2005年1月大学英语六级考试真题及答案

概要：ience education B) solve most of the problems in school teaching C) be able to meet the demands of the community D) quickly dominate U.S. educational practice 35. Putting the new science and math standards into practice will prove difficult because ________. A) there is always controversy in educational circles B) not enough educators have realized the necessity for doing so C) school districts are responsible for making their own decisions D) many schoolteachers challenge the acceptability of these standardsPassage FourQuestions 36 to 4

2005年1月大学英语六级考试真题及答案,http://www.dxs51.com
  C) encourages learning both in depth and in scope
  D) scratches the surface of a wide range of topics

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 34. The new National Science Education Standards are good news in that they will ________.
  A) provide depth to school science education
  B) solve most of the problems in school teaching
  C) be able to meet the demands of the community
  D) quickly dominate U.S. educational practice
 35. Putting the new science and math standards into practice will prove difficult because ________.
  A) there is always controversy in educational circles
  B) not enough educators have realized the necessity for doing so
  C) school districts are responsible for making their own decisions
  D) many schoolteachers challenge the acceptability of these standards

Passage Four
Questions 36 to 40 are based on the following passage.
 “I’ve never met a human worth cloning,” says cloning expert Mark Westhusin from his lab at Texas A&M University. “It’s a stupid endeavor.” That’s an interesting choice of adjective, coming from a man who has spent millions of dollars trying to clone a 13-year-old dog named Missy. So far, he and his team have not succeeded, though they have cloned two cows and expect to clone a cat soon. They just might succeed in cloning Missy this spring – or perhaps not for another 5 years. It seems the reproductive system of man’s best friend is one of the mysteries of modern science.
 Westhusin’s experience with cloning animals leaves him upset by all this talk of human cloning. In three years of work on the Missy project, using hundreds upon hundreds of dog’s eggs, the A&M team has produced only a dozen or so embryos (胚胎) carrying Missy’s DNA. None have survived the transfer to a surrogate (代孕的) mother. The wastage of eggs and the many spontaneously aborted fetuses (胎) may be acceptable when you’re dealing with cats or bulls, he argues, but not with humans. “Cloning is incredibly inefficient, and also dangerous,” he says.
 Even so, dog cloning is a commercial opportunity, with a nice research payoff. Ever since Dolly the sheep was cloned in 1997, Westhusin’s phone has been ringing with people calling in hopes of duplicating their cats and dogs, cattle and horses. “A lot of people want to clone pets, especially if the price is right,” says Westhusin. Cost is no obstacle for Missy’s mysterious billionaire owner; he’s put up $3.7 million so far to fund A&M’s research.
 Contrary to some media reports, Missy is not dead. The owner wants a twin to carry on Missy’s fine qualities after she does die. The prototype is, by all accounts, athletic, good-natured and supersmart. Missy’s master does not expect an exact copy of her. He knows her clone may not have her temperament. In a statement of purpose, Missy’s owner and the A&M team say they are “both looking forward to studying the ways that her clones differ from Missy.”
 Besides cloning a great dog, the project may contribute insight into the old question of nature vs. nurture. It could also lead to the cloning of special rescue dogs and many endangered animals.
 However, Westhusin is cautious about his work. He knows that even if he gets a dog pregnant, the offspring, should they survive, will face the problems shown at birth by other cloned animals: abnormalities like immature lungs and heart and weight problems. “Why would you ever want to clone humans,” Westhusin asks, “when we’re not even close to getting it worked out in animals yet?”
 36. By “stupid endeavor” (Line 2, Para. 1), Westhusin means to say that ________.
  A) animal cloning is not worth the effort at all
  B) animal cloning is absolutely impractical
  C) human cloning should be done selectively
  D) human cloning is a foolish undertaking
 37. What does the first paragraph tell us about Westhusin’s dog cloning project?
  A) Its success is already in sight.
  B) Its outcome remains uncertain.
  C) It is doomed to utter failure.

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