单选题Passage Three Today, more and more people are using credit cards instead of money to buy the things they need. Almost anyone who has a steady income and a continuous work record can apply for a credit card. If you have a credit card, you can buy a car, eat a dinner, take a trip, and even get a haircut by charging the cost to your account. In this way you can pay for purchases a month or two later, without any extra charge. Or you may choose to spread out your payments over several months and pay only part of the total amount each month. If you do this, the credit card company or the bank who sponsors the credit card will add a small service charge to your total bill. This is very convenient for the customer. With the credit card in your wallet or purse, you don't have to carry much cash. This saves your trips to the bank to cash checks or withdraw cash. Also if you carry credit cards instead of a lot of cash, you don't have to be concerned about losing your money through carelessness or theft. The card user only has to worry about paying the final bill. This of course can be a problem if you charge more than you can pay for. Credit cards are big business. Americans spend $16 billion a year on cards and there are already 590 million of them in circulation.. Many banks sponsor their own credit card companies and issue cards free to their customers. Other credit card companies charge their member annual dues. The stores that accept credit cards must pay a small fee to the credit card company-a percentage of the purchase price of the merchandise or service. In turn, the credit card company promptly pays the store for the merchandise or service. Credit card companies make a profit from the fees they charge the store and also from the fees collected from customers who pay for their charges in monthly installments. However, credit card companies sometimes have problems collecting overdue payments from unreliable customers. Also the use of stolen, lost, or counterfeit(伪造的) credit cards by criminals has become a big headache for the credit card company that is responsible for the goods and services illegally charged to its customers' account.

单选题Rivera's investigation and expose on the conditions at Willowbrook State School led to ______.

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单选题The word "colonies" ( Line 2, Para. 4) refers to ___________.

单选题It is significant that nowadays ______ considered to be an important part of a healthy diet.

单选题{{B}}Passage One Questions 26 to 28 are based on the passage you have just heard.{{/B}}

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单选题Questions 3 and 4 will be based on the following news item.

单选题Faced with the water shortage, one way is to reduce the consumption of water and the other is to ______.

单选题Bachelor's degree graduates get an average of four or five job offers with salaries __________ from the high teens to the low 20s and plenty of chances for rapid advancement.

单选题As used in the second paragraph, the word "pollinating" is most similar in meaning to ______.

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单选题Picking up books that vaguely interest you can be dangerous because ______.

单选题A new study suggests that the more teenagers watch television, the more likely they are to develop depression as young adults. But the extent to which TV may or may not be to blame is a question that the study leaves unanswered. The researchers used a national long-term survey of adolescent health to investigate the relationship between media use and depression. They based their findings on more than 4,000 adolescents who were not depressed when the survey began in 1995. As part of the survey, the young people were asked how many hours of television or Videos they watched daily. They were also asked how often they played computer games and listened to the radio. Media use totaled an average of 5 and one-half hours a day. More than 2 hours of that was spent watching TV. 7 years later, in 2002, more than 7 percent of the young people had signs of depression. The average age at that time was 21. Brian Primack at the University of Pittsburgh medical school was the lead author of the new study. He says every extra hour of television meant an 8 percent increase in the chances of developing signs of depression. The researchers say they did not find any such relationship with the use of other media such as movies, Video games or radio. But the study did find that young men were more likely than young women to develop depression given the same amount of media use. Doctor Primack says the study did not explore why watching TV causes depression. But one possibility, he says, is that it may take time away from activities that could help prevent depression, like sports and socializing. It might also interfere with sleep, he says, and that could have an influence. The study was just published in the Archives of General Psychiatry. In December, the journal Social Indicators Research published a study of activities that help lead to happy lives. Sociologists from the University of Maryland found that people who describe themselves as happy spend less time watching television than unhappy people. The study found that happy people are more likely to be socially active, to read, attend religious services and to vote.

单选题Passage TwoQuestions 29 to 31 are based on the passage you have just heard.

单选题The general director of the project ordered that the work ________at once.