考研英语 学英语,练听力,上听力课堂! 注册 登录
> 考研英语 > 考研英语阅读 >  内容

《考研英语阅读理解100篇 基础版》第3章 信息技术类 Unit 34






It is a devastating prospect.Terrorists electronically break into the computers that control the water supply of a large American city,open and close valves to contaminate the water with untreated sewage or toxic chemicals,and then release it in a devastating flood.As the emergency services struggle to respond,the terrorists strike again,shutting down the telephone network and electrical power grid with just a few mouse clicks.Businesses are paralysed,hospitals are overwhelmed and roads are gridlocked as people try to flee. 
This kind of scenario is invoked by doom-mongers who insist that stepping up physical security since the September 11th attacks is not enough.Road-blocks and soldiers around power stations cannot prevent digital terrorism.“Until we secure our cyber-infrastructure,a few keystrokes and an Internet connection is all one needs to disable the economy and endanger lives,” Lamar Smith,a Texas congressman,told a judiciary committee in February.He ended with his catchphrase:“A mouse can be just as dangerous as a bullet or a bomb.” Is he right? 
It is true that utility companies and other operators of critical infrastructure are increasingly connected to the Internet.But just because an electricity company's customers can pay their bills online,it does not necessarily follow that the company's critical control systems are vulnerable to attack.Control systems are usually kept entirely separate from other systems,for good reason.They tend to be obscure,old-fashioned systems that are incompatible with Internet technology anyhow.Even authorised users require specialist knowledge to operate them.And telecoms firms,hospitals and businesses usually have contingency plans to deal with power failures or flooding. 
A simulation carried out in August by the United States Naval War College in conjunction with Gartner,a consultancy,concluded that an“electronic Pearl Harbour” attack on America's critical infrastructure could indeed cause serious disruption,but would first need five years of preparation and $200m of funding.There are far simpler and less costly ways to attack critical infrastructure,from hoax phone calls to truck bombs and hijacked airliners. 
On September 18th Richard Clarke,America's cyber-security tsar,unveiled his long-awaited blueprint for securing critical infrastructure from digital attacks.It was a bit of a damp squib,making no firm recommendations and proposing no new regulation or legislation.But its lily-livered approach might,in fact,be the right one.When a risk has been overstated,inaction may be the best policy. 
It is difficult to avoid comparisons with the“millennium bug” and the predictions of widespread computer chaos arising from the change of date to the year 2000.Then,as now,the alarm was sounded by technology vendors and consultants,who stood to gain from scare-mongering.But Ross Anderson,a computer scientist at Cambridge University,prefers to draw an analogy with the environmental lobby.Like eco-warriors,he observes,those in the security industry—be they vendors trying to boost sales,academics chasing grants,or politicians looking for bigger budgets—have a built-in incentive to overstate the risks. 
注(2):本文习题命题模仿对象:第1、5题模仿2015年真题Text 3第1题,第2题模仿2010年真题Text 3第1题,第3题模仿2011年真题Text 4第1题,第4题模仿2001年真题Text 5第3题。 
1.We learn from the first paragraph that ______. 
A) terrorists could plunge a large American city into chaos through electronic attack 
B) American people have no experience in dealing with terrorists 
C) the computer systems of utility companies are rather vulnerable 
D) the response from emergency services is far from satisfactory 
2.Speaking of the doom-mongers,the author implies that ______. 
A) their worries are quite reasonable 
B) their warnings should be taken seriously 
C) they exaggerate the threat utility companies are facing 
D) they are familiar with the way terrorists strike 
3.In the view of Gartner consultant,______. 
A) terrorists may launch another“Pearl Harbor” attack 
B) terrorists have ample capital and time to prepare a stunning strike 
C) it is very costly and time-consuming to attack critical infrastructure 
D) it is unlikely that terrorists would resort to electronic means to attack critical infrastructure 
4.“Lily-livered approach”(Line 3,Paragraph 5)probably means an approach characterized by ______. 
A) flexibility 
B) boldness 
C) cowardice 
D) conservatism 
5.We learn from the last paragraph that ______. 
A) the computer industry suffered heavy loss due to the“millennium bug” 
B) doom-mongers care more about their own interests than national security 
C) computer scientists have better judgment than doom-mongers 
D) environmentalists are criticized for their efforts of protecting environment 


疯狂英语 英语语法 新概念英语 走遍美国 四级听力 英语音标 英语入门 发音 美语 四级 新东方 七年级 赖世雄 zero是什么意思

  • 频道推荐
  • |
  • 全站推荐
  • 广播听力
  • |
  • 推荐下载
  • 网站推荐