四六级

　　写作一直是英语六级考试的重头戏，很多考生可以做对阅读题，但却写不出通顺没有语病的句子。那么，考生应该怎么复习英语六级作文呢?最简单有效的方法就是背成篇的阅读，通过背诵提升自己的单词储备，写句子的能力，可以在考试中直接写出成型的句子。文都小编为大家整理了一些优秀的作文，考生可以背诵下来。

　　The Brain and the Computer

　　Some recent developments in the computer industry make scientists predict that the gap between human beings and machines will be closed about the year 20000.

　　To understand the significance of this prediction let us compare the human brain with existing computers. The brain consumes electrical energy at the rate of 25 watts and occupies a volume of one tenth of a cubic foot. The brain houses between 10 billion and 100 billion items of information. Every brain cell is directly connected to many other cells. As a result， the cells in which information is stored can communicate with thousands of other cells.

　　However， the computer consumes 1000，000 watts of electrical power and occupies hundreds of cubic feet of space. Its million items of immediately accessible information. In contrast， the computer memory is like a cell of pigeonholes， with no thinking capacity and no connections elsewhere.

　　In a word， the electronic brains are hopelessly inadequate in comparison with the human brains.

　　以上是小编为大家介绍的相关信息，希望对考生的英语学习有所帮助，还需要了解更多四六级考试咨询的，可点击四六级考试资讯站!