2016.12.7号试题
2016届高三上学期12月联合调研考试数学试卷(理)
数学试卷（理工类）考生注意：1.答卷前，考生务必在答题纸大将姓名、座位号、准考据号等填写清楚。
2.本试卷共有 23 道试题，满分 150 分，考试时间 120 分钟。
一. 填空题 (本大题满分 56 分）本大题共有14 题，只需求直接填写结果，每题填对得4分，不然一律得零分 .1．函数f ( x) x( x) 的反函数是 f(x)_____________ .2、已知a, b, a 和 b 的夹角为，则 a b___________.3、幂函数y f ( x)的图象过点 (, ) ，则 f ( )_________ .4、方程log ( x)log(x) 的解为_______________.5、若直线l的一个法向量n( , ) ，若直线 l 的一个方向向量 d( ,) ，则 l 与 l的夹角 =.(用反三角函数表示 ).6、直线l : x y交圆 x y于 A、 B两点，则AB _______.7、已知,, 且tan()，则 cos.8、无量等比数列a n的前 n 项和为S n，若 S, S，则 lim S n_______ .n9、已知f ( x) kx x 有两个不一样的零点，则实数k 的取值范围是.10、已知a、b、c是ABC 中A、B、 C 的对边，若 a, A，ABC 的面积为，则ABC 的周长为.11 、奇函数f (x)的定义域为 R ，若f ( x)为偶函数，且 f ( )，则f () f () _______.___12、已知等比数列a n的前 n 项和为S n，若S , S , S成等差数列，且a a a，若 S n，则 n 的取值范围为.13、设m R, 过定点A的动直线 x my和过定点 B 的动直线mx y m交于点P，则PA PB 的最大值是.14、设x表示不超出x的最大整数，如,.. 给出以下命题：①对随意的实数x ，都有 x x x ；②对随意的实数x, y ，都有x y x y ；③ lglg lg lg lg；④若函数 f ( x)x x，当 x, n (n N * ) 时，令 f (x)的值域为A，记会合A中元素个数为 a n，则a n的最小值为. 此中全部真命题的序号为.n二．选择题( 本大题满分20个结论是正确的，选对得15、数列a n的前n项和为分）本大题共有 4 题，每题都给出四个结论，此中有且只有一5 分，不然一律得零分.S n n ，则 a 的值为（）A 、B、C、D、 6416、a是直线ax y a和x(a) y a平行且不重合的（）A、充足非必需条件B、必需非充足条件C、充要条件D、既不充足又不用要条件17 、将f ( x)si n x 的图象右移 () 个单位后得到 g( x) 的图象.若满足f (x )g(x )的x , x，有x x 的最小值为，则的值为（）A、B、C、D、18、已知函数e x mx 、 x 、x R ，总有 f ( x )、f ( x2 )、f ( x3 ) 为f ( x)，若对随意e x某一个三角形的边长，则实数m 的取值范围是（）A、,B、 ,C、 ,D、,三．解答题 (本大题满分74 分 ) 本大题共有 5 题，解答以下各题一定写出必需的步骤. 19．（此题共 2 小题，满分12 分。
2016年12月英语六级真题及答案解析
2016年12月英语六级真题及答案解析Part I Writing (30 minutes)Directions: For this part, you are allowed 30 minutes to write a short essay on invention. Youressay should include the importance of invention and measures to be taken to encourageinvention. You are required to write at least 150 words but no more than 200 words.Part Ⅱ Listening Comprehension (30 minutes)Section ADirections: In this section, you will hear two long conversations. At the end of eachconversation, you will hear four questions. Both the conversation and thequestions will be spoken only once. After you hear a question, you mustchoose the best answer from the four choices marked A, B, C and D.Then mark the corresponding letter on Answer Sheet I with a single linethrough the centre.Questions 1 to 4 are based on the conversation you have just heard.1. A. It tries to predict the possible trends of global climate change.B. It studies the impacts of global climate change on people's lives.C. It links the science of climate change to economic and policy issues.D. It focuses on the efforts countries can make to deal with global warming.2. A. It will take a long time before a consensus is reached on its impact.B. It would be more costly to deal with its consequences than to avoid it.C. It is the most pressing issue confronting all countries.D. It is bound to cause endless disputes among nations.3. A. The transition to low-carbon energy systems.B. The cooperation among world major powers.C. The signing of a global agreement.D. The raising of people's awareness.4. A. Carry out more research on it.B. Cut down energy consumption.C. Plan well in advance.D. Adopt new technology.Questions 5 to 8 are based on the conversation you have just heard.5. A. When luck plays a role.B. what determines success.C. Whether practice makes perfect.D. How important natural talent is.6. A. It knocks at your door only once in a while.B. It is something that no one can possibly create.C. It comes naturally out of one's self-confidence.D. It means being good at seizing opportunities.7. A. Luck rarely contributes to a person's success.B. One must have natural talent to be successful.C. One should always be ready to seize opportunities.D. Practice is essential to becoming good at something.8. A. Putting time and effort into fun things is profitable.B. People who love what they do care little about money.C. Being passionate about work can make one wealthy.D. People in need of money work hard automatically.Section BDirections: In this section, you will hear two passages. At the end of each passage, you will hearthree or four questions. Both the passage and the questions will be spoken only once.After you hear a question, you must choose the best answer from the four choices markedA, B, C and D. Then mark the corresponding letter on Answer Sheet 1 with asingle line through the centre.Questions 9 to 12 are based on the passage you have just heard.9. A. The stump of a giant tree.B. A huge piece of rock.C. The peak of a mountain.D. A tall chimney.10. A. Human activity.B. Wind and water.C. Chemical processes.D. Fire and fury.11. A. It is a historical monument.B. It was built in ancient times.C. It is Indians' sacred place for worship.D. It was created by supernatural powers.12. A. By sheltering them in a cave.B. By killing the attacking bears.C. By lifting them well above the ground.D. By taking them to the top of a mountain.Questions 13 to 15 are based on the passage you have just heard.13. A. They will buy something from the convenience stores.B. They will take advantage of the time to rest a while.C. They will have their vehicles washed or serviced.D. They will pick up some souvenirs or gift items.14. A. They can bring only temporary pleasures.B. They are meant for the extremely wealthy.C. They should be done away with altogether.D. They may eventually drive one to bankruptcy.15. A. A good way to socialize is to have daily lunch with one's colleagues.B. Retirement savings should come first in one's family budgeting.C. A vacation will be affordable if one saves 20 dollars a week.D. Small daily savings can make a big difference in one's life.Section CDirections: In this section, you will hear three recordings of lectures or talks followed by three orfour questions. The recordings will be played only once. After you hear a question, youmust choose the best answer from the four choices marked A, B, C and D. Thenmark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 16 to 18 are based on the recording you have just heard.16. A. They should be done away with.B. They are necessary in our lives.C. They enrich our experience.D. They are harmful to health.17. A. They feel stressed out even without any challenges in life.B. They feel too overwhelmed to deal with life's problems.C. They are anxious to free themselves from life's troubles.D. They are exhausted even without doing any heavy work. ~18. A. They expand our mind.B. They prolong our lives.C. They narrow our focus.D.They lessen our burdensQuestions 19 to 22 are based on the recording you have just heard.19. A. It is not easily breakable.B. It came from a 3D printer.C. It represents the latest style.D. It was made by a fashion designer.20. A. When she had just graduated from her college.B. When she attended a conference in New York.C. When she was studying at a fashion design school.D. When she attended a fashion show nine months ago.21. A. It was difficult to print.B. It was hard to come by.C. It was hard and breakable.D. It was extremely expensive.22. A. It is the latest model of a 3D printer.B. It is a plastic widely used in 3D printing.C. It gives fashion designers room for imagination.D. It marks a breakthrough in printing material.Questions 23 to 25 are based on the recording you have just heard.23. A. They arise from the advances in technology.B. They have not been examined in detail so far.C. They are easy to solve with modern technology.D. They can't be solved without government support.24. A. It is attractive to entrepreneurs.B. It demands huge investment.C. It focuses on new products.D. It is intensely competitive.25. A.Cooperation with big companies.B. Recruiting more qualified staff.C. In-service training of IT personnel.D. Sharing of costs with each other.Part Ⅲ Reading Comprehension (40 minutes)Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word foreach blank from a list of choices given in a word bank following the passage. Read thepassage through carefully before making your choices. Each choice in the bank isidentified by a letter. Please mark the corresponding letter for each item on Answer Sheet2 with a single line through the centre. You may not use any of the words in the bankmore than once.Questions 26 to 35 are based on the following passage.It is important that scientists be seen as normal people asking and answering important questions.Good, sound science depends on 26, experiments and reasoned methodologies. It requires awillingness to ask new questions and try new approaches. It requires one to take risks and experiencefailures. But good science also requires 27 understanding,clear explanation and concisepresentation.Our country needs more scientists who are willing to step out in the public 28 and offer theiropinions on important matters. We need more scientists who can explain what they are doing inlanguage that is 29 and understandable to the public. Those of us who are not scientists should alsobe prepared to support public engagement by scientists, and to 30 scientific knowledge into ourpublic communications.Too many people in this country, including some among our elected leadership, still do notunderstand how science works or why robust, long-range investments in research vitally matter. In the1960s, the United States 31 nearly 17% of discretionary (可酌情支配的) spending to research anddevelopment,32 decades of economic growth. By 2008, the figure had fallen into the single33 This occurs at a time when other nations have made significant gains in their own researchcapabilities.At the University of California (UC), we 34 ourselves not only on the quality of our research,but also on its contribution to improving our world. To 35 the development of science from the labbench to the market place, UC is investing our own money in our own good ideas.A. ArenaB. contextualC. ConvincingD. devotedE. DigitsF. hastenG. Hypotheses H. impairingI. Incorporate J. indefiniteK. Indulge L. inertiaM. Pride N. reapingO. WarrantSection BDirections: In this section, you are going to read a passage with ten statements attached to it. Eachstatement contains information given in one of the paragraphs. Identify the paragraphfrom 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 thecorresponding letter on Answer Sheet 2.Are We in an Innovation Lull?[A] Scan the highlights of this year's Consumer Electronics Show ( CES ), and you may get a slightfeeling of having seen them before. Many of the coolest gadgets this year are the same as thecoolest gadgets last year--or the year before, even. The booths are still exciting, and the demosare still just as crazy. It is still easy to be dazzled by the display of drones (无人机),3D printers,virtual reality goggles ( 眼镜) and more "smart" devices than you could ever hope to catalog.Upon reflection, however, it is equally easy to feel like you have seen it all before. And it is hardnot to think: Are we in an innovation lull ( 间歇期) ?[B] In some ways, the answer is yes. For years, smartphones, televisions, tablets, laptops anddesktops have made up a huge part of the market and driven innovation. But now these segmentsare looking at slower growth curves--or shrinking markets in some cases--as consumers are notas eager to spend money on new gadgets. Meanwhile, emerging technologies--the drones,3Dprinters and smart-home devices of the world--now seem a bit too old to be called "the next bigthing. "[C] Basically the tech industry seems to be in an awkward period now. "There is not any one-hitwonder, and there will not be one for years to come," said Gary Shapiro, president and chiefexecutive of the Consumer Technology Association (CTA). In his eyes, however, that doesn'tnecessarily mean that innovation has stopped. It has just grown up a little. "Many industries aregoing out of infancy and becoming adolescents," Shapiro said.[D] For instance, new technologies that are building upon existing technology have not found theirfooting well enough to appeal to a mass audience, because, in many cases, they need to workeffectively with other devices to realize their full appeal. Take the evolution of the smart home,for example. Companies are pushing it hard but make it almost overwhelming even to dip a toe inthe water for the average consumer, because there are so many compatibility issues to thinkabout. No average person wants to figure out whether their favorite calendar software works withtheir fridge or whether their washing machine and tablet get along. Having to install a different appfor each smart appliance in your home is annoying; it would be nicer if you could manageeverything together. And while you may forgive your smartphone an occasional fault, youprobably have less patience for error messages from your door lock.[E] Companies are promoting their own standards, and the market has not had time to choose awinner yet as this is still very new. Companies that have long focused on hardware now have tothink of ecosystems instead to give consumers practical solutions to their everyday problems."The dialogue is changing from what is technologically possible to what is technologicallymeaningful," said economist Shawn DuBravac. DuBravac works for CTA--which puts on theshow each year--and said that this shift to a search for solutions has been noticeable as heresearched his predictions for 2016.[F] "So much of what CES has been about is the cool. It is about the flashiness and the gadgets,"said John Curran, managing director of research at Accenture. "But over the last couple of years,and in this one in particular, we are starting to see companies shift from what is the largest screensize, the smallest form factor or the shiniest object and more into what all of these devices do thatis practical in a consumer's life. " Even the technology press conferences, which have been high-profile in the past and reached a level of drama and theatrics fitting for a Las Vegas stage, have adifferent bent to them. Rather than just dazzling with a high cool factor, there is a focus on thepractical. Fitbit, for example, released its first smartwatch Monday, selling with a clearpurpose--to improve your fitness--and promoting it as a "tool, not a toy. " Not only that, itsupports a number of platforms: Apple's iOS, Google's Android and Microsoft'sWindows phone.[G] That seems to be what consumers are demanding, after all. Consumers are becoming increasinglybored with what companies have to offer: A survey of 28,000 consumers in 28 countries releasedby Accenture found consumers are not as excited about technology as they once were. Forexample, when asked whether they would buy a new smartphone this year, only 48 percent saidyes--a six-point drop from 2015.[H] And when it comes to the hyper-connected super-smart world that technology firms are paintingfor us, it seems that consumers are growing more uneasy about handing over the massive amountsof consumer data needed to provide the personalized, customized solutions that companies needto improve their services. That could be another explanation for why companies seem to bestrengthening their talk of the practicality of their devices.[I] Companies have already won part of the battle, having driven tech into every part of our lives,tracking our steps and our very heartbeats. Yet the persistent question of " Why do I needthat?"--or, perhaps more tellingly, "Why do you need to know that?"--dogs the steps of manynew ventures. Only 13 percent of respondents said that they were interested in buying asmartwatch in 2016, for example--an increase of just one percent from the previous year despite ayear of high-profile launches. That is bad news for any firm that may hope that smartwatches canmake up ground for maturing smartphone and tablet markets. And the survey found flat demandfor fitness monitors, smart thermostats (恒温器) and connected home cameras, as well.[J] According to the survey, that lack of enthusiasm could stem from concerns about privacy andsecurity. Even among people who have bought connected devices of some kind,37 percent saidthat they are going to be more cautions about using these devices and services in the future. A full18 percent have even returned devices until they feel they can get safer guarantees against havingtheir sensitive information hacked.[K] That, too, explains the heavy Washington presence at this year's show, as these new technologiesintrude upon heavily regulated areas. In addition to many senior officials from the Federal Tradeand Federal Communications commissions, this year's list of policy makers also includesappearances from Transportation Secretary Anthony Foxx, to talk about smart cities, and FederalAviation Administration Administrator Michael Huerta, to talk about drones.