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Results of a recent study appear to explain the long-standing question of why many women d

evelop lung cancer, ______ they themselves are non-smokers.

A．if

B．unless

C．but

D．although

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更多“Results of a recent study appe…”相关的问题

第1题

It can be inferred from the passage that the author would consider which of the following

to be an indication of a fundamental alteration in the conditions of women's work？

A．Statistics showing that the majority ok women now occupy white-collar positions.

B．Interviews with married men indicating that they are now doing some household tasks.

C．Surveys of the labor market documenting the recent creation of a new class of jobs in electronics in which women workers outnumber men four to one.

D．Census results showing that working women's wages and salaries are, on the average, as high as those of working men.

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第2题

Man cannot go on increasing his number at the present rate. In the【56】30 years man will fa

ce a period of crisis.【57】experts believe that there will be a widespread food【58】. Other experts think this is【59】pessimistic (悲观的), and that man can prevent things from【60】.

【61】thing that man can do is to limit the【62】of babies born. The need【63】this is obvious, but it is not【64】to achieve. People have to be【65】to limit their families. In the countries of the population【66】, many people like big families. The parents think that this【67】a bigger income for the family and ensures there will be someone in the family who will look【68】them in old age.

Several governments have【69】birth control policies in recent years.【70】them are Japan, China, India and Egypt. In some【71】the results have not been successful. Japan has been an【72】. The Japanese adopted a birth control policy in 1948. People were【73】to limit their families. The birth【74】fell from 34.3 per thousand per year to about 17.0 per year【75】present.

(46)

A．second

B．recent

C．next

D．late

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第3题

Human beings need to drink for their survival. Water ranks【61】on the list of all-time safe

fluids. But not all water is as safe as once【62】. Recent tests of water fountains in several U. S. cities show that many fountains give water containing large【63】of lead (铅) , a poisonous metal. A recent study of 900 water fountains in Los Angeles【64】that half of the fountains【65】contained higher amounts of lead than the【66】the experts consider【67】. In other cities【68】results of tests were announced; too much lead in many, though【69】, drinking fountains. Water doesn't normally contain any lead, but when it passes through pipes, it can【70】. People who drink the water【71】the lead. An adult' s body passes most of the lead【72】the body, but children' s【73】retains more than half the lead【74】. This makes children more likely to be affected. Lead can damage the kidneys, cause【75】and impair learning and memory.【76】four million children in U. S. A. already have high levels of lead in their bodies. Most of this lead comes from【77】polluted with the metal. They can【78】it up from eating dirt or paint chips containing lead. In【79】to limit the lead in water fountains, officials recently suggested that fountains【80】to have too much lead be replaced or repaired. And that certainly requires a lot of money.

(61)

A．high

B．highly

C．higher

D．height

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第4题

In Asia the prequake behavior. of animals【C1】______successfully to warn people that earthq

uakes【C2】______. Recently, a group of American【C3】______and geophysicists visited India and listened【C4】______great interest【C5】______the scientists there【C6】______explained how they have been able to predict many earthquakes in the past three years. The Indian scientists use【C7】______, but, they also【C8】______strange signals such as various ground noises, the fluctuation of well-water levels, and the strange behavior. of animals. The results are quite【C9】______. Indian seismologists(地震学家), for example,【C10】______predicted two magnitude 6. 9 quakes. The seismologists【C11】______that their predictions have been【C12】______precise that they were able to evacuate(疏散)many of their people【C13】______an earthquake occurred, thus【C14】______thousands of lives. On the other hand, the Indian experts also admit that there have been some false alarms. American scientists【C15】______stories of【C16】______prequake animal behavior. before, but they【C17】______them too seriously until their recent visit to Asia. "Maybe theres【C18】______to it," said Jack Everndon, a California scientist. "We need some kind of short-term warning. We need something. " He didnt mention the kind of research he may be considering. "Some of us are thinking its【C19】______enough to give it a serious look," he commented, "two years ago we【C20】______that. "

【C1】

A．have used

B．have been used

C．has been used

D．will be used

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第5题

Part ADirections: Read the following four texts. Answer the questions below each text by c

Part A

Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)

For years Internet merchants have poured millions of dollars into new technologies to make their sites easier to use. So why aren't online customers happier？

Customer satisfaction levels have remained almost flat through the last several years. The problem, according to Larry Freed, chief executive of a consulting and research firm called ForeSee Results, is not so much that consumers have ignored the many improvements made in recent years. Rather, he said, they still expect more from Internet shopping than it has delivered.

