选修七 Unit 3 The world online

选修七Unit 3 The world online
检测评价A卷
Ⅰ.单项填空
1．The price of gold has jumped to ________ new all-time high as debt worries in the US and ________ Europe continue to trouble the world.
A．the; / B．the; the
C．a; / D．a; the
解析：选C句意：因美国和欧洲的债务忧虑继续困扰世界，黄金的价格跃升到一个新的历史高点。

不定冠词a表示泛指，欧洲的前面不用冠词。

故选C项。

2．The air in Beijing those days was difficult for people ________. As a result, lots of people had to stay at home, especially the old.
A．breathing B．being breathed
C．to breathe D．to be breathed
解析：选C考查非谓语动词。

句意：那些日子北京的空气让人很难呼吸。

结果，很多人不得不待在家里，尤其是老人。

the air与breathe之间构成逻辑上的被动关系，需用被动语态，但因句中有形容词difficult，不定式在作状语时，用其主动形式表达被动含义，故答案为C。

3．Believe it or not, your ship isn't quite sunk, as there are some ways to ________ a new career even if it's something you've never done before.
A．burst into B．get through
C．break into D．comb through
解析：选C句意：信不信由你，你的船还没有完全沉没(还没有完全失去希望)，因为你还有办法从事一个新的事业，哪怕是你从来没做过的事情。

burst into“突然闯入”；get through“通过，完成”；break into“闯入，进入，成功打入(某行业、某领域)”；comb through“梳理，搜索”。

根据句意可知选C。

4．Give me an undisturbed hour, and I ________ the work Tom has left unfinished.
A．see to B．will see to
C．would be seeing to D．have seen to
解析：选B句意：给我一个小时的安静时间，我将处理好汤姆留下的未完成的工作。

此处是“祈使句＋and＋陈述句”的结构，陈述句中通常用一般将来时，故选B。

5．Before the summer camp, the kids might have thought Americans are difficult to ________，but through the experience during the summer camp, they know Americans are very friendly.
A．recognize B．acknowledge
C．approach D．confirm
解析：选C句意：在参加夏令营之前，孩子们可能觉得美国人很难接近，但通过在夏令营里的经历，他们知道美国人是很友好的。

recognize“认出，辨认出”；acknowledge“承认，认可”；approach“接近，靠近”；confirm“确定，证实”。

根据句意可知选C。

6．(2019·徐州高三模拟)________ by the sharp fall of the stock market, thousands and thousands of stockholders sold out their stock at a sacrifice.
A．Having alarmed B．Alarmed
C．To be alarmed D．Being alarmed
解析：选B句意：股市的急剧下跌使得人们恐慌不已，成千上万的股票持有者亏本卖掉了他们的股票。

be alarmed by“因……而恐慌”，此处用分词短语作原因状语。

7. (2019·江苏扬州高三质检) Despite difficulties, we must bear in mind________ we set this goal, stick to it and move forward regardless.
A．that B．why
C．when D．where
解析：选B句意：尽管困难重重，但我们必须牢记，我们为什么要制定这个目标，坚持到底，不动摇地向前走。

why在从句中作原因状语。

根据题意可知选B。

8．The more you like yourself，________，which makes you unique.
A．the less you are like anyone else
B．you are less like anyone else
C．you are the less like anyone else
D．the less like you are anyone else
解析：选A句意：你越喜欢你自己，你就会越不像别人，这会让你很独特。

只有A 项符合“the＋比较级，the＋比较级”结构。

9．—I phoned you yesterday morning. A girl answered, but I didn't recognize the voice.
—Oh, it ________ my younger sister. She was in my room at that moment.
A．must have been B．should have been
C．could have been D．may have been
解析：选A句意：“我昨天早上打电话给你。

