全新版大学英语综合教程2 unit 4 (自己精心制作)

1、Unit Four,The Virtual World,Can you guess the meaning of SOHO in information technology?,SOHO - Small-Office/Home-Office These people neednt go to the office every day. They work at home without worrying about their dress and the strict rules of the company. The term “virtual office” is sometimes used as a synonym.,What kind of people do you think belong to the group of SOHO?,Writers, program designers, ad-agents, etc.,Can you recognize the following expressions?,U.2 Y? I.1.2.C.U R.U.O.K.? I.O.U

2、. I.1.T,Extra information popular vocabulary related to network,上网 网吧 网民 网友 网恋,Get online, cyber surfing, surf the net,Cyber cafe, Internet caf, Net bar,Netizen (net citizen), cyber citizen,Cyber friend /buddy,Cyber love (affair),Cyber slacker : 喜欢在上班的时候使用工作单位的网络做一些私人的事情 Cybertourist: 平常没有时间上网，只有在节假日的时候上网玩玩 Newbie:网络新手 Net. God (Net dot god): 网络大虾，对internet特别轻车熟路的人 Hacker: 黑客 Flamer:有一些人则常常在BBS，Newsgroup或Email里发送一些招人讨厌的图片或文件,Spam，UCE (Unsolicited Commercial Email) Junk Email: 垃圾邮件 Network pirate

3、: 通过局域网(LAN: Local Area Network)骚扰同 学、同事、朋友 Digital plagiarism: 抄袭别人的网页上的内容 网络犯罪(Internet Crimes) :包括利用互联网监视他人的活动 诈骗 (Cyberfraud) 偷取信用卡 (Credit card theft) 偷取身份 (Identity theft),Pre-Reading Task,1. What was the hero doing when his boss came in? surfing the Internet 2. How did he act in front of his boss? He pretended to be surprised at the computer which had crashed “unexpectedly”.,Cultural Notes,The Internet & The First Computer,What better way to practice math skills Than with an abacus! Still

4、 used today, the abacus is as fast as calculators. A great mental workout for kids and adults. Our abacus is made to be used everyday in Asia at home, school, or office. Approx. 13“ long, made of plastic For durability.,The Worlds First Computer: Abacus,Inventor of the Modern Computer,Konrad Zuse in Germany develops the first programmable calculator using binary numbers and boolean logic. 德国康拉德祖萨开发第一台采用二进制和布尔逻辑的可编程计算机,Konrad Zuses Z1 Circa 1938,The Harvard MARK I Computer - Howard Aiken and Grac

5、e Hopper, 1944,A New Type of Computer,The Internet is changing our lives and a parallel universe is rapidly emerging online.,Today theres scarcely an aspect of our life that isnt being upended by the torrent of information available on the hundreds of millions of sites crowding the Internet, not to mention its ability to keep us in constant touch with each other via electronic mail.,The Internet is saving Companies billions of dollars in producing goods and serving the needs of their customers.,

6、The Internet and e-commerce are viewed as a global mega-trend along the lines of the printing press, the telephone, the computer and the electricity. (a megawatt, a megabyte).,You would be hard pressed to name something that isnt available on the Internet. Consider: books, health, movie tickets, baby clothes, stocks, real estate, toys and airline tickets.,Some Popular TV Companies in U.S.A.,Cable News Network,Cable News Network (CNN) is a U.S. cable news channel founded in 1980 by Ted Turner. Up

7、on its launch, CNN was the first channel to provide 24-hour television newscoverage, and the first all-news television channel in the United States. While the news channel has numerous affiliates, CNN primarily broadcasts from its headquarters at the CNN Center in Atlanta, the Time Warner Center in New York City, and studios in Washington, D.C., and Los Angeles. CNN is owned by parent company Time Warner, and the U.S. news channel is a division of the Turner Broadcasting System.,CNN is sometimes

8、 referred to as CNN/U.S. to distinguish the American channel from its international counterpart, CNN International. As of August 2010, CNN is available in over 100 million U.S. households. Broadcast coverage extends to over 890,000 American hotel rooms, and the U.S broadcast is also shown in Canada. Globally, CNN programming airs through CNN International, which can be seen by viewers in over 212 countries and territories. Starting late 2010, the domestic version CNN/U.S., is available in high d

9、efinition to viewers in Japan under the name CNN HD.,The National Broadcasting Company (1940),Cultural Notes,NBC (the National Broadcasting Company): the first of the original three US national broadcasting companies. It was established in 1926 by Radio Corporation of America as two groups of radio stations. The first NBC television channel opened in 1940. The company is now owned by General Electric. Its main offices are at Rockefeller Center in New York.,The Public Broadcasting Service,Cultural Notes,PBS (the Public Broadcasting Service): (in the US) a television system that broadcasts programs to an association of local stations which use no television advertisements and do not make a profit. It was established by the Public Broadcasting Act and is supported by money from the US Government, large companies and the public. PBS is known for the high quality of its programs.,The American Broadcasting Company,Cultural Notes,ABC (the American Broadcas

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