题目内容
听力原文：It's going to rain. Please take an umbrella with you.
查看答案
搜索结果不匹配？点我反馈
更多问题
No longer. The Internet—and pressure from funding agencies, who are questioning why commercial publishers are making money from government-funded research by restricting access to it—is making access to scientific results a reality. The Organization for Economic Co-operation and Development (OECD) has just issued a report describing the far-reaching consequences of this. The report, by John Houghton of Victoria University in Australia and Graham Vickery of the OECD, makes heavy reading for publishers who have, so far, made handsome profits. But it goes further than that. It signals a change in what has, until now, been a key element of scientific endeavor.
The value of knowledge and the return on the public investment in research depends, in part, upon wide distribution and ready access. It is big business. In America, the core scientific publishing market is estimated at between $7 billion and $11 billion. The International Association of Scientific, Technical and Medical Publishers says that there are more than 2 000 publishers worldwide specializing in these subjects. They publish more than 1.2 million articles each year in some 16,000 journals.
This is now changing. According to the OECD report, some 75% of scholarly journals are now online. Entirely new business models are emerging; three main ones were identified by the report's authors. There is the so-called big deal, where institutional subscribers pay for access to a collection of online journal titles through site-licensing agreements. There is open-access publishing, typically supported by asking the author (or his employer) to pay for the paper to be published: Finally, there are open-access archives, where organizations such as universities or international laboratories support institutional repositories. Other models exist that are hybrids of these three, such as delayed open-access, where journals allow only subscribers to read a paper for the first six months, before making it freely available to everyone who wishes to see it. All this could change the traditional form. of the peer-review process, at least for the publication of papers.
In the first paragraph, the author discusses
Part A
Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)
While still catching up to men in some spheres of modern life, women appear to be way ahead in at least one undesirable category. "Women are particularly susceptible to developing depression and anxiety disorders in response to stress compared to men," according to Dr. Yehuda, chief psychiatrist at New York's Veteran's Administration Hospital.
Studies of both animals and humans have shown that sex hormones somehow affect the stress response, causing females under stress to produce more of the trigger chemicals than do males under the same conditions. In several of the studies, when stressed-out female rats had their ovaries (the female reproductive organs) removed, their chemical responses became equal to those of the males.
Adding to a woman's increased dose of stress chemicals, are her increased "opportunities" for stress. "It's not necessarily that women don't cope as well. It's just that they have so much more to cope with," says Dr. Yehuda. "Their capacity for tolerating stress may even be greater than men's," she observes," it's just that they're dealing with so many more things that they become worn out from it more visibly and sooner."
Dr. Yehuda notes another difference between the sexes. "I think that the kinds of things that women are exposed to tend to be in more of a chronic or repeated nature. Men go to war and are exposed to combat stress. Men are exposed lo more acts of random physical violence. The kinds of interpersonal violence that women are exposed to tend to be in domestic situations, by, unfortunately, parents or other family members, and they tend not to be one-shot deals. The wear-and-tear that comes from these longer relationships can be quite devastating."
Adeline Alvarez married at 18 and gave birth to a son, but was determined to finish college. "I struggled a lot to get the college degree. I was living in so much frustration that that was my escape, to go to school, and get ahead and do better." Later, her marriage ended and she became a single mother. "It's the hardest thing to take care of a teenager, have a job, pay the rent, pay the car payment, and pay the debt. I lived from paycheck to paycheck."
Not everyone experiences the kinds of severe chronic stresses Alvarez describes. But most women today are coping with a lot of obligations, with few breaks, and feeling the strain. Alvarez's experience demonstrates the importance of finding ways to diffuse stress before it threatens your health and your ability to function.
Which of the following is true according to the first two paragraphs？
Which of the following best summarizes the text？
The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name. But Gregory Cochran is 【B1】 to say it anyway. He is that 【B2】 bird, a scientist who works independently 【B3】 any institution. He helped popularize the idea that some diseases not 【B4】 thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested.
【B5】 he, however, might tremble at the 【B6】 of what he is about to do. Together with another two scientists, he is publishing a paper which not only 【B7】 that one group of humanity is more intelligent than the others, but explains the process that has brought this about. The group in 【B8】 are a particular people originated from central Europe. The process is natural selection.
This group generally do well in IQ test, 【B9】 12-15 points above the 【B10】 value of 100, and have contributed 【B11】 to the intellectual and cultural life of the West, as the 【B12】 of their elites, including several world-renowned scientists, 【B13】. They also suffer more often than most people from a number of nasty genetic diseases, such as breast cancer. These facts, 【B14】, have previously been thought unrelated. The former has been 【B15】 to social effects, such as a strong tradition of 【B16】 education. The latter was seen as a (an) 【B17】 of genetic isolation. Dr. Cochran suggests that the intelligence and diseases are intimately 【B18】. His argument is that the unusual history of these people has 【B19】 them to unique evolutionary pressures that have resulted in this 【B20】 state of affairs.
【B1】
微信支付 
支付宝支付