1、用并列连词，逗号连词或分号把两个或两个以上的、具有逻辑关系的简单句连接成一体，就构成了并列句。并列句中的前后两个分句根据其逻辑关系可以分为以下几种：一、添加关系前后两个分句在意思上是顺连和添加。使用并列连词and最多，not only.but also.也可连接两个并列的分句。Talents come from diligence,and knowledge is gained by accumulation.天才在于勤奋，知识在于积累。Not only does he speak English correctly,but also he speaks it fluently.他不仅英语说得
2、对，也说得很流利。二、转折关系多用连词but,yet,while,whereas等连接两个分句，前后两个分句在语意上为转折关系。The composition is all right,but there is room for improvement.这篇作文很好，然而仍有改进的空间。He must be over sixty,whereas his wife looks about thirty.他一定有60多岁了，而他的妻子看起来大约30岁。三、选择关系主要用or,either.or.,neither.nor.,otherwise等连词连接，前后两个分句为选择关系。Either we g
3、o now or we remain here forever.要么我们现在走，要么我们永远在这儿呆下去。Neither could theory do without practice,nor could practice do without theory.理论没有实践不行，实践没有理论也不行。点津 使用neither.nor.连接两个分句时，因为都是否定词，所以它们后面的分句均倒装。四、因果关系多用连词for和so连接。for表示原因，对前面的情况加以解释，用逗号把它和前面的分句分开；so表示结果，意为“因此，所以，于是”。I apologized to her,for I had wr
4、onged her.我向她道歉了，因为我错怪了她。It was late,so we went home.天晚了，所以我们就回家去了。五、时间关系指用并列连词when连接两个分句而构成的并列句，表示“就在这时突然”。I was about to leave when the telephone rang.我刚要走，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。.合并句子将下面各题中的两个分句合并成一个句子1a.He could all day sit on a wet roc
5、k and fish.b.He did not say a word._答案：He could all day sit on a wet rock and fish and he did not say a word.或He could all day sit on a wet rock and fish,and he did not say a word.2a.The university seemed small.b.The university had many great programs._答案：The university seemed small,but it had many
6、great programs.或The university seemed small,yet it had many great programs.3a.Stop smoking now.b.Your health will be ruined._答案：Stop smoking now,or your health will be ruined.或Stop smoking now,or else your health will be ruined.或Stop smoking now,otherwise your health will be ruined.4a.Kates parents
7、were proud of her.b.Kate was the first member of the family to graduate from high school._答案：Kate was the first member of the family to graduate from high school,so her parents were proud of her.或Kates parents were proud of her,for she was the first member of the family to graduate from high school.
8、5a.Tom has always been interested in computer science.b.Tom is majoring in English now._答案：Tom has always been interested in computer science,but he is majoring in English now.或Tom has always been interested in computer science,yet he is majoring in English now.翻译句子1我的脸红了，我不知道如何是好。_答案：My face turned
9、 red and I didnt know what to do.2她一定是病了，因为她今天早上没来上学。_答案：She must be ill,for she didnt come to school this morning.3我爱喝黑咖啡，而她喜欢喝加奶油的咖啡。_答案：I like drinking black coffee while she prefers it with cream.4这不仅能提高小学生的效率，而且也激励学生比以前学习更努力。_答案：Not only can it improve pupils efficiency but also it inspires pupils to work harder than ever.5一定要选择一个好的并且适合的班级或老师，要不然的话，那将会浪费时间和金钱。_答案：Be sure to choose a good and suitable class or teacher,otherwise it would be a waste of time and money.