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标题: 四级练习2012.09.09 [打印本页]

作者: Rebecca949    时间: 2012-9-10 12:19     标题: 四级练习2012.09.09

[audio]http://sound.yywz123.com/tingbbs/cet4/cet420120909.mp3[/audio]



Human beings are never satisfied.(1)________________.Human history is the history of inventions.An invention is something totally original,something that nobody else has thought of.It may be something physical,like a new machine,or it may be a new way of doing something,(2)_______________.The earliset inventions,like boats and weapons,were simple but effective ways of meeting basic need and were developed independently by people in different parts of the world who needed to travel or to hunt.(3)_____________________.If you come up with an original idea,the first thing to do is to register your invention at the Patent Office.It will be given a special number,which acts as a guarantee against anyone else stealing your idea.




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作者: 545    时间: 2012-9-11 06:46

1 They have always wanted the things to be easier, faster, more comfortable or more convenient   
2  like the reorganization of production methods in a factory
3 Modern inventions are more technical and more specialized
作者: zhant220    时间: 2012-9-12 19:22

1. They have always wanted the things to be easier, faster, more comfortable or more convenient   
2. like the reorganization of production methods in a factory
3. Modern inventions are more technical and more specialized




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