[L] Curran, the Accenture analyst, said that increased government interest in the show makes senseas technology becomes a larger part of our lives. "There is an incompatibility in the rate at whichthese are advancing relative to the way we're digesting it," he said. "Technology is becomingbigger and more aspirational, and penetrating almost every aspect of our lives. We have tounderstand and think about the implications, and balance these great innovations with thepotential downsides they naturally carry with them. "36. Consumers are often hesitant to try smart-home devices because they are worried aboutcompatibility problems.37. This year's electronics show featured the presence of many officials from the federal government.38. The market demand for electronic devices is now either declining or not growing as fast as before.39. One analyst suggests it is necessary to accept both tlie positive and negative aspects of innovativeproducts.40. The Consumer Electronics Show in recent years has begun to focus more on the practicalvalue thanthe showiness of electronic devices.41. Fewer innovative products were found at this year's electronic products show.42. Consumers are becoming more worried about giving personal information to tech companies to getcustomized products and services.43. The Consumer Technology Association is the sponsor of the annual Consumer Electronics Show.44. Many consumers wonder about the necessity of having their fitness monitored.45. The electronic industry is maturing even though no wonder products hit the market.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions orunfinished statements. For each of them there are four choices marked A, B, C andD. You should decide on the best choice and mark the corresponding letter on AnswerSheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.The Paris climate agreement finalised in December last year heralded a new era for climate action.For the first time, the world's nations agreed to keep global warming well below 2℃.This is vital for climate-vulnerable nations. Fewer than 4% of countries are responsible for morethan half of the world's greenhouse gas emissions. In a study published in Nature Scientific Reports,we reveal just how deep this injustice runs.Developed nations such as Australia, the United States, Canada, and European countries areessentially climate "free-riders": causing the majority of the problems through high greenhouse gasemissions, while incurring few of the costs such as climate change's impact on food and water. In otherwords, a few countries are benefiting enormously from the consumption of fossil fuels, while at thesame time contributing disproportionately to the global burden of climate change.On the flip side, there are many "forced riders", who are suffering from the climate changeimpacts despite having scarcely contributed to the problem. Many of the world's most climatevulnerable countries, the majority of which are African or small island states, produce a very smallquantity of emissions. This is much like a non-smoker getting cancer from second-hand smoke, whilethe heavy smoker is fortunate enough to smoke in good health.The Paris agreement has been widely hailed as a positive step forward in addressing climate changefor all, although the details on addressing "climate justice" can be best described as sketchy.The goal of keeping global temperature rise "well below" 2~C is commendable but the emissions-reduction pledges submitted by countries leading up to the Paris talks are very unlikely to deliver onthis.More than $100 billion in funding has been put on the table for supporting developing nations toreduce emissions. However, the agreement specifies that there is no formal distinction betweendeveloped and developing nations in their responsibility to cut emissions, effectively ignoring historicalemissions. There is also very little detail on who will provide the funds or, importantly, who isresponsible for their provision. Securing these funds, and establishing who is responsible for raisingthem will also be vital for the future of climate-vulnerable countries.The most climate-vulnerable countries in the world have contributed very little to creatingtheglobal disease from which they now suffer the most. There must urgently be a meaningful mobilisationof the policies outlined in the agreement if we are to achieve national emissions reductions whilehelping the most vulnerable countries adapt to climate change.And it is clearly up to the current generation of leaders from high-emitting nations to decidewhether they want to be remembered as climate change tyrants or pioneers.46. The author is critical of the Paris climate agreement becauseA. it is unfair to those climate-vulnerable nationsB. it aims to keep temperature rise below 2℃ onlyC. it is beneficial to only fewer than 4% of countriesD. it burdens developed countries with the sole responsibility47. Why does the author call some developed countries climate "free-riders"?A. They needn't worry about the food and water they consume.B. They are better able to cope with the global climate change.C. They hardly pay anything for the problems they have caused.D. They are free from the greenhouse effects affecting "forced riders".48. Why does the author compare the "forced riders" to second-hand smokers?A. They have little responsibility for public health problems.B. They are vulnerable to unhealthy environmental conditions.C. They have to bear consequences they are not responsible for.D. They are unaware of the potential risks they are confronting.49. What does the author say about the $100 billion funding?A. It will motivate all nations to reduce carbon emissions.B. There is no final agreement on where it will come from.C. There is no clarification of how the money will be spent.D. It will effectively reduce greenhouse emissions worldwide.50. what urgent action must be taken to realise the Paris climate agreement?A. Encouraging high-emitting nations to take the initiative.B. Calling on all the nations concerned to make joint efforts.C. Pushing the current world leaders to come to a consensus.D. Putting in effect the policies in the agreement at once.Passage TwoQuestions 51 to 55 are based on the following passage.Teenagers at risk of depression, anxiety and suicide often wear their troubles like a neon (霓虹灯)sign. Their risky behaviors--drinking too much alcohol, using illegal drugs, smoking cigarettes andskipping school--can alert parents and teachers that serious problems are brewing.But a new study finds that there's another group of adolescents who are in nearly as much dangerof experiencing the same psychiatric symptoms: teens who use tons of media, don't get enough sleepand have a sedentary (不爱活动的) lifestyle.Of course, that may sound like a description of every teenager on the planet. But the study warnsthat it is teenagers who engage in all three of these practices in the extreme who are truly in jeopardy.Because their behaviors are not usually seen as a red flag, these young people have been dubbed the"invisible risk" group by the study's authors."In some ways they're at greater risk of falling through the cracks," says researcher VladimirCarli. "While most parents, teachers and clinicians would react to an adolescent using drugs or gettingdrunk, they may easily overlook teenagers who are engaging in inconspicuous behaviors."The study's authors surveyed 12,395 students and analyzed nine risk behaviors, including excessivealcohol use, illegal drug use, heavy smoking, high media use and truancy (逃学). Their aim was todetermine the relationship between these risk behaviors and mental health issues in teenagers.About 58% of the students demonstrated none or few of the risk behaviors. Some 13% scored highon all nine of the risk behaviors. And 29%, the "invisible risk" group, scored high on three inparticular: They spent five hours a day or more on electronic devices. They slept six hours a night orless. And they neglected "other healthy activities."The group that scored high on all nine of the risk behaviors was most likely to show symptoms ofdepression; in all, nearly 15% of this group reported being depressed, compared with just 4% of thelow-risk group. But the invisible group wasn't far behind the high-risk set, with more than 13% of themexhibiting depression.The findings caught Carli off guard. "We were very surprised," he says. "The high-risk group andlow-risk group are obvious. But this third group was not only unexpected, it was so distinct and solarge--nearly one third of our sample--that it became a key finding of the study. "Carli says that one of the most significant things about his study is that it provides new early-warning signs for parents, teachers and mental health-care providers. And early identification, supportand treatment for mental health issues, he says, are the best ways to keep them from turning into full-blown disorders.51. What does the author mean by saying "Teenagers at risk of depression, anxiety and suicide oftenwear their troubles like a neon sign" (Lines 1 - 2, Para.1 ) ?A. Mental problems can now be found in large numbers of teenagers.B. Teenagers' mental problems are getting more and more attention.C. Teenagers' mental problems are often too conspicuous not to be observed.D. Depression and anxiety are the most common symptoms of mental problems.52. What is the finding of the new study?A. Teenagers' lifestyles have changed greatly in recent years.B. Many teenagers resort to drugs or alcohol for mental relief.C. Teenagers experiencing psychological problems tend to use a lot of media.D. Many hitherto unobserved youngsters may have psychological problems.53. Why do the researchers refer to teens who use tons of media, don't get enough sleep and have asedentary lifestyle as the "invisible risk" group?A. Their behaviors can be an invisible threat to society.B. Their behaviors do not constitute a warning signal.C. Their behaviors do not tend towards mental problems.D. Their behaviors can be found in almost all teenagers on earth.54. What does the new study find about the invisible group?A. They are almost as liable to depression as the high-risk group.B. They suffer from depression without showing any symptoms.C. They do not often demonstrate risky behaviors as their peers.D. They do not attract the media attention the high-risk group does.55. What is the significance of Vladimir Carli's study?A. It offers a new treatment for psychological problems among teenagers.B. It provides new early-warning signals for identifying teens in trouble.C. It may have found an ideal way to handle teenagers with behavioral problems.D. It sheds new light on how unhealthy behaviors trigger mental health problems.Part Ⅳ Translation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese intoEnglish. You should write your answer on Answer Sheet 2.随着生活水平的提高，度假在中国人生活中的作用越来越重要。
2016年度12月大学英语四级真命题及完全答案解析(共两卷)
2016年12月大学英语四级真题（第一套）Part I Writing (30minutes)Directions:For this part, you are allowed 30 minutes to write an essay. Suppose you have two options upon graduation: one is to take a job in a company and the other to go to a graduate school. 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 180 words.Part II 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 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 1and 2 are based on the news report you have just theheard.1. A) It was going to be renovated. C) It was dangerous to live in.B) He could no longer pay the rent. D) He had sold it to the royal family.2. A) A storm. C) A forest fire.B) A strike. D) A Terrorist attack.Questions 3and 4 are based on the news report you have just heard.3. A) They lost contact with the emergency department.B) They were injured by suddenly falling rocks.C) They sent calls for help via a portable radio.D) They were trapped in an underground elevator.4. A) They provided the miner with food and water.B) They sent supplies to keep the miners warm.C) They released the details of the accident.D) They tried hard to repair the accident.Question5 to7 are based on the news report you have just heard.5. A) Raise postage rates. C) Close some of its post offices.B) Improve its services. D) Redesign delivery routes.6. A) Closing offices on holidays. C) Computerizing mail sorting processes.B) Shortening business hours. D) Stopping mail delivery on Saturdays.7.A）A lot of controversy will ariseB) Taxpayers will be very pleasedC) Many people will begin to complainD) Many post office staff will lose their jobsSection BDirections:In this section,you will hear two long conversations.At the end of eachconversation,you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from four choice marked A),B),C) and D).Then mark the corresponding letter an Answer sheet1with a single line though the centre.Question8 to 11 are based on the conversation you have just heard.8.A)He will lose part of his pay. C)He will be given a warning.B)He will go through retraining. D)He is go good terms with his workmates.9.A)He is an experienced press operator. C)He is always on time.B)He is trustworthy guy. D）He is go good terms with his workmates.10.A)She is a trade union representative. C)She is better at handing such matters.B)She is a senior manager of the shop. D)She is in charge of public relation.11.A)He is always trying to stir up trouble.B)He is skilled and experienced.C)He is very close to the manager.D)He is always complaining about low wages.Question12 to 15 are based on the conversation you have just heard.12.A)Open. C)Selfish.B)Reserved. D)Friendly.13.A)They read a book. C)They stay quiet.B)They talk about the weather D)They chat with fellow passengers.14.A)She was unwilling to make friends with workmates.B)She was never invited to a colleague’s home.C)She was eager to visit an English castle.D)She was always treated as a foreigner.15.A) House are much more quiet. C) They want a garden of their own.B) They 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 mustchoose 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 16 to 18 are based on the passage you have just heard.16.A) They will automatically be given hiring priority.B) They don’t have to go through job interviews.C) They are likely to get much higher pay.D) They don’t have much choice of jobs.17.A) Visit the school careers services. C) Look at school bulletin boards.B) Ask their professors for help. D) Go through campus newspapers.18.A) Providing students with information about the library.B) Helping students arrange appointments with librarians.C) Supervising study spaces to ensure a quiet atmosphere.D) Helping students find the books and journals they need.Questions 19 to 21 are based on the passage you have just heard.19.A) It tastes better. C) It is easier to grow.B) It may be sold at a higher price. D) It can better survive extreme weathers.20.A) It can grow in drier soil. C) It will replace green tea one day.B) It is immune to various diseases. D) It is healthier than green tea.21.A) It does not have a stable market.B) It has made tea farmers’life easier.C) It does not bring the promised health benefits.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 care more about environment.B) They decorate their homes themselves.C) They prefer unique objects of high quality.D) They need decorations to show their status.23. A) They made great contributions to society.B) They could only try to create at night.C) They were proud of their creations.D) They focused on the quality of their products.24. A) Identify fake crafts. C) Design handicrafts themselves.B) Make wise choices. D) Learn the importance of creation.25. A) To attract foreign investments. C) To arouse public interest in crafts.B) To preserve the traditional culture. D) To boost the local economy.Part III Reading Comprehension (40 minutes)Section ADirections: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 aletter. 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.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（26）that belief, questioning whether brains really can be distinguished by gender.In the study, Tel Aviv University researchers（27）for sex differences the entire human brain.And what did they find? Not much. Rather than offer evidence for （28）brains 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-based（29）, many different types of brain can’t always be distinguished by gender.While the “average”male and “average”female brains were（30）different, you couldn’t 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 gender and brain function. But he cautioned against concluding from this study that all brains are the same,（33）of gender.“There’s 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 plays a very important role in the brain “even when we are not clear exactly how.”Section BDirections: 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 that you’ll find plenty of strong opinions about the potential vulnerabilities of popular home-security 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 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 (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 eye on windows, doors, motion, and more. If they detect something wrong while the system is armed, they’ll transmit a wireless alert signal to a base station that will then raise the alarm. That approach will eliminate most cord-cutting concerns—but what abouttheir wireless equivalent, jamming? With the right device tuned to the right 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, let’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—that means that a potential thief can find what they need to know with minimal Googling. They will, however, need so 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 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 Editor’s Choice distinction, utilizes a special system that’s capable of separatingincidental 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 handheld 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’santi-jamming system works. It caught us in the act, sent an alert to my smartphone, 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 in 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 Frontpoint addresses the issue in a blog on its site, citing their own jam protection software and claiming that there aren’t any documentedcases of 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, 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’ll 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 he’s inside and searching for things to steal. However, he’ll need to do so without tripping the anti-jamming system, the details of which he almost certainly does now 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-grabattack that makes up the majority of burglaries. They’re also only 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 theoretically exploit.A good system is one that keeps that worst-case setting as improbable as possible while also offering strong protection in the event of aless-extraordinary attack.36. It is possible for burglars to make jamming attacks with the necessaryequipment and skill.37. Interfering with a wireless security system is similar to interfering witha conversation.38. A burglar has to continuously jam the wireless security device toavoid triggering the alarm, both inside and outside the house.39. SimpliSafe provides devices that are able to distinguish incidentalradio interference from targeted jamming attacks.40. Only a very small proportion of burglaries are committed by technical means.41. It is difficult to crack SimpliSafe as its system keeps changing.42. Wireless devices will transmit signals so as to activate the alarm oncesomething wrong is detected.43. Different measures should be taken to protect one’s home fromburglary in addition to the wireless security system.44. SimpliSafe’s device can send a warning to the house owner’s cellphone.45. Burglars can easily get a security device’s frequency by Internet search.Section CDirections:There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A),B),C) and D).You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.As a person who writes about food and drink for a living. I couldn’t tell you the first thing about Bill Perry or whether the beers he sells are thatgreat. But I can tell you that I like this guy. That’s because he plans to ban tipping in favor of paying his servers an actual living wage.I hate tipping.I hate it because it’s an obligation disguised as an option. I hate it for the post-dinner math it requires of me. But mostly, I hate tipping because I believe I would be in a better place if pay decisions regarding employees were simply left up to their employers, as is the custom in virtually every other industry.Most of you probably think that you hate tipping, too. Research suggests otherwise. You actually love tipping! You like to feel that you have a voice in how much money your server makes. No matter how the math works out, you persistently view restaurants with voluntary tipping systems as being a better value, which makes it extremely difficult for restaurants and bars to do away with the tipping system.One argument that you tend to hear a lot from the pro-tipping crowd seems logical enough: the service is better when waiters depend on tips, presumably because they see a benefit to successfully veiling their contempt for you. Well, if this were true, we would all be slipping a few 100-dollar bills to our doctors on the way out their doors, too. But as it turns out, waiters see only a tiny bump in tips when they do an exceptional job compared to a passable one. Waiters, keen observers ofhumanity that they are, are catching on to this; in one poll, a full 30% said they didn’t believe the job they did had any impact on the tips they received.So come on, folks: get on board with ditching the outdated tip system. Pay a little more upfront for your beer or burger. Support Bill Perry’s pub, and any other bar or restaurant that doesn’t ask you to do drunken math.46. What can we learn about Bill Perry from the passage?A) He runs a pub that serves excellent beer.B) He intends to get rid of the tipping practice.C) He gives his staff a considerable sum for tips.D) He lives comfortably without getting any tips.47. What is the main reason why the author hates tipping?A) It sets a bad example for other industries.B) It adds to the burden of ordinary customers.C) It forces the customer to compensate the waiter.D) It poses a great challenge for customers to do math.48. Why do many people love tipping according to the author?A) They help improve the quality of the restaurants they dine in.B) They believe waiters deserve such rewards for good service.C) They want to preserve a wonderful tradition of the industry.D) They can have some say in how much their servers earn.49. What have some waiters come to realize according to a survey?A) Service quality has little effect on tip size.B) It is in human mature to try to save on tips.C) Tips make it more difficult to please customers.D) Tips benefit the boss rather that the employees.50. What does the author argue for in the passage?A) Restaurants should calculate the tips for customers.B) Customers should pay more tips to help improve service.C) Waiters deserve better than just relying on tips for a living.D) Waiters should be paid by employers instead of customers. Passage TwoQuestions 51 to 55 are based on the following passage.In the past, falling oil prices have given a boost to the world economy, but recent forecasts for global growth have been toned down, even as oil prices sink lower and lower. Does that mean the link between lower oil prices and growth has weakened?Some experts say there are still good reasons to believe cheap oil should heat up the world economy. Consumers have more money in their pockets when they’re paying less at the pump. They spend that money on other things, which stimulates the economy.The biggest gains go to countries that import most of their oil like China, Japan, and India, But doesn’t the extra money in the pockets of those countries’consumers mean an equal loss in oil producing countries, cancelling out the gains? Not necessarily, says economic researcher Sara Johnson. “Many oil producers built up huge reserve funds when prices were high, so when prices fall they will draw on their reserves to support government spending and subsidies(补贴) for their consumers.”But not all oil producers have big reserves, In Venezuela, collapsing oil prices have sent its economy into free-fall.Economist Carl Weinberg believes the negative effects of plunging oil prices are overwhelming the positive effects of cheaper oil. The implication is a sharp decline in global trade, which has plunged partlybecause oil-producing nations can’t afford to import as much as they used to.Sara Johnson acknowledges that the global economic benefit from a fall in oil prices today is likely lower than it was in the past. One reason is that more countries are big oil producers now, so the nations suffering from the price drop account for a larger share of the global economy. Consumers, in the U.S. at least, are acting cautiously with the savings they’re getting at the gas pump, as the memory of the recent great recession is still fresh in their mind. And a number of oil-producing countries are trimming their gasoline subsidies and raising taxes, so the net savings for global consumers is not as big as the oil price plunge might suggest.51. What does the author mainly discuss in the passage?A) The reasons behind the plunge of oil prices.B) Possible ways to stimulate the global economy.C) The impact of cheap oil on global economic growth.D) The effect of falling oil prices on consumer spending.52. Why do some experts believe cheap oil will stimulate the global economy?A) Manufacturers can produce consumer goods at a much lower cost.B) Lower oil prices have always given a big boost to the global economy.C) Oil prices may rise or fall but economic laws are not subject to change.D) Consumers will spend their saving from cheap oil on other commodities.53. What happens in many oil-exporting countries when oil prices go down?A) They suspend import of necessities from overseas.B) They reduce production drastically to boost oil prices.C) They use their money reserves to back up consumption.D) They try to stop their economy from going into free-fall.54. How does Carl Weinberg view the current oil price plunge?A) It is one that has seen no parallel in economic history.B) Its negative effects more than cancel out its positive effects.C) It still has a chance to give rise to a boom in the global economy.D) Its effects on the global economy go against existing economic laws.55. Why haven’t falling oil prices boosted the global economy as they did before?A) People are not spending all the money they save on gas.B) The global economy is likely to undergo another recession.C) Oil importers account for a larger portion of the global economy.D) People the world over are afraid of a further plunge in oil prices.Part IV Translation (30minutes)Directions: For this part,you are allowed 30minutes to transtate a passage from Chinese into English.You should write your answer on Answer Sheet 2.在中国文化中，红色通常象征着好运、长寿和幸福，在春节和其他喜庆场合，红色到处可见。
高中英语真题-2016届高三12月统一考试
2016届高三12月统一考试第一部分听力（共两节，满分30分）做题时，先将答案标在试卷上。
录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. When is Cold Feet and The Lost Soul shown？A．Today B．On Thursday C．On Saturday．2. Where does the man want to go？A．To a bookstore B．To a chemist’s C．To a shoemak er’s．3. How Old was the man when he went to Indonesia？A. 18B. 19C. 20．4. What does the woman advise the rnan to do？A ．Drink less． B．See a doctor C．Stop smoking．5. What is the man？A ．A teacher B．A customer C．A waiter．第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。
每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料，回答第6-8题。
6. What do you think the woman is?A. a landladyB.A workerC.A housewife7. Where does the woman live now?A. Out side the cityB. In the cityC. Near the school8.What does the woman want to do?A. Find an apartmentB. Decorate her roomC.Buy a new h ouse听第7段材料，回答第9-10题。
2016年12月四川省属事业单位公开招聘考试《综合知识》真题及详解【圣才出品】
2016年12月四川省属事业单位公开招聘考试《综合知识》真题及详解（时间：120分钟满分：100分）一、判断题（对下列命题作出判断，正确的在答题卡上相应题号后涂“A”，错误的涂“B”。
全部涂“A”或“B”，均计为0分。
共30题，每题1分，共30分）1．李某辞职后，利用保留盖有原单位甲公司公章的空白合同书和授权委托书与不知情的乙公司签订了一份合同。
乙公司要求甲公司履行相关义务，甲公司不应履行。
（）【答案】B【解析】表见代理，是指虽然行为人事实上无代理权，但相对人有理由认为行为人有代理权而与其进行法律行为，其行为的法律后果由被代理人承担的代理。
可见，李某构成表见代理。
表见代理从广义上看也是无权代理，但是为了保护善意第三人的信赖利益与交易的安全，法律强制被代理人承担其法律后果。
故由甲公司承担责任。
因此本题说法错误。
2．甲与乙2016年12月1日约定，如果乙死亡，甲就帮乙扶养其母亲。
甲乙约定的是期间不是时间。
（）【答案】A【解析】期间的意思在法律上等同于期限。
甲和乙约定“乙死亡”后，由甲帮乙扶养其母亲，但乙的死亡时间是不确定的。
故甲乙约定的不是时间。
死亡时间不确定，但死亡是必然会到来的，直到死亡完成，甲才会帮乙扶养其母亲。
所以甲乙约定的是期限（期间）而不是时间。
因此本题说法正确。
3．甲公司培育的一种可以净化空气的树木新品种不能授予发明专利。
（）【答案】A【解析】《中华人民共和国专利法》第二十五条规定，对下列各项，不授予专利权：（1）科学发现；（2）智力活动的规则和方法；（3）疾病的诊断和治疗方法；（4）动物和植物品种；（5）用原子核变换方法获得的物质；（6）对平面印刷品的图案、色彩或者二者的结合作出的主要起标识作用的设计。
因此本题说法正确。
（备注：2017年10月1日起实施的《中华人民共和国民法总则》已将植物新品种纳入知识产权保护范围。
）4．单位犯罪时，单位与直接负责的主管人员、直接责任人员构成共同犯罪。
说明文3 说明方法及其作用
• 种差：锐角为70°32′、钝角为109°28′、三个菱形面 • 属概念：六角柱状体 • 确定句式：蜂窝结构是……的……
实战演练 真题再现 突破一：为事物下定义
• 《高明的建筑大师》T3 • 3、根据文意，给"蜂窝结构"下一个定义。(不超 过35个字)(4分) • 明确种差与属概念 • 确定句式：PM2.5是……的…… • 语言表述——要素齐备，表达通顺
考点综述：鄂市历届考题再现
考点 真题 (2)说明方法 2016.12（2分）选择题 辨析及作用 2015.10（2分）选择题
2014.10（2分）选择题 2013. 7（2分）选择题 2012. 7（2分）简答题
考点
具体题型
是（选择题） ③为某个事物下定义
(2)说明方法 ①判断一段话的说明方法并点明其作用 辨析及作用 ②下列关于文意的理解，表述正确的一项
实战演练 真题再现 突破一：为事物下定义
• 《高明的建筑大师》T3
• 3、根据文意，给"蜂窝结构"下一个定义。 (不超过35个字)(4分) • 明确种差与属概念 • 确定句式：PM2.5是……的……
实战演练 真题再现 突破一：为事物下定义
• ②什么是 18世纪初，一个名叫马拉尔奇的法国人，精确测算 • PM2.5？在空气动力学和环境气象学中， 了蜜蜂蜂窝的大小。他发现，构成每个蜂窝底的三个菱 颗粒物是按直径大小分类的，粒径小于100微米 形面的角度大小是一样的：锐角为70°32′，钝角为 的称为“TSP”，即总悬浮物颗粒；粒径小于 10 109°28′。马拉尔奇把测算的数据公布于世。 • 微米的称为“PM10”，即可吸入颗粒物；粒径小 后来，物理学家列奥廖拉看到了这些数据。他对这 个固定角度很感兴趣，于是请大数学家克尼格帮忙计算： 于 2.5微米的称为“PM2.5”，即可入肺颗粒物， 在建筑上，要用多大角度的菱形面组成六角形蜂窝结构 它是构成雾霾的主要物质。 时，用料最省，而得到的容量却最大。 • ......这种六角柱状体的蜂窝......
2016年12月A级试题与答案解析
Directions: Tliis pa r t is to test your listening ability. It consists of 4 sections.f20 rninut es jDirections: Tl-i i s section is to test you1·ability to understand slwrt dialogues. There are 5 recorded d ialogues in it. After ea c h dialogue, there is a recorded question. Both th e dialogues andquest-ions wi,l l be spoken only once. WI叨n you h�ar a q u e s l ion, yov,should decide on theco rre?t an,5wer介om the 4 choices marked AJ, BJ, CJ and DJ giv印in you,r test paper.珈n you should mark the corresponding letter on the Answer Sheet with a. single line加ough,ti花Ce?ite代Example: You will hea1勹You will re砬：A) New York C i ty.C)心1air trip.B)An evening party.D)The man's job.肝01n t如dialogue we learn tJ迈t t如man is to take a flight to New York. Therefore, CJ An air t亢:p is the co竹ect answe1". You s加uld1nark C J on the Answer Sheet with a single line through the center.}low the test will begin.1.A) The brand image.B)The marketing strategy.2.A) Tele p hone bills.B)Online shoppi ng.3.A) On the third floor.B)On the fifth floor.4.A) She doesn't like the new house.B)She can't help the man.5.A) Write a report.B)Book a flight.S ec tioC)The sales plan.D)The company culture.C)Telephone banking.D)Credit cards.C)On the sixth floor.D)On·the eighth floor.C)She will go to the concert.D)She will be away on business.C)Attend a meeting.D)Meet an engineer.Directions: This section is to test your ability to unders°tand short conversations. The r e are 2 recorded conversations in it. After each conv钉sation,there are some recorded questions. Both theconversations and questions will be spoken印o times. tVhen you hear a question, yoit砌u以如ci也on t如correct answer from the 4 choices mark e d A), BJ, C) and DJ giv切i iny our t est paper. Then you s加uld mark the corresponding letter on the A11'8wer Sheet with asingle line through the center. Now listen to the conversations.C onv e rsation 16.A) Selling sports cars.B)Working in a news agency.7.A) Interesting.B)Challenging.8.A) A fashion designer.B)A bank clerk.C)Doing logistics.D)Writing con1puter progra1ns.C)Tiring.D)Rewarding.C)A "fV host.D)A sales n1anager.Con v e r s a tion 29.A) His water bill.B)His gas bill.10.A) He has alrea dy p aid the bill.B)He has 1nove d to a new house.C) His phone bill.D)His electri city bill.C)He has been away for two wee ks.D)He has been abroa d for the whol e mont h.Section CD irections: In t his sectio n you will hear a rec orded short passage. The passage is printed in the testpaper, but with some words or phrases missing. The passage will be read two times. Youare required t o put the niissing words or phrases on the Answer Sheet in order of加numb砑ed blanks acc01准ding to what you hear. Now the passage will begin.Good aften1oon passengers. This is the pre -boarding announcement for flight 89B to Moscow, We are now 11 those passenger飞with small children, and any passengers requir i ng special邸sistance, to begin bo扛ding at tllis time. Please have your 12 and identification ready. Regular boarding will begin in approxin1ately ten minutes time. Thank you.This is the final boar d in g call for passengers Eric and Fred Collins booked on flight 89B to Moscow. Please proceed to 13 immediately. The final checks are being 14 and the cap1:ain will order for the doors of the aircraft to close in approximately five minutes time. I 15 . This is the fi-nal boar d ing call for .Eric and Fred Collins. Thank you.SectionDirections: This section is to test your ability to comprehend s加rt passages. You will hear a recorded pass叨e.After that you will hear five questions. Both the passage and the questions will beread two times. When you. hear a question, you s加uld complete the answer to it with aword or a s加rt phrase (in no more than 3 W()rds). The questions ci n d incomplete a沁沈uersare p忧nted in your test paper. You s加uld w忧te your answers on the Answer Sheet correspondingly. Now listen to the passage.16.What is the purpose of the party?To to Mr. Smith.17.What new position is Mr. Smith going to take?The18.How long has Mr. Smith been working in the present office?For19.W匝t,has impressed the speaker and his colleagues most?Mr. Smit h's20.W地t does the speaker say at the end of the speech?He hope s to of New York's branch.with lV f r. Snuth regulru·ly.Par t IIand kindness.tru c tur e [10 n1i nut es]Directions: This part is to test y our ab ilit y to co ns t1邓ct gr a mmat i cally c01、r ect s entences. It cons i sts of2 sections.Se cti on ADirections: In this section, t加re are 10 i n com p le t e se ntences. Y ou a r e r e q u ir e d to complete each one by必ciding on t加mos t approp忧ate word o r w o rd,s from the 4 choices marked A), BJ, CJ andD). Tlien you should 1narlc·t h e co订esponding lette r on th e Answer S加et with a single Unethrough the center.21.Do you think t11e new engineer can help rne _ my operating skills?A)itnproves B)in1proved C)improve D)ha__s improved22.Tltls store doesn't sell funtltnre, but the one across the street__,__.A)is B)will be C)do D)does23.Do you have any idea about how rnany companies in this office bui皿ng?A)there ru·e B)are there C)there is D)js there24.The present ation of your product is so importa nt it often determines whether a customerbuys from you.A)th扣1.B) that C) unless D) if25.If I tl1ey were on sale online, I wouldn't have bought the traveling ?ags in this store.A)know B)即ew C)had. known D)have known26.You need to c011Sider either a paid or v9lunteer bridge job while _ full-time work.A)to seek B)sought C)seek D) seeking27.My boss refused to give me a pay rise, no matter hard I worked.A)how B)where.C) what D) when28.Since the beginning of 2013, tl1ese regul ations·in most workplaces across the country.A)will be introduced C)have be en introducedB)are introduced D)were introduced29.The government believes that local people will welcome the decision,will bring more jobopportunities to the city.A)that B)where C)what D)which30.You are likely the job offer as you have some work experience in this business.A)ge ttin g B)to get C)get D)gotSection BDirections: There are 5 n complete statements here. You s加uldfi l l n·each blank ivi t h the严声fo-1讥of the word g v en n brackets. Write the word o r words n the cor r espondi n g sp ace on theAnswer Sheet.31.A (de也il)list of all patient.s was kept by the mirsmg staff m the hospital.32.Our clients (surprise)·by the level of support we can offer m such an efficient way.33.Their hard work was beginning to pay off, and they believed that the future would be (an1az-mg) bright.34.The (announce)percent.of the decision has sent the company s shai·e s goiI1g up as n1uch as 1035.Buying insurance through your business can be (cheap)th邸bti_vil1g邸individual policyfor yourself.P ar t III Read i ng Comnrehensio [ 40 n1i nutes] Directions: Thi s part s to test your read n g ability. Tl: 砑e a1嘈e5 tasks for you to juljUl. You should re叫t he re叫n gma t eria ls c ar� 肛U y and do the tasks as you are切st1邓ucted.Ta s k 1Directions: After 1、eading加fo ll o wing passage, you will find 5 questions o r u n finished statement s, nu1nbered 36 to 40. F o r e ach questi o n or statement, there are 4 clwices marked A), BJ, CJ吓d D). You slwuld mak e tli e co订eel clwice a,n d mark t朊corresponding letter on the A nSWe?" S加el with a sing l e l切e through the center.The holidays ru·e the most wasteful tin1e of the year. The amount of waste produced increases by 1nore than 25% fr o m Thanksgivi11g to New Year's Day. Wa s te from shopping bags alone amounts to four ntillion t011S il1 the U.S. 扣1d28 billion pow1ds of food is w邸ted annually. That's about 100 pounds per pe岱o n.N o w for the good news. You cru1 simplify the holidays, <lo some即ng about the amount of waste. Most issues sruTotmding food safety and food waste involve leftovers (剩饭). Plan ahead for the n皿ber of people you "\\讥be fee邮g,including a day or two of leftovers, but don't try to keep food too long. Prepa.J.i11g the 1ight皿ow1t of food will keep everyone feeling well and eliminate the need to throw away e邓ra food tltis tilne of year.Plan thoughtfully when giving gifts. Waste-free gifts of time and talent are appreciated. Tickets to concerts, the zoo, 1110,ries or sporting events make fun gifts and don't come w i th any waste."'T r app m g pape r can be recycled as long as it isn't the metal variety. Better yet, reduce waste by 丽apping gifts in shopping bags or other reusable items, to save the wrapping part of the package.36.皿at is said about holidays according to the passage?A)28 billion pounds of food is wasted.·C) They are the most wasteful tiine of the year.B)They are the busiest time of the year.D)4 million tons of shopping bags are consumed.37.What does the writer mean by say in g "simplify the holidays" (Para. l)?A)Spending the holidays in a simple way.B)Preparing enough food for the holidays.C)Making the holidays as comfortable as possible.D)Saving as much money as possible for the holidays.38.According to the passage, leftovers are most likely to cause issues ofA)food price C)food�afety and wasteB)food delivery D)food quality·and cooking39.According to the last paragraph, you are advisedA)not to use shoppi n g bags for gifts C)not to use anything made of plasticsB)to use reusable items to wrap gifts D)to use packaging boxes made of wood40.The passage is mainly aboutA)when to buy Thanksgiving gifts C)how to spend New Ye虹s DayB)how to reduce wastes in holidays D)when to handle leftover foodT a s k 2Directions: This脏k is the same as Task 1. The 5 questions or unfinished stat彻nents a戏如1,mbered41 to 45.In a P residents Club, you cmlld actually get some work done at the airport if you wanted to. Check your voice mail, write a report, hold a meeting, or take some time to relax between l ights. Whether your ob jective is to get some work done or simply escape the c row ds in the airport, otu-eAl)erienced Presidents Club staff will ensure that your needs are met f r om the mmnent you enter any of 01u-26 Clubrooms. From the Presidents Club, our agents c�n even check y ou h\ for yo1u-flight and co呻m yo ur seat assigrunent. You can also visit our 40 lounges wo r ldwid e, in cluding all d on1estic Nor小west WorldClubs locations.Om·Presidents Club lounges扛e newer and better Lhan ever, which means there h郘never b e en·a better ti1ne, or better reason, to join.师etl1er you t ravel a lone or-w ith ot h e r s, th e u n iqu e atmospher e of the Presidents Club is th e p erfeet place to e可oy a little plivacy, get work done, or simply relax. A s a Presidents Club member, you may entertaiJ.1 two陌ends or bu smess asso c ia t es, or y our immediate family, anytime you visit a Presidents Club.To make the Presidents Club even 1nore comfortable, we recently updated many of our Clubrooms. Our Club rooms'fe a皿es皿lude:eA v面ety of complim叨如y(免费享用的）wit1e and beer selections•Bar ru·e as designed面th画que local the1nes (主题）Con1pllinen团y soft d1inks, juice, coffee, and light snacksTelevision vie,.\ring areas where you and yom、family can watch the latest movies or shows.41.In the Clubrooms, the 1nen1bers of the Presidents Club can.A) hold a pa i书C)give a performanceB)deliver a lee画e D)have some work done42.According to the first paragraph, the Club s尥ff canA)help club men1bers confinn seats on flightsB)如ve club me1nbers to the airportC)book a hotel room for club membersD)tell club members how to use the clubrooms43.The writer believes now is the best time to join the club because.A)the staff members are all youngB)the members can ertjoy more benefitsC)the membership fees are lower than ever beforeD)the lonnges are newer and better than ever before44.According to the _passage, in the Clubrooms you canA)e可oy free wine, beer and soft drinksB)make long-dis也nee calls free of chargeC)get discount coupons for shoppingD)meet with local artis岱45.W迤t is the passage mainly about?A)The obligations of the Presiden区Club members.B)The process of joining the Presidents Club.C)The benefits for the Presiden区Club members.D)The facilities in the Presidents Clubrooms.Task 3Directions: Read the炉肋wing pa ss ag e. Af te r reading it, you are required to complete the outl切e b e l o w it (No.46 lo No.50). You should write your answers briefly (in 110 more than three words)叨the Answe r Sheet correspondingly.SpeedFixToolW hy not t ry ou r Spee d Fix'l,ool? It will sh ow you any errors that are slowing yotu·syste1n do\\'ll, an d once t hey're fixed you may b e su rp rise d at just how fast you r computer really c叩be.That's why more and more people ar e using SpeedF ix T ool instead of spending $150 p e r_ hour for PC repa江or $1,000 for a new computer.Right no,v·you can downl oad t l1e diagn o s t ic (诊断的）t ool for free by cli ck ing here. If you lik e wha t you see, you'll have the choice to upgr ade to the t op ver si o n -which at $29.97 i s a bargain c ompa r e d to the alternatives.You should keep tl1e softwar、e iI1Stalled and皿1a click-through about eve ry 30 days to rnaint.a in t o p performance. Many use1"S don't realize how much faster小eir machine could be until after the y run th e repair tool.Click here to download SpeedFixTool w血e it's still offering the free a n alysis—the promotion ends on March 27, 2016, so get it while you still can.SpeedFixToola diagnostic -toolUse: find and fix tl1e errors小at are slowing down 46Dow血ading cost: for 4 7Cost of upgrading to the top version: 48Maintaining top performance: Running a click-through about 49 daysPromotion period: up to 50Ta s k 4Directions: 加following is a list of terms related to accounting. Ajl应reading it, you are required to find the i芘ms equivalent to those given in Chinese in the table below. Then you shouldmark the corresponding let阮s with a single lett窃through the cen阮in order of the numbe1攻ed blanks, 51 through 55, on the Answ砑Sheet.A—accounting system B-financial forecast C—balance sheetD-rental incomeE-cash discount F—return of investment G—sales joum.alH-operating activities I-investing activities Exam ples: (C)资产负债表J-fixed assetsK—net profitL-l;>ad debtsM—capital stockN—turnover taxO—cash flowP—internal control structureQ—gross profi t(M)股本51.(52 ..(53. (54. (55. ( ）毛利润）租金收入）投资回报）财务预测）营业税(（（（(）会计系统）坏账）现金流转）销售日志）经营活动Task 5Directions: Read the following passage. Afte r reading it, you should giv e b忧ef a讼swers to the 5 questions (No.56 to No. 60) t加t follow. The answe1、s(i切110more tha,, 3 words) shoulcl be w戊tt砌可'te r the correspondin g numbe r s on the A nswer Sheet.Important Notice'Please be advised: tl1e annual testing of the builcling's fire and l if e s afety system will be conducted on'\\T e如esday,December 7, 2016 between 8:00 a.m. -5:00 p.m.Each floor w川be tested to be ce呻that the frre and life safety system is workin g properly.Prior to tes血g,an ai111om1cen1ent will be made, notifying (通知）you that testing will s扫rt.i 11 The test w诅consist of flasl血g lights and an alarm with voice alert加structions.The alarm will be LOUD and is for tes血g pmpose 011ly.P lease be awar·e the fire do01-s o n each floor's elevator lobby may be closed. Ple邸e p l an acco r画gly. If the fire doors iI1 the elevator lobby扛e closed, ple邸e open them t o gain access to the elevator."'e appreciate your patience 011d will conduct the testing邸qui c kly邸possible.If you have any q ue stions, ple ase contact tl1e Management Team at 703-549-9400.Thank you for your cooperation!56.When w诅the annual testing be conducted?On Wednesday,57.Why w出the system on each floor be tested?2016 between 8:00 am to 5:00 p.m.To make sure the fire and life safety system is58.How will people be notified that testing will begin?Through· before testing.59.What should you do if the fire doors in the elevator lobby are closed?Open the fire doors to the elevator.60.What would you do if you have any questions?Contact at 703-549-9400.a rans l a t ion—Engli s h into Chinese [25 m in u t es] Directions: This part, numbered 61 through 65, is to test your ability to translate English into Ch切ese.After each of the sentences numbered 61 to 64, you will read three choices of suggestedtranslation marked AJ, BJ and CJ: You should choose the best translation and mark theco竹鼻esponding比tter on your Answer Sheet with a single line through t he cen砌·.A奴i fi砑the paragraph numbered 65, write your translation in the corresponding space on theTranslatio叨Composition Sheet.61.Thousands of reports and maps have been scanned in and used to make our GPS devices as accurate as possible.A)我们用GPS设备制作了成于上万份报告和地图，用来预测未来的天气趋势。
2016届高三12月月考文科综合试卷
新洲职高2016届高三12月月考文科综合试卷（考试时间：150分钟 试卷满分：300分）★祝考试顺利★第Ⅰ卷(选择题 共140分)本卷共35个小题，每小题4分，共140分。
在每小题给出的四个选项中，只有一项是符合题目要求的。
下图为我国某省人口数据统计图，近年全国人口自然增长率为0.5%左右，据此回答1～2题。
1.关于该省人口状况叙述正确的是A ．常住人口减少是由于人口自然增长率下降B ．城市人口比重上升是由于人口自然增长C ．劳动力不足，劳务输出数量减少D ．目前人口出生率低、死亡率低2.解决该省目前人口问题的对策最可行的是 A ．鼓励生育 B ．推迟退休年龄 C ．接纳外来移民 D ．完善社会养老保障体制下图为某岛屿简图，该岛屿中部多山，降水大多在1000 mm 以上，东北部和西南部降水差异较大。
读图完成3～6题。
3．影响图示地区降水差异的降水类型是A ．对流雨B ．锋面雨C ．地形雨D ．台风雨 4．对该岛屿的说法不正确的是A ．人口稀少B ．地势崎岖C ．地震频繁D ．属大陆岛 5．全球变暖对该岛的影响最可能的是A ．山顶冰川融化B ．农作物产量增加C ．植被更加茂密D ．风暴潮频次增多6．推测该岛屿东西部的两个国家采用的时间分别比国际标准时间 A ．晚4小时、晚5小时 B ．晚5小时、晚6小时 C ．早4小时、早5小时 D ．早5小时、早6小时下表为“我国某纬度附近甲乙丙三个省会（自治区首府、直辖市）城市的气候资料”，据此分析回答7-8题。
7．“某纬度”可能是A ．23.5°NB ．30°NC ．35°ND ．40°N8．甲所在省区农牧业的主要特色是A ．坝子农业、山地牧业B ．灌溉农业、草原牧业C ．绿洲农业、山地牧业D ．河谷农业、高寒牧业下图为某城镇年内风频统计及工业区划示意图，读图回答9～11题。
9.对于该城镇的说法正确的是A ．工业区位较为合理B ．一定位于南亚C ．东南部适宜规划仓储物流中心D ．没有商业中心10.新兴国家快速城镇化过程中，在城市中出现一些问题，下面描述与实际最不相符的是 A ．无序扩张、环境质量下降 B ．交通拥堵，住房紧张 C ．教育配套滞后，学位不足 D ．劳力紧缺，退休年龄推迟11.下列四幅气温垂直分布图反映了该城镇一次雾霾天气的生消过程，顺序正确的是① ② ③ ④A ．①②③④B ．②③④①C ．③④①②D ．④①②③12.党的十七届六中全会提出文化强国目标之后，股市迅速做出了反映，文化传媒产业板块 的股票价格整体上涨近25%。
2016年12月大学英语四级考试真题试题(第二套).doc
2016年12月大学英语四级考试真题(第2套)Part IWriting(30 minutes)Directions: For this part, you are allowed 30 minutes to write an essay. Suppose you have twooptions upon graduation: one is to take a job in a company and the other to go to agraduate school. You are to make a choice between the two. Write an essay to explain thereasons for your choice. You should write at least 120words but no more than 180words.Part ⅡListening Comprehension(25 minutes )Section ADirections: In this section, you will hear three news reports. At the end of each newsreport, you will hear two or three questions. Both the news report and thequestions will be spoken only once. After you hear a question, you mustchoose the best answer from the four choices marked A, B, C and D .Then mark the corresponding letter on Answer Sheet I with a single linethrough the centre. Questions 1 and 2 are based on the news report you have just heard.1. A. T o satisfy the curiosity of tourists.B. To replace two old stone bridges.C. To enable tourists to visit Goat Island.D. T o improve utility services in the state.2. A. Countless tree limbs.B. A few skeletons.C. Lots of wrecked boats and ships.D. Millions of coins on the bottom.Questions 3 and 4 are based on the news report you have just heard.3. A. It suspended diplomatic relations with Libya.B. It urged tourists to leave Tunisia immediately.C. It shut down two border crossings with Libya.D. It launched a fierce attack against Islamic State.4. A. Advise Tunisian civilians on how to take safety precautions.B. Track down the organization responsible for the terrorist attack.C. Train qualified security personnel for the Tunisian government.D. Devise a monitoring system on the Tunisian border with Libya.Questions 5 to 7 are based on the news report you have just heard.5. A. An environment-friendly battery.B. An energy-saving mobile phone.C. A plant-powered mobile phone charger.D. A device to help plants absorb sunlight.6. A. While sitting in their school's courtyard.B. While playing games on their phones.C. While solving a mathematical problem.D. While doing a chemical experiment.7. A. It increases the applications of mobile phones.B. It speeds up the process of photosynthesis.C. It improves the reception of mobile phones.D. It collects the energy released by plants.Section BDirections: In this section, you will hear two long conversations. At the end of each conversation,you will hear four questions. Both the conversation and the questions will be spoken onlyonce. After you hear a question, you must choose the best answer from the four choicesmarked A, B, C and D. Then mark the corresponding letter on Answer Sheet 1with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8. A. He visited the workshops in the Grimsby plant.B. He called the woman and left her a message.C. He used stand-ins as replacements on all lines.D. He asked a technician to fix the broken production line.9. A. It is the most modern production line.B. It assembles super-intelligent robots.C. It has stopped working completely.D. It is going to be upgraded soon.10. A. T o seek her