单选题Passage Two According to a study, intellectual activities make people eat more than when just resting. This has shed new light on brain food. This finding might also help explain the obesity epidemic of a society in which people often sit. Researchers split 14 university student volunteers into three groups for a 45-minute session of either relaxing in a sitting position, reading and summarizing a text, or completing a series of memory, attention, and alert tests on the computer. After the sessions, the participants were invited to eat as much as they pleased. Though the study involved a very small number of participants, the results were stark. The students who had done the computer tests downed 253 more calories or 29.4 percent more than the couch potatoes. Those who had summarized a text consumed 203 more calories than the resting group. Blood samples taken before, during, and after revealed that intellectual work causes much bigger fluctuations in glucose(葡萄糖) levels than rest periods, perhaps owing to the stress of thinking. The researchers figure the body reacts to these fluctuations by demanding food to restore glucose--the brain's fuel. Glucose is converted by the body from carbohydrates (碳水化合物) and is supplied to the brain via the bloodstream. The brain cannot make glucose and so needs a constant supply. Brain cells need twice as much energy as other cells in the body. Without exercise to balance the added intake, however, such "brain food" is probably not smart. Various studies in animals have shown that consuming fewer calories overall leads to sharper brains and longer life, and most researchers agree that the findings apply, in general, to humans. And, of course, eating more can make you fat. "Caloric overcompensation following intellectual work, combined with the fact that we are less physically active when doing intellectual tasks, could contribute to the obesity epidemic currently observed in industrialized countries," said lead researcher Jean-Philippe Chaput at Laval University in Quebec City, Canada. "This is a factor that should not be ignored, considering that more and more people hold jobs of an intellectual nature," the researcher concluded.

单选题The young man told me a convincing story, but it seemed that he concealed his true motives.

单选题 The terrorist attacks in London Thursday served as a stunning reminder that in today's world, you never know what you might see when you pick up the newspaper or turn on the TV Disturbing images of terror can trigger an instinctive response no matter how close or far away from home the vent happened. Throughout history, every military conflict has involved psychological warfare in one way or another as the enemy sought to break the morals of their opponent. But thanks to advances in technology, the popularity of the Intemet, and proliferation of news coverage, the rules of engagement in this type of mental battle have changed. Whether it's a massive attack or a single horrific act, the effects of psychological warfare aren't limited to the physical damage inflicted. Instead, the goal of these attacks is to instill a sense of fear that is much greater than the actual threat itself. Therefore, the impact of psychological terror depends largely on how the acts are publicized and interpreted. But that also means there are ways to defend yourself and your loved ones by putting these fears into perspective and protecting your children from horrific images. What Is Psychological Terror? "The use of terrorism as a tactic is based upon inducing a climate of fear that is disproportionate with the actual threat," says Middle Eastern historian Richard Bulliet of Columbia University. "Every time you have an act of violence, publicizing that violent becomes an important part of the act itself." "There are various ways to have your impact. You can have your impact by the magnitude of what you do, by the symbolic character of target, or the horrific quality of what you do to a single person," Bulliet tells WebMD. "The point is that it isn't what you do, but it's how it's covered that determines the effect." For example, Bulliet says the Iranian hostage crisis, which began in 1979 and lasted for 444 days, was actually one of the most harmless things that happened in the Middle East in the last 25 years. All of the U.S. hostages were eventually released unharmed, but the event remains a psychological scar for many Americans who watched helplessly as each evening's newscast counted the days the hostages were being held captive. Bulliet says terrorists frequently exploit images of a group of masked individuals exerting total power over their captives to send the message that the act is a collective demonstration of the group's power rather than an individual criminal act. "You don't have the notion that a certain person has taken a hostage. It's an image of group power, and the force becomes generalized rather than personalized," says Bulliet. "The randomness and the ubiquity (无处不在) of the threat give the impression of vastly greater capacities." Psychiatrist Ansar Haroun, who served in the U.S. Army Reserves in the first Gulf War and more recently in Afghanistan, says that terrorist groups often resort to psychological warfare because it's the only tactic they have available to them. "They don't have M-16s, and we have M-16s. They don't have the mighty military power that we have, and they only have access to things like kidnapping," says Haroun, who is also a clinical professor of psychiatry at the University of California, San Diego. "In psychological warfare, even one beheading (斩首) can have the psychological impact that might be associated with killing 1,000 of the enemy," Haroun tells WebMD. "You haven't really harmed the enemy very much by killing one person on the other side. But in terms of inspiring fear, anxiety, terror, and making us all feel bad, you've achieved a lot of demoralization."

