主要并列連詞的用法
　　1 and: 意為“和，而且”，表示同等關(guān)系或遞進關(guān)系
　　1>. I went there by train and she went there by plane. 我乘火車去那里的，她乘飛機去那里的。
　　2>. Her father is a doctor and her mother is a teacher. 她父親是醫(yī)生，她母親是教師。
　　3>. Tom finished his homework, and they went out to play games. 湯姆做完了作業(yè)，他們就出去玩游戲了。
　　2 but: 意為“但是”，表示轉(zhuǎn)折關(guān)系。
　　1>. She is very old but she is in good health. 她年紀很大了，但身體很好。
　　2>. He is poor, but he is happy. 他窮，但是他幸福。
　　3>. The man shouted to the policemen, but they didn't hear him.
　　4>. Some people don't like summer, but I quite like it. 有些人不喜歡夏天，但是我很喜歡。
　　3 or: 意為“或者，否則”，表示選擇關(guān)系。
　　1>. Are you going with us or will you stay at home? 你同我們一起去，還是呆在家里呢?
　　2>. The students can go swimming or they can go mountain climbing.
　　學(xué)生們可以去游泳，也可以去爬山。
　　3>. You'd better go by taxi, or you will be late. 你乘出租車去，否則要遲到了。
　　4 for:表示“因為，表示因果關(guān)系”。是“前果后因”。
　　1>. He is late for class every day, for he gets up late every day.
　　2>. We passed the exam, for we studied very hard.
　　5. so: 因此，也表示因果關(guān)系，是“前因后果�！�
　　1>. He gets up late every day, so he I slate for school every day.
　　2>. We studied very hard, so we passed the exam.
　　6. not only...but also意為“不但……而且”，表示同等關(guān)系。
　　1>. Not only can he drive a car, but he can also repair cars. 他不但會開車，而且還會修車。
　　2>. He was not only a good father, but he was also a good husband. 他不僅是個好父親，也是個好丈夫。
　　7. either...or意為“不是……就是，或者……或者”，表示選擇關(guān)系
　　1>. You can either do it by yourself or you can ask someone else to do it.
　　你或者自己做這件事，或者請別人做這件事。
　　2>. Either the teacher didn't explain the sentence clearly, or I didn't understand it.
　　不是老師沒有把這個句子解釋清楚，就是我沒有理解。
　　P>　　Only when he is seriously ill, does he ever stay in bed. 他只有病得非常嚴重時才會臥床休息。