【正文】 雖然龍卷風(fēng)仍然是自然界最強(qiáng)烈的力量之一，雷達(dá)和先進(jìn)預(yù)警機(jī)制的使用已經(jīng)大大減小了它的破壞性。與傳統(tǒng)雷達(dá)不同的是，多普勒能追尋到一個雷暴旋風(fēng)系統(tǒng)，這個系統(tǒng)通常發(fā)生在龍卷風(fēng)之前。但傳統(tǒng)雷達(dá)有一些局限性。雖然人們可能預(yù)報是否會有龍卷風(fēng)發(fā)生， 但真正的龍卷風(fēng)警報只有在被雷達(dá)探測到以后才能發(fā)出。他還認(rèn)為：今天美國社會道德準(zhǔn)則已出現(xiàn)“只有傻瓜才守法的”危險傾向了。哈佛大學(xué)的社會學(xué)家戴維如今，人們隨手亂扔垃圾、偷稅漏稅、發(fā)出違禁噪音，以及開車時表現(xiàn)出來的無政狀府狀態(tài)，可謂是司空見慣。但令人感到痛心的是，顯然有好幾百萬美國人從來沒有想到過自己會是違法者，更不用說是犯罪分子了。s touchdown, pared to a warning of less than 2 minutes by visual sighting. Though tornadoes remain one of nature39。s likely path, its speed and the intensity of the storm. But conventional radar has limitations. An advanced form of radar, known as Doppler, has the ability to detect the first steps in the formation of a tornado. Unlike conventional radar, Doppler tracks a thunderstorm39。s software are, objectively speaking, quite subtle. He created the original face by digitally averaging 16 randomly selected female Caucasian faces. The changing program then exaggerated the ways in which female faces differ from male faces, creating, in humanbeautyscience field, a “hyperfemale”. The eyes grew a bit larger, the nose narrowed slightly and the lips plumped. These are shifts of just a few millimeters, but experiments in this country and Scotland are suggesting that both males and females find “feminized” versions of averaged faces more beautiful. Johnston hatched this little movie as part of his ongoing study into why human beings find some people attractive and others homely. He may not have any rock—solid answers yet, but he is far from alone in attempting to apply scientific inquiry to so ambiguous a subject. Around the world, researchers are marching into territory formerly staked out by poets and painters to uncover the underpinnings of human attractiveness. The research results so far are surprising—and humbling. Numerous studies indicate that human beauty may not be simply in the eye of the beholder or an arbitrary cultural artifact. It may be ancient and universal, wrought through ages of evolution that rewarded reproductive winners and killed off losers. If beauty is not truth, it may be health and fertility: Halle Berry’s flawless skin may fascinate moviegoers because, at some deep level, it persuades us that she is parasitefree. Human attractiveness research is a relatively young and certainly contentious field—the allure of hyperfemales, for example, is still hotly debated—but those on its front lines agree on one point: We won’t conquer “l(fā)ooks—ism” until we understand its source. As psychologist Nancy Etcoff puts it: “The idea that beauty is unimportant or a cultural construct is the real beauty myth. We have to understand beauty, or we will always be enslaved by it.” 41. The woman described in the very beginning of the text is_ ___ A. in fact in her late twenties. B. Johnston’s ideal girlfriend. C. a stunning beauty. D. is a professional prostitute. 42. Victor Johnston synthesized a new face by bining the features of 16_ ___ A. beautiful European women. B. different women around the world. C. casually chosen white women. D. ordinary western women. 43. Through a few tiny changes made by Johnston, the synthesized face became even more_ ___ A. masculine. B. average. C. feminine. D. neutral. 44. Victor Johnston has produced such an attractive face in order to_ ___ A. give his puter a beautiful screen. B. study the myth of human attractiveness. C. prove the human capacity to create beauties. D. understand why Caucasian faces are special. 45. Paragraph 4 suggests that human beauty may be_ ___ A. culturally different. B. a diseasefree idol. C. individualdependent. D. a world agreed value. 46. It’s a consensus among the researchers that humans are still unconscious of_ ___ A. why they look attractive. B. when attractiveness is important. C. how powerful beauty is. D. what constitutes beauty. Passage Two 4 It’s being something of a joke along the MaineCanada border. So many busloads of retired people crisscross the line looking for affordable drugs that the roadside stands should advertise, “Lobsters. Blueberries. Lipitor. Coumalin.” Except, of course, that such a market in prescription drugs would be illegal. These senior longdistance shopping sprees fall in a legal gray zone. But as long as people cross the border with prescriptions from a physician and have them filled for no more than a threemonth supply for personal use, customs and other federal officials leave them alone. The trip might be tiring, but people can save an average of 60 percent on the cost of their prescription drugs. For some, that’s the difference between taking the drugs or doing without. “The last bus trip I was on six months ago had 25 seniors,” says Chellie Pingree, former Maine state senator and now president of Common Cause. “Those 25 people saved$19. 000 on their supplies of drugs.” Pingree sponsored Maine RX, which authorizes a discounted price on drugs for Maine residents who lack insurance coverage. The law was challenged by drug panies but recently upheld by the U. S. Supreme Court. It hasn’t yet taken effect. Figuring out ways to spend less on prescription drugs has bee a multifaceted national movement of consumers, largely senior citizens. The prescription drug bill in America is$1 60 billion annually, and people over 65 fill five times as many prescriptions as working Americans on average. “But they do it on health benefits that are half as good and on ines that are half as large, ”says Richard Evans, senior analyst at Sanford C. Bernstein, an investment research firm. What’s more, seniors account for 20 percent of the voting public. It’s little wonder that the May 19 Supreme Court ruling got the attention of drug manufacturers and politicians across the country. The oftenoverlooked state of 1. 3 million tucked in the northeast corner of the country beca