一个女孩接的，但我没听出是谁的声音。

”“哦，一定是我的妹妹。

她那时正在我的房间。

”由She was in my room at that moment 可知此处为肯定推测，选A项。

10．I agree about most of what my mother said about the plan, but I don't agree with ________.
A．everything B．anything
C．something D．nothing
解析：选A句意：我同意母亲对这个计划的大部分意见，但我并不完全赞同她。

not ... everything构成部分否定，表示“并不完全……”，符合句意。

11．If ________ in wet sand, the vegetables can remain fresh for a long time.
A．being buried B．having buried
C．buried D．burying
解析：选C考查状语从句的省略。

vegetables与bury之间构成被动关系，故用buried，此处省略了the vegetables are。

12．“Spit-take” refers to an act ________ someone spits liquid out of his or her mouth ________ he or she hears something funny or surprising.
A．where; in which B．in which; when
C．when; in which D．in which; where
解析：选B句意：“笑喷”一词指的是一种行为，即当人们听到滑稽或令人惊讶的事情时将液体从口中吐出。

第一空是定语从句的用法；第二空后是时间状语从句。

13．He commanded that all the gates ________ immediately in case the murderer escaped.
A．should shut B．would be shut
C．shut D．be shut
解析：选D句意：他命令立刻关上所有的门以免杀人犯逃走。

command后接宾语从句时，从句使用虚拟语气，即“(should＋)动词原形”。

宾语从句的主语gates与shut之间为逻辑上的动宾关系，因此使用被动语态。

14．—I hear Tom has failed in the spoken English test.
—You said it. The written record of his conversation didn't ________ to what was actually said.
A．contribute B．correspond
C．distribute D．respond
解析：选B句意：“我听说汤姆在英语口语比赛中输了。

”“你说得对。

书面形式的会话和实际表达还是不一样的。

”contribute to“贡献，促进”；correspond to “符合，相一致”；distribute to “分发给”；respond to “对……作出反应”。

根据句意可知选B。

15．Unsatisfied ________ with the payment, he took the job just to get some work experience.
A．though was he B．though he was
C．he was though D．was he though
解析：选B句意：尽管他对工资不满意，他还是从事了这份工作，只是为了获得一
些工作经验。

though 引导让步状语从句时，可以倒装也可以不倒装，其倒装结构和as一样，即表语＋though/as ＋主语＋be，故选B项。

Ⅱ.完形填空
(2019·苏北四市联考试题)The year I began my first year of college was also the birth year of Facebook. Unlike today, Facebook, in its __1__ form, was a way to connect you with your classmates. I used it to __2__ with my classmates about an upcoming study group or to __3__ the homework I missed if I was __4__ from class that day.
Facebook and I had a good run, but I was __5__ when it stopped being a place to chat with people I knew and went to class with, and turned into a __6__ of self-absorption, a virtual (虚拟的) platform for people to __7__ of very unimportant things.
So I quietly deactivated my __8__ and haven't looked back since. It was my personal __9__ to remove myself. I had to __10__ from this virtual world that was always connecting. But my friends would say they have no __11__ to “check me in” to the bar or ci nema or restaurant we were __12__. They were genuinely upset they couldn't contact me on the Internet, __13__ I was still right beside them.
Some would have thought I wanted to return to old ways; I __14__ did not. It's a foolish notion to even say we should go back to a time __15__ the rise of modern technology. __16__，every so often, put your devices down and __17__ what is in front of you.
Experience things, climb mountains, jump into the ocean or go for a walk. Share a(n) __18__ conversation with someone without emoticons (表情符号). When you stop __19__ the world on every aspect of your life, you will realize how much time that __20__ to live.
C．easiest D．clearest
解析：选B与现在的Facebook不同，之前Facebook的形式是非常简单的。

simple“简单的”符合语境。

2．municate B．meet
C．agree D．celebrate
解析：选A根据上文中的“a way to connect you with your classmates”可知，此处指作者使用Facebook来与同学交流。

communicate“沟通，交流”符合语境。

3．A.mark B．comprehend
C．appreciate D．catch
解析：选D如果作者那天没有去上课的话，他用Facebook来及时赶上自己错过的作业。

catch“及时赶上”符合语境。

mark“评分”；comprehend“理解”；appreciate“欣
赏，领会”。

4．A.absent B．tired
C．far D．distinct
解析：选A参见上题解析。

absent“缺席的，不在的”；distinct“截然不同的，有区别的”。

5．A.turned up B．turned down
C．turned off D．turned over
解析：选C根据“Facebook and I had a good run, but I was ... went to class with”可知，当Facebook变得不再是作者和认识的、一起上课的人聊天的地方时，作者对它失去了兴趣。

