下面是小编为大家整理的（英语四级考试前必做）2016年12月四级真题（第3套）（完整文档）,供大家参考。
机密* * 启用前
大
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试 COLLEGE ENGLISH TEST — Band Four— — (2016 6 年 12 月第3 3 套) ) 试
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一、在答题前, , 请认真完成以下内容: :
1. 请检查试题册背面条形码粘贴条、答题卡的印刷质量,如有问题及时向监考员反映,确认无误后完成以下两点要求. 2. 请将试题册背面条形码粘贴条揭下后粘贴在答题卡1的条形码粘贴框内,并将姓名和准考证号填写在试题册背面相应位置. 3. 请在答题卡1和答题卡2指定位置用黑色签字笔填写准考证号、姓名和学校名称,并用HB-2B铅笔将对应准考证号的信息点涂黑. 二、在考试过程中, , 请注意以下内容: :
1. 所有题目必须在答题卡上规定位置作答,在试题册上或答题卡上非规定位置的作答一律无效. 2. 请在规定时间内在答题卡指定位置依次完成作文、听力、阅读、翻译各部分考试,作答作文期间不得翻阅该试题册.听力录音播放完毕后,请立即停止作答,监考员将立即收回答题卡1,得到监考员指令后方可继续作答. 3. 作文题内容印在试题册背面,作文题及其他主观题必须用黑色签字笔在答题卡指定区域内作答. 4. 选择题均为单选题,错选、不选或多选将不得分,作答时必须使用HB-2B铅笔在答题卡上相应位置
填涂,修改时须用橡皮擦净. 三、以下情况按违规处理: :
1. 未正确填写(涂)个人信息,错贴、不贴、毁损条形码粘贴条. 2. 未按规定翻阅试题册、提前阅读试题、提前或在收答题卡期间作答. 3. 未用所规定的笔作答、折叠成毁损答题卡导致无法评卷. 4. 考试期间在非听力考试时间佩戴耳机.
全国大学英语四、六级考试委员会
Part I
Writing
(30 minutes)
Directions: For this part, you are allowed 30 minutes to write an essay. Suppose you have two
options upon graduation: one is to work in a state- - owned business and the
other in a
joint venture. You are to make a choice between the two. Write an essay to explain the reasons for your choice.You should write at least 120 words but no more than 180words.
Part II
Listening Comprehension
(25 minutes) )
特别说明: : 由于
2016 6 年 年
12 月四级考试全国共考了
2 套听力, , 本套听力试题同第1 1 套或第2 2 套试题一致, , 因此在本套真题中不再重复出现. .
Part Ⅲ
Reading Comprehension
(40 minutes)
Section A Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices.Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.
Questions 26 to 35 are based on the following passage.
Many men and women have long bought into the idea that there are "male" and "female" brains,believing that explains just about every difference between the sexes. A new study26that belief,questioning whether brains really can be distinguished by gender. In the study, Tel Aviv University researchers27for sex differences throughout the entire human brain.
And what did they find? Not much. Rather than offer evidence for28brains as "male" or"female," research shows that brains fall into a wide range, with most people falling right in the middle. Daphna Joel, who led the study, said her research found that while there are some gender-based29, many different types of brain can"t always be distinguished by gender. While the "average" male and "average" female brains were30different, you couldn"t tell it by looking at individual brain scans. Only a small31of people had "all-male" or "all-female"characteristics. Larry Cahill, an American neuroscientist ( 神经科学家), said the study is an important addition to a growing body of research questioning32beliefs about gender and brain function. But he cautioned against concluding from this study that all brains are the same,33of gender. "There"s a mountain of evidence34the importance of sex influences at all levels of brain function," he told The Seattle Times. If anything, he said, the study35that gender plays a very important role in the brain--" even when we are not clear exactly how. "
A.abnormal B.applied C.briefly D.categorizing E.challenges F.figure G.percentage H.proving I.regardless J.searched K.similarities L.slightly M.suggests N. tastes O.traditional
Section B Directions : In this section,you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs.Identify the paragraph from which the
information is derived.You may choose a paragraph more than once.Each paragraph is marked with a letter.Answer the questions by marking the corresponding letter on Answer Sheet 2.
Can Burglars Jam Your Wireless Security System?
