Whats the main idea of this passage? A.Police are making use of the Internet to maintain good public order. B.Students should learn to protect their privacy online. C.Social networking websites have bad influence on high school students. D.Parents should take control of what their children are doing online.
A.Police B. B.Students C. C.Social D. D.Parents E.
【参考答案】
A 主旨大意题。通读全文后就会发现,虽然本文提到过家长、雇主和大学对于网络的监控,但主要内容还是在讲警察通过对高中生常用的网站的监视,得到有用的信息,从而能够预防和制止犯罪的发生,因此[A]“警察在利用网络维护社会治安”与原文大意最为一致。虽然本文在第四段提到学生如果不想让警察知道自己的谈话......