Old John is ill. He looks much older than his age. He goes to see a doctor. The doctor checks and says. "Medicine can't help you. You must have a good rest. Stay in a quiet place for a month, go to bed early， drink some milk， walk a lot and smoke（吸烟）one cigar（雪茄）a day. ""Thank you very much. "ays Old John. "I will do everything you say. "

A month later, Old John comes to see the doctor again. "Well. " says the doctor. "I'm glad to see you. You look much younger. " "Oh, Doctor, " says Old John, "I feel quite well now. I have a good rest. 1 go to bed early. I drink a lot of milk， and I walk a lot. Your advice（建议）really helps me. But you ask me to smoke one cigar a day， and one cigar a day nearly kills me at first. It's no joke（玩笑）starting smoking at my age. "