There is no denying that students should learn something about how computers work, just as we expect them at least to understand that the internal-combustion engine (内燃机) has something to do with burning fuel, expanding gases and pistons (活塞) being driven. For people should have some basic idea of how the things that they use do what they do. Further, students might be helped by a course that considers the computer’s impact on society. But that is not what is meant by computer literacy. For computer literacy is not a form of literacy (读写能力) it is a trade skill that should not be taught as a liberal art.
Learning how to use a computer and learning how to program one are two distinct activities. A case might be made that the competent citizens of tomorrow should free themselves from their fear of computers. But this is quite different from saying that ail ought to know how to program one. Leave that to people who have chosen programming as a career. While programming
A. try to lay a solid foundation in computer science
B. be aware of how the things that they use do what they do
C. learn to use a computer by acquiring a certain set of skills
D. understand that programming a computer is more essential than repairing a car
John woke up in the middle of the night and saw something white (21) his garden. It seemed (22) towards the house.
"That (23) a thief !" he thought, and he took his gun and shot (24) him. Then he went back to bed, (25) he was too frightened (26) of the house in the dark.
The next morning John went out and saw one (27) his white shirts hanging (28) the clothes line in the garden. His wife (29) washed it the day before and (30) it out to dry. Now it had a bullet hole right through the middle of it.
"My God," said John, "I was lucky last night. If I had been wearing that shirt, the bullet would have killed me!"
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