So is the Net becoming more secure? Far from it. In the early days, when you visited a Web site your browser simply looked at the content. Now the Web is full of tiny programs that automatically download when you look at a Web page, and run on your own machine. These programs could, if their authors wished, do all kinds of nasty things to your computer.
At the same time, the Net is increasingly populated with spiders, worms, agents and other types of automated beasts designed to penetrate the sites and seek out and classify information. All these make wonderful tools for antisocial people who want to invade weak sites and cause damage.
But let's look on the bright side. Given the lack of locks, the Internet is surely the world's biggest (almost) crime-free society. Maybe that is because hackers are fundamentally honest. Or that there currently isn't much to steal. Or because vandalism ( 恶意破坏) isn't much fun unless you have a peculiar dislike for someone.
Whatever the reason, let's enjoy it while we can. But expect it all to change, and security to become the number one issue, when the most influential inhabitants of the Net are selling services they want to be paid for.
21. By saying "... owners of well over half of all World Wide Web sites have set up home without fitting locks to their doors" (Lines 3-4, Para. 2), the author means that _____.
A) those happy times appear still to be with us 干扰伎俩: 答非所问+偷换范围
B) there simply wasn't any crime to worry about 照抄原句 直接排除
C) many sites are not well-protected
D) hackers try out tricks on an Internet site without actually breaking in 偏离定位句子，偷梁换柱。
破解思路：答案推理需结合已通读部分(第一、二段首句)和文章主线(网络安全)。
对比喻的理解，找出本体和寓体，然后对照寓体的性质判断本体的性质。千万不能直接选择字面意思！
22. SATAN, a program designed by Dan Farmer can be used ____________.
A) to investigate the security of Internet sites
B) to improve the security of the Internet system
C) to prevent hackers from breaking into websites
D) to download useful programs and information
对原文内容进行两次定位，答案是对两处信息的概括 investigative和... try out...
23. Farmer's program has been criticized by the public because .
A) it causes damage to Net browsers
B) it can break into Internet sites
C) it can be used to cause disorder on all sites
D) it can be used by people with evil intent
publicly 勉强算作一个定位提示，criticism 是关键。问题设置常见方式：同义替换。
24. The author's attitude toward SATAN is _____.
A) enthusiastic B) critical C) positive D) indifferent
重要提示：表现作者态度的句子的特征
1. 直接陈述式(主语是事、物)。
2.使用评述性的副词在其他人的话里面。
3.他人的论述后面有连词引出另外一种说法，见第一条。
4.其他人的说法后面的括号里的内容。
态度题常见选项
arbitrary, concerned, critical, sarcastic, ironical, indifferent, sympathetic, enthusiastic, cautious, neutral, objective, subjective, optimistic, pessimistic, positive, negative, etc.
只作干扰选项的有arbitrary,
25. The author suggests in the last paragraph that .
A) we should make full use of the Internet before security measures are strengthened
B) we should alert the most influential businessmen to the importance of security
C) influential businessmen should give priority to the improvement of Net security
D) net inhabitants should not let security measures affect their joy of surfing the Internet
把握两个词：问题里的suggest, 原文里的expect的理解，必须结合主题.
提示：建议题(advise, advice; suggest, suggestion 等)，结论题，答案通常要从文章最后一句往前推，同时必须结合最后一段首句主旨句。
Passage II.
Crying is hardly an activity encouraged by society. Tears, be they of sorrow, anger, or joy, typically make Americans feel uncomfortable and embarrassed. The shedder of tears is likely to apologize, even when a devastating (毁灭性的) tragedy was the provocation. The observer of tears is likely to do everything possible to put an end to the emotional outpouring. But judging form recent studies of crying behavior, links between illness and crying and the chemical composition of tears , both those responses to tears are often inappropriate and may even be counterproductive.
......省略。
33."Counterproductive"(Para,1) very probably means"________".
A) having no effect at all
B) leading to tension
C) producing disastrous impact
D) harmful to health
注意！选项中程度极端的(如夸大后果的)，通常是错误选项。
34. What does the author say about crying?
A) It is a pointless physiological response to the environment.
B) It must have a role to play in man's survival.
C) It is meant to get attention and assistance.
D) It usually produces the desired effect.
开放性题目，如多项细节题，往往要多次快速定位。
Passage III.
关于本文的评论 (以下网友留言只代表其个人观点，不代表点点英语网的观点或立场)
