People tend to think of computers as isolated machines, working away all by themselves. Some do-personal computer without an outside link, like someones hideaway cabin in the woods. But just as most of homes are tied to a community by streets, bus routes and electric lines, computers that exchange intelligence are part of a community m local, national and even global network joined by telephone connections. Hacking, our electronic-age term for computer break-in, is more and more in the news-brainy kids vandalizing university records, even pranking about in supposedly safeguarded systems. To those who understand how computer networks are increasingly regulating life in the late 20th century, these are not laughing matters. A potential for disaster is building: A dissatisfied former insurance-company employee wipes out information from payroll files. A student sends out a virus, a secret and destructive command, over a national network. The virus copies itself at lightning speed, jamming the entire network thousands of academic, commercial and government computer systems. Such disastrous cases have already occurred. Now exists the possibility of terrorism by computer. Spoiling a system responsible for air-traffic control at a busy airport, or knocking out the telephones of a major city, is a relatively easy way to spread panic. Yet neither business nor government has done enough to toughen its defenses against attack. For one thing, such defenses are expensive; for another, they may interrupt communication the main reason for using computers in the first place. A to show that a hacker is more dangerous than a thief. C to demand that a protective computer system should be set up against thieves. 37 The word vandalizing in Line 17 means B creating. D updating, A Hacking is also known as computer break-in. C Hacking is a widespread concern. 39 Which of the following is NOT mentioned in the passage as an instance of attack by a hacker? B Shutting down the computer whenever he wishes. D Spoiling a system for air traffic. A it will cause fear among the public. C tough measures are illegal. 【参考答案】36. A37. C38. B39. C40. D
高中英语语法-WTO 用语翻译
高中英语语法-小窥“be to do” 的用法
高中英语语法-习惯用语英语新译(一)
高中英语语法-感恩节英语词汇
高中英语语法-趣味谚语的中英文两译
高中英语语法-“玩水”玩出的的英文表达
高中英语语法-“追捕”怎么说?
高中英语语法-Greek gift 别有用心的礼物
高中英语语法-部分国家及城市的英语雅称
高中英语语法-韦氏词典新增热词趣解
高中英语语法-英语单词常见词根总结
高中英语语法-“车载蓄电池”怎么说?
高中英语语法-“善后”的表达法
高中英语语法-英语“警察”的不同说法
高中英语语法-dead cat bounce 可怕的“死猫反弹”
高中英语语法-“三十六计”英文表达方法
高中英语语法-“满身铜臭”怎么说?
高中英语语法-如何表达“郁积的愤懑”?
高中英语语法-一些专有词汇的翻译
高中英语语法-中英文互译:Mares nest
高中英语语法-sewage treatment 污水治理
高中英语语法-“不良贷款”如何说?
高中英语语法-The third wheel 电灯泡
高中英语语法-冷酷“杀手”怎么说
高中英语语法-Cold turkey 突然完全戒毒
高中英语语法-如何表达“全盛时期”?
高中英语语法-习惯用语英语新译(三)
高中英语语法-应准确翻译“和平崛起”
高中英语语法-时尚新词新解“搭讪女生”
高中英语语法-中国麻将英语词汇
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |