考研英语阅读unit-112832.pdf
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1、Unit 1 By reading we enrich the mind,by conversation we polish it.读书使人充实,交谈使人精明。学习内容 题 材 词 数 建议时间 得分统计 做题备忘 Part A Text 1 文化教育 462 /10 Text 2 科普知识 474 /10 Text 3 社会生活 445 /10 Text 4 商业经济 462 /10 Part B 文化教育 645 /10 Part C 社会生活 449 /10 Part A Directions:Read the following texts.Answer the questions b
2、low each text by choosing A,B,C or D.Text 1 Catneton Walker learned the hard way that sharing information online can have unintended conse-quences.In 2005,the sophomore at Fisher College in Boston organized a student petition dedicated to getting a campus police guard fired and posted it on the popu
3、lar college social network F.Walker wrote that the guard“loves to antagonize students.,and needs to be eliminated.”It was a poor choice of words.Another student informed school officials,who logged on and interpreted the comments as threatening.Though Walker claimed he was trying only to expose the
4、guards demeanor,he was expelled.Hes now enrolled at another college and admits he made a serious mistake.“I was a naive 21-year-old,”he says.Creating a page on a social-networking site is now a cherished form of self-expression at universities around the world.Students use ad-supported services like
5、 Facebook,MySpace,TagWorld and Bebo to make friends,plan their social lives and project their personalities.The most popular site among college students is Facebook,with more than 8 million members.A students personal Facebook page is usually a revealing,dynamic chronicle of campus lifeone clearly n
6、ot meant for the eyes of parents,teachers or anyone else older than 25.But adults are taking notice.Sites like Facebook are accessible to nearly anyone willing to spend the time to gain access:teachers,school administrators,even potential employers and the police.Such online services can create the
7、illusion of privacy where none actually exists.Facebook,in particular,was designed to emphasize privacy and intimacy.Only other users at your school(with the same college e-mail domain name),and those in networks you join,can see your home page.But determined off-campus visitors can persuade a stude
8、nt or alumnus to help them access the students page.What happens when the identity you reveal to friends suddenly overwhelms the facade you present to grown-ups?The results can be awkwardor worse.Photos from drunken parties,recollections of sexual escapades,or threatsall these indiscretions,posted o
9、nline,have gotten students suspended or expelled,or harmed job prospects.In a couple of decades,a presidential candidate may be called on to answer for a college misadventure that he or she impulsively detailed in a blog entry.Not all students want to temper their behavior.They point out that the In
10、ternet lets them express themselves and find like-minded souls.Still,adults arent likely to stop prying any time soon.That means students who use Facebook and MySpace have a new burden.The Web may seem ephemeral,but what you casually post one night might just last a digital eternity.While social net
11、working represents a powerful tool for todays students,theyre advised to be prudent.Even if they have no plans to run for president someday.1.Cameron Walker was dismissed because he A was caught posting threatening information online.B fighted with the campus police guard fiercely.C violated the rul
12、es when he created his own personal page.D he logged onto the schools official website without permission.2.What is the major problem with Facebook?A The information in it is shared too widely.B Teachers are allowed no access to it.C Its claimed privacy is only an illusion.D It annoys too many teach
13、ers and parents.3.Which of the following contents are you more likely to find at Facebook?A Virtuous conducts.B Pictures of drunken students.C Flattering language.D Lecture notes.4.Why do Students cherish the Internet?A They can practise their communicative skills.B They can communicate effectively
14、with teachers.C They can reveal their feelings freely.D They compete for leadership.5.Which of the following best summarizes the main idea of the text?A Creating personal web page is gaining popularity on campus.B Careless online postings can mean really big trouble to students.C Colleges take tough
15、 measures against invasion on personal privacy.D Undesirable online content should be made illegal and eliminated.Text 2 Up to now,the main impact of technological change has been on long-distance calls.In the United States,where four nationwide fiber networks have been built in a decade,long-distan
16、ce revenue per minute has halved during that period.Now other technologies are cutting the cost of the“local loop”the connection between the nearest exchange and the subscribers home.The connection is usually made with a twisted pair of copper wires,a technology unchanged for almost 120 years.As a r
17、ule of thumb,local distribution accounts for 80%of a net-works costs.Peter Huber,a telecoms specialist based in Washington,DC,reckons that it costs around$1,200$2,000 to connect a new customer with copper.Two less expensive and more flexible alternatives to copper have now become available.One is to
18、 run telephone services over the same system as cable television.A breakthrough in laser design in the late 1980s made it possible to send analogue television pictures along optical fibers.Since then cable systems,like telephone systems,have increasingly acquired backbones of optical fiber.Adding te
19、lephony to an existing cable system usually costs much less than extending the copper-wire network.The trouble is that a cable-television system,like a telephone network,involves high fixed costs and passes homes that do not want it,as well as homes that do;So building one from scratch(as in Britain
20、)is expensive.These problems are avoided by the other technological breakthrough:the use of wireless transmission.Its extraordinary flexibility and low cost will allow the development of a new kind of network or networks competing directly with fixed wires.“Wireless is the answer to the local monopo
21、ly,”says Robert Pepper,head of the office of plans and policy at the Federal Communications Commission(FCC)in the United States.“If local telecoms were to rebuild from scratch today,they would do so mostly with radio,at a cost of about$800 per subscriber,”says Peter Huber,Michael Kellogg and John Th
22、orne in”The Geodesic Net work II,”a 1993 review of competition in the industry in the United States.Mobile telephones will increasingly compete head-on with fixed systems.But the most important innovation is likely to be a digital wireless linked to a small fixed radio antenna in the home,which can
23、make extraordinarily efficient use of the radio spectrum;unlike a mobile phone,the antenna is always tuned precisely to the correct base station.Such systems of wireless local access are now being developed by several companies including Hughes in the United States and Ionica in Britain,but are not
24、yet in commercial use in OECD countries.Nevertheless,calculations by analysts,a British consultancy,bear out the enthusiasm of Mr.Huber and his colleagues for fixed wireless access as potentially the least expensive way to make the final link to the home.6.According to Para.2,which of the following
25、is true?A Fiber networks have been dramatically reduced.B Local calls are more expensive than long distance calls.C Fiber networks have brought about a reduction in costs for long-distance calls.D It is not so costly to connect a new customer with copper.7.One advantage of the wireless transmission
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