"I get at least one report a day that somebody was trying to get into my computer," he said. "The Net is a wonderful place, but it's also a dangerous one."

　　21. From the first paragraph, we know

　　[A] InfraGard is a protective measure aga/nst cybercrime.

　　[BI InfraGard is a measure of cooperation and collaboration.

　　[C] there will be 50 InfraGard chapters in all states.

　　[DJ private business and the government are now committing cybererime.

　　22. Each local chapter of InfraGard will be run by the following EXCEPT

　　[Al academic communities.

　　[B] public agencies.

　　[C] FBI.

　　[D] private industry.

　　23. By saying "too many corporations have made it too easy for criminals by sacrificing security for speed and accessibility" the author means

　　[A] too many corporations take no notice of the security problem of computers.

　　[B] criminals are sacrificing security for speed and accessibility.

　　[C] it's very easy to sacrifice security for speed and accessibility.

　　[D] many companies suffer from computer hacking because they value speed and accessibility more than security.

　　24. All the following are reasons for the rise in cybercrime EXCEPT

　　[A] victims won't report intrusions by hackers.

　　[B] vi victims have no fkewalls.

　　[C] the use of modem is increasing.

　　[D] companies don't pay enough attention to Security.

　　25. It can be concluded from the passage that

　　[A] not all hacking attempts are worthy of investigation.

　　[B] information of the victims is inaccessible.

　　[C] InfraGard chapters will be in effect by the end of September.

　　[D] Amazon.com was once disrupted by hacking.

　　Text 2

　　The annual Phi Delta Kappa/Gallup poll of attitudes towards public education releasedthis week found that a majorty of Americans feel t is important to put "a qualified,competent teacher in every classroom". Bob Chase, president of the National EducationAssociation (NEA), the main teachers' union, wasted no time in pointing out that this willrequire raising teachers' salaries so that more qualified candidates will enter the profession andstay there.

　　A study by two economists suggests that the quality of America's teachers has more to dowith how they are paid rather than how much. The pay of American public-school teachers isnot based on any measure of performance; instead, it is determined by a rigid formula based onexperience and years of schooling, factors massively unimportant in deciding how wellstudents do.

　　The uniform pay scale invites what economists call adverse selection. Since the mosttalented teachers are also likely to be good at other professions, they have a strong incentive toleave education for jobs in which pay is more closely linked to productivity. For dullards, theincentives are just the opposite.

　　The data are striking: when test scores are used as a proxy for ability, the brightestindividuals shun the teaching profession at every juncture. Clever students are the least likelyto choose education as a major at university. Among students who do major in education, those with higher test scores are less likely to become teachers. And among individuals who enterteaching, those with the highest test scores are the most likely to leave the profession early.