turn off“使厌烦，使失去兴趣”符合语境。

turn up“突然出现”；turn down“拒绝”；turn over“移交，送交”。

6．A.tool B．scene
C．passage D．world
解析：选D此处指Facebook变成了一个人们只关心自己的圈子，一个人们在上面抱怨非常不重要的事情的虚拟平台。

world“世界；生活环境，生活圈子”符合语境。

tool“工具”；scene“场景”；passage“通道”。

7．plain B．approve
C．admit D．despair
解析：选A参见上题解析。

complain of/about“抱怨，埋怨”符合语境。

approve of“赞成，同意”；admit of“容许，有……可能(指解决办法、解释等)”；despair of“失去希望，丧失信心”。

8．A.email B．device
C．account D．license
解析：选C根据下文中的“remove myself”“they couldn't contact me on the Internet”可知，此处指因此作者悄悄地注销了自己的Facebook账号。

account“(互联网、电子邮件等的)账户，账号”符合语境。

email“电子邮件”；device“设备”；license“许可证”。

9．A.privilege B．preference
C．prejudice D．judgment
解析：选B根据上文提及的作者开始也很喜欢使用Facebook，但后来Facebook变成了人们抱怨不重要的事情的平台后，作者不喜欢Facebook了，这才有了后来作者悄悄地注销了自己的Facebook账号。

由此可知，此处指脱离Facebook是作者个人的喜好问题。

preference“偏爱，爱好”符合语境。

privilege“特权”；prejudice“偏见”；judgment“判断”。

10．A.recover B．differ
C．suffer D．disconnect
解析：选D根据下文中的“from this virtual world that was always connecting”可知，此处与connecting相对应，表示作者不得不脱离这个虚拟的世界。

disconnect“使分离，使脱离，断开”符合语境。

recover“恢复”；differ“相异，不同于”；suffer“遭受”。

11．A.effort B．time
C．access D．choice
解析：选C作者的朋友会说他们无法通过网络约他去他们常去的酒吧、影院或者餐馆。

access“通道，入口”符合语境。

12．A.frequenting B．exploring
C．wandering D．tracing
解析：选A参见上题解析。

frequent“常去”符合语境。

explore“探索”；wander“徘徊”；trace“追踪，发现”。

13．A.unless B．though
C．as D．if
解析：选B尽管作者仍旧在他们身边，他们真的很不高兴不能在网上联系到作者。

分析句子结构可知，前后句之间存在让步关系，故用though“尽管，即使”引导让步状语从句。

unless“除非”；as“当……时”；if“如果”。

14．A.obviously B．accidentally
C．hopefully D．absolutely
解析：选D根据下文中的“It's a foolish notion to even say ... of modern technology”可知，作者绝对不想回到过去。

absolutely“绝对地”符合语境。

obviously“明显地”；accidentally“偶然地”；hopefully“有希望地”。

15．A.after B．until
C．when D．before
解析：选D甚至提及我们应该回到现代科技兴起之前的时代都是一种愚蠢的想法。

before“在……以前”符合语境。

16．A.Therefore B．Besides
C．However D．Meanwhile
解析：选C但是，时不时地要放下你的设备，关注眼前的东西。

前后句之间存在转折关系，故However“但是”符合语境。

therefore“因此”；besides“除此之外”；meanwhile“与此同时”。

17．A.focus on B．keep to
C．get through D．build up
解析：选A参见上题解析。

focus on“关注；集中”符合语境。

keep to“遵守，坚守”；
get through“处理；完成”；build up“创建；增强”。

18．A.formal B．actual
C．normal D．individual
解析：选B根据下文中的“without emoticons (表情符号)”可知，此处指与某人进行真实的谈话而不是用表情符号。

actual“真实的，真正的，实际的”符合语境。

formal“正式的”；normal“正常的”；individual“单独的，与众不同的”。

19．A.basing B．centering
C．updating D．testing
解析：选C当你停止向世人提供关于你生活的方方面面的信息时，你会意识到自己腾出了多少时间来生活。

