In addition to using massive rule-programmed machines ， computer programmers are also trying to teach computers to learn how to think for themselves through the “ experience ” of translating. Even with these efforts ， programmers admit that a “ thinking ” computer might not ever be invented in the future.
46. Computers today are capable of .
A. defeating the best chess player in the world
B. telling subtle differences between languages
C. translating over 60 percent of difficult texts
D. doing human-like common sense reasoning
47. According to the passage ， which of the following is NOT true ？
A. Computers can translate dry and difficult phrases.
B. Computers can understand sensitive language.
C. Computers can translate technical language.
D. Computers can understand pre-programmed words.
48. The major problem with computer translating programs is that computers .
A. can not translate illogical sentences
B. do not have a large enough capacity of memory
C. can not understand grammatical rules
D. do not have intuition to process language
49. To improve machine translation ， computer programmers are trying to .
A. use powerful rule-programmed computers
B. teach computers to think by practice
C. have computers compile translating dictionaries
D. add explanations of words in computer programs
50. The passage suggests that .
A. the accuracy rate of machine translation cannot be raised
B. it is impossible for computers to think as humans do
C. only technical language is suitable for machine translation
D. it is impossible to determine of identical words
Passage Five
Several years ago during the dot-com passion ， Manhattan lawyer John Kennedy sometimes wore a dark blue suit to meet potential Internet clients. But he soon realized that his conservative clothes were a strike against him before he even shook hands. So he began to do business in casual ， open-shirt clothes.
But now the tables have turned. Today Silicon Valley executives are the ones often coming out in suits. No wonder that Fortune 500 executives are dusting off their silk ties and pants. “ I would say there is a trend now toward a little more business dress ，” said Kennedy.“I find myself wearing suits more.”
While there isn ’ t a rush toward formal office wear ， clothiers and executives say the workplace uniform is heading that way. In many offices ， men are wearing jackets ， ties and pants more frequently than a year ago. Top women executives never went as casual as men ， so the shift doesn ’ t affect them as dramatically.
“ Business casual ” took several years to catch on. It started with casual Fridays ， evolved to casual summers ， then became casual everyday. A return to the button-down look also will take time ， observers say. Lehman Brothers is one of the few major firms that has officially returned to a formal dress policy ， at least for offices that clients visit. Men were told to wear suits and ties and women to wear suits or dresses. The shift is due to a rethinking of work environments and more contacts with clients as the firm has grown.