A.Any product that promises to protect your home deserves careful examination.So it isn"t surprising thatyou"11 find plenty of strong opinions about the potential vulnerabilities of popular home—security systems.
B.The most likely type of burglary(人室盗窃)by far is the unsophisticated crime of opportunity,usually involving a broken window or some forced entry.According to the FB1.crimes like these accounted for roughly two.thirds of all household burglaries in the US in 2013.The wide majority of the rest were illegal.unforced entries that resulted from something like a window being left open.The odds of a criminal using technical means to bypass a security system are so small that the FBI doesn"t even track those statistics.
C.One of the main theoretical home—security concerns is whether or not a given system is vulnerable to being blocked from working altogether.With wired setups,the fear is that a burglar(人室盗贼)might be able to shut your system down simply by cutting the right cable.With a wireless setup.you stick battery—powered sensors up around your home that keep an eye on windows.doors,motion,and more.If they detect something wrong while the system is armed.they"ll transmit a wireless a left signal to a base station that will then raise the alarm.That approach will eliminate most cord—cutting concerns--but what about their wireless equivalent,jamming?with the fight device tuned to the fight frequency,what"s to stop a thief from jamming your setup and blocking that alert signal from ever reaching the base station?
D.Jamming concerns are nothing new,and they"re not unique to security systems.Any device that"s built to receive a wireless signal at a specific frequency can be overwhelmed by a stronger signal coming in on the same frequency.For comparison.1et"s say you wanted to“jam”a conversation between two people--all you"d need to do is yell in the listener"s ear.
E) Security devices are required to list the frequencies they broadcast on—mat means that a potential thief can find what they need to know with minimal Googling.They will.however.need to know what system they"re looking for.If you have a sign in your yard declaring what setup you use, that"d point them in the right direction,though at that point,we"re talking about a highly targeted,semi—sophisticated attack,and not the sort of forced—entry attack that makes up the majority of burglaries.It"s easier to find and acquire jamming equipment for some frequencies than it is for others.
F)Wireless security providers will often take steps to help combat the threat of jamming attacks. SimpliSafe,winner of our Editors"Choice distinction.utilizes a special system that"s capable of separating incidental RF interference from targeted jamming attacks.When the system thinks it"s being jammed,it"ll notify you via push alert(推送警报).From there,it"s up to you to sound the alarm manually.
G)SimpliSafe was singled out in one recent article on jamming,complete with a video showing the entire system being effectively bypassed with hand held jamming equipment.After taking appropriate measures to contain the RF interference to our test lab,we tested the attack out for ourselves,and were able to verify that it"s possible with the right equipment.However.we also verified that SimpliSafe"s anti-jamming system works.It caught us in the act,sent an alert to my smart phone,and also listed our RF interference on the system"s event log.The team behind the article and video in question make no mention of the system,or whether or not it detected them.
H)We like the unique nature of that software.It means that a thief likely wouldn"t be able to Google how the system works.then figure out a way around it.Even if they could,SimpliSafe claims that its system is always evolving,and that it varies slightly from system to system,which means there wouldn"t be a universal magic formula for cracking it.Other systems also seem confident on the subject of jamming.The team at Front point addresses the issue in a blog on its site,citing their own jam protection software and claiming that there aren"t any documented cases of a successful jam attack since the company began offering wireless security sensors in the l980s.
I)Jamming attacks are absolutely possible.As said before.with the fight equipment and the right know—how,it"s possible to jam any wireless transmission.But how probable is it that someone will
successfully jam their way into your home and steal your stuff?
J)Let"s imagine that you live in a small home with a wireless security setup that offers a functional anti—jamming system.First,a thief is going to need to target your home,specifically.Then,he"s going to need to know the technical details of your system and acquire the specific equipment necessary for jamming your specific setup.Presumably,you keep your doors locked at night and while you"re away,so the thief will still need to break in.That means defeating the lock somehow,or breaking a window.He"11 need to be jamming you at this point,as a broken window or opened door would normally release the alarm.S0,too,would the motion detectors in your home,so the thief will need to continue jamming once he"s inside and searching for things to steal.However.he"11 need to do so without tripping the anti-jamming system,the details of which he almost certainly does not have access to.
K)At the end of the day,these kinds of systems are primarily designed to protect against the sort of o...