单选题{{B}}Text 3{{/B}} The first big-name hackers include Steve Wozniak, Bill Gates and Linus Torvalds, all now highly recognisable names behind many of the computer technologies used today. These early hackers had a love of technology and a compelling need to know how it all worked, and their goal was to push programs beyond what they were designed to do. Back then, the word "hacker" didn't have the negative connotation it has today. The original backer ethic, rooted out of simple curiosity and a need to be challenged, appears to be dead. The objectives of early hackers are a far cry from the goals of today's hacker. The motivation of the new breed of hackers appears not to be curiosity, or a hunger for knowledge, as it used to be. Instead, most of today's hackers are driven by greed, power, revenge, or some other malicious intent, treating hacking as a game or sport, employing the tools that are readily available via the Internet. The rate of security attacks is actually outpacing the growth of the Internet. This means that something besides the growth of the Internet is driving the rise in security attacks. Here are some realities you should know about: Operating systems and applications will never be secure. New vulnerabilities will-be introduced into your environment every day. Even if you ever do get one operating system secure, there will be new operating systems with new vulnerabilities—phones, wireless devices, and network appliances. Employees will never keep up with security polices and awareness. It doesn't matter how much you train and educate your employees. If your employees disregard warnings about the hazards of opening questionable email attachments, how are you going to educate them about properly configuring firewalls and intrusion detection systems for their PCs? Managers have more responsibility than ever. And on top of the realities listed above, security managers are being asked to support increasing degrees of network availability and access. There are some good security measures you can take: Employ a layer 7, full-inspection firewall. Automatically update your anti-virus at the gateway, server and client. Keep all of your systems and applications updated. Hackers commonly break into a Web site through known security holes, so make sure your servers and applications are patched and up to date. Turn off unnecessary network services. Eliminate all unneeded programs. Scan your network for common backdoor services, and use intrusion detection systems, vulnerability scans, and anti-virus protection.

单选题In her novel of "Reunion, American Style" , Rona Jaffe suggests that a class reunion "is more than a sentimental journey. It is also a way of answering the question that lies at the back of nearly all our minds. Did they do better than I?" Jaffes observation may be misplaced but not completely lost. According to a study conducted by social psychologist Jack Sparacino, the overwhelming majority who attend reunions aren't there invidiously to compare their recent accomplishments with those of their former classmates. Instead, they hope, primarily, to relive their earlier successes. Certainly, a few return to show their former classmates how well they have done; others enjoy observing the changes that have occurred in their classmates(not always in themselves, of course). But the majority who attend their class reunions do so to relive the good times they remember having when they were younger. In his study, Sparacino found that, as high school students, attendees had been more popular, more often regarded as attractive, and more involved in extracurricular activities than those classmates who chose not to attend. For those who turned up at their reunions, then, the old times were also the good times! It would appear that Americans have a special fondness for reunions, judging by their prevalence. Major league baseball players, fraternity members, veterans groups, high school and college graduates, and former Boy Scouts all hold reunions on a regular basis. In addition, family reunions frequently attract blood relatives from faraway places who spend considerable money and time to reunite. Actually, in their affection for reuniting with friends, family or colleagues, Americans are probably no different from any other people, except that Americans have created a mind-boggling number and variety of institutionalized forms of gatherings to facilitate the satisfaction of this desire. Indeed, reunions have increasingly become formal events that are organized on a regular basis and, in the process, they have also become big business. Shell Norris of Class Reunion, Inc. , says that Chicago alone has 1, 500 high school reunions each year. A conservative estimate on the national level would be 10,000 annually. At one time, all high school reunions were organized by volunteers, usually female homemakers. In the last few years, however, as more and more women have entered the labour force, alumni reunions are increasingly being planned by specialized companies rather than by part-time volunteers. The first college reunion was held by the alumni of Yale University in 1792. Graduates of Pennsylvania, Princeton, Stanford, and Brown followed suit. And by the end of the 19th century, most 4-year institutions were holding alumni reunions. The variety of college reunions is impressive. At Princeton, alumni parade through the town wearing their class uniforms and singing their alma mater. At Marietta College, they gather for a dinner-dance on a steamship cruising the Ohio River. Clearly, the thought of cruising on a steamship or marching through the streets is usually not, by itself, sufficient reason for large numbers of alumni to return to campus. Alumni who decide to attend their reunions share a common identity based on the years they spent together as undergraduates. For this reason, universities that somehow establish a common bond — for example, because they are relatively small or especially prestigious — tend to draw substantial numbers of their alumni to reunions. In an effort to enhance this common identity, larger colleges and universities frequently build their class reunions on participation in smaller units, such as departments or schools. Or they encourage " affinity reunions" for groups of former cheerleaders, editors, fraternity members, musicians, members of military organizations on campus, and the like. Of course, not every alumnus is fond of his or her alma mater. Students who graduated during the late 1960s may be especially reluctant to get involved in alumni events. They were part of the generation that conducted sit-ins and teach-ins directed at university administrators, protested military recruitment on campus and marched against "establishment politics". If this generation has a common identity, it may fall outside of their university ties — or even be hostile to them. Even as they enter their middle years, alumni who continue to hold unpleasant memories of college during this period may not wish to attend class reunions.

