题目内容

For UCSF to carry on stem cell research, new funds have to come from ________.

A. interested businesses and individuals
B. the United States federal government
C. a foundation set up by the Intel Company
D. executives of leading American companies

查看答案
更多问题

Passage One Questions 21 to 25 are based on the following passage.
There are good reasons to be troubled by the violence that spreads throughout the media. Movies, Television and video games are full of gunplay and bloodshed, and one might reasonably ask what’s wrong with a society that presents videos of domestic violence as entertainment.
Most researchers agree that the causes of real-world violence are complex. A 1993 study by the U.S. National Academy of Sciences listed “biological, individual, family, peer, school, and community factors” as all playing their parts.
Viewing abnormally large amounts of violent television and video games may well contribute to violent behavior. in certain individuals. The trouble comes when researchers downplay uncertainties in their studies or overstate the case for causality (因果关系). Skeptics were dismayed several years ago when a group of societies including the American Medical Association tried to end the debate by issuing a joint statement: “At this time, well over 1,000 studies... point overwhelmingly to a causal connection between media violence and aggressive behavior. in some children.”
Freedom-of-speech advocates accused the societies of catering to politicians, and even disputed the number of studies (most were review articles and essays, they said). When Jonathan Freedman, a social psychologist at the University of Toronto, reviewed the literature, he found only 200 or so studies of television-watching and aggression. And when he weeded out “the most doubtful measures of aggression”, only 28% supported a connection.
The critical point here is causality. The alarmists say they have proved that violent media cause aggression. But the assumptions behind their observations need to be examined. When labeling games as violent or non-violent, should a hero eating a ghost really be counted as a violent event? And when experimenters record the time it takes game players to read ‘aggressive’ or ‘non-aggressive’ words from a list, can we be sure what they are actually measuring? The intent of the new Harvard Center on Media and Child Health to collect and standardize studies of media violence in order to compare their methodologies, assumptions and conclusions is an important step in the right direction.
Another appropriate step would be to tone down the criticism until we know more. Several researchers write, speak and testify quite a lot on the threat posed by violence in the media. That is, of course, their privilege. But when doing so, they often come out with statements that the matter has now been settled, drawing criticism from colleagues. In response, the alarmists accuse critics and news reporters of being deceived by the entertainment industry. Such clashes help neither science nor society.
21. Why is there so much violence shown in movies, TV and video games?

A. There is a lot of violence in the real world today.
B. Something has gone wrong with today’s society.
C. Many people are fond of gunplay and bloodshed.
D. Showing violence is thought to be entertaining.

In 1915 Einstein made a trip to G ttingen to give some lectures at the invitation of the mathematical physicist David Hilbert. He was particularly eager—too eager, it would turn (62)—to explain all the intricacies of relativity to him. The visit was a triumph, and he said to a friend excitedly, “I was able to (63) Hilbert of the general theory of relativity. ”
(64) all of Einstein’s personal turmoil(焦躁)at the time, a new scientific anxiety was about to (65). He was struggling to find the right equations that would (66) his new concept of gravity, (67) that would define how objects move (68) space and how space is curved by objects. By the end of the summer, he (69) the mathematical approach he had been (70) for almost three years was flawed. And now there was a (71) pressure. Einstein discovered to his (72) that Hilbert had taken what he had learned from Einstein’s lectures and was racing to come up (73) the correct equations first.
It was an enormously complex task. Although Einstein was the better physicist, Hilbert was the better mathematician. So in October 1915 Einstein (74) himself into a month-long frantic endeavor in (75) he returned to an earlier mathematical strategy and wrestled with equations, proofs, corrections and updates that he (76) to give as lectures to Berlin’s Prussian Academy of Sciences on four (77) Thursdays.
His first lecture was delivered on Nov. 4. 1915, and it explained his new approach, (78) he admitted he did not yet have the precise mathematical formulation of it. Einstein also took time off from (79) revising his equations to engage in an awkward fandango (方丹戈双人舞)with his competitor Hilbert. Worried (80) being scooped(抢先),he sent Hilbert a copy of his Nov. 4 lecture. “I am (81) to know whether you will take kindly to this new solution, ”Einstein noted with a touch of defensiveness.
62. A) up B) over C) out D) off
63. A) convince B) counsel C) persuade D) preach
64. A)Above B)Around C)Amid D)Along
65. A) emit B) emerge C) submit D) submerge
66. A) imitate B) ignite C) describe D) ascribe
67. A) ones B) those C) all D) none
68. A) into B) beyond C) among D) through
69. A) resolved B) realized C) accepted D) assured
70. A) pursuing B) protecting C) contesting D) contending
71. A) complex B) compatible C) comparative D) competitive

根据下列选项,回答 107~108 题。
第 107 题 移位明显,不能手法复位的骨折,需行()

根据下列选项,回答 112~113 题。
第 112 题 突然发生广范围快速的龋蚀,很快发生牙髓感染,下颌乳前牙也受到龋蚀的侵及()

答案查题题库