第5部分：补全短文（第46-50题，每题2分，共10分)
下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章面貌。
The Tough Grass that Sweetens Our Lives
Sugar cane was once a wild grass that grew in New Guinea and was used by local people for roofing their houses and fencing their gardens. Gradually a different variety evolved which contained sucrose and was chewed on for its sweet taste. Over time, sugar cane became a highly valuable commercial plant, grown throughout the world. 46.
Sugar became a vital ingredient in all kinds of things, from confectionery to medicine, and, as the demand for sugar grew, the industry became larger and more profitable. 47. Many crops withered and died, despite growers’ attempts to save them, and there were fears that the health of the plant would continue to deteriorate.
In the 1960s, scientists working in Barbados looked for ways to make the commercial species stronger and more able to resist disease. They experimented with breeding programmes, mixing genes from the wild species of sugar cane, which tends to be tougher, with genes from the more delicate, commercial type. 48. This sugar cane is not yet ready to be sold commercially, but when this happens, it is expected to be incredibly profitable for the industry.
49. Brazil, which produces one quarter of the world's sugar, has coordinated an international project under Professor Paulo Arrudo of the Universidade Estaudual de Campinas in Sao Paulo. Teams of experts have worked with him to discover more about which parts of the genetic structure of the plant are important for the production of sugar and its overall health.医学全.在.线
www.lindalemus.comDespite all the research, however, we still do not fully understand how the genes function in sugar cane. 50. This gene is particularly exciting because it makes the plant resistant to rust, a disease which probably originated in India, but is now capable of infecting sugar cane across the world. Scientists believe they will eventually be able to grow a plant which cannot be destroyed by rust.
A. Eventually, a commercial plant was developed which was 5 percent sweeter than before, but also much stronger and less likely to die from disease.
B. Unfortunately, however, the plant started to become weaker and more prone to disease.
C. One major gene has been identified by Dr Angelique D'Hont and her team in Montpelier, France.
D. The majority of the world's sugar now comes from this particular commercial species.
E. Sugar cane was now much vigorous and the supply of sugar is therefore more guaranteed.
F. Since the 1960s, scientists have been analysing the mysteries of the sugar cane's genetic code.
第6部分：完形填空（第51-65题，每题1分，共15分)
下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。
Exercise
Whether or not exercise adds to the length of life, it is common experience that a certain amount of regular exercise (51) health and contributes a feeling of well-being. Furthermore, exercise (52) involves play and recreation (娱乐), and relieves nervous tension and mental fatigue in so (53) , is not only pleasant but beneficial.
How much and what kind of exercise one should (54) merits careful consideration. The growing child and the normal young man and young woman thrill (兴奋) with the exhilaration of strenuous sports. They fatigue to the (55) of exhaustion but recover promptly with a period of rest. But not so with those of middle age and beyond. For them moderation is (56) vital importance.
Just how much exercise a person of a given age can safely take is a question hard to (57) . Individual variability is too great to permit generalization. A game of tennis may be perfectly safe for one person of forty but folly (愚蠢) for another. The safe (58) for exercise depends on the condition of the heart, the condition of the muscles, the (59) of exercise, and the regularity with which it is taken. Two general suggestions, however, will (60) as sound advice for anyone. The first is that the (61) of the heart and general health should be determined periodically by careful, thorough physical examinations. The other is that exercise should be kept (62) the point of physical exhaustion. 医学全.在.线
www.lindalemus.comWhat type of exercise one should (63) depends upon one's physical condition. Young people can safely enjoy competitive sports, but most older persons do better to limit themselves to less strenuous (64) . Walking, swimming and skating are among the sports that one can enjoy and safely (65) in throughout life. Regularity is important if one is to get the most enjoyment and benefit out of exercise.
51. A. damages B. enjoys C. provides D. improves
52. A. which B. where C. when D. why
53. A. doing B. playing C. making D. treating
54. A. develop B. go C. use D. take
55. A. point B. place C. position D. part
56. A. to B. below C. of D. on
57. A. raise B. answer C. beg D. discuss
58. A. approach B. distance C. period D. limit
59. A. variation B. method C. process D. type
60. A. refer B. regard C. serve D. treat
61. A. size B. shape C. condition D. attack
62. A. below B. above C. against D. beside
63. A. endure B. choose C. study D. produce
64. A. activities B. efforts C. jobs D. lives
65. A. compete B. get C. participate D. give
参考答案
第1部分：词汇选项
1. D. spread
2. C. end
3. A. about
4. B. offensive
5. D. attracted
6. D. influence
7. B. travel
8. B. inflexible
9. B. strange
10. D. break
11. A. cautious
12. D. found by chance
13. C. fixed
14. B. understand
15. D. unbelievable
第2部分：阅读判断
16-22 BABCBAA
第3部分：概括大意与完成句子
23-26 BFDA 27-30 CEAD
第4部分：阅读理解
31-35 CDBBA 36-40 CCDBC 41-45 AABCA
第5部分：补全短文
46-50 DBAFC
第6部分：完形填空
51-55 DAADA 56-60 CBDDC 61-65 CABAC
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