大学英语CET4阅读难点训练材料.docx
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1、 大学英语CET4阅读难点训练材料 Imagine you went to a restaurant with a date; had a burger, paid with a credit card, and left. The next time you go there, the waiter or waitress, armed with your profile data, greets you with, Hey Joe, how are you? Mary is over there in the seat you sat in last time. Would you lik
2、e to join her for dinner again? Then you find out that your burger has been cooked and your drink is on the table. Forget the fact that you are with another date and are on a diet that doesnt include burgers. Sound a little bizarre? To some, this is restaurant equivalent of the Internet.The Nets abi
3、lity to profile you through your visits to and interactions at websites provides marketers with an enormous amount of data on yousome of which you may notwant them to have. Are you aware that almost every time you access a website you get a “cookie”? Unfortunately, its not the Mrs. Reids type. A coo
4、kie on the Internet is a computer code sent by the site to your computerusually without your knowledge. During the entire period of time that you are at the site, the cookie is collecting information about your interaction, including where you visit, how long you stay there, how frequently you retur
5、n to certain pages, and even your electronic address. Fill out a survey to collect free information or samples, and marketers know even more about youlike your name, address, and any other information you provide. While this may sound scary enough, cookies arent even the latest in technology. A new
6、system called I-librarian Alexanamed for the legendary third century B.C. library in Alexandria, Egyptdoes even more. While cookies track what you are doing at one site, Alexa collects data on all your Web activity, such as which sites you visit next, how long you stay there, whether you click on ad
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