21. Today's doctors are better than the doctors in the past. Talk about the differences. Read the paragraph and compare their medical instruments and working conditions. Tochi was a doctor many many years ago. People said "Medicine man" for him. When a person was ill, he always asked the same questions. The questions were: 1How old are you ? 2Where is the pain? 3When did the pain start? Then, he made medicines from plants. 22. Read the dialogue about Susan's problem. Your friend is Susan. You are a doctor. Use the words in the list, talk to Susan and give her some advice. Susan: Hello, doctor. I need your ****. This year I am heavier than last year. I want to lose weight. Can you **** me? Doctor: Of course, I can **** you. You can lose weight in three months if you follow my program. You will be much healthier, too. Susan:Oh, doctor, really?I don’t believe it. Doctor:First,I must learn your eating habits and daily routines. What do you like? What do you enjoy doing? What are your working and living conditions? S: OK, doctor. I'm ready to talk to you. I like fast food, but I don't like fruit. D: You should eat more fruit and less fast food. S: I really enjoy eating fast food and sweets. D: You mustn't eat them. Shall we make a diet program for you? Can you follow a diet program? S: Yes, doctor. I can follow a diet program. D: Fine. Let's plan your diet program first. Then we can make your exercise program. S: Oh, doctor! I can't do exercise. I feel tired when I do exercise.