[外语类试卷]专业英语四级(阅读)模拟试卷6及答案与解析.doc
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1、专业英语四级(阅读)模拟试卷 6及答案与解析 0 Creationists are deeply enamored of the fossil record, because they have been taught to repeat over and over that it is full of “gaps“ : “Show me your intermediates ! “ They fondly imagine that these “gaps“ are an embarrassment to evolutionists. Actually, we dont need fossil
2、s. The evidence for evolution would be entirely secure even if not a single corpse had ever fossilized, for there is more than enough evidence for the fact of evolution in the comparative study of modern species and their geographical distribution. The case for evolution is watertight without fossil
3、s, so it is paradoxical to use gaps in the fossil record as though they were evidence against evolution. What would be evidence against evolution would be the discovery of even a single fossil in the wrong geological stratum. As J. B. S. Haldane famously retorted when asked to name an observation th
4、at would disprove the theory of evolution, “Fossil rabbits in the Precambri-an!“ No such rabbits, no authentically anachronistic fossils of any kind, have ever been found. All the fossils that we have, and there are many indeed, occur, without a single authenticated exception, in the right temporal
5、sequence. Yes, there are gaps where there are no fossils at all, and that is only to be expected. But not a single solitary fossil has ever been found before it could have evolved. That is a very telling fact. A good theory is one that is vulnerable to disproof, yet is not disproved. Evolution could
6、 so easily be disproved if just a single fossil turned up in the wrong date order. Evolution has passed this test with flying colors. Skeptics of evolution who wish to prove their case should be diligently scrabbling around in the rocks, desperately trying to find anachronistic fossils. Maybe theyll
7、 find one. Want a bet? The biggest gap, and the one the creationists like best of all, is the one that preceded the so-called Cambrian Explosion. A little more than half a billion years ago, in the Cambrian era, most of the great animal phyla(门类 )“suddenly“ appear in the fossil record. Suddenly, tha
8、t is, in the sense that no fossils of these animal groups are known in rocks older than the Cambrian, not suddenly in the sense of instantaneously; the period we are talking about covers about 20 million years. Anyway, it is still quite sudden. And the Cambrian shows us a substantial number of major
9、 animal phyla “ already in an advanced state of evolution, the very first time they appear. It is as though they were just planted there, without any evolutionary history. “ Evolutionists of all stripes believe, however, that this really does represent a very large gap in the fossil record. On the e
10、volutionary view, are there so few fossils before the Cambrian era? Well, presumably , whatever factors applied to the flatworms(扁虫 )throughout geological time to this day, those same factors applied to the rest of the animal kingdom before the Cambrian. Probably, most animals before the Cambrian we
11、re soft-bodied like modern flatworms, probably rather small like modern turbellarians(涡虫类 ) just not good fossil material. Then something happened half a billion years ago to allow animals to fossilize freely the arising of hard, mineralized skeletons, for example. 1 According to the first paragraph
12、, we can learn that_. ( A) the evolutionists do not admit that there are “gaps“ in the fossil record ( B) evolutionists greatly rely on the fossil record to detect the evolution trace ( C) studies of modern species and their geographical distribution can support the evolution theory ( D) the evoluti
13、on theory can not be established without the fossil record 2 The “ telling fact“ in Paragraph 2 refers to the fact that_. ( A) no fossil has ever been found before it could have evolved ( B) there are gaps where there are no fossils at all ( C) there has been no strong evidence against evolution the
14、ory ( D) a fossil belonging to the wrong date order can disprove evolution 3 According to Paragraph 3, the following claims are correct EXCEPT that_. ( A) no animal phyla exist before the Cambrian era ( B) Cambrian Explosion is a fossil discovery ( C) only fossils of advanced animal phyla have been
15、found yet ( D) Cambrian Explosion indicates a gap in the animal phyla fossil record 4 On the evolutionary view, there are so few fossils before the Cambrian era probably because_. ( A) some complex factors destroyed the evolutionary process ( B) something happened to prevent animals from fossilizing
16、 freely before the Cambrian ( C) most animals bodies before the Cambrian were soft and too small to form fossils ( D) there was really a very large gap in the fossil record 5 In the passage, the author does NOT_. ( A) explain why evolution theory has not been disproved ( B) introduce the biggest gap
17、 in the fossil record to refute the creationists ( C) encourage the skeptics of evolution to collect evidence against evolution ( D) explain why the fossil record is not the only evidence of evolution 5 Traditionally, we associate the early years with risky behavior but one consequence of the recess
18、ion appears to be a shift in the way 18-to 34-year-olds handle money. Affluent rnil-lennials and 30-somethings say their tolerance for risky investment is much lower than it was a year ago, rivaled only by people over the age of 65, according to a new study by Merrill Lynch Global Wealth Management.
19、 “It truly is a generational change, “ says Dave Geske, an executive at Ameriprise Financial. “The market got cut in half. Housing got cut in half. People saw their asset classes get blown up. Avoiding risk may feel sensible to a generation whose financial coming-of-age has been bookended by the dot
20、com bubble and the subprime-mortgage meltdown. In 2010, only 41 percent of 18-to 29-year-olds reported working full time, compared with 50 percent in 2006, according to the Pew Research Center. Millennials were more likely to report losing their jobs than workers over the age of 30, and many recent
21、college graduates have had a hard time finding a toehold in a tight labor market, even as the national unemployment rate rose Friday to 9. 6 percent. If the 18-to 34-year-olds feel more cautious about investing, its partly because they have less money to spend and little economic security. In respon
22、se, financial firms have begun adjusting their products. Target-date retirement funds for young investors, managed by mutual-fund giant John Hancock, recently decreased exposure to stocks by 10 to 15 percent. Anecdotally, financial planners say young clients are keeping more cash on hand, and online
23、 banks such as INC Direct have rolled out savings accounts with slightly higher interest rates. “ Were seeing people try to put bells and whistles on very conservative investment, “ says David Carter, chief investment officer at Lenox Advisors. But in the long term, is it wise for 18-to 34-year-olds
24、 to avoid stocks, load up on bonds, and keep more cash in their bank accounts? Perhaps not, if they want to live comfortably in retirement. “You need the growth potential of stocks, “ says Christine Benz, director of personal finance for Morningstar. com. “ Investors cannot expect the same returns f
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