It's not surprising, then, that millions of Americans have become obsessed (著迷) with staying slim and "in shape". The pursuit of a youthful physical appearance is not, however, the sole reason for America's obsession with diet and exercise. Recent research has shown the critical importance of diet and exercise for personal health. As in most technologically developed nations, the life-style of North Americans has changed dramatically during the course of the last century. Modern machines do all the physical labor that people were once forced to do by hand. Cars and buses transport us quickly from point to point. As a result of inactivity and disuse, people's bodies can easily become weak and vulnerable to disease. In an effort to avoid such a fate, millions of Americans are spending more of their time exercising every day.

　　26. From the passage we can infer taboo is .

　　A. a strong desire to do something strange or terrible

　　B. a crime committed on impulse

　　C. behavior considered unacceptable in society's eyes

　　D. an unfavorable impression left on other people

　　Based on the ideas presented in the passage we can conclude "being fat"_______.

　　A. will always remain a taboo B. is not considered a taboo by most people

　　C. has long been a taboo D. may no longer be a taboo some day

　　The topic of fat is_______many other taboo subjects.

　　A. the same as B. different from

　　C. more popular than D. less often talked about than

　　In the U. S. , thin is "in", fat is "out", this means_______.

　　A. thin is "inside", fat is "outside"

　　B. thin is "diligent", fat is "lazy"

　　C. thin is "youthful", fat is "spiritless"

　　D. thin is "fashionable", fat is "unfashionable"

　　The main reason the passage gives for why so many Americans are exercising regularly is_______.

　　A. their changed life-style

　　B. their eagerness to stay thin and youthful

　　C. their appreciation of the importance of exercise

　　D. the encouragement they have received from their companies

　　26. C 27. D 28. B 29. D 30. B

　　In October 1987, the National Board for Professional Teaching Standards began its work to set new standards of accomplishment for the teaching profession and to improve the 11 of education available to all children in the United States.

　　Teachers are 12 to students and their learning. They must act on the belief that all students can learn. They must recognize 13 differences in their students and adjust their practice 14 . They must know that their mission extends beyond developing the cognitive capacity of their students. They must be 15 with their students' self-concept, with their motivation, and with the development of character.

　　Teachers must know the subjects they teach and how to teach them. They must 16 specialized knowledge of how to convey a subject to students. Teachers are responsible for managing and monitoring student learning. They must call on 17 methods to meet their goals, knowing and being able to 18 a variety of instructional skills. Teachers must think systematically about their practice and learn from experience, seeking the 19 of others and drawing on education research and scholarship to improve their practice.

　　As members of learning communities, teachers contribute to school effectiveness by collaborating with other professionals. They take ___20 of

　　community resources, cultivating knowledge of their school's community as a powerful resource for learning.

　　A. employ

　　B. advice

　　C. quantity

　　D. committed

　　E. command

　　F. consulted

　　G. manual

　　H. approximately

　　I. concerned

　　J. advantage

　　K. multiple

　　L. accordingly

　　M. individual

　　N. embrace

　　O. quality

　　II. O 12. D 13. M 14. L 15. I 16. E 17. K 18. A 19. B 20. J