Do you know how to use a mobile phone without being rude to the people around you? 　　Talking during a performance irritates (激怒) people. If you are expecting an emergency call, sit near the exit doors and set your phone to vibrate (振动). When your mobile phone vibrates, you can leave quietly and let the others enjoy the performance. 　　Think twice before using mobile phones in elevators, museums, churches or other indoor public places—especially enclosed spaces. Would you want to listen to someone’s conversation in these places? Worse yet, how would you feel if a mobile phone rang suddenly during a funeral! It happens more often than you think. Avoid these embarrassing situations by making sure your mobile phone is switched off. 　　When eating at a restaurant with friends, don’t place your mobile phone on the table. This conveys the message that your phone calls are more important than those around you. 　　Mobile phones have sensitive microphones that allow you to speak at the volume you would on a regular phone. This enables you to speak quietly so that others won’t hear the details of your conversations. If you are calling from a noisy area, use your hand to direct your voice into the microphone. 　　Many people believe that they can’t live without their mobile phone. Owning a mobile phone definitely makes life more convenient, but limit your conversations to urgent ones and save the personal calls until you are at home. 50. What should you do when you need to answer a phone call during a performance? 　 A. Call back after the performance. B. Answer it near the exit door. 　 C. Talk outside the exit door. D. Speak in a low voice. 51. Putting your mobile phone on a restaurant table may make your friends think_____. 　 A. you prefer to talk to your friends at the table B. you value your calls more than your friends 　 C. you are enjoying the company of your friends D. you are polite and considerate of your friends 52. When you are calling in a noisy area, you are advised to _____. 　 A. use a more sensitive microphone B. shout loudly into your microphone 　 C. go away quietly to continue the phone call D. use your hand to help speak into the phone 53. The author implies that the use of mobile phones in such places as museums should be_____. 　 A. limited B. expected C. encouraged D. recommended C When a rare disease ALD threatened to kill the four-year-old boy Lorenzo, his parents refused to give up hope. Doctors explained that there was no cure for ALD, and that he would probably die within three years. But Lorenzo’s parents set out to prove the doctors wrong. The parents devoted themselves to keeping their son alive and searching for a cure. But doctors and the families of other ALD patients often refused to take them seriously. They thought the efforts to find a cure were a waste of time, and drug companies weren’t interested in supporting research into such a rare disease. However, the parents still refused to give up and spent every available hour in medical libraries and talking to anyone who would help. Through trial and error, they finally created a cure from ingredients (调料) commonly found in the kitchen. The cure, named "Lorenzo’s Oil", saved the boy’s life. Despite the good results, scientists and doctors remained unconvinced. They said there was no real evidence that the oil worked and that the treatment was just a theory. As a result, some families with ALD children were reluctant to try it. Finally, the boy’s father organized an international study to test the oil. After ten years of trials, the answer is: the oil keeps ALD children healthy. 54. Doctors said that Lorenzo might die within three years because_____ . A. they had never treated the disease before B. Lorenzo was too young to be cured C. no cure had been found for ALD D. ALD was a rare disease 55. The families of other ALD patients thought that _____ . A. the research for the new cure would cost too much money B. the efforts of Lorenzo’s parents were a waste of time C. Lorenzo’s parents would succeed in finding a cure D. Lorenzo’s oil was a real cure for ALD 56. Scientists and doctors believed that Lorenzo’s Oil_____. A. was really effective B. was a success story C. only worked in theory D. would save the boy’s life 57. From the passage we can conclude that_____. A. doctors remain doubtful of the effectiveness of the cure B. many ALD patients still refuse to use the oil C. various cures have been found for ALD D. the oil really works as a cure for ALD D The way people hold to the belief that a fun-filled, and pain-free life equals happiness actually reduces their chances of ever attaining real happiness. If fun and pleasure are equal to happiness then pain must be equal to unhappiness. But in fact, the opposite is true: more often than not things that lead to happiness involve some pain. As a result, many people avoid the very attempts that are the source of true happiness. They fear the pain inevitably(不可避免的) brought by such things as marriage, raising children, professional achievement, religious commitment (义务), self - improvement. Ask a bachelor(单身汉) why he resists marriage even though he finds dating to be less and less satisfying. If he is honest he will tell you that he is afraid of making a commitment. For commitment is in fact quite painful. The single life is filled with fun, adventure, excitement. Marriage has such moments, but they are not its most distinguishing features. Couples with infant children are lucky to get a whole night’s sleep or a three - day vacation. I don’t know any parent who would choose the word fun to describe raising children. But couples who decide not to have children never know the joys of watching a child grow up or of playing with a grandchild. Understanding and accepting that true happiness has nothing to do with fun is one of the most liberating realizations. It liberates time: now we can devote more hours to activities that can genuinely increase our happiness. It liberates （解放）money: buying that new car or those fancy clothes that will do nothing to increase our happiness now seems pointless. And it liberates us from envy: we now understand that all those who are always having so much fun actually may not be happy at all. 58. According to the author, a bachelor resists marriage chiefly because _______ . A. he is reluctant to take on family responsibilities B. he believes that life will be more cheerful if he remains single C. he finds more fun in dating than in marriage D. he fears it will put an end to all his fun adventure and excitement 59. From the last paragraph, we learn that envy sometimes stems from ________ . A. hatred　　 B. misunderstanding　 C. prejudice　　D. ignorance 60. What is the author trying to tell us? A. Happiness often goes hand in hand with pain. B. One must know how to attain happiness. C. It is important to make commitments. D. It is pain that leads to happiness.