单选题College students in China are ______ to grammatical errors when they use English. A. prone B. conducive C. rigorous D. casual

单选题 At least since the Industrial Revolution, gender roles have been in a state of transition. As a result, cultural scripts about marriage have undergone change. One of the more obvious changes has occurred in the roles that women ______. Women have moved into the world of work and have become adept at meeting expectations in that arena, while maintaining their family roles of nurturing and creating a (n) {{U}} {{U}} 1 {{/U}} {{/U}}that is a haven for all family members. {{U}} {{U}} 2 {{/U}} {{/U}}many women experience strain from trying to "do it all," they often enjoy the increased rewards that can result from playing multiple roles. As women's roles have changed, changing expectations about men's roles have become more {{U}} {{U}} 3 {{/U}} {{/U}}Many men are relinquishing their major responsibility {{U}} {{U}} 4 {{/U}} {{/U}}the family provider. Probably the most significant change in men's roles, however, is in the emotional {{U}} {{U}} 5 {{/U}} {{/U}}of family life. Men are increasingly expected to meet the emotional needs of their families, especially their wives. In fact, expectations about the emotional domain of marriage have become more significant for marriage in general. Research on {{U}} {{U}} 6 {{/U}} {{/U}}marriage has changed over recent decades points to the increasing importance of the emotional side of the relationships and the importance of sharing in the "emotion work" {{U}} {{U}} 7 {{/U}} {{/U}}to nourish marriages and other family relationships. Men and women want to experience marriages that are interdependent, {{U}} {{U}} 8 {{/U}} {{/U}}both partners nurture each other, attend and respond to each other, and encourage and promote each other. We are thus seeing marriages in which men's and women's roles are becoming increasingly more {{U}} {{U}} 9 {{/U}} {{/U}}

单选题Students of English are advised to try to ______ the meaning of a new word from the context.

单选题An overseas market with a great growth potential is not easy to______. A. break down B. break up C. break through D. break into

单选题The age of other trees is variously estimated as ______ from two hundred to eight hundred years. A. changing B. differing C. varying D. ranging

单选题He was known to {{U}}thrash{{/U}} his wife occasionally when he was drunk. A. strike with the fist B. beat with a whip C. hit with a hammer D. kick with the feet

单选题With the popular use of the Internet, few people keep in touch with others {{U}}via{{/U}} hand-written letters. A. in place of B. by means of C. at the cost of D. on account of

单选题If you don't know where you're going in life, you are ______ to wind up somewhere else. A. possible B. inevitable C. optional D. liable

单选题The sale of alcoholic beverages is ______ to those above 21 in some regions. A. confined B. inhibited C. obliged D. restricted

单选题The terminally ill patient lying in the______care unit was kept alive on life support. A. apprehensive B. intensive C. extensive D. comprehensive

单选题With a wide variety of fresh fruit______available, canned fruit is no longer so popular as before. A. willingly B. appropriately C. confidently D. readily

单选题Dozens of people were trapped for hours in the ______ of the train, but all have been taken to safety. A. wreckage B. bandage C. cottage D. hostage

单选题The trade fair is designed to {{U}}facilitate{{/U}} further cooperation between Chinese auto industries and overseas auto industries. A. promote B. protect C. preserve D. prolong

单选题The desire to speak good English has driven these children to make a remarkable two-hour ______ to school every day. A. visit B. tour C. journey D. outing

单选题Smokers may resume smoking to control weight since pounds typically ______ when smoking is discontinued. A. grow up B. cover up C. creep up D. look up

单选题Directions: There are 10 questions in this part of the test. Read the passage through. Then, go back and choose one suitable word or phrase marked A, B, C, or D for each blank in the passage. Mark the corresponding letter of the word or phrase you have chosen with a single bar across the square brackets on your machine-scored Answer Sheet. As a society, we're living longer and better than at any time in history. In part, this is due to medical advances. Death rates are down, life {{U}} {{U}} 1 {{/U}} {{/U}}is higher than ever, and we're making progress {{U}} {{U}} 2 {{/U}} {{/U}}the most serious diseases we face. As we consider the direction health care will {{U}} {{U}} 3 {{/U}} {{/U}}in the future, one thing is certain: new, innovative medicines will assume an increasingly {{U}} {{U}} 4 {{/U}} {{/U}}role in the way we improve the quality of care for future generations. One {{U}} {{U}} 5 {{/U}} {{/U}}role of new medicines will be the prevention, treatment, and management of many diseases suffered by the aging Baby Boomer generation. In the year 2000, there were {{U}} {{U}} 6 {{/U}} {{/U}}35.6 million Americans aged 65 and older. By 2030, this number is {{U}} {{U}} 7 {{/U}} {{/U}}to double to an estimated 71.5 million. Diseases like diabetes represent a growing threat, {{U}} {{U}} 8 {{/U}} {{/U}}to patients but to our ability to keep health care affordable. We have to do better in our lifestyles and in our health care system to {{U}} {{U}} 9 {{/U}} {{/U}}an enormous disease burden and economic burden on the Boomers themselves, their families, employers, and federal and state governments. New drugs are a vital part of the solution to this rapidly {{U}} {{U}} 10 {{/U}} {{/U}}issue.

单选题In the deserted factory several huge machines were left to rust and {{U}}decay{{/U}}. A. inaugurate B. disintegrate C. accelerate D. disseminate