. And justice will triumph over injustice. 正义在你们一边,而正义是会战胜非正义的.
2. neither... nor
She could neither speak the language nor write it. 这种语言她既不会说,也不会写.
3. both... and
A man should have both courage and perseverance.一个人既要有勇气又要有毅力.
4. not only... but also
We should not only be bold, but also be cautious. 我们不仅要大胆,而且要谨慎.
5. as well as
I have read one of his novels as well as a few of his plays. 我读过他的一本小说和几个剧本.
B,表示选择的并列连词有：
1. or
You may do it yourself, or ask someone else to do it. 你可以自己做或者让别人做.
2. either... or
I left it either on the table or in the drawer. 我不是把它放在桌子上了,就是放在抽屉里了.
除了表示选择外,or和either... or还可以表示否定的条件：
1) Now I must go or (if not) I shall be late for the party. 我现在得走了,否则晚会我就要迟到了.
2) You'll either behave yourself, or you'll never go out with me. 你要么老实点,要么就永远不能跟我一起出去.
C,表示转折或对比的并列连词有：
1. but
He tried hard but he was unsuccessful. 他做了很大努力但没有成功.
2. yet
The car was old, yet it was in excellent condition. 这辆车子很旧,但仍处于良好的状态.
3. however
She felt ill. She went to work, however, and tried to concentrate. 她病了.然而她照旧去上班,并且尽力集中精神工作.
4. nevertheless
I don't know anything against that man; nevertheless I don't trust him. 我对那个人没有什么不良的看法,但我不能信赖他.

D,表示因果关系的并列连词有：
1. for
You'd better put on your sweater, for it's rather cold outside. 你最好把毛衣穿上,外边相当冷.
2. so
My sister is expecting me,so I must be off now. 姐姐在等我,因此我得走了.
3. therefore
You are right, therefore we should support you. 你是对的,所以我们应当支持你.
4. hence
I fell off my bike yesterday—hence the bruises. 我昨天骑自行车摔倒了——所以青一块、紫一块的.

