题型：语法填空（语篇） 题类：常考题 难易度：困难
人教版（新课程标准）高中英语必修2 Unit 3同步练习一
Now, I'd like to tell you about the development of computers. Computers began a calculating machine in France in 1642, it could (simple) difficult sums. In 1936, Alan Turing wrote a book about how a computer could be made to work as a "universal Machine" (solve) any difficult mathematical problem. By the 1940s, computers had grown as large as a room. As time went by, they were made (small). Since the 1970s computers (use) in offices and homes, first as personal computers and then as laptops.
As computers' memory improved, computers became much smaller and more (intelligence). First the memory was stored in tubes, then on transistors and later on very small chips. Over time computer's memory (develop) so much that computers remember everything they have been told. In the early 1960s computers could be connected to each other by the network (call) the World Wide Web.
Many new (apply) have been found for computers since the1970s. They have been used in communication, finance, trade, robots, mobile phones, space rockets and so the goal of computers is to provide humans a life of high quality.
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