44. The author’s tone is ______.
(A) ironical
(B) sarcastic
(C) subjective
(D) objective
(E) indifferent

40. Some art connoisseurs have remarked that Picasso was more versatile than any artist. (A)Some(B)connoisseurs(C)have remarked(D)more versatile(E)any artist

41. What is the best title for this passage? (A) The Habitual Drinkers (B) Alcoholism: Fact and Fiction (C) Curing the Alcoholics (D) Alcoholism in America (E) Therapy for Alcoholics

42. According to the passage, which of the following statement is NOT true? (A) Many alcoholics feel guilty about drinking. (B) The habitual drinker is only occasionally drunk. (C) The addict needs medical help with his problem. (D) Episodic drinkers never overindulge. (E) The alcoholics often have a low self-esteem.

43. We can conclude from the passage that _____. (A) few alcoholics are episodic drinkers (B) episodic drinkers’ “bouts” are worse than those of habitual drinkers (C) most alcoholics are emotionally disturbed people (D) the addict-type alcoholic is always drunk (E) Alcoholics are basically immoral and insane 第 4 頁，共 6 頁

45. According to the passage, the word episodic means ______. (A) constant (B) periodic (C) suicidal (D) uncontrollable (E) self-conscious

46. Which of the following statements best represents the main idea of this passage? (A) Fossil fuels could offer enormous benefit. (B) Carbon dioxide helps bump crop yields. (C) Carbon dioxide affects climate change. (D) Climate change and crop yields are closely related. (E) Carbon dioxide effect could help chillier regions to produce more crops.

47. According to the passage above, which of the following statements is TRUE? (A) Humans might have raised the level of carbon dioxide by 40% in this century. (B) All life runs on fossil fuels. (C) Some plants convert carbon into glucose. (D) Extra gas could always supercharge food crops. (E) Plant growth depends more on fossil fuels than on gas.

48. Scientists in the above passage suggest that _____. (A) the use of fertilizers could affect level of carbon dioxide (B) plant growth is dependent on climate change (C) spraying extra carbon dioxide helps plant growth (D) crops are very sensitive to heat (E) to bump crop yields we need more researches 第 5 頁，共 6 頁

49. In the passage above, the studies of economists suggest that _____. (A) crop yields and natural temperature should not be linked together (B) too much temperature increase suppresses crop yields (C) 30 degrees Celsius is the threshold for the growth of soybeans (D) with more scorching days crop yield increase could be expected (E) France and China suffer from temperature increases

50. What is implied by the phrase our best guess at the moment in the last paragraph of the passage above? (A) Climate change was aided by the carbon dioxide effect. (B) Climate change was likely to pose severe challenges for agriculture in the tropics. (C) Climate change aided by the carbon dioxide effect is probably beneficial in some of the chillier regions of the Northern Hemisphere. (D) Climate change reduces the dependence on fossil fuels. (E) Economists are no equal to scientists in terms of climate change.