《2016年12月四级真题第1套.doc》由会员分享，可在线阅读，更多相关《2016年12月四级真题第1套.doc（13页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、2016年12月大学英语四级考试真题（第一套）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
2、 to explain the reasons for your choice. You should write at least 120 words but no more than 180 words.Part Listening Comprehension (25 minutes)Section ADirections: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news
3、 report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 and 2 are based on the news report you
4、 have just heard.1. A) It was dangerous to live in. B) It was going to be renovated. C) He could no longer pay the rent.D) He had sold it to the royal family.2. A) A strike. B) A storm. C) A forest fire.D) A terrorist attack.Questions 3 and 4 are based on the news report you have just heard.3. A) Th
5、ey lost contact with the emergency department.B) They were trapped in an underground elevator.C) They were injured by suddenly falling rocks.D) They sent calls for help via a portable radio.4. A) They tried hard to repair the elevator.B) They sent supplies to keep the miners warm.C) They released th
6、e details of the accident.D) They provided the miners with food and water.Questions 5 to 7 are based on the news report you have just heard.5. A) Raise postage rates.B) Improve its services.C) Close some of its post offices.D) Redesign delivery routes.6. A) Shortening business hours.B) Closing offic
7、es on holidays.C) Computerizing mail sorting processes.D) Stopping mail delivery on Saturdays.7. A) A lot of controversy will arise.B) Many people will begin to complain.C) Taxpayers will be very pleased.D) Many post office staff will lose their jobs.Section BDirections: In this section, you will he
8、ar two long conversations. At the end of each conversation, you will hear four questions. Both the conversations and the questions, will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter
9、on Answer Sheet 1 with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8. A) He will lose part of his pay.B) He will go through retraining.C) He will be given a warning.D) He will be kept from promotion.9. A) He is always on time.B) He is a trustw
10、orthy guy.C) He is an experienced press operator.D) He is on good terms with his workmates.10. A) She is a trade union representative.B) She is in charge of public relations.C) She is better at handling such matters.D) She is a senior manager of the shop.11. A) He is always trying to stir up trouble
11、.B) He is very close to the manager.C) He is skilled and experienced.D) He is always complaining about low wages.Questions 12 to 15 are based on the conversation you have just heard.12. A) Open.B) Reserved.C) Friendly.D) Selfish.13. A) They talk about the weather.B) They read a book.C) They stay qui
12、et.D) They chat with fellow passengers.14. A) She was always treated as a foreigner.B) She was never invited to a colleagues home.C) She was eager to visit an English castle.D) She was unwilling to make friends with workmates.15. A) Houses are much more quiet.B) They want a garden of their own.C) Th
13、ey want to have more space.D) Houses provide more privacy.Section CDirections: In this section, you will hear three passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the
14、 best answer from the four choices marked A) , B), C) and D) .Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 16 to 18 are based on the passage you have just heard.16. A) They will automatically be given hiring priority.B) They are likely to get m
15、uch higher pay.C) They dont have to go through job interviews.D) They dont have much choice of jobs.17. A) Visit the school careers service.B) Look at school bulletin boards.C) Ask their professors for help.D) Go through campus newspapers.18. A) Helping students find the books and journals they need
16、.B) Helping students arrange appointments with librarians.C) Supervising study spaces to ensure a quiet atmosphere.D) Providing students with information about the library.Questions 19 to 21 are based on the passage you have just heard.19. A) It tastes better.B) It may be sold at a higher price.C) I
17、t is easier to grow.D) It can better survive extreme weathers.20. A) It is immune to various diseases.B) It can grow in drier soil.C) It will replace green tea one day.D) It is healthier than green tea.21. A) It does not have a stable market.B) It does not bring the promised health benefits.C) It ha
18、s made tea farmers life easier.D) It has been well received by many tea drinkers.Questions 22 to 25 are based on the passage you have just heard.22. A) They need decorations to show their status.B) They decorate their homes themselves.C) They prefer unique objects of high quality.D) They care more a
19、bout environment.23. A) They were proud of their creations.B) They could only try to create at night.C) They made great contributions to society.D) They focused on the quality of their products.24. A) Identify fake crafts.B) Make wise choices.C) Design handicrafts themselves.D) Learn the importance
20、of creation.25. A) To preserve the traditional culture.B) To attract foreign investments.C) To arouse public interest in crafts.D) To boost the local economy.Part Reading Comprehension (40 minutes)Section ADirections: In this section, there is a passage with ten blanks. You are required to select on
21、e 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 t
22、he 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 study
23、 26 that belief, questioning whether brains really can be distinguished by gender.In the study, Tel Aviv University researchers 27 for sex differences throughout the entire human brain. And what did they find? Not much. Rather than offer evidence for 28 brains as “male” or “female”, research shows t
