1、专题六 连词考点精讲考点 1 并列连词并列连词主要用来表示并列关系、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。1.常考并列连词and(2011 年 25 题考查)“和” ，表并列或顺承关系John, work hard and you will make much progress. 约翰,努力学习，你就会取得更大的进步。but（2009 年 30 题考查） “但是” ，表转折关系Id love to but Im afraid I have no time.我很想去，但是恐怕我没有时间。or“或者或否则” ，表选择关系Hurry up, or youll miss the
2、plane. 快点，否则你就赶不上飞机了。for (or) so“因为/所以” ，表因果关系The dress was very expensive, so I didnt buy it. 那件衣服太贵了，所以我没有买。2. 复合并列连词neither.nor 两者都不Neither he nor his children like fish. 他和他的孩子们都不喜欢鱼。either.or 或者或者Either you or he is wrong. 不是你错了，就是他错了。not only.but also 不但而且Not only you but also he wants to buy
3、the book. 不但你而且他也想买那本书。both.and 两者都Both she and I are good at English. 她和我都擅长英语注意：neither.nor, either.or, not only.but also 连接两个成分作主语时，谓语动词要和最近的主语保持一致，即就近原则；both.and 连接两个成分作主语时，谓语动词只能用复数。连接两个句子时，neither, not only 后面的句子要用倒装句。如：Not only did he speak more correctly, but he spoke more easily. 他不但讲得正确些，而
4、且讲得较简单。考点 2 从属连词1.引导宾语从句的从属连词 that, if, whether。that 用来连接宾语从句的陈述句，无词义，可省略。I believe (that) success calls for hard work. 我相信成功需要付出艰辛的劳动。if (or) whether 用来引导宾语从句，表示“是否” ，不可省略。Do you know if (or) whether the museum is open on Sunday? 你知道博物馆星期天是否开门吗？I asked her if (or) whether she could lend me a hand.
5、我问她是否能帮我一下。2.引导状语从句的从属连词。 引导时间状语从句的从属连词when 当时候 从句用一般过去时，主句用过去进行时。It was raining when she arrived at the station.她到达车站时，正在下雨while(2013 年 B 卷 35 题考查) 正当时，正在时while 引导的从句中，谓语动词必须是延续性动词，且常常用进行时。Dont make any noise while others are reading.别人读书时不要制造噪音。until（2012 年 25 题考查）直到常用在“not.until.”结构中，表示“直到才” 。He
6、didnt appear until the meeting had begun. 直到会议开始他才露面。as soon as（ 2013 年 A 卷 25 题考查）一就引导的从句常用一般现在时，主句用一般将来时。Ill visit you as soon as I come back.我一回来就去拜访你。before(2010 年 27 题考查) 先于之后才 before 引导时间状语从句，当主句是将来时时，从句谓语动词须用现在时；before 引导的时间状语从句不能用于否定句。Many people left for home before the film ended.电影尚未放完，许多
7、人就起身回家。 引导原因状语从句的从属连词because 因为,回答 why 引导的问句。Why were you late for class today? 今天你为什么上课迟到了？Because I got up too late and didnt catch the early bus. 因为我起床晚了，没有坐上早班车。since 既然语气比 because 弱，表示原因是对方已知的。Since he says so, it must be true. 既然他这么说，那一定是真的。as 由于，因为语气比 since 弱，表示原因是对方已知的，一般放在主句之前。Mother began
8、to worry about my brother as it was getting dark.由于天越来越黑，妈妈开始为哥哥着急。 引导结果状语从句的从属连词“so. that.”中，so 后侧重强调形容词或副词，意为“如此以至于” 。She is so tired that she cant go any further. 她太累了，不能再走了。 “such.that.”中，such 后侧重强调名词，意为“如此以至于” 。如：Its such a fine day that many people go to the park for fun. 天气这么好，许多人都到公园里来玩。注意：s
9、o.that.结构常与 too.to.结构互换。如：My brother is so young that he cant go to school. 我弟弟太小了，还不能去上学。=My brother is too young to go to school. 引导目的状语从句的从属连词，so that (or) in order that 表示“以便于” 。如：They hurried so that they could get there on time.他们加快了速度，为的是能够按时到达。 引导让步状语从句的从属连词though 虽然 although 尽管 even though
10、(if)即使引导让步状语从句时这些词不能与 but 同时连用。如：Although it rained hard, he still went out. 尽管雨下得很大，他还是出去了。Even though I have enough time, I dont want to go there with him.即使我有足够的时间，我也不想跟他去那。 引导比较状语从句的从属连词从属连词常用结构用法than A than B 用于两者（人或物）进行比较。China has a larger population than India (does). 中国的人口比印度的人口多。as.as.两个 a
11、s 之间需形容词或副词的原级，意为“与一样” 。not as (so).This film is as interesting as that one. 这部电影和那部电影一样有趣。as.as (so) 与 as 之间也用形容词或副词的原级，意为“不如，赶不上” 。Some people think that planes now are not so (or) as safe as trains. 有些人认为现在乘飞机没有乘火车安全。 引导条件状语从句的从属连词if 如果,if 引导的条件状语从句用一般现在时，主句用一般将来时。If he has time tomorrow, he will come to the meeting. 明天有时间的话，他会来参会的。unless 如果不，除非;unless 可以转化为“if.not.”结构。He wont finish the work unless he works hard. 如果他不努力，就不能完成这项工作。
