【白洁2005】专项突破听力文本1C-1

======== TEST 1 PART C 11-13 ========

11.Which of the following is true ahout Internet according to the talk?
[A] The Internet is different from television in that it's more convenient.
[B] The [nternet may greatly affect the ways of college education and business.
[C] The lnternet is the cheapest way of communicating with other people.
[D] The Internet is composed of many computers.

12.What is the most common type of computer network used in companies?
[A] The databases 1 of information.
[B] The public access networks.
[C] The supercomputer networks.
[D] Intranets,

13.According to the talk, the Internet has grown in
[A] the amount of information available on it.
[B] the number of internee societies.
[C] the profit it makes,
[D] the number of networks.

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Good morning, everyone. Today I'll talk about the Internet. The Internet is a com- puter-based worldwide information network. The Internet is composed of a large num- ber of smaller interconnected networks called internets, These internets may connect tens, hundreds, or thousands of computers, enabling them to share information with each other and to share various resources, such as powerful supereomputers and datahases of information. The Internet has made it possible for people over the world to effectively and inexpensively eommunicate with each other. Unlike traditional broadeasting media, such as radio and televisinn, the Internet is a decentralized system. Each connected individual can communicate with anyone else on the Internet, can publish ide- as, and can sell products with a minimum overhead cost. In the future, '.he Internet may have a dramatic impact on higher education and business as more universities offer cour- ses and more companies offer goods and services online.

The internets from which the Internet is composed are usualty public access net- works, meaning that the resources of the network can be shared with anyone logging onto, or accessing the network. Other types of internets, called intranets, are closed to public use. lntranets are the most common type of computer network used in cornpanie~ and organizations where it is important to restriet access to the information contained on the network.

During the I990s, the Internet has grown tremendously in the number of people using it and the amount of information contained on it. According to the Internet Society, a non-proflt society that studies and promotes the use of the Internet, 134 countries had full lnternet connection and an additional 52 countries had limited access ( for example. email only) in 1996. Some surveys found that as of September 1997 there were between 53 and 57 million users of the lnternet worldwide.