阅读理解
Passage One
We are all busy talking about and using the Internet, but how many of us know the history of the Internet?
Many people are surprised when they find that the Internet was set up as recently as the 1960s. At that time, computers were large and expensive. Computer networks didn’t work well. If one computer in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information could be sen through another part. In this way the computer network system would keep on working all the time.
At first the Internet was only used by the government, but in the 1970s, universities, hospitals and banks began to use it, too. However, computers were still very expensive and the Internet was difficult to use. At the beginning of the 1990s, computers became cheaper and easier to use. And scientists developed software that made Internet “surfing” more convenient.
Today it is easy to get online and it is said that millions of people use the Internet every day.
【答案解析】[解析] 第三段。
细节判断题。A选项文章根本未提到。根据第二段第二句和第三段第二、三句的内容可知:过去计算机造价昂贵,直到20世纪90年代初才变得便宜多了,故B错误;从第三段一、二句可知D选项后半句内容正确,而前半句内容“the Internet was easy to use”与原文意思相反,故D错误,用排除法选C。
单选题
The best title for the passage is _________.
【正确答案】
C
【答案解析】[解析] 文章第一段“We are all busy talking...know the history of the Internet?”。
主旨概括题。一般文章开头会点明主题,从首段可知,本文主要讲了网络的发展史。故C正确。