单选题44. I ______ through that bitter period without your generous help.

单选题《复合题被拆开情况》 The U.S. and China don’t agree on much these days. Germany and France share a border and a currency but are frequently at odds. The U.K. and India like to march to their own drum. But there

单选题New Discoveries of Public TransportAA new study conducted for the World Bank by Murdoch Universitys Institute for Science and Technology PolicyISTPhas demonstrated that public transport is more e

单选题Parents’Homework：Find Perfect Teachers for KidsATomi Hall did what she could to lobby for the best teachers for her two children, making her case this spring in letters to the principal.Then all she c

单选题 They're young

单选题New Discoveries of Public TransportAA new study conducted for the World Bank by Murdoch Universitys Institute for Science and Technology PolicyISTPhas demonstrated that public transport is more e

单选题. Using data from a research study that took place in the U.K. which asked families to report on their diets, the team found that vegetarian males were more likely to be depressed than their carnivorous (食肉的) counterparts. The sample included nearly 10000 men who had a pregnant partner, and everyone identified their dietary preference. Only 350 were reported being vegetarian. The scientists compared how both plant- and meat-eaters fared on the Edinburgh Postnatal Depression Scale, used by U.K. doctors to determine if women are likely to develop postpartum (产后的) depression. The team found that vegetarians were more likely to have scores higher than 10, the minimum threshold of possible depression. They report their findings in the current issue of the Journal of Affective Disorders. The survey ferreted out some honesty about what exactly the participants meant by "vegetarian." Although the men who said they followed such a diet didn't eat burgers or hot dogs, they did consume nearly as much oily fish and shellfish as meat-eaters. And those who identified as vegetarian actually did indulge in red meat: 72 reported some consumption while only 16 of the vegetarians admitted to cheating. The researchers don't assert that being vegetarian causes depression. Instead, they're suggesting a link between plant-based diets and mental health. The primary theory for this link is that vegetarians receive fewer nutrients found in red meat, vitamin B12 specifically, and that could contribute to depressive symptoms. But the study authors believe this new data should spur a randomized controlled trial to further examine the relationship between meat and mood. Studies have increasingly shown that nutrition and depression are linked. As researchers noted in a paper, nutritional neuroscience has just begun looking at how nutrition impacts cognition, behavior and emotion. Many patients with mental disorders have deficiencies in certain nutrients, including omega-3 fatty acids and B vitamins. In a small study of patients, doctors found that coupling vitamin B12 supplements with antidepressants significantly decreased symptoms.1. From the data of the research study that took place in the U. K., we know ______.

单选题Questions 1 to 10 are based on the following passage.Depression is a serious condition that_____1___ around 16 million U.S.adults.The condition is more common in women, but new research suggests that

单选题. Video games have become increasingly popular in both arcades and the average American home. People of all ages and from all walks of life are enjoying hours of entertainment by feeding their time and quarters into these flashing, beeping machines. Many skeptics as well as prospective arcade owners have asked what it is that gives Pac Man, Centipede, and a multitude of other popular games their magnetic appeal to millions of players. As a video player myself, I believe there are many answers to that question but three are outstanding. Before a full-scale attack is launched against young video players for "throwing away" their quarters, one should first consider the rising costs of more traditional forms of entertainment. For instance, eighteen holes of miniature golf or ten frames of bowling will cost the player at least two dollars, and one movie costs four bucks. For just two dollars, a video player can get at least eight games, and the better he gets, the longer he can play. Compare that record with the game of miniature golf, where the better one becomes, the shorter amount of time he gets to play. Not only are the games less expensive than other forms of entertainment, but they are also more in tune with the important issues of the day. Even those people who have never been interested in science are beginning to appreciate how much science influences our lives today. Video games, which are the products of advanced technology and uncontrolled imagination, have brought today's youth closer than ever to the exciting world of science by games. In fact, there are even cartridges which teach garners how to program computers. It is exciting to be involved with the most up-to-date ideas of the day, and video games help provide people with the opportunity to be involved. Besides the fact that they help people to get involved in technology, video games also provide an out-let for the emotions and the ego. If a man gets frustrated with his boss, for example, he can go to the arcade after work to destroy enemy cruisers rather than drown his anxieties in liquor. Also, for those who feel they are not capable of excelling at anything, the games provide challenges which are easily mastered with patience and practice. It gives a person a good feeling to know that he has broken his own record or that of someone else.1. It can be inferred that Pac Man and Centipede are ______.

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单选题. Depression is one of the dark demons (恶魔) of adolescence. Up to 1 in 12 American teenagers is affected, according to the National Institute of Mental Health (NIMH), and three times as many will experience depression at some point by age 18. Studies show that at least 20% of teenagers with clinical depression will go on to develop chronic cases that will haunt them throughout adulthood. It's no wonder, then, that researchers are beginning to focus on preventing teenage depression in the first place. A new study in the current issue of the Journal of the American Medical Association (JAMA) is the largest to date showing that a relatively modest intervention goes a long way to prevent episodes of depression in high-risk teens. The study involved 316 adolescents, ages 13 to 17, in four cities. All of the teenagers had a history of depression or current symptoms that just fell short of a clinical diagnosis. The teens also had at least one parent who had been diagnosed with depression. Haft the teenagers were randomly assigned to a prevention program that consisted of eight weekly group sessions of cognitive behavioral instruction (CB) lasting 90 minutes each, plus six follow-up sessions that met once a month. The other haft of the volunteers were assigned to a control group that got "usual care," meaning they were free to seek help from whatever resources were available to them in their community—as were the teens in the experimental group. There were no differences between the groups in terms of the types of services they chose on their own. The teenagers were followed for nine months. Less than a quarter (21.4%) of those in the CB program went on to have an episode of depression, compared with about a third (32.7%) of those in the control group. The results were far more dramatic for teens whose parents were not actively suffering from depression: only 11.7% who went through the program had an episode of depression during the nine-month follow-up. The CB sessions focused on teaching the kids to think more realistically—and less catastrophically—about their problems and experiences. "We hope that the program will not only prevent depression, but al- so the impairments associated with it," says Judy Garber, professor of psychology and human development at Vanderbilt University. "We will be looking at alcohol and drug use, eating problems, anxiety and behavior problems and performance in school." The researchers will also examine what can be done for the adolescents whose parents are in the grips of depression: this subset (子集), which was 45% of the participants, did not benefit significantly from the cognitive behavioral program. "It's awfully hard to change your thinking habits if a parent is depressed and everything is so messed up around you," observes Clarke. Future studies, says Garber, will look at whether treating the parent for depression makes a difference.1. According to the second paragraph, the new study shows that "relatively modest intervention" ______.

单选题. Questions 9 to 12 are based on the passage you have just heard.1.

单选题《复合题被拆开情况》 Organic agriculture is a relatively untapped resource for feeding the Earth’s population, especially in the face of climate change and other global challenges. That’s the conclusion I reach

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单选题. Now listen to the following recording and answer questions 23 to 25.8.

单选题. Questions 1 to 4 are bused on the conversation you have just heard.1.

单选题. Questions 9 to 11 are based on the passage yon have just heard.1.

单选题. Questions 20 to 22 are based on the recording you have just heard.5.