permission.B. To place an order for robots.C. To request her to return at once.D. T o ask for T om's phone number.11. A. She is on duty.B. She is having her day off.C. She is on sick leave.D. She is abroad on business.Questions 12 to 15 are based on the conversation you have just heard.12. A. He saved a baby boy's life.B. He wanted to be a superhero.C. He prevented a train crash.D. He was a witness to an accident.13. A. He has a 9-month-old boy.B. He is currently unemployed.C. He enjoys the interview.D. He commutes by subway.14. A. A rock on the tracks.B. A misplaced pushchair.C. A strong wind.D. A speeding car.15. A. She stood motionless in shock.B. She cried bitterly.C. She called the police at once.D. She shouted for help.Section CDirections: In this section, you will hear three passages. At the end of each passage, you will hearthree or four questions. Both the passage and the questions will be spoken only once.After you hear a question, you must choose the best answer from the four choices markedA, B, C and D. Then mark the corresponding letter on Answer Sheet I with asingle line through the centre.Questions 16 to 18 are based on the passage you have just heard.16. A. She inherited her family ice-cream business in Billings.B. She loved the ice-cream business more than teaching primary school.C. She started an ice-cream business to finance her daughter's education.D. She wanted to have an ice-cream truck when she was a little girl.17. A. T o preserve a tradition.B. To amuse her daughter.C. To help local education.D. T o make some extra money.18. A. T o raise money for business expansion.B. To make her truck attractive to children.C. To allow poor kids to have ice-cream too.D. T o teach kids the value of mutual support.Questions 19 to 21 are based on the passage you have just heard.19. A. The reasons for imposing taxes.B. The various services money can buy.C. The various burdens on ordinary citizens.D. The function of money in the modem world.20. A. Educating and training citizens.B. Improving public transportation.C. Protecting people's life and property.D. Building hospitals and public libraries.21. A. By asking for donations.B. By selling public lands.C. By selling government bonds.D. By exploiting natural resources.Questions 22 to 25 are based on the passage you have just heard.22. A. It is located at the center of the European continent.B. It relies on tourism as its chief source of revenues.C. It contains less than a square mile of land.D. It is surrounded by France on three sides.23. A. Its beauty is frequently mentioned in American media.B. Its ruler Prince Rainier married an American actress.C. It is where many American movies are shot.D. It is a favorite place Americans like to visit.24. A. T obacco.B. Potatoes.C. Machinery.D. Clothing.25. A. European history.B. European geography.C. Small countries in Europe.D. T ourist attractions in Europe.Part ⅢReading Comprehension(40 minutes)Section ADirections: In this section, there is a passage with ten blanks. You are required to select one wordfor each blank from a list of choices given in a word bank following the passage. Read thepassage through carefully before making your choices.Each choice in the bank isidentified by a letter. Please mark the corresponding letter for each item on AnswerSheet 2 with a single line through the centre. You may not use any of the words in thebank more than once.Questions 26 to 35 are based on the following passage.The ocean is heating up. That's the conclusion of a new study that finds that Earth's oceans now26heat at twice the rate they did 18 years ago. Around half of ocean heat intake since 1865 hastaken place since 1997, researchers report online in Nature Climate Change.Warming waters are known to27 to coral bleaching (珊瑚白化) and they take up more spacethan cooler waters, raising sea28While the top of the ocean is well studied, its depths are moredifficult to 29The researchers gathered 150 years of ocean temperature data in order to get abetter30 of heat absorption from surface to seabed. They gathered together temperature readingscollected by everything from a 19th century31 of British naval ships to modem automated oceanprobes. The extensive data sources,32 with computer simulations ( 计算机模拟), created atimeline of ocean temperature changes, including cooling from volcanic outbreaks and warming fromfossil fuel33About 35 percent of the heat taken in by the oceans during the industrial era now resides at a34 of more than 700 meters, the researchers found. They say they're35whether the deep-seawarming canceled out warming at the sea's surface.A. absorbB. CombinedC. ContributeD. depthE. emissionsF. excursionG. exploreH. floorI. heightsJ. indifferentK. levelsL. mixedM. pictureN. unsureO. voyageSection BDirections: In this section, you are going to read a passage with ten statements attached to it. Eachstatement contains information given in one of the paragraphs. Identify the paragraphfrom 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 thecorresponding letter on Answer Sheet 2.The Secret to Raising Smart KidsA) I first began to investigate the basis of human motivation--and how people persevereaftersetbacks--as a psychology graduate student at Yale University in the 1960s. Animal experiments bypsychologists at the University of Pennsylvania had shown that after repeated failures, most animalsconclude that a situation is hopeless and beyond their control. After such an experience an animaloften remains passive even when it can effect change--a state they called learned helplessness.B) People can learn to be helpless, too. Why do some students give up when they encounter difficulty,whereas others who are no more skilled continue to strive and learn? One answer, I soondiscovered, lay in people's beliefs about why they had failed.C) In particular, attributing poor performance to a lack of ability depresses motivation more than doesthe belief that lack of effort is to blame. When I told a group of school children who displayedhelpless behavior that a lack of effort led to their mistakes in math, they learned to keep tryingwhen the problems got tough. Another group of helpless children who were simply rewarded fortheir success on easier problems did not improve their ability to solve hard math problems. Theseexperiments indicated that a focus on effort can help resolve helplessness and generate success.D) Later, I developed a broader theory of what separates the two general classes of learners--helplessversus mastery-oriented. I realized these different types of students not only explain their failuresdifferently, but they also hold different "theories" of intelligence.The helpless ones believeintelligence is a fixed characteristic: you have only a certain amount, and that's that. I call this a"fixed mind-set (思维模式). " Mistakes crack their self-confidence because they attribute errors toa lack of ability, which they feel powerless to change. They avoid challenges because challengesmake mistakes more likely. The mastery-oriented children, on theother hand, think intelligence isnot fixed and can be developed through education and hard work. Such children believe challengesare energizing rather than intimidating (令人生畏); they offer opportunities to learn. Studentswith such a growth mind-set were destined (注定) for greater academic success and were quitelikely to outperform their counterparts.E) We validated these expectations in a study in which two other psychologists and I monitored 373students for two years during the transition to junior high school, when the work gets more difficultand the grading more strict, to determine how their mind-sets might affect their math grades. At thebeginning of seventh grade, we assessed the students' mind-sets by asking them to agree or disagreewith statements such as "Your intelligence is something very basic about you that you can't reallychange. " We then assessed their beliefs about other aspects of learning and looked to see whathappened to their grades.F) As predicted, the students with a growth mind-set felt that learning was a more important goal thangetting good grades. In addition, they held hard work in high regard. They understood that evengeniuses have to work hard. Confronted by a setback such as a disappointing test grade, studentswith a growth mind-set said they would study harder or try a different strategy. The students whoheld a fixed mind-set, however, were concerned about looking smart with less regard for learning.They had negative views of effort, believing that having to work hard was a sign of low ability.They thought that a person with talent or intelligence did not need to work hard to do well.Attributing a bad grade to their own lack of ability, those with a fixed mind-set said that they wouldstudy less in the future, try never to take that subject again and consider cheating on future tests.G) Such different outlooks had a dramatic impact on performance. At the start of junior high, the mathachievement test scores of the students with a growth mind-set were comparable to those ofstudents who displayed a fixed mind-set. But as the work became more difficult, the studentswitha growth mind-set showed greater persistence. As a result, their math grades overtook those of theother students by the end of the first semester--and the gap between the two groups continued towiden during the two years we followed them.H) A fixed mind-set can also hinder communication and progress in the workplace and discourage orignore constructive criticism and advice. Research shows that managers who have a fixed mind-setare less likely to seek or welcome feedback from their employees than are managers with a growthmind-set.I) How do we transmit a growth mind-set to our children? One way is by telling stories aboutachievements that result from hard work. For instance, talking about mathematical geniuseswhowere more or less born that way puts students in a fixedmind-set, but descriptions of greatmathematicians who fell in love with math and developed amazing skills produce a growth mind-set.J) In addition, parents and teachers can help children by providing explicit instruction regarding themind as a learning machine. I designed an eight-session workshop for 91 students whose mathgrades were declining in their first year of junior high.Forty-eight of the students receivedinstruction in study skills only, whereas the others attended a combination of study skills sessionsand classes in which they learned about the growth mind-set and how to apply it to schoolwork. Inthe growth mind-set classes, students read and discussed an article entitled "You Can Grow YourBrain. " They were taught that the brain is like a muscle that gets stronger with use and thatlearning prompts the brain to grow new connections. From such instruction, many students beganto see themselves as agents of their own brain development. Despite being unaware that there weretwo types of instruction, teachers reported significant motivational changes in 27% of the childrenin the growth mind-set workshop as compared with only 9% of students in the control group.K) Research is converging (汇聚) on the conclusion that great accomplishment and even genius istypically the result of years of passion and dedication and not something that flows naturally from agift.36. The author's experiment shows that students with a fixed mind-set believe having to work hard is an indication of low ability.37. Focusing on effort is effective in helping children overcome frustration and achieve success.38. We can cultivate a growth mind-set in children by telling success stories that emphasize hard work and love of learning.39. Students' belief about the cause of their failure explains their attitude toward setbacks.40. In the author's experiment, students with a growth mind-set showed greater perseverance in solving difficult math problems.41. The author conducted an experiment to find out about the influence of students' mind-sets on math learning.42. After failing again and again, most animals give up hope.43. Informing students about the brain as a learning machine is a good strategy to enhance their motivation for learning.44. People with a fixed mind-set believe that one's intelligence is unchangeable.45. In the workplace, feedback may not be so welcome to managers with a fixed mind-set.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions orunfinished statements. For each of them there are four choices marked A., B., C. AndD . You should decide on the best choice and mark the corresponding letter on AnswerSheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage."Sugar, alcohol and tobacco," economist Adam Smith once wrote," are commodities which arenowhere necessaries of life, which have become objects of almost universal consumption, and whichare, therefore, extremely popular subjects of taxation. " Two and a haft centuries on, most countries impose some sort of tax on alcohol and tobacco. Withsurging obesity levels putting increasing strain on public health systems, governments around the worldhave begun to toy with the idea of taxing sugar as well.Whether such taxes work is a matter of debate. A preliminary review of Mexico's taxation found afall in purchases of taxed drinks as well as a rise in sales of untaxed and healthier drinks. By contrast,a Danish tax on foods high in fats was abandoned a year after its introduction, amid claims thatconsumers were avoiding it by crossing the border to Germany to satisfy their desire for cheaper, fattierfare.The food industry has, in general, been firmly opposed to such direct government action.Nonetheless, the renewed focus on waistlines means that industry groups are under pressure todemonstrate their products are healthy as well as tasty.Over the past three decades, the industry has made some efforts to improve the quality of itsofferings. For example, some drink manufacturers have cut the amount of sugar in their beverages.Many of the reductions over the past 30 years have been achieved either by reducing the amount ofsugar, salt or fat in a product, or by finding an alternative ingredient. More recently, however, somecompanies have been investing money in a more ambitious undertaking: learning how to adjust thefundamental make-up of the food they sell. For example, having salt on the outside, but none on theinside, reduces the salt content without changing the taste.While reformulating recipes ( 配方) is one way to improve public health, it should be part of amulti-sided approach. The key is to remember that there is not just one solution. To deal with obesity,a mixture of approaches--including reformulation, taxation and adjusting portion sizes--will beneeded. There is no silver bullet.46. What did Adam Smith say about sugar, alcohol and .tobacco?A. They were profitable to manufacture.B. They were in ever-increasing demand.C. They were subject to taxation almost everywhere.D. They were no longer considered necessities of life.47. Why have many countries started to consider taxing sugar?A. They are under growing pressure to balance their national budgets.B. They find it ever harder to cope with sugar-induced health problems.C. The practice of taxing alcohol and tobacco has proved both popular and profitable.D. The sugar industry is overtaking alcohol and tobacco business in generating profits.48. What do we learn about Danish taxation on fat-rich foods?A. It did not work out as well as was expected.B. It gave rise to a lot of problems on the border.C. It could not succeed without German cooperation.D. It met with firm opposition from the food industry.49. What is the more recent effort by food companies to make foods and drinks both healthy and tasty?A. Replacing sugar or salt with alternative ingredients.B. Setting a limit on the amount of sugar or salt in their products.C. Investing in research to find ways to adapt to consumers' needs.D. Adjusting the physical composition of their products.50. What does the author mean by saying, at the end of the passage, "There is no silver bullet" ( Line 4, Para.7)?A. There is no single easy quick solution to the problem.B. There is no hope of success without public cooperation.C. There is no hurry in finding ways to solve the obesity problem.D. There is no effective way to reduce people's sugar consumption.Passage TwoQuestions 51 to 55 are based on the following passage.You may have heard some of the fashion industry horror stories: models eating tissues or cottonballs to hold off hunger, and models collapsing from hunger-induced heart attacks just seconds afterthey step off the runway. Excessively skinny models have been a point of controversy for decades, and two researchers saya model's body mass should be a workplace health and safety issue. In