update“向……提供最新信息，给……增加最新信息”符合语境。

base“把基地设于，以……为基地”；center“集中，使……处于中心位置”；test“检查”。

20．A.affords B．frees
C．undertakes D．manages
解析：选B参见上题解析。

afford“承担得起”；free“使……可用”；undertake“承担”；manage“能做成，管理”。

Ⅲ.任务型阅读
(2019·苏锡常镇调研)Sorry seems to be the hardest word. So sang Elton John on one of his biggest 1970s hits — but not every public figure seems to find it so tough to let out that powerful five-letter word.
In recent months varieties of public figures, from politicians, to Hollywood actors and You Tube stars have all publicly expressed regrets.
But with floods of regrets on the airwaves, just how can we tell a forced apology from a heartfelt expression?
In its purest form, saying sorry should be an “act of regrets, a realization that something you have said or done has hurt someone and you want to repair it”，says psychologist Geraldine Joaquim.
Made early, a sincere apology can be huge ly beneficial and can “relieve the tension and takes the wind out of an accuser's sails”，she says.
A need to say sorry can arise in someone's public life and equally at home with their family and friends but, whatever the environment, how well it is received depends on how personalized it feels.
From businesses, governments and organizations, a scripted response will fail to resonate (引起共鸣) as it will not convey empathy (同理心) and sympathy.
Whether online or in person, the timing and choice of language in an apology are decisive factors.
“It is important to show that you understand and sympathize，” says Martin Stone, of
PR agency Tank, “It is vital that any business or individual making an apology understands the focus — is it sorry for the way it's acted or is it sorry that the complainant feels the way they do？”
Performed apologies always have a sense of being “acted out”，and are often accompanied by too many theatrical gestures. If sincere, the person making the apology will be looking for listening clues to see if they are being understood, such as eye contact and facial expressions. They will provide “humbling (谦卑的) signals”，such as a lowered head, to indicate regrets.
It is also important to avoid irresponsible statements or promises that can't be kept. “Don't say that you'll ensure that this will not happen again if you're not confident it won't. It could come back to bite you，” Stone explains.
Equally, the use of “but” can hugely change the tone of an apology.
As Stone points out, “I'm sorry but ... It sounds like you are making excuses and aren't actually taking any form of responsibility. It may be three letters but it can instantly make an apology seem hollow.”
5．extent/degree 6.When7.body8.acting
9．responsible10.excuses
检测评价B卷
阅读理解
A
Ever want to peek at a celebrity's gift list? For the curious and those in need of a few holiday ideas, we tracked down some people. Their answers might surprise you.
Martin Dahinden
SWISS AMBASSADOR TO THE UNITED STATES
TO GIVE: I like things to be practical and well thought-out. I would say that is typically Swiss. I would gift someone a Swiss Army Knife, a useful gift in many ways. Victorinox Swiss Army Spartan ⅡPocket Knife, ＄17.13. Victorinox Swiss Army EvoWood 17 Swiss Army Knife, ＄54.97. amazon. com.
Sylvia Colella
FOUNDER OF FASHION AND LIFESTYLE BLOG SIMPLY SYLVIA
TO GIVE: One thing that keeps me motivated is great-looking workout or athletic wear, so I enjoy gifting pieces from my favorite brands, like Michi, Alo Yoga and Spiritual Gangster. Koral Lustrous Legging, ＄95. Michi Bionic Bra, ＄95.
Melissa Ho
RENWICK GALLERY CURATOR OF 20TH-CENTURY ART
TO GIVE: I would give this book to any Washingtonian who was foolish enough to miss the extraordinary Robert Irwin exhibition at the Hirshhorn this summer. The magic of Irwin's phenomenological art is difficult to convey in either photographs or words, yet Hankins's prose makes the story of his breakthrough years both accessible and enjoyable.
Robert Ir w in: All the Rules Will Change by Evelyn C. Hankins, ＄35.90. amazon. com.
Kwame Alexander
POET AND NEWBERY-WINNING AUTHOR OF“THE CROSSOVER”
TO GIVE: A children's book gift basket with some of my favorites: Zoe in Wonderland by Brenda Woods, anything by Mo Willems, Debbie Levy and Vanessa Brantley-Newton's We Shall O v ercome, and this really cool novel called The Crosso v er. I Dissent, ＄14.10. We Shall O v ercome, ＄15.65. Zoe in Wonderland, ＄14.21. The Crosso v er, ＄10.36. amazon. com.
语篇解读：本文是应用文。

