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推荐文章：2004年6月六级A真题及参考答案
推荐文章简介：
Part I Listening Comprehension (20 minutes) Section A Directions In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was sai
lecules 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&nbs
p;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 (类胡萝卜素), compounds 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 calorie-free while retaining their vitamins
C) makes foods easily digestible
D) makes foods fat-free while keeping them delicious
37. The result of the search for an easily digestible fat turned out to be ______.
A) commercially useles
s C) somewhat controversial
B) just as anticipated D) quite unexpected
38. 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 vitamins
39. What is a possible negative effect of olestra according to some critics
A) It may impair the digestive system. C) It may increase the risk of cancer.
B) It may affect the overall fat intake. D) It may spoil the consumers’ appetite.
40. Why are nutritionists concerned about adding vitamins to olestra
A) It may lead to the over-consumption 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 (20 minutes)
Directions
There are 30 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the centre.
41. The doctors don’t ______ that he will live much longer.
A) articulate C) manifest
B) anticipate D) monitor
42. I suggest we put the scheme into effect, for it is quite ______.
A) eligible C) probable
B) sustainable D) feasible
43. The old gentleman was a very ______ looking person, with grey hair and gold spectacles. A) respectful C) respective B) respected D) respectable
44. This book is expected to ______ the best-seller lists.
A) promote C) dominate B) prevail D) exemplify
45. That part of the city has long been ______ for its street violence.
A) notorious C) historical
B) responsible D) illegal
46. Under the guidance of their teacher, the pupils are building a
model boat ______ by steam.
A) towed C) tossed B) pressed D) propelled
47. Having finished their morning work, the clerks stood up behind their desks, ______ themselves.
A) expanding C) prolonging
B) stretching D) extending
48. England’s team, who are now superbly fit, will be doing their best next week to ______ themselves for last year’s defeat.
A) revive C) revenge B) retort D) remedy
49. If you want to get into that tunnel, you first have to ______ away all the rocks. A) haul C) repel B) transfer D) dispose
50. It took us only&nbs上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] 下一页 |
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