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Passage 3 Natural MedicinesPara. 1: Since earliest days, humans have used some kinds of medicines. We know this because humans have survived. Ancient treatments for injury and disease were successful enough to keep humans from dying out completely.Para. 2: They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny instruments. Before the time of big hospitals with strange and wonderful equipment.Para. 3: Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals. Yet injuries are treated. And diseases are often cured. How? By ancient methods. By medicines that might seem mysterious, even magical. Traditional medicines are neither mysterious nor magical, however.Para. 4: Through the centuries, tribal (部落的) medicine men experimented with plants. They found many useful chemicals in the plants. And scientists believe many of these traditional medicines may provide the cure for some of today's most serious diseases.Para. 5: Experts say almost 80% of the people in the world use plants for health care. These natural medicines are used not just because people have no other form of treatment. They are used because people trust them. In developed areas, few people think about the source of the medicines they buy in a store. Yet many widely-used medicines are from ancient sources, especially plants. Some experts say more than 25% of modern medicines come, in one way or another, from nature.Para. 6: Scientists have long known that nature is really a chemical factory. All living things contain chemicals that help them survive. So scientists' interest in traditional medicine is not new. But it has become an urgent concern. This is because the earth's supply of natural medicines may be dropping rapidly.1. The passage indicates that ancient treatments for injury and disease were__________.
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4. Mr. Cousins cured his illness
3. What didn't Mr. Cousins do in his experiments with laughter?
2. Mr. Cousins attributed the bad chemical changes in his body to
Passage 2 Happy Therapy (诊疗)Para. 1: Norman Cousins was a businessman from the United States who often traveled around the world on business. He enjoyed his work and traveling.Para. 2: Then, after returning to tile United States from a busy and tiring trip to Russia, Mr. Cousins got sick. Because he had pushed his body to the limit of its strength on the trip, a chemical change began to take place inside him. The material between his bones became weak.Para. 3: In less than one week after his return, he could not stand. Every move that he made was painful. He was not able to sleep at night.Para. 4: The doctors told Mr. Cousins that they did not know how to cure his problems and he might never get over the illness. Mr. Cousins, however, refused to give up hope.Para. 5: Mr. Cousins thought that unhappy thoughts were causing bad chemical changes in his body. He did not want to take medicine to cure himself. Instead, he felt that happy thoughts or laughter might cure his illness.Para. 6: He began to experiment on himself while still in the hospital by watching funny shows on television. Mr. Cousins quickly found that ten minutes of real laughter during the day gave him two hours of pain-free sleep at night.Para. 7: Deciding that the doctors could not help him, Mr. Cousins left the hospital and checked into a hotel room where he could continue his experiments with laughter. For eight days, Mr. Cousins rested in the hotel room watching funny shows on television, reading funny books, and sleeping whenever he felt tired. Within three weeks, he felt well enough to take a vacation to Puerto Rico where he began running on the beach for exercise.Para. 8: After a few months, Mr. Cousins returned to work He had laughed himself back to health.1. Mr. Cousins got sick after returning from
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