【英语卷(解析)·2015届河北省衡水中学高三小一调考试（201408）扫描版】完形填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，掌握其大意，从每题所给的ABCD四个选项，选出最佳选项，并在答题卡上将该项涂黑。
In the 1450s Johannes Gutenberg, a Gennan printer, developed a new printing press(印刷机)。Then single letters could be __41____ in lines to create a page of text. The letters were made of metal.Each one could be ___42___ to different parts of the press,depending on which words were___43____ on a certain page. This was one of the most important ___44_____ in the history of pringting.
___45____, most books had been created by copying out text by hand. The__46__of a single book would take many hours or even days. With the Gutenberg press, ___47___ could be printted in several seconds, and many copies of books could be created in a few hours.
Gutenberg's printing press was not so much an i___48____, however, as an improvement of developing
