Unit 15: Computers - Read

Exercise 1: Choose the word (a, b, c, or d) that best fits each of the blank spaces. Computers are very (1)____, but they also can (2) _____ problems. One kind of problem is with the computer’s memory. It is not perfect, so (3) ____ computers lose (4)______information. (5)_____ problem is with the machinery. Computers are machines, and (6)_____can break down. When computers break down, they (7)______erase information, like chalk on a blackboard. Or they may stop doing anything at all. And there is another different kind of problem with computers. Some doctors say they may be bad for your (8)_____. They say you should computers all day.

Exercise 2: Read the following passage and choose the item (a, b, c, or d) that best answers each of the questions about it. The first computers were very large machines. Now computers come in all shapes and sizes. There were still big computers for companies or universities. There are other special computers for factories. These large computers tell the factory machines what to do. But there are also small personal computers to use at home or in an office. There are even computers in telephones, television sets, and cars. These computers have to be very small. They are so small you cannot even see all their parts.