"If we walk into a local store, we don't expect that experience to be better than it was a couple years ago", Mr. Freed said. "But we expect sites to be better. The bar goes up every year". In ForeSee's latest survey, released last month, just five e-commerce sites registered scores higher than 80 out of 100, and no site scored higher than 85. It was much the same story a year ago, when just five scored higher than 80, with no site surpassing 85. "Scores have inched up over time for the best e-commerce companies, but the overall numbers haven't moved drastically", Mr. Freed said. "At the same time though, if you don't do anything you see your scores drop steadily".

That dynamic has been a challenge for online merchants and investors, who a decade ago envisioned Internet stores as relatively inexpensive (and therefore extremely profitable) operations. Now some observers predict a future where online retailers will essentially adopt something like the QVC model, with sales staff pitching the site's merchandise with polished video presentations, produced in a high-tech television studio.

QVC.com is evolving in that direction. The Web site, which sold more than $1 billion in merchandise' in 2006, has for the last five years let visitors watch a live feed of the network's broadcast. But in recent months, QVC.com has also given visitors the chance to watch archives of entire shows, and in the coming months visitors will be able to find more video segments from recent shows, featuring individual products that remain in stock. Bob Myers, senior vice president of QVC.com, said the Web site's video salesmanship is especially effective when combined with detailed product information, customer reviews and multiple photographs.

About eight months ago, for instance, a customer said that she could not determine the size of a handbag from the photographs on the site because she could not tell the height of the model who was holding it. Within two weeks the site tested and introduced a new system, showing the bags with women of three different heights. The results were immediate: women who saw the new photographs bought the bags at least 10 percent more frequently than those who had not.

Still, Mr. Myers said, video is a critically important element to sales. "E-commerce started with television commerce", he said. "The sites who engage and entertain customers will be winning here in the near future". Such a prospect is not necessarily daunting to other e-commerce executives. Gordon Magee, head of Internet marketing for Drs. Foster & Smith, based in a Rhinelander, Wis. said a transition to video "will be seamless for us". The company, Mr. Magee said, has in recent weeks discussed putting some of its product on video "so customers could see a 360-degree view they don't have to manipulate themselves.

Larry Freed attributed low customer satisfaction to the fact that

A．consumers often failed to see the efforts made by Internet shops.

B．customers' expectations exceed what the Internet shops are offering.

C．consumer cognitive levels do not rise as easily as sellers believe.

D．customers expect Internet merchants to invest even more heavily.

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第6题

College students are more stressed out than ever before—at least according to the latest f

indings of a large, national survey that has been conducted annually for the last 25 years. The survey includes more than 200,000 students【C1】______nearly 300 colleges and asks them to【C2】______how their own mental health【C3】______their classmates —for example, is it "above average" or in the "highest 10%"？ This【C4】______unusual methodology typically results in the statistical Lake Woebegon effect in which most people【C5】______to overestimate themselves in relation to others (it refers to the fictional Lake Woebegon, where "all the women are strong, all the men are good-looking and all the children are above average").【C6】______the most recent results indicate that fewer and fewer freshmen feel like they are in top form. in terms of【C7】______stress. So whats going on？ Obviously, the economy and high unemployment might【C8】______the increase in stress. A much more precise large study recently found that empathy【C9】______college students had declined 40% since 2000—and since caring relationships are【C10】______to mental (and physical) health, a decline in empathy could also produce a decline in mental health and coping. My final point brings us back to my earlier post on a Stanford study that looked at the psychological【C11】______of comparing ourselves to others. It found that the way people are incline to【C12】______their negative emotions while broadcasting their happy ones makes the rest of us feel somehow "less than"—【C13】______all our friends and neighbors have better lives than we【C14】______ This【C15】______, too, might tie into why the new survey, "The American Freshman: National Norms, Fall 2011," found that students are feeling less【C16】______about their level of emotional and mental stability. If all the students around you are desperately trying to【C17】______a happy face—and you【C18】______that face as a true reflection of their【C19】______selves, even as you work to hide your own【C20】______—well, its not surprising that so many students might be getting a bit strained.

