In what now seems like the prehistoric times of computer history, the early postwar era, there was a quite widespread concern that computers would take over the world from man one day. Already today, less than forty years later, as computers are relieving us of more and more of the routine tasks in business and in our personal lives, we are faced with a less dramatic but also less foreseen problem. People tend to be over-trusting of computers and are reluctant to challenge their authority. Indeed, they behave as if they were hardly aware that wrong buttons may be pushed, or that a computer may simply malfunction.

　　Obviously, there would be no point in investing in a computer if you had to check all its answers, but people should also rely on their own internal computers and check the machine when they have the feeling that something has gone awry. Questioning and routine double checks must continue to be as much a part of good business as they were in pre-computer days. Maybe each computer should come with the following warning: for all the help this computer may provide, it should not be seen as a substitute for fundamental thinking and reasoning skills.

　　1.What is the main purpose of this passage?

　　A. To look back to the early days of computers.

　　B. To explain what technical problems may occur with computers.

　　C. To discourage unnecessary investment in computers.

　　D. To warn against a mentally lazy attitude towards computers.

　　2.According to the passage, initial concerns about computers were that they might_____

　　A. lead us into the post-war era

　　B. be quite widespread

　　C. take control

　　D. take over routine tasks

　　3.The passage recommends those dealing with computers to_____

　　A. be reasonably skeptical abort them

　　B. check all their answers

　　C. substitute them for basic thinking

　　D. use them for business purposes only

　　4.An "internal computer" is_____

　　A. a computer uses exclusively by one company for its own problems

　　B. a person's store of knowledge and the ability to process it

　　C. the most up-to-date in-house computer a company can buy

　　D. a computer from the post-war era which is very reliable

　　5.The passage suggests that the present-day problem with regard to computers is_____

　　A. challenging

　　B. psychological

　　C. dramatic

　　D. malfunctioning

　　[难点]

　　1.widespread 普遍的，广泛的

　　2.relieve 减轻，解除，使得到解脱

　　3.dramatic 引人注目的，突然的

　　4.foreseen 预见的，预知的

　　5.reluctant 不情愿的，不愿意的

　　6.authority 权威

　　7.malfunction 发生故障，发生功能障碍

　　8.invest 投资;花钱买;耗费，投入

　　9.rely on 依赖，依靠

　　10.go awry 出岔子，失败;(人)背离正道

　　11.substitute 代替物，代用器