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When the world was a simpler place, the rich were fat, the poor were thin, and right-thinking people worried about how to feed the hungry. Now, in much of the world, the rich are thin, the poor are fat, and right-thinking people are worrying about obesity. Evolution is mostly to blame. It has designed mankind to cope with deprivation, not plenty. People are perfectly tuned to store energy in good years to see them through lean ones. But when bad times never come, they are stuck with that energy, stored around their expanding bellies. Thanks to rising agricultural productivity, lean years are rarer all over the globe. Modern-day Malthusians, who used to draw graphs proving that the world was shortly going to run out of food, have gone rather quiet lately. According to the UN, the number of people short of food fell from 920m in 1980 to 799m 20 years later, even though the world"s population increased by 1. 6 billion over the period. This is mostly a cause for celebration. Mankind has won what was, for most of his time on this planet, his biggest battle: to ensure that he and his offspring had enough to eat. But every silver lining has a cloud, and the consequence of prosperity is a new plague that brings with it a host of interesting policy dilemmas. As a scourge of the modern world, obesity has an image problem. It is easier to associate with Father Christmas than with the four horses of the Apocalypse. But it has a good claim to lumber along beside them, for it is the world"s biggest public-health issue today — the main cause of heart disease, which kills more people these days than AIDS, malaria, war; the principal risk factor in diabetes; heavily implicated in cancer and other diseases. Since the World Health Organisation labeled obesity an "epidemic" in 2000, reports on its fearful consequences have come thick and fast. Will public-health warnings, combined with media pressure, persuade people to get thinner, just as they finally put them off tobacco Possibly. In the rich world, sales of healthier foods are booming and new figures suggest that over the past year Americans got very slightly thinner for the first time in recorded history. But even if Americans are losing a few ounces, it will be many years before the country solves the health problems caused by half a century"s dining to excess. And, everywhere else in the world, people are still piling on the pounds. That"s why there is now a consensus among doctors that governments should do something to stop them. "Malthusians" (Line 1-2, Para. 3) probably held that

A. fatness could be attributed to evolution.
B. food wouldn"t feed all the people on the earth.
C. it was harmful for people to be obese.
D. the number of starving people decreased.

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FriendshipFriends play an important part in our lives, and although we may take the fact of friendship for granted, we often don"t clearly understand how we make friends. While we get on well with a number of people, we are usually friends with only a very few—for example, the average among students is about 6 per person.Moreover, a great many relationships come under the blanket term "friendship". In all cases, two people like each other and enjoy being together, but beyond that, the degree of intimacy between them and the reasons for their mutual interest vary enormously.Initially, much depends on how people meet, and on favourable first impressions. As we get to know people, we take into account things like age, race, physical attractiveness, economic and social status, and intelligence. Although these factors are not of prime importance, it is more difficult to relate to people when there is a marked difference in age and background.On a more immediate level, we are sensitive to actual behaviour, facial expression, and tone of voice. Friends will stand closer together and will spend more time looking at each other than mere acquaintances. Smiles and soft voices also express friendliness, and it is because they may transmit the wrong signals that shy people often have difficulty in making friends. A friendly gaze with the wrong facial expression can turn into an aggressive stare, and nervousness may be misread as hostility. People who do not look one in the eye are mistrusted when, in fact, they simply lack confidence.Some relationships thrive on argument and discussion, but it is usual for close friends to have similar ideas and beliefs, to have attitudes and interests in common—they often talk about "being on the same wavelength". It generally takes time to reach this point; sometimes people "click" immediately. The more intimately involved people become, the more they rely on one another. People want to do friends favours and hate to let them down. Equally, friends have to learn to make allowances for each other, to put up with irritating habits, and to tolerate differences of opinion. Imagine going camping with someone you occasionally meet for a drink!In contrast with marriage, there are no friendship ceremonies, no rituals to strengthen the association between two people. But the mutual support and understanding that results from shared experiences and emotions does seem to create a powerful bond, which can overcome differences in background, and break down barriers of age, class or race. The degree of intimacy between friends is largely determined by their social status.______

