US President Bush wears a coat and tie in the White House office and expects his staff to dress “professionally,” which some say sets a tome for the nation.

　　……

　　51. "Business casual" was prevalent several years ago because ______.

　　A. the Manhattan law business grew very quickly

　　B. shaking hands with clients became popular

　　C. the country was fighting the conservatives

　　D. the Internet companies boomed then

　　52. When the "business casual" prevailed, ______.

　　A. businessmen wore ties only in workplace

　　B. businessmen didn’t wear ties at all

　　C. businesswomen didn’t wear formally in workplace

　　D. businesswomen still wore formally everywhere

　　53. The Fortune 500 executives ______.

　　A. set the trend toward more casual wear

　　B. are particular about what they wear

　　C. begin to wear suits more often than before

　　D. are usual1y indifferent to fashion trend

　　54. At the beginning of the "business casual" trend, business people wore casually______.

　　A. when meeting clients

　　B. on weekends

　　C. in summer

　　D. almost everyday

　　55. It is implied in the passage that the change of business dress from the casual to the formal reflects ______.

　　A. the changed of people’s taste in fashion

　　B. the ups and downs of the fashion industry

　　C. the ups and downs of the Internet companies

　　D. people’s difference in business dress

　　答案：

　　31.C,32.A,33.C,34.A,35.A,

　　36.B,37.B,38.D,39.B,40.D

　　41.A,42.C,43.D,44.B,45.B

　　46.A,47.B,48.A,49.B,50.B

　　51.D,52.D,53.C,54.B,55.C