an editorial released Monday inthe American Journal of Public Health, Katherine Record and Bryn Austin made their case forgovernment regulation of the fashion industry.The average international runway model has a body mass index (BMI) under 16--low enough toindicate starvation by the World Health Organization's standard. And Record and Austin are worried notjust about the models themselves, but about thevast number of girls and women their images influence."Especially girls and teens," says Record. "Seventy percent of girls aged 10 to 18 report that theydefine perfect body image based on what they see in magazines. " That's especially worrying, she says,given that anorexia (厌食症) results in more deaths than does any other mental illness, according tothe National Institute of Mental Health.It's commonly known that certain diseases are linked with occupations like lung disease in coalminers. Professional fashion models are particularly vulnerable to eating disorders resulting fromoccupational demands to maintain extreme thinness. Record's suggestion is to prohibit agents from hiring models with a BMI below 18.In April, France passed a law setting lower limits for a model's weight. Agents and fashion houseswho hire models with a BMI under 18 could pay $ 82,000 in fines and spend up to 6 months in jail.Regulating the fashion industry in the United States won't be easy, Record says. But with the new rulesin France, U.S. support could make a difference. "A designer can't survive without participating inParis Fashion Week", she says, adding," Our argument is that the same would be true of New YorkFashion Week. "51. What do Record and Austin say about fashion models' body mass?A. It has caused needless controversy.B. It is but a matter of personal taste.C. It is the focus of the modeling business.D. It affects models' health and safety.52. What are Record and Austin advocating in the Monday editorial?A. A change in the public's view of female beauty.B. Government legislation about models' weight.C. Elimination of forced weight loss by models.D. Prohibition of models eating non-food stuff.53. Why are Record and Austin especially worried about the low body mass index of models?A. It contributes to many mental illnesses.B. It defines the future of the fashion industry.C. It has great influence on numerous girls and women.D. It keeps many otherwise qualified women off the runway.54. What do we learn about France's fashion industry?A. It has difficulty hiring models.B. It has now a new law to follow.C. It allows girls under 18 on the runway.D. It has overtaken that of the United States.55. What does Record expect of New York Fashion Week?A. It will create a completely new set of rules.B. It will do better than Paris Fashion Week.C. It will differ from Paris Fashion Week.D. It will have models with a higher BMI.Part ⅣTranslation( 30 minutes )Directions:For this part, you are allowed 30 minutes to translate a passage from Chinese intoEnglish. You should write your answer on Answer Sheet 2.在中国文化中，黄颜色是一种很重要的颜色，因为它具有独特的象征意义。
[推荐学习]2016届高三数学12月阶段检测试题 理
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山东省滕州市第一中学2016届高三12月份阶段检测数学试题（理科）一、选择题（共 10 小题，每小题 5 分，共 50 分.在每小题给出的四个选项中，只有一个最符合题目要求.）1、已知全集U R =，则正确表示集合{}1,0,1M =-和{}20N x x x =+=关系的韦恩()Venn 图是( )2、设,m n 为空间两条不同的直线，,αβ为空间两个不同的平面，给出下列命题： ①若//,//m m αβ，则//αβ； ②若//,//m m n α，则//n α； ③若,//m m αβ⊥，则αβ⊥； ④若,//m ααβ⊥，则m β⊥． 其中的正确命题序号是（ ）A ．③④B ．②④C ．①②D ．①③ 3、“1x >”是“12log (2)0x +<”的（ ）A ．充分而不必要条件B ．必要而不充分条件C ．充要条件D ．既不充分也不必要条件 4、已知函数()sin 23f x x π⎛⎫=+ ⎪⎝⎭，为了得到()cos 22g x x π⎛⎫=-⎪⎝⎭的图像，只需将()f x 的图像( )A ．向左平移3π个长度单位 B ．向右平移3π个长度单位 C ．向左平移6π个长度单位 D ．向右平移6π个长度单位5、已知向量()()2,1,1,a b k ==-r r ，若()//2a a b -r r r，则k 等于( )A ． 12-B ．12C ．12-D ．126、已知点(),M a b 在圆22:1O x y +=内, 则直线1ax by +=与圆O 的位置关系是（ ） A ．相切 B ．相交 C ．相离 D ．不确定7、函数()x xx f ln 1+=的图象大致为8、已知数列{}n a 是递增的等比数列，14239,8a a a a +==，则数列{}n a 的前10项和等于（ ）A ． 1024B ． 1023C ． 512D ．5119、已知双曲线()222210,0x y a b a b-=>> 的一条渐近线过点( ，且双曲线的一个焦点在抛物线2y = 的准线上，则双曲线的方程为（ ）A ．2212128x y -= B ．2212821x y -= C ．22134x y -= D ．22143x y -= 10、已知,x y 满足约束条件10,230,x y x y --≤⎧⎨--≥⎩当目标函数(0,0)z ax by a b =+>>在该约束条件下取到最小值22a b +的最小值为（ ）A ． 2B ．4 D ．5二、填空题（本大题共5小题，每小题5分，共25分）.11、在用数学归纳法证明22111(1,)1n n a a a a a n N a++*-++++=≠∈-L 时，在验证1n =时，等式左边为 ．12、曲线2y x =与直线y x =所围成的封闭图形的面积为 ．15、若函数()f x 对其定义域内的任意12,x x ，当12()()f x f x =时总有12x x =，则称()f x 为紧密函数，例如函数()ln (0)f x x x =>是紧密函数，下列命题：①紧密函数必是单调函数；②函数22()(0)x x af x x x++=>在0a <时是紧密函数； ③函数3log ,2()2,2x x f x x x ≥⎧=⎨-<⎩是紧密函数；④若函数()f x 为定义域内的紧密函数，12x x ≠，则12()()f x f x ≠；⑤若函数()f x 是紧密函数且在定义域内存在导数，则其导函数'()f x 在定义域内的值一定不为零．其中的真命题是 ．三、解答题（本大题共6小题，共75分，解答应写出文字说明，证明过程或演算步骤）16、（本小题满分12分）已知向量,1)4x m =u r ，2(cos ,cos )44x x n =r ，函数()f x m n =⋅u r r ．（1）若()1f x =，求2cos()3x π-的值； （2）在锐角ABC ∆中，角,,A B C 的对边分别是,,a b c ，且满足1cos 2a C cb +=，求(2)f B 的取值范围． 17、（本小题满分12分）在等差数列{}n a 中，首项11-=a ，数列{}n b 满足12311()264n an b b b b ==,且. （Ⅰ）求数列{}n a 的通项公式； （Ⅱ）设165(1)nn n n n c a a +-=-，求数列{}n c 的前n 项的和n T ． 18、（本小题满分12分）如图,正方形ADEF 与梯形ABCD 所在的平面互相垂直, AD CD ⊥,//,AB CD 12,2AB AD CD ===点M 是线段EC 的中点. (1)求证://BM 平面ADEF ； (2)求证:平面BDE ⊥平面BEC ； (3)求平面BDM 与平面ABF 所成的角(锐角)的余弦值.19、（本小题满分12分）某厂家拟举行大型的促销活动，经测算某产品当促销费用为x 万元时，销售量t 万件满足()()95,.21t x a a x =-≤≤>+其中11假定生产量与销售量相等，已知生产该MF EDC产品t 万件还需()102t +万元（不含促销费用），生产的销售价格定为204t ⎛⎫+ ⎪⎝⎭万元/万件. （1）将该产品的利润y 万元表示为促销费用x 万元的函数； （2）促销费用投入多少万元时，厂家的利润最大．20、（本小题满分13分）已知椭圆)0(1:2222>>=+b a b y a x C 的一个顶点为)0,2(A ，离心率为22.过点)0,1(G 的直线l 与椭圆C 相交于不同的两点,M N . （1）求椭圆C 的方程； （2）当AMN ∆的面积为524时，求直线l 的方程. 21、（本小题满分14分）已知函数x ax x x f -++=2)1(n 1)( (a R ∈)．（1）当14a =时，求函数()y f x =的单调区间和极值； （2）若对任意实数(1,2)b ∈，当(1,]x b ∈-时，函数()f x 的最大值为()f b ，求实数a 的取值范围．高三一轮复习12月阶段检测数学试题答案（理科）一、选择题（共 10 小题，每小题 5 分，共 50 分.在每小题给出的四个选项中，只有一个最符合题目要求.）1、B2、A3、A4、D5、C6、C7、B8、B9、D 10、C 二、填空题（本大题共5小题，每小题5分，共25分）. 11、21a a ++ 12、16 13、2π+ 14、5 15、②④ 三、解答题（本大题共6小题，共75分，解答应写出文字说明，证明过程或演算步骤）16、解：2()cos cos 444x x x f x =+1sin()262x π=+= …………2分 (1)若,1)(=x f 可得21)62sin(=+πx ，则221cos 2cos ()1332x x ππ⎛⎫-=-- ⎪⎝⎭，2112sin 1262x π⎛⎫=+-=- ⎪⎝⎭ ………………6分（2）由b c C a =+21cos 可得：b c ab c b a a=+-+212222，即bc a c b =-+222 所以212cos 222=-+=bc a c b A ，在锐角ABC ∆中3A π∴=23B C π∴+=………8分 又,B C 均为锐角(,)62B ππ∴∈sin()6B π∴+∈ ………………10分∴1(2)sin()62f B B π=++的取值范围是：3]2………………12分 17、解：（Ⅰ）设等差数列}{n a 的公差为d ， n an b a )21(,11=-= ，.)21(,)21(,)21(2131211d d b b b +-+--===∴由641321=b b b 得641)21(33=+-d ，解得3=d ． .433)1(1-=⋅-+-=∴n n a n ………………6分（Ⅱ）16511(1)(1)()3431n n n n n n c a a n n +-=-=-+--Q()11111111()11225583431n n T n n ⎛⎫⎛⎫⎛⎫=-+++-+++-+ ⎪ ⎪ ⎪---⎝⎭⎝⎭⎝⎭L 11(1)31n n =+--（分n 为奇偶数讨论也可） ………………12分18、证明: (1)取DE 的中点N ,连结MN ,AN .在EDC ∆中,M ,N 分别为EC ,ED 的中点,则//MN CD 且12MN CD =.由已知//AB CD ,12AB CD =,得//MN AB ,且MN AB =,四边形ABMN 为平行四边形.//BM AN .因为AN ⊂平面ADEF ,且BM ⊄平面ADEF //BM ∴平面ADEF .………4分 (2)在正方形ADEF 中,ED AD ⊥.又平面ADEF ⊥平面ABCD , 平面ADEF I 平面ABCD AD =,ED ∴⊥平面ABCD . ED BC ∴⊥.在直角梯形ABCD 中,2AB AD ==,4CD =,得BC =在BCD ∆中,BD BC ==,4CD =,可得BC BD ⊥.又ED BD D =I ,故BC ⊥平面BDE .又BC ⊂平面BEC ,所以平面BDE ⊥平面BEC .………………8分(3)如图,建立空间直角坐标系,则(2,0,0),(2,2,0),A B C 因为点M 是线段EC 的中点，则()0,2,1M ,()0,2,1DM =uuu u r ,又()2,2,0DB =uu u r.设()111,,n x y z =r是平面BDM 的法向量，则11220DB n x y ⋅=+=uu u r r ,1120DM n y z ⋅=+=uuu u r r.取11x =,得111,2y z =-=,即得平面BDM 的一个法向量为 ()1,1,2n =-r.由题可知,()2,0,0DA =uu u r是平面ABF 的一个法向量.设平面BDM 与平面ABF 所成锐二面角为θ，因此,cos DA n DA nθ⋅===⋅u u u r r u u u r r .………………12分 19、解：（1）由题意知，利润204(102)y t t x t ⎛⎫=+-+- ⎪⎝⎭由销售量t 万件满足()9521t x =-+代入得：920(),(0)1y x x a x =-+≤≤+……5分 （2）921(1)216151y x x =-++≤-=+，当且仅当911x x =++，即2x =时，取等号 当2a ≥时，促销费用投入2万元，厂家的利润最大； ………………8分当12a <<时，2(2)(4)0,(1)x x y x --+'=>+ 故120()1y x x =-++在0x a ≤≤上单调递增； 所以在0x a ≤≤时，函数有最大值，促销费用投入a 万元，厂家的利润最大； 综上所述，当2a ≥时，促销费用投入2万元，厂家的利润最大；当12a <<时，促销费用投入a 万元，厂家的利润最大. ………………12分20、解：（1）2,2c a c a ==∴=2222b a c ∴=-=所以所求的椭圆方程是22142x y += ………………3分 （2）①直线l 的斜率不存在时，直线方程为1x =，弦长MN =2AMN S ∆=，不满足条件； ………………4分 ②直线l 的斜率存在时，设直线l 的方程为(1)(0)y k x k =-≠，代入C 的方程得： 2222(21)4240k x k x k +-+-=4222164(21)(24)8(32)0k k k k ∆=-+-=+>设1122(,),(,)M x y N x y ，则22121222424,2121k k x x x x k k -+==++ ………………6分 11221212(1),(1),()y k x y k x y y k x x =-=-∴-=-MN ∴==== ………………9分点A 到直线l的距离为d =……………… 10分所以12MNAS MN d ∆===， 化简得42221114160,(2)(118)0k k k k --=-+=22,k k ∴=∴=……12分 所以所求的直线l的方程为1)y x =- ………………13分或解1212111()222MNA S y y k x x ∆=-=-=（下同） 21、解：（Ⅰ）当14a =时，21()ln(1)4f x x x x =++- ,则11(1)()1(1)122(1)x x f x x x x x -'=+-=>-++， 令()0f x '>，得10x -<<或1x >； 令()0f x '<，得01x <<，∴函数()f x 的单调递增区间为(1,0)-和(1,)+∞，单调递减区间为(0,1)；极大值0，极小值432ln - ………………5分（Ⅱ）由题意[2(12)]()(1)(1)x ax a f x x x --'=>-+， （1）当0a ≤时，函数()f x 在(1,0)-上单调递增，在(0,)+∞上单调递减，此时，不存在实数(1,2)b ∈，使得当(1,]x b ∈-时，函数()f x 的最大值为()f b ……7分（2）当0a >时，令()0f x '=，有10x =，2112x a=-， ①当12a =时，函数()f x 在(1,)-+∞上单调递增，显然符合题意. ………………8分②当1102a ->即102a <<时，函数()f x 在(1,0)-和1(1,)2a -+∞上单调递增， 在1(0,1)2a-上单调递减，()f x 在0x =处取得极大值，且(0)0f =， 要使对任意实数(1,2)b ∈，当(1,]x b ∈-时，函数()f x 的最大值为()f b ，只需(1)0f ≥，解得1ln 2a ≥-，又102a <<， 所以此时实数a 的取值范围是11ln 22a -≤<………………11分 ③当1102a -<即12a >时，函数()f x 在1(1,1)2a --和(0,)+∞上单调递增， 在1(1,0)2a-上单调递减，要存在实数(1,2)b ∈，使得当(1,]x b ∈-时， 函数()f x 的最大值为()f b ，需1(1)(1)2f f a-≤， 代入化简得1ln 2ln 2104a a ++-≥， 令11()ln 2ln 21()42g a a a a =++->，因为11()(1)04g a a a '=->恒成立， 故恒有11()()ln 2022g a g >=->，所以12a >时，1ln 2ln 2104a a++-≥式恒成立; ∴实数a 的取值范围是[1ln 2,)-+∞. ………………14分．。
17学年上学期高一期中考试试题化学(附答案)
秘密★启用前2016年重庆一中高2019级高一上期半期考试化学试题卷2016.12化学试题共7页。
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可能用到的相对原子质量：H 1 C 12 N 14 O 16 Na 23 Mg 24 Al 27 S 32 Fe 56 Ba 137Ⅰ卷（选择题，共69分）选择题(本题包括23个小题，每小题只有一个选项符合题意，每小题3分，共69分)1.下列仪器可用于加热且不必垫石棉网的是①试管②烧杯③坩埚④蒸发皿⑤锥形瓶⑥蒸馏烧瓶A. ②④⑤B. ①③④C.①②③D. ②⑤⑥2.如果家里炒菜的食用油混了大量水，采用的简单分离方法为A.过滤B.萃取C.分液D.蒸馏3.下列各项中，符合实验安全操作要求的是A.金属钠着火，立即用水浇灭B.将使用剩余的金属钠放回原瓶C.给试管中的液体加热过程中加入碎瓷片D.皮肤上不慎沾上NaOH溶液，立即用盐酸冲洗4.歌乐山森林公园是重庆主城的肺叶之一，素有“天然氧吧”之称，其原因是森林空气中富含被称为“空气维生素”的负氧离子，O2－就是其中一种，其摩尔质量为A.33B.32C.33 g·molˉ1D.32 g·molˉ15.分类法在化学学科发展中起到了非常重要的作用，下列分类标准合理的是A.根据是否含氧元素，将物质分为氧化剂和还原剂B.根据是否具有丁达尔效应，将分散系分为溶液、浊液和胶体C.根据水溶液是否能够导电，将物质分为电解质和非电解质D.根据反应中是否有电子转移，将化学反应分为氧化还原反应和非氧化还原反应6.下列分散系中，分散质微粒半径最小的是A.霾B.KCl溶液C.蛋白质胶体D.新制Cu(OH)2悬浊液7.下列叙述正确的是A.将植物油倒入水中用力搅拌形成油水混合物属于胶体B.向氢氧化钠溶液中逐滴加入FeCl3饱和溶液制备氢氧化铁胶体C.一束平行光线射入稀豆浆里，可以看到一条光亮的通路D.可用过滤方法除去氢氧化铁胶体中的NaCl杂质8.下列有关实验操作正确的是A.图①：配制0.2 mol·L-1的NaOH 溶液B.图②：除去NaCl溶液中的KNO3杂质C.图③：用CCl4萃取碘水中的碘后的分液操作D.图④：蒸馏工业酒精获取无水酒精9.下列有关物质的类别正确的是A.盐：碳酸氢钠氯化铵纯碱B.电解质：H2SO4 Ba(OH)2CO2C.氧化物：H2O CO HNO3D.混合物：空气玻璃水银10.若N A表示阿伏加德罗常数的值，下列说法正确的是A.16g O2和O3的混合气体中含N A个氧原子B.0.5 mol·L-1硫酸钠溶液中含有N A个Na+C.在0 ℃、101 kPa时，22.4 L CCl4中含有N A个碳原子D.在H2O2 + Cl2 =2HCl + O2反应中，每生成32g氧气，则转移4N A个电子11.己知在标准状况下4.48L 某气体质量为8.8g，则该气体可能为A.CH4B.NOC.NH3D.CO212.铁、铝两种金属分别和等体积、等浓度的稀硫酸反应，消耗两种金属的物质的量相等，则下列叙述一定正确的是A.生成氢气的体积相等B.消耗的硫酸的物质的量相等C.两反应转移电子的数目之比为2:3D.加入的两种金属质量相等13.同温同压下，相同体积的SO2和O3气体，下列叙述中错误的是A.质量比4∶3B.电子数比1∶1C.密度比4∶3D.氧原子数比2∶314.下列有关钠的叙述中，错误的是A.少量金属钠可保存在煤油中B.金属钠的密度比水小，比煤油大C.金属钠可以置换出硫酸铜溶液中的铜D.钠元素在自然界中只能以化合态存在15.下列叙述正确的是A.溶于水后能电离出H+的化合物都是酸B.NaCl溶液在电流作用下电离成Na+与Cl-C.硫酸溶液的导电性一定比醋酸溶液导电性强D.氯化氢溶于水能导电，但液态氯化氢不能导电16.下列反应的离子方程式错误的是A.氢氧化钡溶液中加入硫酸镁溶液Mg2+ + 2OH- = Mg(OH)2↓B.稀硫酸溶液中加入氧化铜CuO＋2H＋= Cu2+＋H2OC.碳酸钙与稀盐酸制二氧化碳CaCO3＋2H＋=Ca2+＋CO2↑＋H2OD.碳酸氢钙溶液中加入少量氢氧化钾溶液Ca2+＋HCO3-＋OH-=CaCO3↓＋H2O17.某无色透明的强酸性溶液中能大量共存的离子组是A.Mg2+、K+、SO42-、OH-B.Ca2+、K+、CO32-、C1-C.K+、Na+ 、Cl-、NO3-D.Cu2+、K+、NO3-、Cl-18.已知某溶液中Na+、Cl－、K+、SO42－物质的量之比为1:1:2:1，则其溶质可能是A.KCl、Na2SO4B.KCl、Na2SO4、NaClC.NaCl、Na2SO4、K2SO4D.KCl、K2SO4、Na2SO419.下列反应不属于四种基本反应类型，但属于氧化还原反应的是A.CaO+H2O=Ca(OH)2B.Fe＋CuSO4=FeSO4＋CuC.6FeBr2＋3Cl2=2FeCl3＋4FeBr3D.AgNO3＋KCl=AgCl↓＋KNO320.下图是某燃煤发电厂处理废气的装置示意图。
2016届高三12月联考理综试卷
2016届高三第三次联考理综试题注意事项：1、本试卷分第I卷（选择题）和第II卷（非选择题）两部分。
答卷前、考生务必将自己的姓名、准考证号填写在答题卡上。
2、回答第I卷时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动，用橡皮擦干净后，再选涂其他答案标号。
写在本试卷上无效。
3、回答第II卷时，将答案写在答题卡上。
写在本试卷上无效。
4、考试结束后，将本试卷和答题卡一并交回。
可能用到的相对原子质量：Be—9 B—11 N—14 O—16 V—51 Mn—55第I卷一、选择题：本题共13小题，每小题6分。
在每小题给出的四个选项中，只有一项是符合题目要求的。
1.下列有关细胞中的元素和化合物的叙述，正确的是A．构成细胞的最基本元素是碳，这与其含量最高有关B．脂肪分子中氢的含量比糖类高，是细胞主要的能源物质C．细胞中的RNA分子一般是单链，且不含氢键D．细胞中的一个环状n肽分子被彻底水解需要破坏n个肽键2.下列关于真核细胞生物膜的叙述，正确的是A．构成生物膜的脂质主要有磷脂、胆固醇和脂肪B．抗体合成越旺盛的细胞，其高尔基体膜和细胞膜的成分更新速率越快C．细胞许多化学反应都在生物膜上进行，ATP分子都是在生物膜上合成的D．细胞在分化的过程中，其细胞膜的通透性稳定不变3.下图为甘蔗叶肉细胞内的一系列反应过程，下列说法错误的是A．过程①中叶绿体中的叶绿素主要吸收蓝紫光和红光B．过程②发生在叶绿体基质中，过程③发生在细胞质基质和线粒体中C．过程①产生[H]，过程②消耗[H]，过程③既产生也消耗[H]D．若过程②的速率大于过程③的速率，则甘蔗的干重会增加4.如图是某高等动物（基因型Bb）体内四个正在分裂的细胞，下列说法正确的是A．如果甲图7号上有B基因，则一般情况下2和6上有b基因B．卵巢会出现这四种细胞，乙图表示次级卵母细胞或第一极体C．丙图表示减数第一次分裂后期，细胞中有8条染色体D．含有同源染色体细胞有甲、乙和丙5.图中DNA分子含有5000个碱基对，其中腺嘌呤占全部碱基的20%。
2016年12月大学英语四级真题及完整答案(共两卷)
2016年12月大学英语四级真题（第一套）Part I Writing (30minutes)Directions:For this part, you are allowed 30 minutes to write an essay. Suppose you have two options upon graduation: one is to take a job in a company and the other to go to a graduate school. 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 180 words.Part II 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 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 1and 2 are based on the news report you have just the heard.1. A) It was going to be renovated. C) It was dangerous to live in.B) He could no longer pay the rent. D) He had sold it to the royal family.2. A) A storm. C) A forest fire.B) A strike. D) A Terrorist attack.Questions 3and 4 are based on the news report you have just heard.3. A) They lost contact with the emergency department.B) They were injured by suddenly falling rocks.C) They sent calls for help via a portable radio.D) They were trapped in an underground elevator.4. A) They provided the miner with food and water.B) They sent supplies to keep the miners warm.C) They released the details of the accident.D) They tried hard to repair the accident.Question5 to7 are based on the news report you have just heard.5. A) Raise postage rates. C) Close some of its post offices.B) Improve its services. D) Redesign delivery routes.6. A) Closing offices on holidays. C) Computerizing mail sorting processes.B) Shortening business hours. D) Stopping mail delivery on Saturdays.7.A）A lot of controversy will ariseB) Taxpayers will be very pleasedC) Many people will begin to complainD) Many post office staff will lose their jobsSection BDirections:In this section,you will hear two long conversations.At the end of eachconversation,you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from four choice marked A),B),C) and D).Then mark the corresponding letter an Answer sheet1 with a single line though the centre.Question8 to 11 are based on the conversation you have just heard.8.A)He will lose part of his pay. C)He will be given a warning.B)He will go through retraining. D)He is go good terms with his workmates.9.A)He is an experienced press operator. C)He is always on time.B)He is trustworthy guy. D）He is go good terms with his workmates.10.A)She is a trade union representative. C)She is better at handing such matters.B)She is a senior manager of the shop. D)She is in charge of public relation.11.A)He is always trying to stir up trouble.B)He is skilled and experienced.C)He is very close to the manager.D)He is always complaining about low wages.Question12 to 15 are based on the conversation you have just heard.12.A)Open. C)Selfish.B)Reserved. D)Friendly.13.A)They read a book. C)They stay quiet.B)They talk about the weather D)They chat with fellow passengers.14.A)She was unwilling to make friends with workmates.B)She was never invited to a colleague’s home.C)She was eager to visit an English castle.D)She was always treated as a foreigner.15.A) House are much more quiet. C) They want a garden of their own.B) They 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 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 don’t have to go through job interviews.C) They are likely to get much higher pay.D) They don’t have much choice of jobs.17.A) Visit the school careers services. C) Look at school bulletin boards.B) Ask their professors for help. D) Go through campus newspapers.18.A) Providing students with information about the library.B) Helping students arrange appointments with librarians.C) Supervising study spaces to ensure a quiet atmosphere.D) Helping students find the books and journals they need.Questions 19 to 21 are based on the passage you have just heard.19.A) It tastes better. C) It is easier to grow.B) It may be sold at a higher price. D) It can better survive extreme weathers.20.A) It can grow in drier soil. C) It will replace green tea one day.B) It is immune to various diseases. D) It is healthier than green tea.21.A) It does not have a stable market.B) It has made tea farmers’ life easier.C) It does not bring the promised health benefits.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 care more about environment.B) They decorate their homes themselves.C) They prefer unique objects of high quality.D) They need decorations to show their status.23. A) They made great contributions to society.B) They could only try to create at night.C) They were proud of their creations.D) They focused on the quality of their products.24. A) Identify fake crafts. C) Design handicrafts themselves.B) Make wise choices. D) Learn the importance of creation.25. A) To attract foreign investments. C) To arouse public interest in crafts.B) To preserve the traditional culture. D) To boost the local economy.Part III Reading Comprehension (40 minutes)Section ADirections: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.