Question

阅读理解 　　Until recently the chances for criminal activity(犯罪活动)on the Internet have been low．However, business done on the Internet is growing rapidly, as people order books and other products and make money transactions(交易)．All this is a strong temptation(诱惑)for hackers． 　　Hackers are often young people who are deeply attractedby computers．They use them to prowl the Internet, looking for ways to break into computer systems(系统)run by banks, telephone companies and even government departments．They look for examples of credit cards(信用卡)and try to steal the numbers． 　　Recently in America, hackers have been caught testing the security(安全)system at the Pentagon, headquarter(总部)of the American Defence Department．But still the backers insist often for a dare “because it’s there” although with what success nobody really knows． 　　Hackers seldom admit to(享有)a successful break in．The first sign of a security breach(泄密)may be when a customer discovers fraudulent(欺骗)money transaction on a credit card account(账户), and it is hard to discover it． 　　“You just don’t give your credit card out to anybody, ”says Michael White, multimedia product manager for clear communications, “and in the same way you should regularly change your credit card entering number, you can defeat hackers by regularly changing your　Internet password(密码)．If you don’t, it’s like leaving the bank vault(金库)door wide open．” 　　The warning against hackers is out there, and the answer is obviously to choose tricky passwords and change them frequently and to watch who you pass your credit card details to． (1) We can learn from the text that hackers _________． [　　] A． are computer fans and play tricks on people on the Internet B． steal only credit cards on the Internet C． are mostly young computer fans D． regularly attack the computer systems (2) “Prowl” used in the second paragraph means _________． [　　] A． move quietly B． destroy C． get information D． rebuild (3) Hackers seldom admit to a successful break in because _________． [　　] A． they are not easily caught by policemen B． they regularly change their Internet password C． it’s hard for them to get the information of the credit card account D． they can’t easily get the customers’ Internet passwords

Answer 1

答案：1．C;2．A;3．D;
解析：

(1)	细节题。从第二段首句“Hackers are often young people who are deeply attracted by computers．”得知答案。
(2)	从“They look for examples of credit cards and try to steal the numbers．”我们得知，这些“黑客”并非想毁掉或重建计算机，因此，B、D两项不合题意。在此C项有较大干扰性，在此分析“looking for ways to break into computer systems run by banks”在句中的作用对选择答案极有影响，在此分词短语作伴随状语，修饰prowl, 因此我们可以推断prowl在这里的意思是“潜入”。
(3)	从后文“…you can defeat hackers by regularly changing your Internet password”，我们可以推断，“黑客”是靠破译因特网上的密码进入的，然而是不容易破译的，因此D项为最佳答案。