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A study showed that 38% foreign students had many close American friends.（)
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更多“A study showed that 38% foreig…”相关的问题
Wallerstein's study showed that ______.
A．divorce left the children with many problems
B．all the problems showed up right after the divorce
C．divorce could be avoided
D．divorce made the children mature earlier
Mr. Huntington's study showed that ______.
A. the climate of the place where one lives may have an effect on his intelligence
B. all people turn out to be less intelligent in summer due to the hith temperature
C. people are less smart in summer due to the lack of factors existing in spring
D. people live in tropic are less intelligent than people live in cooler area
Another study showed that for every minute a person is in a supermarket after the first half hour, she or he spends $50. If someone stays forty minutes, the supermarket has an additional $5.00. So the store has a comfortable temperature in summer and winter, and it plays soft music. It is a pleasant place for people to stay and spend more money.
Some stores have red or pink lights over the meat so the meat looks redder. They put light green paper around lettuce (生菜) and put apples in red plastic bags.
So be careful in the supermarket. You may go home with a bag of food you were not planning to buy. The supermarket, not you, decided you should buy it.
Marketing specialists study______.
A．plants suitable for human needs
B．how to build shelves
C．method of selling more products
D．how to own supermarkets
Here is what Professor Wellman means. Before the invention of the Internet and e-mail, our social networks involved live interactions with relatives, neighbors, and colleagues at work. Some of the interaction was by phone, but it was still voice to voice, person to person, in real time.
A recent research study by the Pew Internet and American Life Project showed that for a lot of people, electronic interaction through the computer has replaced this person-to-person interaction. However, a lot of people interviewed for the Pew study say that's a good thing. Why？
In the past, many people were worried that the Internet isolated us and caused us to spend too much time in the imaginary world of the computer. But the Pew study discovered that the opposite is true. The Internet connects us with more real people than expected helpful people who can give advice on careers, medical problems, raising children, and choosing a school or college. About 60 million Americans told Pew that the Internet plays an important role in helping them make major life decisions.
Thanks to the computer, "networked individuals" are able to be alone and together with other people—at the same time .
The Pew study was conducted in______.
A．The United States
B．Canada
C．The U. S. and Canada
D．Europe
【6】with girls in the low-risk group, those in the high-risk group had【7】neural responses during both anticipation and receipt of the reward.【8】, the high-risk girls showed no【9】in an area of the brain called the dorsal anterior cingulated cortex (背侧前扣带皮质), believed to play a role in【10】past experiences to assist learning.
The high-risk girls did have greater activation of this brain area【11】receiving punishment, compared with the other girls. The researchers said that this suggests that high-risk girls have easier time【12】information about loss and punishment than information about reward and pleasure.
"Considered together with reduced activation in the striatal (纹状体的) areas commonly observed【13】reward, it seems that the reward-processing system is critically【14】in daughters who are at elevated risk for depression,【15】they have not yet experienced a depressive【16】," wrote Ian H. Gotlib, of Stanford University, and his colleagues. "【17】, longitudinal studies are needed to determine whether the anomalous activations【18】in this study during the processing of【19】and losses are associated with the【20】onset of depression," they concluded. The study was published in the April of the Archives of General Psychiatry.
(1)
A．embodied
B．included
C．concluded
D．consisted
But doctors say evidence also shows there is no reason for persons to become terrified by the disease. The AIDS virus is spread during sex with an infected partner, or by infected blood. But doctors say their studies show the disease is not spread through normal, close social activities.
A study by one research team was printed in the New England Journal of Medicine. The doctors studied one-hundred-one family members who lived with AIDS and lived in crowded conditions. The family members shared many personal goods with the patients. These included toothbrushes, drinking glasses, beds, towels and toilets.
Doctors said only one family member—a five-year-old girl—got the AIDS virus. They note, however, that the girl's mother had the disease. They believe the girl probably was born with the virus. No other family member in the study got the AIDS virus or showed any signs of the disease.
The head of the study, Gerald Friedland, said if the disease is not easily spread in crowded homes, it also will not spread easily in factories, offices, schools and other public places. (67) Doctor Friedland said the study also shows there is no reason to punish AIDS patients and to force them to live separately from other persons.
American health officials recently warned, however, that some health care workers should take special care. The report noted the AIDS virus is carried in blood and other body fluids. It said health care workers should put protective covers over their eyes and skin during medical operations, dental work, or other times when the patient may bleed.
(68)In the United States, most AIDS patients are homosexual people, people taking drugs, people who used infected needles, and persons who received infected blood. More recent studies show the AIDS virus also can be spread during heterosexual(异性的)relations. It can spread either from the man to the woman, or from the woman to the man.
Doctors say there is no reason for people to be frightened about AIDS because______.
A．it is not deadly
B．few people are infected with AIDS
C．the AIDS virus is not spread in everyday social activities
D．the AIDS virus is not spread during sex
But Darius Leszczynski, who headed the 2-year study and will present findings next week at a conference in Quebec (魁北克), said more research was needed to determine the seriousness of the changes and their impact on the brain or the body.
