大學英語晚聽教程（下冊）

內(nèi)容概要

　　《大學英語晚聽教程(上冊)》由20個單元組成，每個單元分為4個部分：第一部分：8個短對話和2個長對話；第二部分：3篇短文；第三部分：2篇復合式聽寫。

書籍目錄

試題部分
Unit 1
　Monday
　Tuesday
　Wednesday
　Thursday
Unit 2
　Monday
　Tuesday
　Wednesday
　Thursday
Unit 3
　Monday
　Tuesday
　Wednesday
　Thursday
Unit 4
　Monday
　Tuesday
　Wednesday
　Thursday
Unit 5
　Monday
　Tuesday
　Wednesday
　Thursday
Unit 6
　Monday
　Tuesday
　Wednesday
　Thursday
Unit 7
　Monday
　Tuesday
　Wednesday
　Thursday
Unit 8
　Monday
　Tuesday
　Wednesday
　Thursday
Unit 9
　Monday
　Tuesday
　Wednesday
　Thursday
Unit 10
　Monday
　Tuesday
　Wednesday
　Thursday
參考答案及錄音材料

章節(jié)摘錄

　　In a relatively short span of twenty-five years, there has been an incredible evolution inthe size and capabilities of computers. Today, computers smaller than the tips of yourfingernail have the same capacities as the room-sized machines of twenty five years ago. Thefirst computers were developed around 1945. They were so large that they required specialair-conditioned rooms. About twenty years later, in the 1960s, desk-sized computers weredeveloped. This represented an enormous advance. Before the end of that same decade,however, the third generation of computers, which used simple integrated circuits and whichwere even smaller and faster, had appeared. In 1971, the first microprocessor, less than onesquare centimeter in size, was developed. Today, electronic engineers predict that even smallerand more advanced computer will be on the market before the end of this decade.　　16. When were the first computers developed？　　17. When were the desk-sized computers developed？　　18. When was the first microprocessor developed？ 　　……

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