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， with its cost recovered through service charges. Users are then coerced through clever marketing to upgrade to newer phones with more features to reinforce their dependence.
Whatever the outcome， it is obvious that technology will play an increasing part in our everyday lives. Beyond technology， digital convergence embraces the services， industrial practices and social behavior that form modern society. We have in our hands the technology to construct the most sophisticated machines ever built， but if they are unusable， simply because of their operating instructions， then recent lessons have taught us they will not survive. Whatever we design must be simple， reliable and useful. Perhaps this is where artificial intelligence will come in.
36. By digital convergence， the writer means
［A］ diversification of communication systems.
［B］ integrating a wide range of means of media.
［C］ adaptation of global standards to consumer habits.
［D］ detaching entertainment from communications.
37. In pointing out the problems faced in digital convergence， the author mainly employs the technique of
［A］ cause and effect analysis. ［B］ argumentation and comments.
［C］ contrast and comparison. ［D］ enumeration and elaboration.
38. By referring to the mobile phone， the author intends to show
［A］ a solution to costs involved in the technology.
［B］ the importance of catering to customers' needs.
［C］ a trick imposed on users by telephone companies.
［D］ the necessity of adding more features to phones.
39. The author asserts that the success of digital convergence will ultimately depend upon
［A］ considerable reduction of infrastructure costs.
［B］ standardization of communications systems.
［C］ practical designs by artificial intelligence.
［D］ dismissal of conventional consumer habits.
40. Towards the technology of digital convergence， the author's attitude can best be said to be one of
［A］ suspicion. ［B］ optimism.
［C］ frustration. ［D］ pessimism.
Part B 本部分内容请参见211页
Part C
Directions: Read the following text carefully and then translate the underlined segments into Chinese. Your translation should be written clearly on ANSWER SHEET 2. （10 points）
All U.S. nuclear weapons production facilities are presently closed down，and if the various agreements are adhered to， those facilities will never be required except for one critical capability. All modern nuclear weapons use uranium （铀）， plutonium（钚）， and tritium（氚）. Uranium and plutonium have very long half-lives， and there is large surplus of these materials.
Tritium， however， has a relatively short half-life of about 12.6 years，so about 5 percent of the amount on hand must be replaced each year to maintain the current inventory. （46） Because of the large retirement of nuclear weapons by the United States in compliance with early agreements and national policy， tritium from retired weapons has been used to make up that lost through natural decay . （47） However，in about 10 to 15 years，depending on future negotiations，the United States will need a guaranteed supply of tritium to maintain its stockpile at whatever level is agreed on .
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