The study at Finland's Radiation and Nuclear Safety Authority found that exposure to radiation from mobile phones can cause increased activity in hundreds of proteins in human cells grown in a laboratory, he said.
"We know that there is some biological response. We can detect it with our very sensitive approaches, but we do not know whether it can have any physiological effects on the human brain or human body," Leszczynski said.
Nonetheless, the study, the initial findings of which were published last month in the scientific journal Differentiation, raises new questions about whether mobile phone radiation can weaken the brain's protective shield against harmful substances.
The Study focused on changes in cells that line blood vessels and on whether such changes could weaken the functioning of the blood-brain barrier, which prevents potentially harmful substances from entering the brain from the bloodstream, Leszczynski said.
The study found that a protein called hsp27 linked to the functioning of the blood-brain barrier showed increased activity due to irradiation and pointed to a possibility that such activity could make the shield more permeable(能透过的), he said.
"Increased protein activity might cause cells to shrink—not the blood vessels but the cells themselves—and then tiny gaps could appear between those cells through which some molecules could pass," he said.
Leszczynski declined to speculate on what kind of health risks that could pose, but said a French study indicated that headache, fatigue and sleep disorders could result.
"These are not life-threatening problems but can cause a lot of discomfort," he said, adding that a Swedish group had also suggested a possible link with Alzheimer's disease.
"Where the truth is, I do not know," he said.
Leszczynski said that he, his wife and children use mobile phones', and he said that he did not think his study suggested any need for new restrictions on mobile phone use.
According to Leszczynski, how does a mobile phone affect one's health？
A．Mobile phone radiation can increase protein activities and such activities can make the brain's protective shield more permeable.
B．Mobile phone radiation can shrink the blood vessels and prevent blood from flowing smoothly.
C．Mobile phone radiation will bring stress to people exposed to it.
D．Mobile phone radiation kills blood cells.
The latest finding comes from nutrition and immunology respected: Vitamin E boosts the immune system in older people. In an eight-month study of 88 seniors, the scientists found that those taking at least 200 international units of Vitamin E daily had stronger immune responses than those taking little or none. Alzheimer's disease. Researchers tracked 341 moderately senile patients. Those who popped 2,000 IU of Vitamin E took seven months longer to reach an advanced stage of the disease.
Rangit Kumar Chandra, a Vitamin E researcher at Memorial University of Newfoundland, Canada, says more studies are needed to learn who can benefit most and at what dose. Vitamin E thins the blood, so high doses can cause bleeding in people who also take blood thinning drags, even aspirin. Individuals with serious conditions should consult their doctors. But most people over 65, Chandra says, can take up to 200 IU with no side effects and great benefits.
What's the main idea of the passage？
A．People will be in perfect health if they take Vitamin E every day.
B．Study showed that people who took Vitamin E regained their Flexibility.
C．Vitamin E may help prevent Alzheimer's.
D．Vitamin E offers a range of advantage if old people take proper dose of Vitamin E every day.
Sara Connolly, a researcher at the University of East Anglia's school of economics, has been analyzing the results of a survey of over 7,000 scientists and she has just presented her findings at this year's meeting of the British Association for the Advancement of Science in Norwich. She found that the average pay gap between male and female academics working in science, engineering and technology is around ￡ 1,500 ($2,850) a year.
That is not, of course, irrefutable proof of discrimination. An alternative hypothesis is that the courses of men's and women's lives mean the gap is caused by something else; women taking "career breaks" to have children, for example, and thus rising more slowly through the hierarchy. Unfortunately for that idea, Dr. Connolly found that men are also likely to earn more within any given grade of the hierarchy. Male professors, for example, earn over ￡ 4,000 a year more than female ones.
To prove the point beyond doubt, Dr. Connolly worked out how much of the overall pay differential was explained by differences such as seniority, experience and age, and how much was unexplained, and therefore suggestive of discrimination. Explicable differences amounted to 77% of the overall pay gap between the sexes. That still left a substantial 23% gap in pay, which Dr. Connolly attributes to discrimination.
Besides pay, her study also looked at the " glass-ceiling" effect—namely that at all stages of a woman's career she is less likely than her male colleagues to be promoted. Between postdoctoral and lecturer level, men are more likely to be promoted than women are, by a factor of between 1.04 and 2.45. Such differences are bigger at higher grades, with the hardest move of all being for a woman to settle into a professorial chair.
Of course, it might be that, at each grade, men do more work than women, to make themselves more eligible for promotion. But that explanation, too, seems to be wrong. Unlike the previous studies, Dr. Connolly's compared the experience of scientists in universities with that of those in other sorts of laboratory. It turns out that female academic researchers face more barriers to promotion, and have a wider gap between their pay and that of their male counterparts, than do their sisters in industry or research institutes independent of universities. Private enterprise, in other words, delivers more equality than the supposedly egalitarian world of academia does.
