45. What best describes James Watson's main idea in this passage?
(A) Governments are not encouraging scientists to study evolution
(B) Darwin's idea of natural selection cannot be challenged by genetic experiments.
(C) Human beings are not yet ready to handle the consequences of experiments on chromosomes.
(D) Politics is hindering scientific progress that may bring benefits to future generations.

41. Which of the following reflects American people's concern regarding the IBM sale? (A) American people feel that IBM is sold too cheaply to the Chinese company. (B) American people are afraid that the Chinese company will intrude other industries. (C) American people believe that national security may be threatened. (D) Lenovo's technology is worse than that of IBM.

42. Which of the following words does NOT reflect IBM's attitude toward the sale of its PC department? (A) nostalgic (B) relieved (C) eager (D) keen

43. What does the word "lucrative” mean? (A) important (B) profitable (C) excellent (D) specific

44. What does the phrase "the beginning of the end of this ambitious company" mean in the last line? (A) Lenovo may begin to fall apart. (B) The end of the IBM sale is finally in sight. (C) It's seeing the end of the tunnel. (D) The company will feel happy having finished the deal.

46. Which of the following is true? (A) All forms of DNA manipulation are encouraged by law. (B) Scientists could basically do whatever they want with gene experiments, with only one exception. (C) Scientists must remain in a block if they want to study genes. (D) Scientists are incapable of initiating the experiments on human germ cells.

47. Regarding people's concerns about germ cells experiments which of the following statements is NOT true? (A) Human beings probably are not able to afford the consequences of the human genetic experiments. (B) Governments are afraid that, if they allow the experiments, scientists may force humans to move toward and evolve on an unnatural path. (C) Our chromosomes are very valuable, people should not try to profit on them. (D) Trying to manipulate human genes and hence affect the course of natural evolution is dangerous.

48. Which of the following statements does NOT reflect James Watson's attitude? (A) In the next century, scientists probably will fail to insert genetic materials into human germ cells. (B) Experiments on human germ cells should not be delayed. (C) Scientists are not responsible and may create monsters! (D) The dangers that people fear regarding evolution might never happen.

49. What do you think the phrase "off limits" means? (A) Forbidden. (B) Doubtful. (C) Interesting (D) Unlimited

50. What does the phrase "to modify ...our chromosomal instruction books" mean? (A) to learn genetic science (B) to change our DNA (C) to realize the course of evolution (D) to help teach chromosomes

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