We are all busy talking about and using the Internet (互联网), but how many of us know the h 【小题1】 of the Internet?
Many people are surprised when they find that the I 【小题2】_ was set up in the 1960s. At that time, puters were large and e 【小题3】 . Computer networks (网络) didn't work well. If one puter in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good e 【小题4】 to be used by many different puters. If part of the network was not working, information could be sent through a 【小题5】_ part. In this way puter network system would keep on w 【小题6】 all the time.
At f_【小题7】_ the Internet was only used by the government, but, in the early 1970s, universities, hospitals and banks were allowed to use it too. H【小题8】 , puters were still very expensive and the Internet was d 【小题9】 to use. By the start of the 1990s, c 【小题10】_ became cheaper and easier to use. Scientists had also developed software that made 'surfing' (浏览) the Internet more convenient.
Today it is easy to get on-line (上网) and it is said that m 【小题11】 of people use the Internet everyday. Sending e-mail is more and more p 【小题12】 among students.
The Internet has now bee one of the most important parts of people's life.History
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(答案→)History
解析：
【小题1】此题考查名词，根据语境可知很多人都不了解互联网的历史故填history。
【小题2】此题考查名词，根据语境可知互联网在20世纪60年代建立的，故填Internet。
【小题3】此题考查形容词，根据语境可知在那个时候电脑又大又贵，故填expensive。
【小题4】此题考查副词，根据语境可知互联网必须足够好才能使每台电脑正常工作，故填enough。
【小题5】此题考查不定代词，another表示另一部分。
【小题6】此题考查固定短语keep on doing sth表示一直做某事，故填working，意思是网络系统必须一直工作。
【小题7】此题考查固定短语at first表示起初，开始。起初电脑只是政府部门使用。
【小题8】此题考查连词，表示转折，故用however。
【小题9】此题考查形容词，根据语境可知当时的网络很难利用，故填difficult。
【小题10】此题考查名词，根据语境可知到了20世纪90年代电脑变小了，故填puter。
【小题11】此题考查形容词，表示很多人在利用网络，故用millions或most
【小题12】此题考查形容词，利用网络发电子邮件越来越流行，故填popular。