题目内容

用方框中所给词填空。

  Many people are surprised when they find the Internet(因特网)was(1)________ up in the 1960s.At that time, computers were large and expensive.Computer networks(网络)didn't work well.If one computer in the network(2)________ down, then the whole network stopped.So a new network(3)________ had to be set up.It should be good enough to be used by many different computers.If a part of the network was not working,(4)________ could be sent through another part.In this way computer network system would(5)________ on working all the time.

  At first the Internet was only used by the government, but in the early 1970s, universities(大学), hospitals and banks were(6)________ to use it too.However, computers were still very expensive and the Internet was difficult to use.By the start of the 1990s, computers became(7)________ and easier to use.

  Today it is easy to get on-line(上网)and it is said that(8)________ of people use the Internet every day.Sending e-mail is more and more popular(9)________ students.

  The Internet has now become one of the most(10)________ parts of people's life.

答案:
解析:

1.set 2.broke 3.system 4.information 5.keep 6.allowed 7.cheaper 8.millions 9.among 10.important


练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网