24、hat 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-based 29 , many different types of brain cant always be distinguished by gender.While the “average” male and “average” female brain
25、s were 30 different, you couldnt tell it by looking at individual brain scans. Only a small 31 of 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 questioning 32 beliefs about
26、 gender and brain function. But he cautioned against concluding from this study that all brains are the same, 33 of gender. “Theres a mountain of evidence 34 the importance of sex influences at all levels of brain function,” he told The Seattle Times. If anything, he said, the study 35 that gender p
27、lays a very important role in the brain“even when we are not clear exactly how”.A) abnormalB) applied C) briefly D) categorizing E) challenges F) figure G) percentage H) provingI) regardlessJ) searchedK) similaritiesL) slightlyM) suggestsN) tastesO) traditionalSection BDirections: In this section, y
28、ou 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 question
29、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 isnt surprising that youll find plenty of strong opinions about the potential vulnerabilities of popular home-secu
30、rity systems.B The most likely type of burglary (入室盗窃) by far is the unsophisticated crime of opportunity, usually involving a broken window or some forced entry. According to the FBI, crimes like these accounted for roughly two-thirds of all household burglaries in the U.S. in 2013. The wide majori
31、ty 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 doesnt even track those statistics.C One of the main theoretical home-security concerns is whet
32、her or not a given system is vulnerable to being blocked from working altogether. With wired setups, the fear is that a burglar (入室盗贼) 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 e
33、ye on windows, doors, motion, and more. If they detect something wrong while the system is armed, theyll transmit a wireless alert signal to a base station that will then raise the alarm. That approach will eliminate most cord-cutting concernsbut what about their wireless equivalent, jamming? With t
34、he right device tuned to the right frequency, whats 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 theyre not unique to security systems. Any device thats built to receive a wireless signal at a speci
35、fic frequency can be overwhelmed by a stronger signal coming in on the same frequency. For comparison, lets say you wanted to “jam” a conversation between two peopleall youd need to do is yell in the listeners ear.E Security devices are required to list the frequencies they broadcast on-that means t
36、hat a potential thief can find what they need to know with minimal Googling. They will, however, need to know what system they are looking for. If you have a sign in your yard declaring what setup you use, thatd point them in the right direction, though at that point, we are talking about a highly t
37、argeted, semi-sophisticated attack, and not the sort of forced-entry attack that makes up the majority of burglaries. Its 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 a
38、ttacks. SimpliSafe, winner of our Editors Choice distinction, utilizes a special system thats capable of separating incidental RF interference from targeted jamming attacks. When the system thinks its being jammed, itll notify you via push alert (推送警报). From there, its up to you to sound the alarm m
39、anually.G SimpliSafe was singled out in one recent article on jamming, complete with a video showing the entire system being effectively bypassed with handheld jamming equipment. After taking appropriate measure to contain the RF interference to our test lab, we tested the attack out for ourselves,
40、and were able to verify that it is possible with the right equipment. However, we also verified that SimpliSafes anti-jamming system works. It caught us in the act, sent an alert to my smartphone, and also listed our RF interference on the systems event log. The team behind the article and video in
41、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 wouldnt 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 evolv
42、ing, and that it varies slightly form system to system, which means there wouldnt be a universal magic formula for cracking it. Other systems also seem confident on the subject of jamming. The team at Frontpoint addresses the issue in a blog on its site, citing their own jam protection software and
43、claiming that there arent any documented cases of a successful jam attack since the company began offering wireless security sensors in the 1980s.I Jamming attacks are absolutely possible. As said before, with the right equipment and the right know-how, its possible to jam any wireless transmission.
44、 But how probable is it that someone will successfully jam their way into your home and steal your stuff?J Lets 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,
45、hes 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 youre away, so the thief will still need to break in. That means defeating the lock somehow, or break
46、ing a window. Hell need to be jamming you at this point, as a broken window or opened door would normally release the alarm. So, too, would the motion detectors in your home, so the thief will need to continue jamming once hes inside and searching for things to steal. However, hell need to do so wit
47、hout 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 opportunistic smash-and-grab attack that makes up the majority of burglaries. Theyre also only
48、 a single layer in what should ideally be a many-sided approach to securing your home, one that includes common sense things like sound locks and proper exterior lighting at night. No system is impenetrable, and none can promise to eliminate the worst case completely. Every one of them has vulnerabilities that a knowledgeable thief could t