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（26）that belief, questioning whether brains really can be distinguished by gender.In the study, Tel Aviv University researchers（27）for sex differences the entire human brain.And what did they find? Not much. Rather than offer evidence for（28）brains 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-based（29）, many different types of brain can’t always be distinguished by gender.While the “average” male and “average” female brains were（30）different, you couldn’t tell it by lo oking 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 gender and brain function. But he cautioned against concluding from this study that all brains are the same,（33）of gender.“There’s 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 plays a very important role in the brain “even when we are not clear exactly how.”Section BDirections: 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 i sn’t surprising that you’ll find plenty of strong opinions about the potential vulnerabilities of popular home-security 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 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 (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 eye on windows, doors, motion, and more. If they detect something wrong while the system is armed, they’ll transmit a wireless alert 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 right device tuned to the right 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 u nique 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, let’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—that means that a potential thief can find what they need to know with minimal Googling. They will, however, need so know wha t 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 forced-entry atta ck 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 Editor’s 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 handheld 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’santi-jamming system works. It caught us in the act, sent an alert to my smartphone, 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 in 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 Frontpoint 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 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, it’s possible to jam any wireless trans mission. 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 whil e you’re away. So the thief will still need to break in. That means defeating the lock somehow, or breaking a window. He’ll need to be jamming you at this point, as a broken window or openeddoor would normally release the alarm. So, 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’ll need to do so without tripping the anti-jamming system, the details of which he almost certainly does now 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. They’re also only 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 theoretically exploit. A good system is one that keeps that worst-case setting as improbable as possible while also offering strong protection in the event of a less-extraordinary attack.36. It is possible for burglars to make jamming attacks with the necessary equipmentand skill.37. Interfering with a wireless security system is similar to interfering with aconversation.38. A burglar has to continuously jam the wireless security device to avoid triggeringthe alarm, both inside and outside the house.39. SimpliSafe provides devices that are able to distinguish incidental radiointerference from targeted jamming attacks.40. Only a very small proportion of burglaries are committed by technical means.41. It is difficult to crack SimpliSafe as its system keeps changing.42. Wireless devices will transmit signals so as to activate the alarm once somethingwrong is detected.43. Different measures should be taken to protect one’s home from burglary inaddition to the wireless security system.44. SimpliSafe’s device can send a warning to the house owner’s cellphone.45. Burglars can easily get a security device’s frequency by Internet search.Section CDirections:There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A),B),C) and D).You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.As a person who writes about food and drink for a living. I couldn’t tell you the first thing about Bill Perry or whether the beers he sells are that great. But I can tell you that I like this guy. That’s beca use he plans to ban tipping in favor of paying his servers an actual living wage.I hate tipping.I hate it because it’s an obligation disguised as an option. I hate it for thepost-dinner math it requires of me. But mostly, I hate tipping because I believe I would be in a better place if pay decisions regarding employees were simply left up to their employers, as is the custom in virtually every other industry.Most of you probably think that you hate tipping, too. Research suggests otherwise. You actually love tipping! You like to feel that you have a voice in how much money your server makes. No matter how the math works out, you persistently view restaurants with voluntary tipping systems as being a better value, which makes it extremely difficult for restaurants and bars to do away with the tipping system.One argument that you tend to hear a lot from the pro-tipping crowd seems logical enough: the service is better when waiters depend on tips, presumably because they see a benefit to successfully veiling their contempt for you. Well, if this were true, we would all be slipping a few 100-dollar bills to our doctors on the way out their doors, too. But as it turns out, waiters see only a tiny bump in tips when they do an exceptional job compared to a passable one. Waiters, keen observers of humanity that they are, are catching on to this; in one poll, a full 30% said they didn’t believe the job they did had any impact on the tips they received.So come on, folks: get on board with ditching the outdated tip system. Pay a little more upfront for your beer or burger. Support Bill Perry’s pub, and any other bar or restaurant that doesn’t ask you to do drunken math.46. What can we learn about Bill Perry from the passage?A) He runs a pub that serves excellent beer.B) He intends to get rid of the tipping practice.C) He gives his staff a considerable sum for tips.D) He lives comfortably without getting any tips.47. What is the main reason why the author hates tipping?A) It sets a bad example for other industries.B) It adds to the burden of ordinary customers.C) It forces the customer to compensate the waiter.D) It poses a great challenge for customers to do math.48. Why do many people love tipping according to the author?A) They help improve the quality of the restaurants they dine in.B) They believe waiters deserve such rewards for good service.C) They want to preserve a wonderful tradition of the industry.D) They can have some say in how much their servers earn.49. What have some waiters come to realize according to a survey?A) Service quality has little effect on tip size.B) It is in human mature to try to save on tips.C) Tips make it more difficult to please customers.D) Tips benefit the boss rather that the employees.50. What does the author argue for in the passage?A) Restaurants should calculate the tips for customers.B) Customers should pay more tips to help improve service.C) Waiters deserve better than just relying on tips for a living.D) Waiters should be paid by employers instead of customers.Passage TwoQuestions 51 to 55 are based on the following passage.In the past, falling oil prices have given a boost to the world economy, but recent forecasts for global growth have been toned down, even as oil prices sink lower and lower. Does that mean the link between lower oil prices and growth has weakened?Some experts say there are still good reasons to believe cheap oil should heat up the world economy. Consumers have more money in their pockets when the y’re paying less at the pump. They spend that money on other things, which stimulates the economy.The biggest gains go to countries that import most of their oil like China, Japan, and India, But doesn’t the extra money in the pockets of those countries’ consumers mean an equal loss in oil producing countries, cancelling out the gains? Not necessarily, says economic researcher Sara Johnson. “Many oil producers built up huge reserve funds when prices were high, so when prices fall they will draw on their reserves to support government spending and subsidies(补贴) for their consumers.”But not all oil producers have big reserves, In Venezuela, collapsing oil prices have sent its economy into free-fall.Economist Carl Weinberg believes the negative effects of plunging oil prices are overwhelming the positive effects of cheaper oil. The implication is a sharp decline in global trade, which has plunged partly because oil-producing nations can’t afford to import as much as they used to.Sara Johnson acknowledges that the global economic benefit from a fall in oil prices today is likely lower than it was in the past. One reason is that more countries are big oil producers now, so the nations suffering from the price drop account for a larger share of the global economy.Consumers, in the U.S. at least, are acting cautiously with the savings they’re getting at the gas pump, as the memory of the recent great recession is still fresh in their mind. And a number of oil-producing countries are trimming their gasolinesubsidies and raising taxes, so the net savings for global consumers is not as big as the oil price plunge might suggest.51. What does the author mainly discuss in the passage?A) The reasons behind the plunge of oil prices.B) Possible ways to stimulate the global economy.C) The impact of cheap oil on global economic growth.D) The effect of falling oil prices on consumer spending.52. Why do some experts believe cheap oil will stimulate the global economy?A) Manufacturers can produce consumer goods at a much lower cost.B) Lower oil prices have always given a big boost to the global economy.C) Oil prices may rise or fall but economic laws are not subject to change.D) Consumers will spend their saving from cheap oil on other commodities.53. What happens in many oil-exporting countries when oil prices go down?A) They suspend import of necessities from overseas.B) They reduce production drastically to boost oil prices.C) They use their money reserves to back up consumption.D) They try to stop their economy from going into free-fall.54. How does Carl Weinberg view the current oil price plunge?A) It is one that has seen no parallel in economic history.B) Its negative effects more than cancel out its positive effects.C) It still has a chance to give rise to a boom in the global economy.D) Its effects on the global economy go against existing economic laws.55. Why haven’t falling oil prices boosted the global economy as they did before?A) People are not spending all the money they save on gas.B) The global economy is likely to undergo another recession.C) Oil importers account for a larger portion of the global economy.D) People the world over are afraid of a further plunge in oil prices.Part IV Translation (30minutes)Directions: For this part,you are allowed 30minutes to transtate a passage from Chinese into English.You should write your answer on Answer Sheet 2.在中国文化中，红色通常象征着好运、长寿和幸福，在春节和其他喜庆场合，红色到处可见。
2016年度十二月月考试试卷正卷
沙洋中学2016年度十二月月考试试卷 命题人：雷 刚 审题人：王琳琛一、单选题（本大题共5小题。
在每小题给出的四个选项中，只有一个选项是符合题目要求的）1. 在物理学的重大发现中科学家们创造出了许多物理学方法，如理想实验法、控制变量法、极限思想法、类比法和科学假说法、建立物理模型法等等．以下关于所用物理学研究方法的叙述不正确的是（ ）A ．在不需要考虑物体本身的大小和形状时，用质点来代替物体的方法叫假设法B ．根据速度定义式v=，当△t 非常非常小时，就可以表示物体在t 时刻的瞬时速度，该定义应用了极限思想方法C ．在探究加速度、力和质量三者之间的关系时，先保持质量不变研究加速度与力的关系，再保持力不变研究加速度与质量的关系，该实验应用了控制变量法D ．在推导匀变速运动位移公式时，把整个运动过程划分成很多小段，每一小段近似看作匀速直线运动，然后把各小段的位移相加，这里采用了微元法2.如图，质量为M 的斜面放在粗糙的水平地面上。
几个质量都是m 的不同物块，先后在斜面上以不同的加速度向下滑动，斜面始终保持静止不动。
下列关于水平地面对斜面底部的支持力和静摩擦力的几种说法中正确的有( )A ．匀速下滑时，支持力N m M g =+(),静摩擦力不为零；B ．匀加速下滑时，支持力N m M g <+(),静摩擦力的方向水平向右；C ．匀减速下滑时，支持力N m M g >+(),静摩擦力的方向水平向右；D ．无论怎样下滑，总是N m M g =+(),静摩擦力为零。
3.如图所示，斜面上固定有一与斜面垂直的挡板，另有一截面为 1/4 圆的光滑柱状物体甲放置于斜面上，半径与甲相等的光滑球乙被夹在甲与挡板之间，没有与斜面接触而处于静止状态．现在从球心O 1处对甲施加一平行于斜面向下的力F ，使甲沿斜面方向缓慢向下移动少许，设乙对挡板的压力大小为F 1，甲对斜面的压力大小为F 2，甲对乙的弹力为F 3.在此过程中:（ ）A ．F1逐渐增大，F 2逐渐增大 ，F 3逐渐增大B ．F 1逐渐减小，F 2保持不变，F 3逐渐减小C ．F 1保持不变，F 2逐渐增大， F 3先增大后减小D ．F 1逐渐减小，F 2保持不变， F 3先减小后增大4.以不同初速度将两个物体同时竖直向上抛出并开始计时，一个物体所受空气阻力可忽略，另一物体所受空气阻力大小与物体速率成正比，下列用虚线和实线描述两物体运动的v －t 图象可能正确的是( )5.关于超重和失重的下列说法中，正确的是( )．A ．超重就是物体所受的重力增大了，失重就是物体所受的重力减小了B ．物体做自由落体运动时处于完全失重状态，所以做自由落体运动的物体不受重力作用C ．物体具有向上的速度时处于超重状态，物体具有向下的速度时处于失重状态D ．物体处于超重或失重状态时，物体的重力始终存在且不发生变化二．不定项选题（本大题共5小题）6. 如图所示为位于水平面上的小车，固定在小车上的支架的斜杆与竖直杆的夹角为θ，在斜杆的下端固定有质量为m 的小球．下列关于杆对球的作用力F 的判断中，正确的是（ ）A ．小车静止时，F=mgsin θ，方向沿杆向上B ．小车静止时，F=mgcos θ，方向垂直于杆向上C ．小车向右做匀速运动时，一定有F=mg ，方向竖直向上D ．小车向右做匀加速运动时，一定有F ＞mg ，方向可能沿杆向上7. 物体在x 轴上做直线运动，则上下两图对应关系正确的是(图中F 表示物体所受的合外力，a 表示物体的加速度，v 表示物体的速度，x 表示物体的位移，C 、D 图中曲线为抛物线)( )8.如图所示，物体B 的上表面水平，A 、B 相对于斜面C 静止，当斜面C 受到水平力F 向左匀速运动的过程中（ ）A ．物体A 可能受到3个力的作用B ．物体B 一定受到4个力的作用C ．物体C 对物体B 的作用力竖直向上D ．物体C 和物体B 之间可能没有摩擦力9.如图所示，在光滑的水平面上放着紧靠在一起的A 、B 两物体，B 的质量是A 的2倍，B 受到向右的恒力F B ＝2 N ，A 受到的水平力F A ＝(9－2t) N (t 的单位是s )．从t ＝0开始计时，则下列说法错误的是( )A ．A 物体在3 s 末时刻的加速度是初始时刻的511B ．t>4 s 后，B 物体做匀加速直线运动C ．t ＝4.5 s 时，A 物体的速度为零D ．t>4.5 s 后，A 、B 的加速度方向相反10.受水平外力F 作用的物体，在粗糙水平面上作直线运动，其v －t 图线如图所示，则( )A ．在0～t1秒内，外力F 大小不断增大B ．在t 1时刻，外力F 为零C ．在t 1～t 2秒内，外力F 大小可能不断减小D ．在t 1～t 2秒内，外力F 大小可能先减小后增大三．实验题。
2016届高三12月学生学业能力调研考试数学试卷(理)(无答案)
2015-2016 第一学期高三数学 ( 理 )12 月学生学业能力调研卷考生注意：1. 本试卷分第Ⅰ卷基础题（ 130 分）和第Ⅱ卷提升题（ 20 分）两部分，共 150 分。
2. 试卷书写规范工整，卷面整齐清楚，酌情减3-5 分，并计入总分。
知识技术学习能力 习惯养成 总分 内容数列 分析 函数三角 规律总结卷面整齐15034354734203-5 分第 I卷 基础题（共 130 分）一、选择题（每题 5 分，共 20 分）1. 已知F 、Fx 2y 21(a 0,b 0) 的左、右焦点，P 为双曲线上的一分别是双曲线12 a 2 b 2点，若 F 1 PF 2 90 ，且F 1PF 2 的三边长成等差数列，则双曲线的离心率是（）A ． 5B ． 4C ． 3D ． 22. 如图， BC 、 DE 是半径为 1 的圆 O 的两条直径，BF 2FO ，则 FDFE 的值是 （ ）A ．3 B ．1 8 44C ．D ．4993. 函数f ( x)1og 2 x, x 02xa, x 0 有且只有一个零点的充要条件是（）A ． a 0或a 11C ． a 0D ． a 0B ． 0 a24．已知抛物线 y 22 px( p 0) 的焦点为 F, 准线为 l , A, B 是抛物线上的两个动点, 且AFB, 设线段 AB 的中点 M 在 l上的射影为 N , 则MN的最大值是（）3ABA ．1B. 1C.3 D. 222二、填空题：（每题 5 分，共 35 分）5. 在平面直角坐标系xOy 中，以 x 轴为始边作锐角，它的终边与单位圆订交于点A ，且点 A 的横坐标为5，则 tan() 的值为____________.1326. 要获得函数y sin x cos x 的图像，能够由函数 y sin x cos x 的图像向左平移获得，则平移的最短长度为______________.7 设二次函数 f x ax24x c 的值域为0,，且 f14，则u a4 a2cc24的取值范围是 ____________.8. 在直角坐标系中，圆C1的方程为x2y 24x 4 y 0 ，圆 C2的参数方程x1 a c os ,是参数），若圆 C 与圆 C相切，则实数 a 的值为（．y1 a s i n .129. 设a为实常数，y f (x) 是定义在R上的奇函数，当x0时，f ( x)9xa2，若7xf ( x)a1对全部x0 建立，则 a 的取值范围为______.10. 已知a,b,c分别为ABC三个内角A, B, C的对边， a2，且2 b (sin A sin B)(c b) sin C ，则ABC 面积的最大值为____________.11.给出以下六个命题：（1）若f ( x1) f (1x) ，则函数 f ( x) 的图像对于直线x1对称;（2）y f ( x1)与 y f (1x) 的图像对于直线x0对称;1x（3）y sin 2 x2015 无最大值也无最小值;2（4）y 2 tan x的最小正周期为;1tan 2x（5）y sin x(0x 2) 有对称轴两条，对称中心三个; 则正确命题是 _____．三、解答题： ( 共 75 分 )12. (12分)（Ⅰ）乞降： a n a n1b ab n 1 b n (ab0) ；（Ⅱ）已知 a n2n, b n3n，将数列 { a n } 的各项挨次作为数列c n的奇数项，将数列 { b n }的各项挨次作为数列c n的偶数项，求数列c n的通项公式；（Ⅲ）数列 an n2求数列 { a } 的通项公式.知足n a12,ia i4n 1 (n 2),ni1213. (10 分 ) 已知a( 3 sin x cos x,1) ， b (cos x,m) ，函数f x a b (m R )的图π象过点 M( ,0).（Ⅰ）求 m 的值以及函数 f x 的最小正周期和单一增区间；（Ⅱ）在△ABC 中，角A，B， C 的对边分别是 a ，b， c .若ccosB + bcosC = 2acosB，求 f (A) 的取值范围．14.(12 分 )已知数列 { a n } 前n项和 S n n2.（Ⅰ）求数列 { a n } 的通项公式；（Ⅱ）设 b n a n，求数列 { b n } 的前 n 项和 T n；2n（Ⅲ）求使不等式(11)(11) (11) p 2n 1 对全部 n N 均建立的最大实数a1a2a np的值．15.（ 17 分）已知中心在原点O ，焦点在x轴上的椭圆，离心率3，且椭圆过点e2(2,2) ．2( Ⅰ ) 求该椭圆的方程；(Ⅱ)过点 (1，1)的直线 (斜率存在 )与该椭圆交于、两点，且 || ＝ || ，求D2M P Q DP DQ此直线的方程；（Ⅲ）过点 E(1 ， 0)的直线 ( 斜率存在 ) 与该椭圆M交于P、Q两点，且 | EP| ＝ 2|EQ| ，求此直线的方程；（Ⅳ）设可是原点 O 的直线 l 与该椭圆交于P 、Q 两点，知足直线 OP 、 PQ 、OQ 的斜率挨次成等比数列，求OPQ 面积的取值范围．16. （ 12分）已知函数()221, (),( )ln(1) .f x axx a Rg x x（Ⅰ） y g(x)x在 [0,1] 上的最小值;（Ⅱ）存在 x (0,)使不等式 a(x21) f ( x)x建立,务实数 a 的取值范围;2e x17. （ 12 分）（ 1）记函数( x) ax 2 2x 1 ln( x1) 的图像为C，l 为曲线C在点p(0,1)1的切线，若存在 a ,使直线l与曲线C有且仅有一个公共点，求知足条件的全部a的值； 2（2）判断xsin x 1（x (0,5)）实根的个数；（3）达成填空用方程表述用函数零点表述若函数 y f ( x) 和y g (x) 的图像在 ( a, b)内有交点第Ⅱ卷提升题（共20 分）18. 已知f (x )(x1)2，g(x ) 10(x1) ，数列a n知足 a1 2 ，(a n 1 a n )g(a n ) f (a n )0 ， b n 9( n 2)(a n1) ．10（Ⅰ）求证：数列 a n 1 是等比数列；（Ⅱ）当 n 取何值时，b n取最大值，并求出最大值；（ III ）若t m t m 1对随意 m N*恒建立，务实数t 的取值范围．b mbm 12015-2016第一学期高三数学( 理 )12 月学生学业能力调研卷答题纸知识与技术学法题卷面整齐总分得分框第Ⅰ卷基础题（共130 分）一、选择题（每题 5 分，共 20分）题号1234答案二、填空题（每题 5 分，共 35分）5. 6.7.8.9.10.11.三、解答题（本大题共 5 题，共 75 分）12.（12 分）13（ 10 分）14（ 12 分）15（ 17 分）16（ 12 分）17（ 12 分）用方程表述用函数零点表述若函数 y f ( x) 和 y g( x) 的图像在 (a,b) 内有交点第Ⅱ卷提升题（共20 分）18（ 20 分）。
2016-2017学年度12月月考卷(普通用卷)
1第I 卷（选择题）一、单选题：1．《二十世纪西方文学史》在描述西方某文学流派时说：它“是极端唯美的，那种阳春白雪的高调使得它只可能在少数知识分子群体中流传而缺乏广泛的群众根基，因而它显得底气匮乏和先天孱弱，更为糟糕的是，它太内化，太个人主义，太拘泥于个人感受，同社会潮流的距离也太远了一些”。
