96. "Disguise" in Paragraph 4 is closest in meaning to ______
A. reveal B. hide
C. deliver D. post外语学习网
97. The word "induce" in Paragraph 5 is closest in meaning to ______
A. cheat B. introduce
C. provide D. harm
98. "Opt-out" mechanism is probably ______
A. a machine that can be attached to your computer
B. a button that you can make a choice to read or not to read
C. a software that you can play a computer game
D. an e-mail that says some good words to you
99. It can be inferred from Paragraph 6 that bulk unsolicited commercial e-mail will probably spread ______
A. harmful virus B. unpleasant news
C. advertisements D. adult jokes
100. The unwanted e-mail problem can be solved if ______
A. the government takes action
B. a new technology is adopted
C. more people are aware of the problem
D. joint efforts are made and new technology is used
KEYS：
91.D[分析] 细节题型。
见第二段第一句：The convenience and efficiency of electronic mail are threatened by _______ unsolicited commercial electronic mail.从第三段得知unsolicited commercial electronic mail指的是unwanted messages;因此选项D为答案。
92.B[分析] 是非题型。
见第三段第一句：The receipt of unsolicited commercial electronic mail may result in costs to recipients who _____,or for the time spent accessing，reviewing，and discarding such mail，or for both.三个划线部分分别是选项A、C、D的内容，因此只有选项B为答案。
93.B[分析] 细节题型。
见第三段第二句：The receipt of a large number of unwanted messages also decreases the convenience of electronic mail and creates a risk that wanted electronic mail messages, both commercial and noncommercial，will be lost, overlooked, or discarded amidst…因此选项B为答案。
94.C[分析] 词义题型。
本文第三段主要谈及unsolicited commercial electronic mail带来的害处，且根据上下文，pornographic应与or前面的vulgar(粗俗的)近义：因此选项A. decent正派的，有分寸的、B.instructional指导的，教育的，D.commercial商业的，贸易的，均不符合题意，只有选项、 C.sexual(性的)符合题意，是答案。pornographic色情的，色情作品的。
95.A[分析] 细节题型。
见第四段第一句：The growth in unsolicited commercial electronic mail imposes significant monetary costs on providers of Internet access services，businesses，and educational and nonprofit institutions that…因此选项A是答案。
96.B[分析] 词义题型。
见第四段最后一句：Many senders of unsolicited commercial electronic mail purposefully disguise the source of such mail.根据前面提及的unsolicited commercial electronic mall会带来许多危害，可推断出发送人当然不希望人们知道他们的地址了;因此选项B.hide(隐藏，掩饰)是答案。disguise隐瞒，掩饰：reveal展现，揭示，deliver递送，陈述;post邮递，张贴，揭示。
97.A[分析] 词义题型。
从第五段第一句：Many senders of unsolicited commercial electronic mail purposefully include misleading information in the messages' subject lines in order to induce the recipients to view the messages.得知：这些人故意在邮件主题栏中使用一些会误导的信息来_______收件人观看信息，四个选项中A.cheat(欺骗，骗取)用在划线部分最符合题意。选项B(介绍)和C(提供)都不如A的意思恰当。
98.B[分析] 细节题型。考试用书
第四段第二句是个对比句：While some senders…provide simple and reliable ways for recipients to reject (or‘opt-out’of)receipt of…，other senders provide no such‘opt-out’mechanism…从中得知‘opt-out’应是reject的近义词;而‘opt-out’ mechanism应是前半句中提到的simple and reliable ways for recipients to reject receipt of……;因此选项B最符合题意。
99.C[分析] 推断题型。
从第六段得知：发送这些unwanted messages的人利用电脑程序自动从国际互联网站或在线服务来收集大量的e-mail地址……，由此推知：他们会向这些地址发送unwanted messages，目的当然应是发送广告了，因此选项C是答案。
100.D[分析] 细节题型。
见最后一段。选项A、B、C的内容都对，但都不全面：只有选项D(人们共同的努力和新技术的使用)最全面，是答案。
