(2013·高考广东卷，D)While Jennifer was at home taking an online exam for her business law class，a monitor(监控器)a few hundred miles away was watching her every move.
Using a web camera equipped in Jennifer’s Los Angeles apartment，the monitor in Phoenix tracked how frequently her eyes moved from the puter screen and listened for the secret sounds of a possible helper in the room.Her Internet access was locked－remotely－to prevent Internet searches，and her typing style was analyzed to make sure she was who she said she was：Did she enter her student number at the same speed as she had in the past? Or was she slowing down?
In the battle against cheating，this is the cutting_edge and a key to encourage honesty in the booming field of online education.The technology gives trust to the entire system，to the institution and to online education in general.Only with solid measures against cheating，experts say，can Internet universities show that their exams and diplomas are valid—that students haven’t just searched the Internet to get the right answers.
Although online classes have existed for more than a decade，the concern over cheating has bee sharper in the last year with the growth of“open online courses.”Private colleges，public universities and corporations are jumping into the online education field.spending millions of dollars to attract potential students，while also taking steps to help guarantee honesty at a distance.
Aside from the web cameras，a number of other hightech methods are being increasingly popular.Among them are programs that check students’ identities using personal information，such as the telephone numbers they once used.
Other programs can produce unique exams by drawing on a large list of questions and can recognize possible cheaters by analyzing whether difficult test questions are answered at the same speed as easy ones.As in many university classes，term papers are scanned against some large Internet data banks for cheating.
【小题1】Why was Jennifer watched in an online exam?A．To correct her typing mistakes.B．To find her secrets in the room.C．To prevent her from slowing down.D．To keep her from dishonest behaviors.【小题2】The underlined expression cutting edge in Paragraph 3 is closest in meaning to .A．advanced techniqueB．sharpening toolC．effective ruleD．dividing line【小题3】For Internet universities，exams and diplomas will be valid if .A．they can attract potential studentsB．they can defeat academic cheatingC．they offer students online helpD．they offer many online courses【小题4】Some programs can find out possible cheaters by .A．checking the question answering speedB．producing a large number of questionsC．scanning the Internet test questionsD．giving difficult test questions【小题5】Which of the following is the best title of this passage?A．The Advantages of Online ExamsB．The Hightech Methods in Online CoursesC．The Fight against Cheating in Online EducationD．The War against the Booming of Online EducationD
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(答案→)D
解析：本文为说明文。网络教育越来越受欢迎，但是在考试时如何防止考生作弊呢？网络教育文凭的可信度与考试防作弊程序的有效性密切相关。核实考生个人信息的程序以及监控分析考生答题速度的程序都可以遏制网络考试中出现的作弊现象。
【小题1】解析：选D。推理判断题。根据第二段提到的监控内容以及第三段的In the battle against cheating...可知，对Jennifer进行监控是为了防止她考试作弊。前三项分别意为“纠正她的打字错误”“找到她房间里的秘密”“阻止她放慢速度”，都与文章内容不符。
【小题2】解析：选A。词义猜测题。根据上文可知，网络远程监控设备是在蓬勃发展的网络教育领域中鼓励诚实的前沿科技，也是关键所在。由下一句中的The technology也可推测出cutting edge是一种“尖端科技”，故A项正确。
【小题3】解析：选B。细节理解题。根据第三段的Only with solid measures against cheating， experts say，can Internet universities show that their exams and diplomas are valid...可知，只有通过强有力的手段来杜绝作弊，网络大学的考试和文凭才有效，B项与之意思一致。
【小题4】解析：选A。细节理解题。除了远程监控手段外，文章在最后两段还介绍了两种防止作弊的方法，一种是核实考生的个人信息，另一种则是分析考生的答题速度，A项与文章最后一段内容一致。
【小题5】解析：选C。主旨大意题。概括全文可知，文章主要介绍了几种防止远程网络考试作弊的技术，故C项正确。“防止作弊”为关键词，其余选项均未涉及，故排除。