从属连词是用来引导从句的.分为如下几种：
A,引导时间状语从句的从属连词有：
1. when
There was prolonged applause when he began to speak. 他开始讲话时响起了经久不息的掌声.
2. while
We should strike while the iron is hot. 我们要趁热打铁.
3. as
As (When) he entered, the hall burst into thunderous applause. 当他进来时,全场发出雷鸣般的掌声.
4. after
After I visit Shanghai I'll travel up the Yangtze. 访问上海之后,我将溯长江而上.
5. before
It would be months before he was fit for the work. 要过好几个月他才能适应工作.
6. since
It is just a week since we arrived here. 我们到这里才一个星期.
7. until (till)
I shall stay here until (till) I've completed my studies. 我要在这里待到学习结束为止.
8. as soon as
As soon as he got well, he went back to work. 他病一好就回去上班了.
9. once
Once he said that, I knew he was lying. 他一说这话我就知道他在撒谎.
B,引导原因状语从句的从属连词有：
1. because
He failed because he was too careless. 因为他太粗心,所以失败了.
2. as
As it was already rather dark, we decided to stop at the temple for the night. 因为已经相当晚了,我们决定在庙里待一夜.
3. since
Since you don't want to go, we won't force you to. 既然你不愿意去,我们也不勉强你.
4. now that
Now that you are all back, we'd better start the work right away. 你们既然都回来了,我们最好马上就开始工作.
5. considering (that)
They did the job quite well considering (that) they had no experience. 考虑到他们没有什么经验,这项工作他们已经干得不错了.
6. seeing that
Seeing that (Since) nobody was very enthusiastic about it, they decided to cancel the trip. 由于都没有很高的热情,他们决定取消这次旅行.
C,引导条件状语从句的从属连词有：
1. if
If you can do it, so can I. 你要是能办到,我也能办到.
2. even if
We wouldn't lose heart even if we should fail ten times. 我们就是失败十次也不灰心.
3. unless
I won't go unless you want me to. 除非你要我去,否则我是不会去的.
4. in case
We'd better take our raincoats in case it should rain (rains). 我们最好把雨衣带着以防下雨.
5. provided /providing (that)
I'll come provided (providing) (that) you let me know in good time. 你要是及时通知我是会来的.
6. suppose/supposing (that)
Suppose (Supposing) (that) he won't agree, what shall we do? 假如他不同意,我们怎么办?
7. as (so) long as
You may use the room as long as you keep it clean. 只要保持清洁你可以用这个房间.
8. on condition (that)
I'll lend you the book on condition (that) you return it on Monday. 只要你能在星期一还我,这本书我就借给你.
D,引导让步状语从句的从属连词有：
1. although / though
Everybody worked with great enthusiasm although/though the weather was extremely cold. 虽然天气很冷,大家工作得非常起劲.
2. even if (though)
Even if I have to walk all the way I'll get there. 即使我得一路走着去,我也要去那里.
E,引导比较状语从句的从属连词有：
1. than
We have produced 20% more cotton this year than we did last year. 我们今年棉花产量比去年高百分之二十.
2. as (so)...as
He doesn't play half as well as his sister. 他演奏的水平不及他姐姐的一半.
F,引导目的状语从句的从属连词有：
1. lest
She explained again and again lest people should misunderstand her. 她一再解释唯恐人们误解.
2. so that
Speak clearly so that we may understand you. 讲话要清楚,以便我们能听明白.
3. in order that
He assigned us some books to read at home in order that (so that) we might have a deeper understanding of the subject. 他指定几本书给我们回家看,以便我们对这一主题有一个较深的了解.
G,引导结果状语从句的从属连词有：
1. so...that
She was so moved that tears came to her eyes. 她感动得热泪盈眶.
2. such...that
It was such a boring speech that I fell asleep. 演讲枯燥乏味,听得我都睡着了.
另外:引导名词性从句的连词有三个：(1)that (本身无意义),(2)whether (or not),(3)if.例如：
That they will refuse the offer is unlikely. 他们不太可能会拒绝这个建议.
I don't know whether (=if) these figures are accurate. 我不知道这些数字是否精确.
需要注意的是：whether (or not) 可引导大部分名词性从句；if仅可引导宾语从句,而且不可跟or not.例如：
Whether (≠if) they will come or not won't make much difference. 他们来不来关系不大.
I wonder if (=whether) she has received our telegram. 我不知道她是否收到了我们的电报.

常用的并列连词：表并列关系：and,neither...nor.,either...or..., as well as , not only ...but also...表转折关系：but,yet,however,still,while表选择关系：either...or...,neither...nor...,or,otherwise表因果关系：for,therefore,so

例：
she said she came from china and that she was eighteen.
said后面接有两个宾语从句,第二个从句前面的that不可省.
你说的是这个特殊用法吗?
一般来讲动词或短语后面接的宾语从句前面可以加that也可省略,没什么特别要求.如：
they found out(that).
she thinks(that)...
但做同位语时that不可省略.如：
i don't know the fact that .
they've got the news that ...
这里that后面的句子表示news和fact的内容.

没错,这是for引导原因状语从句的一种说法,这也正是它和because/since/as的不同之处.
此时,for引导的原因状语从句只能放在句尾,起补充解释说明前句之用,视同于and引导并列句的用法,而且其表示的原因只是个人主观解释,大多数情况下并不构成真正原因.
如：He must be in now,for the light in his room is on.
他现在一定在家,因为他房间的灯是亮着的.（灯亮其实并不能说明人一定在家）.

1.when 2.or 3.so 4.but/however 5.or 6.and 7.but 8.so 9.then
don't make any noise,for?they are having a lesson
either he is ill or he doesn't want to come
你随便参考一下吧.