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1、连词的用法概念引入连词就是把两个或两个以上相关的单句组合起来的词语。连词用来连接词、短语、从句或句子， 是一种虚词，不能单独作句子成分；连词可以使句子与句子联系比较紧凑，因而使上下文更加连 贯。连词在英语中的运用比在汉语中广泛得多。在汉语中常把两个或更多的词句等连起来而不用 连词，但在英语中却很少有这种情况。Are we to have a meeting today or tomorrow?我们是今天开会，还是明天？（连接词）He did not come this morning but yesterday evening.他不是今天早晨来的，而是昨天晚上来的。（连接短语）She set
2、out soon after dark and arrived home an hour later.她天黑后不久出发，一小时后到家。（连接短语）Were going to the bookstore in Johns car. You can come with us or you can meet us therelater.我们乘约翰的车去书店。要么你和我们一起去，要么以后到书店找我们。（连接句子） he will come. I dont know whether/if 我不知道他是否会来。 （连接句子）语法讲解 连词的分类1. 连词从本身含义及所连接的语言单位之间的逻辑关系，可分为并
3、列连词和从属连词。 并列连词是用来连接彼此并列的词、短语、从句或句子的词，常用的： and, or, but, for, therefore, not only.but also 等。从属连词通常引导名词性从句即主语从句、宾语从句、表语从句、同位语从句（ that, whether,f 等）以及状语从句（when, while, though, because, if, so that 等）2. 连词从句子结构形式上分为：简单连词：and, but, when, for, if, where 等。关联连词：both.and, neither.nor, as.as 等。短语连词：as if, s
4、o that等。分词连词：given, considering, supposing 等。并列连词并列连词可表示多种意义，但主要有四种，即表示并列、转折、选择、因果等。注意并列连词 在句子中位置比较固定，定位于所连接的语言单位之间，两个并列连词不能并用,而可以与从属 连词并用。表示并列关系的并列连词and 的用法1. 可以连接两个词，多用于肯定句中。Go and fetch something to eat.（连接两个动词如go, come等表示目的）去取些吃的东西来。He started to shout and sing.他开始大叫并唱歌。页1第Read it slowly and cle
5、arly .慢慢念，念清楚。The balloon flew higher and higher .气球越飞越高。You can meet teachers and students.你会见到许多老师和学生。Proper diet and exercise are important to health.适当的饮食和锻炼对健康很重要。2. 连接两个句子，表示因果、对比、条件、假设、目的等。They didnt catch the bus, and had to stay in a hotel for the night. 他们没赶上汽车，只好在旅馆过夜。（因果）Mary likes music
6、 and Lily is fond of sports. 玛丽喜欢音乐，莉莉爱好体育运动。（对比）Work hard and you will succeed. （条件，前面部分常为祈使句）如果你努力工作，就会成功。One more week and well accomplish the task. 再一星期，我们就完成任务。（条件） both.and 的用法both.and意为：“不但而且；既又”，是并列连词，可以并列主语、宾语、表 语、状语、谓语等成分。并列主语时谓语动词用复数形式。Both New York and London have traffic problems. 纽约和伦敦
7、都存在交通问题。The secretary both speaks and writes Spanish. 这位秘书不但能讲而且能写西班牙语。Both teaching and research work are making great strides. 教学与科研都在大踏步前进。The delegates visited both New York and Boston. 代表们既访问了纽约，又访问了波士顿。She both plays the piano and sings.她既会弹钢琴又会唱歌。Both she and the headmaster were pleased with
8、the boy. 她和校长都喜欢这个男孩。The situation both at home and abroad is in our favor. 国内外形势对我们都很有利。not only.but also 的用法not only.but also意为：“不但而且”，是并列连词，可以连接两个词，也可连接两个句子。其中，but also中的also可以省略。not only.but also可以连接句中所有的成分，连接并列主语时，其谓语动词根据就近原则，与所 靠近的成分保持数的一致。Not only the students but （also） their teacher is enjo
9、ying the movie. 不仅学生们津津有味地看着这部电影，而且他们的老师也是如此。He can speak not only French but （also） English.页2第他不但会讲法而且会讲英语。He not only had seen the film but also remembered what he had seen. 他不仅看过那部影片，而且记得影片的内容。not only.but also可以连接两个句子，not only位于句首时，not only后的句子要倒装。Not only is he a scientist, but he is also a fi
10、ghter. 他不但是位科学家而且还是名战士。Not only was everything he had taken away, but his citizenship. 不仅他的一切被拿走，而且他的国籍也被取消。as well as 的用法as well as 起连词作用，表示“同、和、也”等。The editors as well as the proofreaders are working overtime. 编辑和校对者都在加班工作。I have read his novels as well as his plays. 我读过他的小说和剧本。 并列连词 when 的用法 when
11、 作为并列连词，意为“就在那时” I was about to leave when the telephone rang. 我刚想走，突然电话铃响了。We played outside till sunset, when it began to rain. 我们在户外一直玩到太阳下山, 那时天下起雨来了。 表示选择关系的并列连词此类并歹U连词主要有 or, or else, either.or, otherwise, neither.nor, not nor 等。or可以连接两个的词，多用于否定或者疑问句中。主语的人称、数不一致时动词随着接近的主 语而变化。John or you are i
12、n Class Two. 约翰或者你在二班。He never smokes or drinks. 他从不吸烟，也不喝酒。Will you have tea or coffee? 你喝茶还是喝咖啡？Are you leavening for Beijing by train or by plane?你是坐火车还是坐飞机去北京？She will be back either today or tomorrow.她不是今天回来，就是明天回来。Would you like a cup of coffee or shall we get down to business right away? 你愿意先
13、喝咖啡还是我们谈正事。Put on your overcoat, or you will catch cold.穿上你的大衣，不然你会着凉。He must pay the debt or else go to prison.页 3第他必须还债，否则就得去坐牢。（or和else连用）Hurry up, or/or else well be late for the meeting.赶快，否则我们开会要迟到的。注意：or, or else, otherwise三者相比，or else语气较or强，而otherwise语气则最强。Make haste, or (else) youll be late
14、. 快点, 要不然就来不及了。Lets begin; otherwise, we will fall behind. 我们这就开始吧，不然会落后的。I would like you to change this blouse, or else give me my money back.我想要你换掉这件衬衣，要不把钱退给我。 表示转折关系的并歹连词这类连词连接两个含义不同的甚至是反义的词、短语或分句。常见的还有yet（然而），while（而）, however（可是）等。其中while与but的区别在于：while表示对比，而but表示意义正好相反。Learning the guitar is
15、nt difficult, but you have to practice. 学弹吉它并不难，但你得练习。The changes in the city will cost quite a lot, but they will save us money in the long run. 改造城市需要花费很多的钱，但从长远来看还是省钱。Excuse me for breaking in, but I have some news for you. 请原谅我贸然闯入，但我有消息告诉你。In some Asian countries, nodding the head means not “Yes” but “No”. 有些亚洲国家，点头并不表示“是”而是表示“不”。He was in deep trouble, yet he didnt lose heart. 他深陷困境，然而他没有丧失信心。Rick was very successful. However, the last few years of his life were not happy ones. 瑞克非常成功，然而他的晚年并不幸福。You like sports, while Id rather read. 你喜欢体育而我却喜欢读书。They were su