The phrase "cropped up" in the first paragraph most probably means______.
A．planted
B．thrived
C．elevated
D．happened
Part A
Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)
"All too often, in the history of the United States, the school teacher has been in no position to serve as a model to the intellectual life," Hofstadter wrote. "Too often he has not only no claims to an intellectual life of his own, but not even an adequate workmanlike competence in the skills he is supposed to impart."
Harsh words, perhaps, but Hofstadter's idea makes sense: If teachers—on the front line of education—don't have an active intellectual life, they're not likely to communicate a love of learning and critical thinking to their students.
In his 1995 book, Out of Our Minds: Anti-Intellectualism and Talent Development in American Schools, Craig Howley cites several studies about the education and habits of public school teachers. According to one study, prospective teachers take fewer liberal arts courses than their counterparts in other arts and science majors—and fewer upper-division courses in any subject except pedagogy. It appears, Howley writes, that prospective teachers do not often make a special effort during their college years to pursue advanced study in fields other than pedagogy.
Frequent reading of literature in academic fields is the mark of the scholar, Howley says, so it's logical to look at teachers' reading habits. Readers tend to be more reflective and more critical than nonreaders, argues Howley, who found that studies of teachers' reading showed two patterns: One is that teachers don't read very much—on average, just 3.2 books a year. (In fact, 11 percent of those surveyed said they had not read a single book during the current year.) The second pattern is that when teachers do read, they prefer popular books rather than scholarly or professional literature. Of those who were reading about education, most were reading books intended for the general public.
It's true that U.S. teachers have traditionally been poorly paid and not well respected, which means that the best and the brightest are often not attracted to teaching. But until teachers can be role models and exhibit their own love of learning and academics, the children won't get it.
"Create a culture among the adults, a community of adults who are learners, who are excited a bout ideas in the other disciplines," says Deborah Meier, educator and author of The Power of Their Ideas. "The school must represent the culture it wants to encourage. If we want kids to feel that an intellectual life belongs to them, it must belong to the teacher, too."
According to Hofstadter, American teachers
A．serve as models to the intellectual life.
B．are not active in their intellectual life.
C．only work as adequate workman.
D．play an very important role in the society.
In the study, when male subjects witnessed people they perceived as bad guys being stroke by a mild electrical shock, their M.R.I. scans lit up in primitive brain areas associated with reward. Their brains' empathy centers remained dull. Women watching the punishment, in contrast, showed no response in centers associated with pleasure. Even though they also said they did not like the bad guys, their empathy centers still quietly gloved.
The study seems to show for the first time in physical terms what many people probably assume they already know: that women are generally more empathetic than men, and that men, and that men take great pleasure in seeing revenge exacted. Men "expressed more desire for revenge and seemed to feel satisfaction when unfair people were given what they perceived as deserved physical punishment," said Dr. Tania Singer, the lead researcher, of the Wellcome Department of Imaging Neuroscience at University College London. But far from condemning the male impulse for retribution, Dr. Singer said it had an important social function: "This type of behavior. has probably been crucial in the evolution of society as the majority of people in a group are motivated to punish those who cheat on the rest."
The study is part of a growing body of research that is attempting to better understand behavior. and emotions by observing simultaneous physiological changes in the brain, a technique now attainable through imaging. "Imaging is still in its early days but we are transitioning from a descriptive to a more mechanistic type of study," said Dr. Klaas Enno Stephan, a co-author of the paper.
Dr. Singer's team was simply trying to see if the study subjects' degree of empathy correlated with how much they liked or disliked the person being punished. They had not set out to look into ** differences. To cultivate personal likes and dislikes in their 32 volunteers, they asked them to play a complex money strategy game, where both members of a pair would profit if both behaved cooperatively. The ranks of volunteers were infiltrated by actors told to play selfishly. Volunteers came quickly to "very much like" the partners who were cooperative, while disliking those who hided rewards, Dr. Stephan said. Effectively conditioned to like and dislike their game-playing partners, the 32 subjects were placed in scanners and asked to watch the various partners receive electrical shocks. On scans, both men and women seemed to feel the pain of partners they liked. But the real surprise came during scans when the subjects viewed the partners they disliked being shocked. "When women saw the shock, they still had an empathetic response, even though it was reduced," Dr. Stephan said. "The men had none at all." Furthermore, researchers found that the brain's pleasure centers lit up in males when just punishment was meted out.
The researchers cautioned that it was not clear if men and women are born with divergent responses to revenge or if their social experiences generate the responses. Dr. Singer said larger studies were needed to see if differing responses would be seen in cases involving revenge that did not involve pain. Still, she added, "This investigation would seem to indicate there is a predominant role for men in maintaining justice and issuing punishment."
第26题：Lord Byron\'s words mean ______.
A. Women are crueler than men
B. Revenge on women is sweeter
C. Women feel sweeter with revenge than men
D. Women love to revenge
