四级练习2012.06.07
[audio]http://sound.yywz123.com/tingbbs/cet4/cet4620120607.mp3[/audio]Internet has penetrated into all the aspects of our life and work. We can study and work by it. We can find a job by it. We can communicate by it. We can entertain by it. We can buy and sell by it. and almost anywhere, anytime.
However, at the same time Internet provides services for us, it is inevitably invading our privacy to some degree. The services on most websites require our registry. If we want to enjoy these services, we have to provide much private much private information, including our names, genre, address, telephone number and sometimes bank accounts. Due to the poor Internet administration and weak network security, (2)__________________stolen or sold. Even sometimes the information will be misused by the criminals.
Considering the above mentioned, we must enhance the alertness when using the Internet. First, when we need Internet service, we should always log on those big legal websites. Second, if the service (3)___________________ you should think twice before you type in it.
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