假日礼物该选什么？看看这些人的回答。

1．Who may be a huge fitness enthusiast?
A．Melissa Ho.B．Sylvia Colella.
C．Martin Dahinden. D．Kwame Alexander.
解析：选B细节理解题。

根据Sylvia Colella部分中的“One thing that keeps me motivated is great-looking workout or athletic wear”可知选B项。

2．Which of the following is the most suitable for kids?
A．We Shall O v ercome.
B．Koral Lustrous Legging.
C．Robert Ir w in: All the Rules Will Change.
D．Victorinox Swiss Army EvoWood 17 Swiss Army Knife.
解析：选A细节理解题。

根据Kwame Alexander部分中的“A children's book gift basket with some of my favorites ...We Shall O v ercome，”可知选A项。

B
(2019·南京三模)Humanity has begun wrestling with the dangers of global threats such as climate change. But few authorities are planning for catastrophic solar storms —huge eruptions of mass and energy from the sun that destroy the Earth's magnetic field. In a recent paper, two Harvard University scientists estimate the potential economic damage from such an event will increase in the future and could equal the current US GDP — about ＄20 trillion — 150 years from now.
This kind of storm has happened before. The so-called Carrington Event of 1859, the most intense magnetic storm ever recorded on the Earth, caused auroras (极光) in the atmosphere and even delivered electric shocks to telegraph operators. But a Carrington-scale storm today would cause far more harm because society now depends so heavily on electrical power grids, communications satellites and GPS.
In an effort to quantify that threat, astrophysicists Abraham Loeb and Manasvi Lingam of the Harvard-Smithsonian Center for Astrophysics developed a mathematical model that
assumes society's vulnerability (脆弱性) to solar storms will grow with technological advances. Under this model, during the next 50 years the potential for economic damage will depend primarily on the rising odds of a strong solar storm over time. Beyond 50 years our vulnerability will increase dramatically with technological progress until the latter levels off.
Some scientists question the model's predictions.“Estimating the economic impact is challenging now, let alone in over a century，” says Edward Oughton, a research associate at the University of Cambridge's Center for Risk Studies. Y et he warns that uncertainty should not stop us from practical preparations, such as making power grids stronger and improving early-warning systems.
Loeb and Lingam think up a much wilder strategy: a ＄100-billion magnetic deflector shield (导流板), positioned between the Earth and the Sun. This idea seems “pretty preposterous”，however, given that solar particles arrive at the Earth from all directions, says Daniel Baker, director of the Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder.
A better understanding of “space weather” — the changing conditions in the Earth's outer space environment, including solar radiation and particles — could help find the best strategies for confronting a dangerous solar storm, says Stacey Worman, a senior analyst at consulting firm Abt Associates. “This is a challenging but important question，” Worman says, “that we need more eyes on.”
语篇解读：本文是一篇说明文。

主要介绍了太阳风暴的危害，提醒当权者要注意防范。

3．According to Edward Oughton, which of the following about solar storms is RIGHT?
A．They will become much stronger in 150 years.
B．Technology makes their potential damage grow.
C．It's difficult to predict their possible economic damage.
D．Space weather forecast can effectively help deal with them.
解析：选C细节理解题。

根据第四段中的“Estimating the economic impact is challenging now”可知，现在估计经济影响是有挑战性的，故选C项。

4．The underlined word “preposterous” in Paragraph 5 means“________”.
A．unreasonable B．practical
C．innovative D．inflexible
解析：选A词义猜测题。

