介绍:
（第一篇）
Professors from Yale University agreed in a panel discussion tonight that automobile was what one of them called "Public Health Enemy No. 1 in This Country". Besides polluting the air and overcrowding the cities, automobiles could cause heart disease "because we don&`&t walk anywhere any more," said Dr. H.P Richard Weinerman, professor of medicine and public health. Dr. Weinerman&`&s sharp accusation against the automobile came in a discussion of human environment on Yale Reports, a radio program broadcast by Station WTIC in Hartford, Connecticut. The program opened a three-part series on "Staying Alive". "For the first time in human history, the problem of man&`&s survival has to do with his control of man-made hazards," Dr. Weinerman said. "Before this, the problem had been the control of natural hazards."
16. What is the main idea of the passage?
17. Why could automobiles cause heart disease?
18. For the first time, what does the problem of man&`&s survival have to do with?
（第二篇）
Whether it&`&s curled up, flat on the stomach or stretched out across the bed, the way people sleep reveals their personality, a British sleep expert said. Professor Chris Idzikowski, director of the Speep Assessment and Advisory Service, has identified six common sleep positions and what they mean. Crouched in the fetal position is the most popular sleep pattern and favored by 51 percent of women, according to the results of the study he conducted for a large hotel group. Fetal sleepers tend to be shy and sensitive while people who take the soldier position, flat on their back with arms at their sides, are quiet and reserved. Speeping on one&`&s side with legs outstretched and arms down in what Idzikowski refers to as the log, indicates a social, easy-going personality. But if the arms are outstretched in a yearning position, the person tends to be more suspicious. The freefall, flat on the stomach with the hands at the sides of the head, is the most unusal position. Only 6.5 percent of people prefer it and they are usually rash and sociable. Unassuming, good listeners usually adopt the starfish position_ on the back with outstretched arms and legs. Idzikowski, who identified the positions by comparing personality traits of people, their preferred way of sleeping and the most common positions, said once a sleeping style is adopted it is rarely changed.
19. How many common sleep positions did the professor identify?
20. What is true about sleepers in the soldier position?
21. What is not revealed by the study?
（第三篇）
May and June are the months when most American colleges and universities hold their graduation ceremonies. These ceremonies are a time for family and friends to gather and celebrate a student&`&s completion of an academic degree. Most ceremonies are traditional. The students wear caps and gowns over their clothing. One by one, their names are called. They go to the front, shake hands with school officials and receive a document of some kind. But first they must sit and listen to speeches. Colleges and universities often invite famous guests or former students who have been successful. Schools often want speakers to comment on world events. This Saturday, for example, Senator Hillary Rodham Clinton will speak at the graduation ceremony at the Rensselaer Plytechnic Institute in Troy, New York. News people are often invitied to speak at graduations. So are entertainers. Actor John Lithgow, a 1967 graduate of Harvard, will speak at the university on June 9th. Then there are speakers like John Stewart. He entertains by making fun of the news. His popular program, "The Daily Show," appears on Comedy Central on cable television. Last year, Jon Stewart spoke at the Collge of WIlliam and Mary in Williamsburg, Virginia. He graduated from there in 1984. He did offer some serious advice. He said: " College is something you complete. Life is something you experience. So don&`&t worry about your grade, or the results or success. Success is defined in various ways, and you will find it... Love what you do. Get good at it. "
22. When do most American universities hold their graduation ceremonies?
23. Who are often invited to speak at the graduation ceremonies?
24. Which university did the actor John Lithgow graduate from?
25. What advice did Jon Stewart give at the ceremony of the college of William and Mary?
