6. I think you have been fortunate. 我认为你很幸运。 be fortunate to have done sth. / be fortunate in doing sth 在……方面很幸运； e.g. He was fortunate to have had the chance of doing so. 他真幸运能有机会做那样的事情。You are fortunate to have had the help and guidance of such a man. 有这样的一个人给你帮助和指点，你真幸运。You are fortunate in being able to study here. 能在这儿学习，你们真的很幸运。We were fortunate in finding the cave without any trouble. 我们真幸运，毫不费力地就找到那个山洞。 7. Have you ever used the hot-cloth-and-frozen-peas treatment? 你以前用过热布冷豆治疗法吗？treatment n. 治疗；疗法； 8. And so on and so on. 就这样热敷和冷敷反复交替进行。and so on and so on = again and again / over and over 这里用了两次and so on，意思是 “反复循环地进行…… ”；e.g. We listen to the recording, try to imitate the pronunciation and intonation and make dialogues among ourselves and so on and so on. This is the way we learn spoken English. 我们听录音，尽力模仿语音语调，然后自己编对话，如此循环往复，这就是我们学习英语口语的方法。Life is exactly the same for middle school students. In the morning they have four classes, in the afternoon another four classes and in the evening three hours for self-study and so on and so on. 中学生的生活是一成不变的。上午四节课，下午又四节课，晚上三个小时的自习，如此循环往复。 此外and so on and so on 还可以说成 and so on and so forth 。 9. What does that do? 那起什么作用呢？句子中的第二个do的意思是：产生效果；有益处；起作用；e.g. The new rule may do some good. 新规定可以产生一些良好的效果。The room will do me quite well. 这房子很合适我住。
