【正文】 al vitamins A, D, E, and K. When fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carried into the bloodstream. Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides through the intestines without being broken down. Manufacturers say it’s that ability to slide unchanged through the intestines that makes olestra so valuable as a fat substitute. It provides consumers with the taste of regular fat without any bad effects on the body. But critics say olestra can prevent vitamins A, D, E, and K from being absorbed. It can also prevent the absorption of carotenoids（類胡蘿卜素）, pounds that may reduce the risk of cancer, heart disease, etc. Manufacturers are adding vitamins A, D, E, and K as well as carotenoids to their products now. Even so, some nutritionists are still concerned that people might eat unlimited amounts of food made with the fat substitute without worrying about how many calories they are consuming.36. We learn from the passage that olestra is a substance that ______________. A) contains plenty of nutrients B) renders foods caloriefree while retaining their vitamins C) makes foods easily digestible D) makes foods fatfree while keeping them delicious37. The result of the search for an easily digestible fat turned out to be ____________. A) mercially useless B) just as anticipated C) somewhat controversial D) quite unexpected38. Olestra is different from ordinary fats in that _____________. A) it passes through the intestines without being absorbed B) it facilitates the absorption of vitamins by the body C) it helps reduce the incidence of heart disease D) it prevents excessive intake of vitamins39. What is a possible negative effect of olestra according to some critics? A) It may impair the digestive system. B) It may affect the overall fat intake. C) It may increase the risk of cancer. D) It many spoil the consumers’ appetite.40. Why are nutritionists concerned about adding vitamins to olestra? A) It may lead to the overconsumption of vitamins. B) People may be induced to eat more than is necessary. C) The function of the intestines may be weakened. D) It may trigger a new wave of fake food production.Part III Vocabulary and Structure (20 minutes)Directions: There are 30 inplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best pletes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.41. The doctors don’t ___________ that he will live much longer. A) articulate B) anticipate C) manifest D) monitor42. I suggest we put the scheme into effect, for it is quite ___________. A) eligible B) sustainable C) probable D) feasible43. The old gentleman was a very ______ looking person, with grey hair and gold spectacles. A) respectful B) respected C) respective D) respectable44. This book is expected to ____________ the bestseller lists. A) promote B) prevail C) dominate D) exemplify45. That part of the city has long been ____________ for its street violence. A) notorious B) responsible C) historical D) illegal46. Under the guidance of their teacher, the pupils are building a model boat _____ by steam. A) towed B) pressed C) tossed D) propelled47. Having finished their morning work, the clerks stood up behind their desks, ___________ themselves. A) expanding B) stretching C) prolonging D) extending48. England’s team, who are now superbly fit, will be doing their best next week to _________ themselves for last year’s defeat. A) revive B) retort C) revenge D) remedy49. If you want to get into that tunnel, you first have to ____________ away all the rocks. A) haul B) transfer C) repel D) dispose50. It took us only a few hours to ___________ the paper off all four walls. A) shear B) scrape C) stroke D) chip51. The famous scientist ______________ his success to hard work. A) imparted B) granted C) ascribed D) acknowledged52. It is difficult to _____________ of a plan to end poverty. A) speculate B) conceive C) ponder D) reckon53. Now the cheers and applause ___________ in a single sustained roar. A) mingled B) concentrated C) assembled D) permeated54. Improved consumer confidence is _____________ to an economic recovery. A) crucial B) subordinate C) cumulative D) satisfactory55. Although the body is made up of many different tissues, these tissues are arranged in an _____________ and orderly fashion. A) incredible B) intricate C) internal D) initial56. If you work under a car when repairing it, you often get very ____________. A) waxy B) slippery C) sticky D) greasy57. The damage to his car was _______________。 therefore, he could repair it himself. A) considerable B) appreciable C) negligible D) invisible58. My sister is quite ____________ and plans to get an M. A. degree within one year. A) aggressive B) enthusiastic C) considerate D) ambitious59. The manager tried to wave aside these issues as ______ details that would be settled later. A) versatile B) trivial C) preliminary D) alternate60. His ________________ was telling him that something was wrong. A) intuition B) hypothesis C) inspiration D) sentiment61. This book is about how these basic beliefs and values affect important ____ of American life. A) fashions B) frontiers C) f