【正文】 arskadon of Brown University. She says people need to carve out sufficient time to sleep, even if it means giving up other things. Sleep routines l/ire going to bed and getting up at the same time every day are important. Prebedtime activities also make a difference. As with Eisner, who used to suffer from sleeplessness, a few life style changes—avoiding stimulants and late meals, exercising hours before bedtime, relaxing with a hot bath—yield better sleep.41. What is TRUE of human sleep? A. On average, people in the U. S. today sleep less per night than they used to. B. For most people, less than six hoers of sleep on a typical work night is enough, C. Most people need less sleep when they grow older. D. Most people need seven and a half hems of sleep every night42. For our bodies to function properly, we should _______. A. adjust our activities to the new inventions B. be able to predict the rhythms of our biological clocks C. sleep for at least eight hours per night D. believe that we need less sleep as we age43. According to the author, many sleeping disorders are caused by _______. A. improper sleep patterns B. chronic fatigue syndrome C. other diseases D. prebedtime exercises 44. Which of the following measures can help you sleep better? A. Having late meals.B. Traveling between time zones C. Staying up late. D. Taking a hot bath.45. means that ~ A. people should sacrifice other things to getting enough sleep if necessaryB. people should give up going to bed and getting up at the same time every day. C. people should go to a doctor and have their problems diagnosed D. people should exercise immediately before going to bed every night Passage ThreeThe media can impact current events. As a graduate student at Berkeley in the 1960s, I remember experiencing the events related to the People39。s lives every day. People gather more and more of their impressions from representations. Television and telephone munications are linking people to a global village, or what one writer calls the electronic city. Consider the information that television brings into your home every day. Consider also the contact you have with others simply by using telephone. These media extend your consciousness and your contact. For example, the video coverage of the1989 San Francisco earthquake focused on live action such as the fires or the rescue efforts. This gave the viewer the impression of total disaster. Television coverage of the Iraqi War also developed an immediacy. CNN reported events as they happened. This coverage was distributed worldwide. Although most people were far away from these events, they developed some perception of these realities.In 1992, many people watched in horror as riots broke out on a sad Wednesday evening in Los Angeles, seemingly fed by video coverage from helicopters. This event was triggered by the verdict (裁定) in the Rodney King beating. We are now in an age where the public can have access to information that enables it to make its own judgments, and most people, who had seen the video of this beating, could not understand how the jury (陪審團) was able to acquit (宣布無罪) the policemen involved. Media coverage of events as they occur also provides powerful feedback that influences events. This can have harmful results, as it seemed on that Wednesday night in Los Angeles. By Friday night the public got to see Rodney King on television pleading, By Saturday, television seemed to provide positive feedback as the Los Angeles riot turned out into a rally for peace. The television showed thousands of people marching with banners and cleaning tools. Because of that, many more people turned out to join the peaceful event they saw unfolding (展開) on television. The real healing, of course, will take much longer, but electronic media will continue to be a part of that process.46. The best title for the passage is _________. A. The1989 San Francisco Earthquake and the i992 Los Angeles RiotsB. How Media Cover EventsC. The 1992 Los Angeles Riots D. The Impact of Media on Current Events47. All the following statements are true EXCEPT that _________.A. all the events occurring on the university campus at Berkeley were given national mediacoverageB. video coverage of the 1989 San Francisco earthquake gave the viewers the impression of totals contact with the worldD. those living far away from a certain event can also have some perception of realities by watching television48. The term electronic city in Paragraph 2 refers toA. BerkeleyC. Los AngelesB. EarthD. San Francisco49. The 1992 Los Angeles riots broke out becauseA. video coverage from helicopters had made people angryB. video coverage had provided powerful feedbackC. the jury acquitted the policemen who had beaten Rodney KingD. people can make their own judgements50. It can be inferred from the passage thatA. the 1992 Los Angeles riots lasted a whole weekB. Rodney King seemed very angry when he appeared on television on FridayC. media coverage of events as they occur can have either good or bad resultsD. most people who had seen the video of the Rodney King beating agree with the verdict of thejuryPassage Four Although the threat of global warming has been known to the world for decades and all countries and leaders agree that we need to deal with the problem, we also know that the effects of measures, especially harsh measures taken in some countries, would be nullified (抵消) if other countries do not control their emissions. Whereas the UN team on climate change has found that the emissions of carbon dioxide would have to be cut globally by 60% to stabilize the content of CO,