A. Right
B. Wrong
C. Not mentioned

Recent years have brought minority-owned businesses in the United States unprecedented opportunities — as well as new and significant risks. Civil rights activists have long argued that one of the principal reasons why Blacks, Hispanics, and other minority groups have difficulty establishing themselves in business is that they lack access to the sizable orders and subcontracts that are generated by large companies. Now Congress, in apparent agreement, has required by law that businesses awarded federal contracts of more than $ 1,000,000 do their best to find minority subcontractors and record their efforts to do so on forms filed with the government. Indeed, some federal and local agencies have gone so far as to set specific percentage goals for apportioning parts of public works contracts to minority enterprises. Corporate response appears to have been substantial. According to figures collected in 1997, the total of corporate contracts with minority businesses rose from $177 million in 1992 to $2.2 billion in 1997. The projected total of corporate contracts with minority businesses for the early 2000"s is estimated to be over 70 billion per year with no letup anticipated in the next decade. Promising as it is for minority businesses, this increased patronage poses dangers for them, too. First, minority firms risk expanding too fast and overextending themselves financially, since most are small concerns and, unlike large businesses, they often need to make substantial investments in new plants, staff, equipment, and the like in order to perform work subcontracted to them. If, thereafter, their subcontracts are for some reason reduced, such firms can face potentially crippling fixed expenses. The world of corporate purchasing can be frustrating for small entrepreneurs who get requests for elaborate formal estimates and bids. Both consume valuable time and resources, and a small company"s efforts must soon result in orders, or both the morale and the financial health of the business will suffer. A second risk is that White-owned companies may seek to cash in on the increasing apportionments through formation of joint ventures with minority-owned concerns. Of course, in many instances there are legitimate reasons for joint ventures; clearly, White and minority enterprises can team up to acquire business that neither could acquire alone. But civil rights groups and minority business owners have complained to Congress about minorities being set up as "fronts" with White backing, rather than being accepted as full partners in legitimate joint ventures. Third, a minority enterprise that secures the business of one large corporate customer often runs the danger of becoming — and remaining — dependent. Even in the best of circumstances, fierce competition from larger, more established companies makes it difficult for small concerns to broaden their customer bases: when such firms have nearly guaranteed orders from a single corporate benefactor, they may truly have to struggle against complacency arising from their current success. Compared with the requirements of law, the percentage goals set by some federal and local agencies are

A. more popular with large corporations.
B. more concrete.
C. less controversial.
D. less expensive to enforce.

Rebel uprising kills seventy! Plane crash leaves no survivors! Rock star dies of overdose! Evening newscasts and metropolitan newspapers scream the bad news, the sensational, and the action. Audiences of today focus upon the sensational action, the violence, the loss, the terror. Individually, our lives are redirected, our worlds reshaped, and our images changed. While wary of the danger of change, we human beings surrender daily to exploitation of values, opportunities, and sensitivity. The evolution has brought us to the point that we believe little of what is presented to us as good and valuable; instead, we opt for suspicion and disbelief, demanding proof and something for nothing. Therein lies the danger for the writer seeking to break into the market of today. Journalists sell sensationalism. The journalist who loses sight of the simple truth and opts only for the sensation loses the audience over the long run. Only those seeking a short-term thrill are interested in following the journalistic thinking. How, then do we capture the audience of today and hold it, when the competition for attention is so fierce The answer is writing to convey action, and the way to accomplish this is a simple one — action verbs. The writer whose product suspends time for the reader or viewer is the successful writer whose work is sought and reread. Why Time often will melt away in the face of the reality of life"s little responsibilities for the reader. Instead of puzzling over a more active and more accurate verb, some journalists often limp through passive voice and useless tense to squeeze the life out of an action-filled world and fill their writing with missed opportunities to appeal to the reader who seeks that moment of suspended time. Recently, a reporter wrote about observing the buildings in a community robbed by rebel uprising as "thousands of bullet holes were in the hotel. " A very general observation. Suppose he had written, "The hotel was pocked with bullet holes. " The visual image conjured up by the latter is far superior to the former. Here is the reader... comfortable in the easy chair before the fire with the dog at his feet. The verb "pocked" speaks to him. The journalist missed the opportunity to convey the reality. Why do the media always report sensational topics

A. Journalists of today are excited about conveying these topics.
B. Newscasts and newspapers pay the utmost attention to these topics.
C. These topics hold greater appeal for the public than any other topics.
D. Audiences of today don"t believe what is good and valuable.

贫血时患者表现皮肤、粘膜苍白,较为可靠的检查部位是

A. 手背皮肤
B. 面颊皮肤
C. 口腔粘膜
D. 睑结膜
E. 耳廓皮肤

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