【C1】

A．possessing

B．attending

C．participating

D．joining

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第7题

Conventional wisdom about conflict seems pretty much cut and dried. Too little conflict br

eeds apathy (冷漠) and stagnation (呆滞). Too much conflict leads to divisiveness (分裂) and hostility. Moderate levels of conflict, however, can spark creativity and motivate people in a healthy and competitive way.

Recent research by Professor Charles R. Schwenk, however, suggests that the optimal level of conflict may be more complex to determine than these simple generalizations. He studied perceptions of conflict among a sample of executives. Some of the executives worked for profit seeking organizations and others for not-for-profit organizations.

Somewhat surprisingly, Schwenk found that opinions about conflict varied systematically as a function of the type of organization. Specially, managers in not-for-profit organizations strongly believed that conflict was beneficial to their organizations and that it promoted higher quality decision making than might be achieved in the absence of conflict.

Managers of for-profit organizations saw a different picture. They believed that conflict generally was damaging and usually led to poor-quality decision making in their organizations. Schwenk interpreted these results in terms of the criteria for effective decision making suggested by the executives. In the profit-seeking organizations, decision-making effectiveness was most of ten assessed in financial terms. The executives believed that consensus rather than conflict enhanced financial indicators.

In the not-for-profit organizations, decision-making effectiveness was defined from the perspective of satisfying constituents. Given the complexities and ambiguities associated with satisfying many diverse constituents executives perceived that conflict led to more considered and acceptable decisions.

In the eyes of the author, conventional opinion on conflict is ________.

A．wrong

B．oversimplified

C．misleading

D．unclear

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第8题

Questions are based on the following passage．In fact， even without humans， the Earth"s cl

Questions are based on the following passage．

In fact， even without humans， the Earth"s climate changes．Some climate change is（36）But，as greenhouse gases are added to the atmosphere， human influence "emerges" from natural variability．Droughts， one of the most Intensely studied climate events， are a perfect example of an（37）with both natural and human influences．Separating the（38）strengths of the influences is a challengefor scientists．However， with the large social and economic costs of droughts， it is a challenge thescientists must（39）.

In a very recent study published in the Journal of Climate， authors Richard Seager and MartinHoerling cleverly used climate models forced by sea surface temperatures to（40）how much of thepast century"s North American droughts have been caused by ocean temperatures， natural variability and human influences．

Droughts can be caused by a （n）（41）of separate or interactional phenomena．At its root，drought results from the low（42）of water falling and sometimes higher temperatures （which increaseevaporation rates）．The beginning of drought can often be linked to variations in ocean temperatures．

It is also found that the oceans can affect the atmosphere to create conditions that are（43）responsible for drought．What"s more， temperature increases（44）withhuman-driven global warmingalso play a role．This（45）agrees with other researchers who have shown that， while human-emittedgreenhouse gas warming may not cause a particular drought， it can make drought come on earlier，faster， and harder than it otherwise would．

A．associated

B．attached

C．conclusion

D．conduct

E．distinguish

F．effect

G．natural

H．Partly

I．Quality

J．Quantity

K．Relative

L．Ridiculous

M．Simply

N．Undertake

O．variety

第（36）题应填__________ 查看材料

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第9题

Among the most popular books being written today are those which are usually classified as

science fiction (科幻小说). Hundreds of titles are published every year and are read by all kinds of people. Furthermore, some of the most successful films of recent years have been based on science fiction stories.

It is often thought that science fiction is a fairly new development in literature, but its ancestors (原型) can be found in books written hundreds of years ago. These books are often concerned with the presentation of some forms of ideal society, a theme which is still often found in modern stories.

Most of classics of science fiction, however, have been written within the last one hundred years. Books by writers such as Jules Verne and H. G. Wells, to mention just two well-known authors, have been translated into many languages.

Modern science fiction writers don't write about men from Mars or space adventure stories. They are more interested in predicting the results of technical developments on society and the human mind; or in imagining future worlds which are a reflection (反映) of the world which we live in now. Because of this their writing has obvious political undertones (含意) .

In an age where science fact frequently overtakes(超越) science fiction, the writers may find it difficult to keep ahead of scientific advances. Those who are sufficiently clear-sighted to see the way we are going, however, may provide a valuable lesson on how to deal with the problems which society will inevitably face as it tries to come to terms with a continually changing view of the world.

Which of the following statements is NOT true？

A．Science fiction is fairly new in literature.

B．Science fiction is rather popular with people today.

C．Science fiction often deals with some forms of ideal society.

D．Hundreds of books classified as science fiction are printed every year.

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