单选题Usually he managed to find plenty of work to ______ him over hard times. I think it is a good idea.

单选题We are writing to the manager ______ the repairs recently carried out at the above address.

单选题The board has ______ some rules that every member of the club must follow.

单选题The decline in moral standards, which has long concerned social analysts, has at last______the attention of average Americans.

单选题The middle-aged woman has been ______ with a serious illness for half a year; she is dying now. A. laid down B. laid off C. laid up D. laid in

单选题He is a (well-known) hardworking and clever student, and he often gets top (scores) in his class; so all his classmates (are sure) that he (studies very hardly).

单选题I could still have found my way into science in a nonexpansionist civilization of the future, where upward social mobility and its ______ opportunities would no longer be taken for granted to the degree that they have been in recent centuries.

单选题 {{B}}Questions 11-15 are based on the following passage.{{/B}} Among the many ways in which people communicate through speech, public speaking has probably received more study and attracted more attention than any other. Politicians campaigning for public office, salespeople presenting products, and preachers delivering sermons all depend upon this form of public communication. Even people who do not make speaking a part of their daily work are often asked to make public speeches: students at graduation, for instance, or members of churches, clubs, or other organizations. Nearly everyone speaks in public at some time or other, and those who perform the task well often become leaders. There are many reasons for speaking in public. A public speaker may hope to teach an audience about new ideas, for example, or provide information-about some topic. Creating a good feeling or entertaining an audience may be another purpose. Public speakers, however, most often seek to persuade an audience to adopt new opinions, to take certain actions, or to see the world in a new way. Public speakers usually know well in advance when they are scheduled to make an address. Consequently, they are able to prepare their message before they deliver it. Sometimes, though, speakers must deliver the message unprepared, or off the cuff, such as when they are asked to offer a toast at a wedding reception or to participate in a televised debate or interview. When they do not have to speak unprepared, most speakers write their own speeches. Politicians and business executives sometimes employ professional writers who prepare their speeches for them. These professional writers may work alone or in small teams. Although the speaker may have some input into the contents of the speech, the writers sometimes have a great influence over the opinions expressed by their employers. Regardless of how a speech is prepared, the person who delivers it is given credit for its effect upon its hearers.

单选题We're ______ by mosquitoes up here in the north in summer. A. infested B. infected C, swarmed D. plagued

单选题Which of the following actually prevents dirt and leaves from falling inside the tank?

单选题When we watch a play or a film, we all realize that the characters are sometimes ______. A. imaginative B. imaginable C. imagined D. imaginary

单选题On February 10, the world of psychiatry will be asked, metaphorically, to lie on the couch and answer questions about the state it thinks it is in. For that is the day the American Psychiatric Association (APA) plans to release a draft of the fifth version of its Diagnostic and Statistical Manual of Mental Disorders (DSM-V). Mental illness carrying such stigma (~) as it does, and the brain being as little-understood as it is, revising the DSM is always a controversial undertaking. This time, however, some of the questions asked of the process are likely to be particularly probing. The DSM, the first version of which was published in 1952, lists recognized psychological disorders and the symptoms used to diagnose them. In the United States, what is in it influences whether someone will be diagnosed with an illness at all, how he will be treated if he is so diagnosed, and whether his insurance company will pay for that treatment. Researchers in other countries generally defer to the DSM, too, making the manual's definitions a lingua franca for the science of medical psychology. And, perhaps most profoundly, the DSM, then, is an important document. The APA has been working on the latest revision since 1999, and will not release the final version until May 2013. But some people are already accusing it of excessive secrecy and being too ambitious about the changes it proposes. Those critics will be picking over the draft next week to see if their fears have been realized. The original DSM reflected the "psychodynamic" view of mental illness, in which problems were thought to result from an interplay between personality and life history. (Think Freud, Jung and long hours recounting your childhood and dreams.) The third version, which was published in 1980, took a more medical approach. Mental illnesses were seen as distinct and classifiable, like physical diseases. DSM-Ⅲ came with checklists of symptoms that allowed straightforward, unambiguous diagnosis. Psychiatry began to seem less like an art form and more like a science. DSM-Ⅲ also introduced many more diagnoses than had appeared before. These included attention-deficit disorder, post-traumatic stress disorder and social phobia. In fact, the number of specific diagnoses more than doubled between DSM-Ⅰ and DSM-Ⅲ, from 106 to 265. DSM-IV, published in 1994, increased the number to 267, but left the underlying model alone.

单选题Crew chiefs supervised engines, switches and lights that told them how each item of equipment was functioning. A. observed B. preserved C. monitored D. nurtured

单选题The family was too {{U}}obstinate{{/U}} to evacuate the house when the flood began.