由however可知该句与上句在意义上发生了转折。

上文中说道“他们两个提出了一个更加大胆的想法”；接下来是“但是，这个观点似乎相当的不合理”。

所以这个词的意思与A项词义接近。

5．The author writes the passage mainly to ________.
A．report the damage of solar storms
B．remind people to guard against solar storms
C．introduce the characteristics of solar storms
D．analyze the possible cause of solar storms
解析：选B写作意图题。

由第一段中“But few authorities are planning for catastrophic solar storms”以及最后一段第一句可知，该文的写作目的是提醒人们应对太阳风暴的危害。

C
(2019·盐城模拟)People from all over the world visit Disneyland to have fun, not to get sick. But last week, an outbreak of measles (麻疹) spread from the Southern California theme park. As of Monday, January 19, at least 52 people have got the easily spread illness.
The majority of the reported cases of measles are from people who visited the park before. According to the California Department of Public Health, these people were exposed to the illness at Disneyland from December 17—20.
Officials believe the cause is likely someone who caught measles abroad and visited Disneyland, but this has yet to be proved. However, in 2014, California had its highest measles infection rate in nearly twenty years. There were 66 cases of measles reported in the state — 23 of them in Orange County, where Disneyland is located.
Measles spreads very easily. It can be caught from coughing and sneezing. Crowded areas like theme parks are especially suitable for its spread.
The illness starts with a fever and develops into symptoms including a cough, runny nose, red eyes and so on. About three out of ten people infected with measles will develop another health problem, including an ear infection or pneumonia (肺炎)．
The best way to guard against measles is to get vaccinated (打疫苗). An unvaccinated person is 35 times more likely to catch measles than someone who received a vaccination.
A．There were too many people visiting Disneyland.
B．Somebody with measles visited Disneyland.
C．California is a place fit for this illness spread.
D．Some people ate something that had gone bad.
解析：选B细节理解题。

根据第三段第一句可知，麻疹病在加利福尼亚发生的原因可能是有感染了麻疹的人参观了迪士尼乐园。

故选B项。

7．How many people reported suffered from measles in California in 2014?
A．66. B．23.
C．43. D．52.
解析：选A细节理解题。

根据第三段第二、三句可知，有66人感染了麻疹。

故选A。

8．What do we know about measles from the text?
A．Half of people infected with it will die soon.
B．It usually begins with a cough and red eyes.
C．It spreads easily in a place with many people.
D．It's impossible to stop it from spreading.
解析：选C细节理解题。

根据第四段第三句可知，在人多的地方麻疹很容易传播。

故选C项。

9．To prevent measles, the best thing we can do is ________.
A．never visit Disneyland
B．have a regular physical examination
C．consult a doctor
D．get vaccinated
解析：选D细节理解题。

