1.B
由"Medicine cant help you.(药物帮不上你的忙)可知
2.B
由 "I feel quite well now.可知.
3.B
由and the one cigar a day nearly killed me at first.Its no joke to start smoking at my age."(刚开始一天抽一支烟差点要了我的命.在我这个年龄开始抽烟可不是闹着玩的)可知.
4.D
医生说"Im glad to see you.You look much younger.”你看上去年轻多了,说明一个月以前他显老.
5.C
文章的标题要靠自己领会了.