专题 9 并列句和状语从句考纲展示 命题探究基础点由并列连词连接的，两个或两个以上的分句放在一起的句子叫并列句。不同的并列连词有不同的意义，也折射出各个分句之间的不同逻辑关系。根据分句之间的不同关系，并列句可以分为以下几种：1 表示并列或递进关系的并列句表 示 并 列 关 系 的 连 词 有 and, both...and..., not only... but also..., neither... nor...等。Both New York and London have traffic problems.纽约和伦敦都有交通问题。Not_only the students but_(also) their teacher is enjoying the movie.不仅学生而且老师也喜欢这部电影。2 表示选择关系的并列句表示选择关系的并列连词有 or, or else, otherwise, either...or..., not... but...等。Be careful about what you say or you may regret it.当心你讲的话，否则你会后悔的。You can come either on Saturday or on Sunday.你可以星期六或者星期日来。3 表示对比转折关系的并列句表示转折关系的并列连词有 but, yet, however, whereas, nevertheless, while 等。I would have written before, but I was ill.我本该早写信的，但我生病了。I have failed, yet I shall try again.我失败了，但我还要再尝试。Some men are rich, while_(whereas) others are poor.一些人富有，但其他人贫穷。4 表示因果关系的并列句表示因果关系的连词有 so, for, thus, therefore 等。It must have rained last night, for it is wet all over.昨晚一定下雨了，因为到处都是湿的。The shops were closed, so I didn't get any milk.商店都关门了，所以我没买到牛奶。5 when 可用作并列连词，相当于 and at this/that time，意为“正在这时，突然”。这种用法常用于下列句式：sb. be about to do/on the point of doing sth. when...某人正要做某事突然……sb. be doing sth. when...某人正在做某事突然……sb. had just done sth. when...某人刚做完某事突然……We were_having a meeting when someone broke in.我们正在开会，这时有人闯了进来。We were_about_to_set_off_when_it suddenly began to rain.我们正打算动身，突然下起了雨。I had_just_finished my homework when Tom came to me.我刚写完作业，...