根据最后一段第一句可知，预防麻疹的最好的方法是打疫苗。

故选D项。

D
In July, more than 15,000 security experts, hackers, hobbyists, and researchers met in Las Vegas for Black Hat USA 2017 at Mandalay Bay. This was the 20th year that the security conference was held, and both black and white hat hackers joined together to discuss security.
For two decades, Black Hat has gained a reputation for demonstrations of some of the most cutting-edge research into information security as well as its development and industry trends. The event has also had its share of controversy —sometimes even causing last-minute cancelations (中止)．
Launched in 1997 as a single conference in Las Vegas, Black Hat has gone international with annual events in the U．S. , Europe and Asia. Black Hat USA 2017 was almost a full week of everything having to do with IT security. There were hands-on training sessions, a full business hall where sellers gathered with products, and of course, parties. I felt very content for the products I had bought would really help me a great deal from then on.
This is a conference that attracted some of the brightest people in the world of security, and has a reputation for bringing together all types of professionals and amateurs interested in hacking, security, or the latest encryption. What's interesting about Black Hat USA 2017 is that there is something for everyone. From hackers trying to hack other hackers' database to hackers remaining “off the grid” (不入网), you never know what you might find. In fact, most people who attended this conference decided to stay away from electronic communication all together. Those experienced attendees left their devices in airplane mode,
turned off Wi-Fi, and always used two-factor authentication (二元认证) for critical accounts during the conference.
It's important to note that many companies have employees that simply don't comply (服从) with security policies. In addition, these policies aren't governed enough, and it is costing millions. In her presentation “Governance, Compliance and Security: Three Keys to Protecting Your Bu siness”，the speaker from HP —Sr. Security Advisor, Dr. Kimberlee Brannock, has used her extensive education and experience in compliance and governance to shape HP's security standards and shared why it's not always enough to secure business networks and why governance and compliance really matter. With 25 billion connecting devices by 2020, maintaining proper networks and data security compliance is an important concern for any business, as non-compliance costs businesses an average of ＄9.5 million every year through fines, lost business and lawsuits.
Another very popular briefing at Black Hat USA 2017 was “Staying One Step Ahead of Evolving Threats” demonstrating on average, an organization has more than 600 security alerts each week.
Most put in thousands of hours and dollars for that matter, on securing servers, laptops, and data centers, but many companies are ignoring other areas of security vulnerabilities. One of the best things about this briefing was that the leader, Michael Howard from HP, Chief Security Advisor, is responsible for evolving the strategy for security solutions and services in Managed Services. He gave a lot of information on printer security, used a great number of real-world negative examples related to printer security in many companies and shared how he used a proven framework to secure the print infrastructure.
Overall, Black Hat USA 2017 was an eye-opening experience, and with the world of network security changing all the time, all in attendance surely learned something new. I came across a large number of very cool characters, partied hard, drank too much, and ate too much. However, after my attendance, I'm considering moving off the grid to a cave in the Outback of Australia to keep my data secure.
A．To help popularize the Internet.
B．To discuss the information security.
C．To encourage more Internet surveys.
D．To show the most advanced IT products.
解析：选B推理判断题。

根据第一段的最后一句及和第二段“information security”等信息可知，15 000 多位安全专家、黑客、业余爱好者和研究者参加了这个安全会议，黑帽
黑客和白帽黑客一起加入进来讨论信息安全问题。

由此可推知，该会议的主要目的是讨论信息安全问题，故选B项。

11．Why did the author feel satisfied during Black Hat USA 2017?
A．He enjoyed himself at the parties.
B．He talked with many security experts.
C．He took professional security training.
D．He bought some practical security products.
解析：选D细节理解题。

根据第三段的最后一句可知，作者因自己买到了实用的网络安全产品而感到高兴。

故选D项。

12．Why did the experienced people disconnect from Wi-Fi at the conference?
A．To show their respect for the event.
B．To find an effective way to avoid hackers.
C．To protect their own important information.
D．To stop them from being disturbed by others.
解析：选C推理判断题。

根据第四段的内容，尤其是“you never know what you might find”及最后一段可推知，由于该会议上云集了众多信息技术人员，有经验的参加者们会关闭Wi-Fi，并为自己的重要账户设置二元认证，言外之意就是这些参加者们关闭Wi-Fi是为了保护自己的重要信息不被泄露，故选C项。

13．What was the topic of Dr. Kimberlee Brannock's presentation at the conference?
A．Security standards. B．Business protection.
C．Security education. D．Business principles.
解析：选B细节理解题。

根据第五段的第二句可知，Dr. Kimberlee Brannock的演讲主题是“Governance, Compliance and Security：Three Keys to Protecting Your Business”，即商业保护的三个关键，故选B项。

14．What can we learn from the briefing of Michael Howard?
A．Many companies fall behind in printer security.
B．Many companies often lack security awareness.
C．Printer security can cause certain side effect.
D．Printer security has been proven useful widely.
解析：选A推理判断题。

根据倒数第二段的最后一句可知，Michael Howard运用了许多公司中存在的同打印机安全相关的大量反面例子来论证他的主题，由此可推知，许多公司在打印机安全这方面做得还不到位，故选A项。

15．What impact does attending the conference have on the author?
A．He chooses more effective data security.
B．He raises the awareness of data security.
C．He makes friends with many security experts.
D．He finds a commercial opportunity in data security.
解析：选B推理判断题。

根据最后一段的最后一句可知，作者在参加了这次黑帽大会后，正在考虑自己是否应搬去山洞来保护自己的数据安全，作者是在用戏谑的口吻表达自己对信息保护的重视，故B项“他提升了数据安全的意识”正确。