分析 因特网被建立于20世纪60年代.20世纪60年代的电脑网络并不好,如果网络中有一台计算机出现问题,整个网络就会崩溃.截止到20世纪90年代初期,科学家们编写了很多的软件,使得电脑更加便宜,更容易使用.
解答 61.F,推理判断题,文中提到"Many people are surprised when they find that the Internet was set up in the 1960s"因特网被建立于20世纪60年代,所以至今为止的历史可不止短短的30年,所以此题错误.
62.T,推理判断题,文中提到"Computer networks didn't work well.If one computer in the network broke down,then the whole network stopped"20世纪60年代的电脑网络并不好,如果网络中有一台计算机出现问题,整个网络就会崩溃,由此确定此题正确.
63.F,推理判断题,文中提到"Computer networks didn't work well"在20世纪60年代计算机网络工作效率不高,后面提到"So a new network system had to be set up"需要建立一套新的网络系统,由此确定建立新网络系统是为了解决系统效率低的问题,由此判断此题错误.
64.T,推理判断题,文中提到"By the start of the 1990s,computers became cheaper and easier to use.Scientists had also developed software that made"surfing"the Internet more convenient"截止到20世纪90年代初期,科学家们编写了很多的软件,使得电脑更加便宜,更容易使用,由此确定此题正确.
65.F,推理判断题,文中提到"Sending e-mail is more popular among students."发e-mail在学生之中很流行,但电脑并不是只能发e-mail,由此确定此题错误.
点评 对于判断对错题,一定要记得首先通读全文,了解文章大意,然后再根据文章关键词,关键句,掌握细节问题,并进行推理判断,再去回答具体的问题.
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