47. In a laughter clinic, doctors______.

　　A. laugh at their patients

　　B. encourage their patients to laugh

　　C. smile when they don't feel like laughing

　　D. never stop laughing

　　48. What is the writer's attitude towards laughter?

　　A. Critical. B. Doubtful. C. Positive. D. Negative.

五、语法填空（共10小题；每小题1.5分，满分15分）

　　Up to now, nobody 49.________ (be) able to do better than Charlie Chaplin in humour. He made people laugh at a time when they felt depressed, so they could feel more content 50.________ their lives.

　　Charlie's parents were poor music hall performers. It was 51.________ (astonish) that Charlie was taught to sing as soon as he could speak and dance as soon as he could walk. 52.________(fortune), his father died, 53.________(leave) the family even worse off. Charlie could act the fool doing ordinary everyday tasks. Nobody was ever 54.________ (bore) watching him for he made everything 55.________ (entertain). He became known throughout 56.________ world. The tramp, a poor, 57.________ (home) man with a moustache, wore large trousers, worn­out shoes and a small round black hat.

　　Later, Charlie Chaplin wrote, directed and produced the films he starred 58.________. In 1972, Chaplin was given a special Oscar for his outstanding work in films.