下列作品符合这一流派的是 A. B. C. D.2．英国文学史上有三位诗人：威廉·华兹华斯、萨繆尔·柯勒律治和罗伯特·骚塞。
他们曾在英国西北部的昆布兰湖区居住，称为“湖畔派”。
他们缅怀中世纪和宗法式的乡村生活，对法国大革命抱着矛盾的态度，竭力讴歌的是宗法制的农村生活和大自然，喜欢描写神秘离奇的情景与异国风光。
他们的创作风格属于A.古典主义B.浪漫主义C.批判现实主义D.现代主义3．罗兰·斯特龙伯格在《西方现代思想史》中评价一种文学艺术流派时说：“(它)可以在一定程度上理解为对启蒙运动的一种反抗……启蒙运动推崇理性主义……不喜欢强烈的激情、主观性和混乱无序……人的精神是镜与灯，它照亮通往真理之路，而不仅仅是反映真理，人的精神天生具有想象力与创造性，实际上能够塑造外部世界。
”这里评价的文学艺术流派是A.古典主义B.浪漫主义C.现实主义D.现代主义4．18世纪末19世纪初西方某文学流派“以艺术的方式描摹了这一特定时代人激荡、亢奋而敏感、纤弱的心灵世界，展现了有着强烈个性扩张欲望的自我”。
体现该风格的作品是A.雨果的《巴黎圣母院》B.巴尔扎克的《人间喜剧》C.托尔斯泰的《战争与和平》D.萧伯纳的《苹果车》5．“至于他那两只脚，有时每只脚都穿一只短袜，或者一只脚穿短袜，另一只脚穿长袜，或一只靴子，或一只鞋，或一只拖鞋，或一只短袜和靴子，或一只短袜和鞋子，或一只短袜和拖鞋，或一只长袜和靴子。
或一只长袜和鞋，或一只长袜和拖鞋。
”这种文学形式主要反映了现代西方A.科技的迅速发展B.人口素质的提高C.心灵的迷茫和痛苦D.经济的迅速发展6．南宋山水画家描绘祖国河山，表达爱国情怀，同时保持着一种将绘画意境更推向心境的创作意识。
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Part Ⅰ V ocabulary and Structure (1×40 points)Directions: There are 40 incomplete sentences in this part. For each sentence there are four choices marked A, B, C and D. Choose the ONE that best completes the sentence，and then mark the corresponding letter on the Answer Sheet.1.（）Class is to begin in a minute, but the teacher still hasn‟t _____.A. come onB. turned outC. come alongD. turned up2.（）By the end of last year we _____ more than 200 students of English all over the province.A. trainedB. would have trainedC. had trainedD. have trained3.（）You don‟t have to pay for your flights; they‟re ______ in the price of your holiday.A. concludedB. heldC. settledD. included4.（）“Let me _______ you，” s aid my boss，“you should call me immediately after you arrive at the airport.”A. askB. adviseC. rememberD. remind5.（）This motorcycle is very good, but I don‟t think I can ___ it.A. payB. spendC. affordD. cost6.( ) The thief had disappeared ______ the boy could stop him.A. asB. onceC. beforeD. until7.（）Tom has worked so hard this year that he will earn ______ he did last year.A. twice as much money asB. as much money as twiceC. twice money as much asD. as twice much money as8.（）Michael _____ to pass the examination at his second attempt.A. succeededB. completedC. realizedD. Managed9.（）The boys spent the whole morning _______ possible answers to the question.A. discussB. and discussingC. discussingD. and discussed10.（）Take my ____, young man, and don‟t drive so fast.A. noticeB. expressionC. adviceD. experience11.( ) It is hard to imagine how people will _______ the winter without electricity.A. get awayB. get inC. get outD. get through12.（）These three English novels are for you. The rest _______ for the other students in your class.A. wereB. isC. areD. was13.（）Have you ever been to the square ______ was built last year?A. whichB. whereC. whenD. what14.（）You _______ have seen Jane in her office last Friday；she's been out of town for two weeks.A. couldn'tB. mustn…tC. wouldn'tD. shouldn…t15.（）Not until he finished his homework _____ him to watch TV in the evening.A. his mother allowedB. his mother had allowedC. did his mother allowD. had his mother allowed16.（）Her dog ran out of the yard _____ the old lady opened the gate.A. momentB. a momentC. the momentD. that moment17.（）Have you been to the little village ________ your father spent his childhood?A. thatB. whereC. whichD. when18.（）Don‟t forget the f act ______ he was not at home that night.A. whyB. whichC. thatD. Whether19.（）I wish I ____ able to tell him all about it last night.A. wasB. wereC. had beenD. should be20.（）Catherine is one of the brightest students who _____ from the Department of Computer Science, Brown University.A. is graduatedB. has graduatedC. are graduatedD. have graduated21.( ) David won't come to my wedding party _____ I send him an invitation.A. whenB. unlessC. asD. after22.（）Was it last Friday ________ you met him？A. thatB. on whichC. whichD. when23.（）You may invite _______ wants to go.A. whomeverB. whoeverC. which oneD. people24.（）He thought nobody was around, but he was in fact seen _____ into the office building.A. to stealB. stealC. stoleD. stolen25.（）______ any friends in the city，he felt quite lonely and helpless.A. No to haveB. No havingC. Not to haveD. Not having26.（）Human's brains are larger in proportion to their bodies than _______.A. whalesB. a whaleC. that of whalesD. those of whales27.（）Don‟t worry about Susan; she just feels like _____ home alone tonight.A. to stayB. stayC. stayingD. having stayed28.（）. Supposing I ___ this gift, what would he say?A. acceptB. acceptedC. should acceptD. would accept29.（）All books are________ to the library before Friday.A. returnedB. to be returnedC. to have returnedD. to return30（）__________for the timely investment from the general public,our company would not be so thriving as it is.A.Had it not beenB. Were it notC. Be it notD. Should it not be31.（）It is necessary that this machine-tool _______ every day.A. be oiledB. oilC. is to be oiledD. oiled32.( ) _______ for the work, he went to sleep at ease.A.Well preparedB.PreparingC.Being preparedD.To prepare33. ( )---“What makes you so upset?”---“_________ three tickets to the pop music concert.”A. LostB. LosingC. Because of losingD. Since I lost34.（）I suppose you‟re not going today,______?A. are youB. do youC. don‟t youD. aren‟t you35.( )In the United States, there are over 22 million adults using the Web, about half of _________access the Internet at least once a day.A.whomB. themC. theyD. It36.( ). It was_______he said ________ disappointed me.A. what; thatB. that; thatC. what; whatD. that; what37.( )the speaker raised his voice but still couldn‟t make himself _____A hearB to hearC hearingD heard38( ).________ is bad for his health.A. Mike smokingB. Mike's smokingC. Mike's being smokingD. Mike smokes39.( )Dr. Zhang was always _______the poor and the sick, his private clinic often providing them with free medical care.A. tended byB. absorbed inC. concerned aboutD. reminded of40. ( )Is this factory ________we visited last year ?A. in whichB. around thatC. whomD. the onePart Ⅱ Cloze (1×20 points)Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A, B,C and D. You should choose the ONE that best fits into the passage and mark the corresponding letter on the Answer Sheet.From childhood to old age, we all use language as a means of broadening our knowledge of ourselves and the world about us. When humans first 41 , they were like newborn children, unable to use this 42 tool. Yet once language developed, the possibilities for human kind's future 43 and cultural growth increased.Many linguists believe that evolution is 44 for our ability to produce and use language. They 45 that our highly evolved brain provides us 46innate language ability not found in lower 47 . Proponents of this innateness theory say that our 48 for language is inborn, but that language itself develops gradually, 49 a function of the growth of the brain during childhood. Therefore there are critical 50 times for language development.Current 51 of innateness theory are mixed, however, evidence supporting the existence of some innate abilities is undeniable. 52 , more and more schools are discovering that foreign languages are best taught in 53 grades. Young children often can learn several languages by being 54 to them, while adults have a much harder time learning another language once the 55 of their first language have become firmly fixed.56 some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been 57 from other human beings do not possess language. This demonstrates that 58 with other human beings is necessary for proper language development. Some linguists believe that this is even more basic to human language 59 than any innate capacities. These theorists view language as imitative, learned behavior. 60 , children learn language from their parents by imitating them. Parents gradually shape their child's language skills by positively reinforcing precise imitations and negatively reinforcing imprecise o nes.41. A.generated B.evolved C.born D.originated42. A.valuable B.appropriate C.convenient D.favorite43. A.attainments B.feasibility C.entertainments D.evolution44. A.essential B.available C.reliable D.responsible45. A.confirm rm C.claim D.convince46. A.for B.from C.of D.with47. anizations anisms C.humans D.children48. A.potential B.performance C.preference D.passion49. A.as B.just as C.like D.unlike50. A.ideological B.biological C.social D.psychological51. A.reviews B.reference C.reaction D.recommendation52. A.In a word B.In a sense C.Indeed D.In other words53. A.various B.different C.the higher D.the lower54. A.revealed B.exposed C.engaged D.involved55. A.regulations B.formations C.rules D.constitutions56. A.Although B.Whether C.Since D.When57. A.distinguished B.different C.protected D.isolated58. A.exposition parison C.contrast D.interaction59. A.acquisition B.appreciation C.requirement D.alternative60. A.As a result B.After all C.In other words D.Above allPart Ⅲ Reading Comprehension (2×20 points)Directions: There are 4 passages in this part. Each passage is followed by some questions or incomplete statements. For each of them there are 4 choices marked A,B,C and D. You should decide on the best choice, and mark the corresponding letter on the Answer Sheet.Passage 1In 1993 New York State ordered stores to charge a deposit on beverage containers. Within a year. Consumers had returned millions of aluminum cans and glass and plastic bottles. Plenty of companies were eager to accept the aluminum and glass as raw materials for new products. But because few could figure out what to do with the plastic, much of it wound up buried in landfills (垃圾填埋场). The problem was not limited to New York. Unfortunately, there were too few uses for second-hand plastic.Today, one out of five plastic soda bottles is recycled in the United States. The reason for the change is that now there are dozens of companies across the country buying discarded plastic soda bottles and turning them into fence posts,paint brushes,etc.As the New York experience shows, recycling involves more than simply separating valuable materials from the rest of the rubbish. A discard remains a discard until somebody figures out how to give it a second life-and until economic arrangements exist to give that second life value. Without adequate markets to absorb materials collected for recycling, throwaways actually depress prices for used materials.Shrinking landfill space, and rising costs for burying and burning rubbish are forcing local governments to look more closely at recycling. In many areas, the East Coast especially, recycling is already the least expensive waste-management option. For every ton of waste recycled, a city avoids paying for its disposal, which, in parts of New York, amounts to saving of more than $100 per ton. Recycling also stimulates the local economy by creating jobs and trims the pollution control and energy costs of industries that make recycled products by giving them a more refined raw material.61.What regulation was issued by New York State concerning beverage containers?A Beverage companies should be responsible for collecting and reusing discarded plastic soda bottles.B Throwaways should be collected by the state for recycling.C A fee should be charged on used containers for recycling.D Consumers had to pay for beverage containers and could get their money back on returning them.62.The returned plastic bottles in New York used to ________.A end up somewhere undergroundB be turned into raw materialsC have a second-life valueD be separated from other rubbish63.The key problem in dealing with returned plastic beverage containers is ________.A to sell them at a profitable priceB how to turn them into useful thingsC how to reduce their recycling costsD to lower the prices for used materials64.Recycling ahs become the first choice for the disposal of rubbish because ______.A local governments find it easy to manageB recycling ahs great appeal for the joblessC recycling causes little pollutionD other methods are more expensive65.It can be concluded from the passage that ________.A rubbish is a potential remedy for the shortage of raw materialsB local governments in the U. S. can expect big profits from recyclingC recycling is to be recommended both economically and environmentallyD landfills will still be widely used for waste disposalPassage 2An Australian company, Smart Car Technologies, has developed a system that lets drivers know when they‟re speeding. When the technology becomes commercially available, it could help lead-footed drivers avoid tickets and also save lives. The company that developed the product hopes to convince Australian government agencies to put the technology into use in their automobile fleets.The product, called Speed Alert, links real-time location data and speed obtained with the help of GPS to a database of posted speed limits stored in a driver‟s PDA or programmable mobile phone. The setup of the product does not need to be hooked up to a car‟s speedometer. In fact, it is entirely portable. It will al so work with newer phones and PDAs that have built-in GPS receivers. If a driver exceeds the speed limit, the speed is shown and an alert sounds.Michael Paine, an Australian vehicle design engineer and traffic safety consultant, was hired to analyze the product. He told Live Science that his colleagues in the road safety field are “very enthusiastic” about what they‟re now calling “intelligent speed alert.” Other research, according to Paine, shows that 40 percent of all traffic deaths involve speeding. T here is also a potentially controversial future use: “Since the system is so portable, it would be easy to make it a requirement for teenagedrivers to always use a speed alert device when driving,” Paine said. “The system even has the capability to record speeding violations, so parents can monitor their teenage drivers.”The product will soon go on sale in Sydney.66. What‟s the purpose of the new product?A. To inform us of the new car system.B. To introduce some improvement in cars.C. To limit certain drivers to safe driving.D. To popularize the built-in car system.67. Lead-footed drivers refer to the ones .A. who drive too carelesslyB. that drive extremely fastC. who are partly disabledD. that drive too slowly68. The second paragraph mainly talks about .A. the project of the built-in productB. why the system becomes popularC. the functions of GPS in carsD. how the product is programmed69. Which of the following is true of Speed Alert according to Michael Paine?A.Most of the traffic deaths can be avoided.B.B. Speeding violations can be easily found out.C. The system will excite some teenage drivers.D. The product will not be available for adults.70. What can be the best title of the passage?A. Speed Alert and Its Future UseB. Progress in Car-making ScienceC. Warning for Adventurous DriversD. New In-Car Device Against SpeedingPassage3Although Paris is often considered the city of romance，close to a million adults who call it home are sing le. Many single people say that France‟s capital is one of the most difficult places to meet people. The complaints of this lonely group have inspired a new phenomenon known as “supermarket dating.”At Galerie Lafayette Gourmet，singles can shop for more than just the items on their grocery list. They can look for someone who has blue eyes，brown hair，and is 1.8 meters tall，or whatever may be on their romantic shopping list.At this paris location，single people of all ages can schedule their shopping for Thursday nights between 6:30 and 9:00 p.m. When they walk through the door，they pick up a purple basket to advise that they are looking for love. They try to arrive early because the baskets disappear quickly，and then they have to wait in line for their turn to wander the store aisles（过道）.With purple baskets in hand，shoppers can consider their romantic options while they pick out their groceries. When they are ready to pay，they can go to the checkout line for singles who want to chat.Most of the people who look for love in the supermarket are skeptical of Internet dating. They know that it is easy to embellish（美化）one‟s appearance or to lie about one‟s age over the Internet. The supermarket，on the other hand，is considered a safe and casual environment in which to meet a potential match. In addition，what one finds in another‟s grocery basket can say a thing or two about that person‟s character or intentions. Buying pet food can be a man‟s way of showing a potential match that he has a sensitive side. Women who fill their baskets with low-fat food show their healthy style of living. These days it‟s possible to find much more than food at a grocery store.7l. What do many single people in Pairs complain about?A. The difficulty in meeting people.B. The idea of supermarket dating.C. The items on their grocery list.D. The inconvenience in shopping.72. Which of the following can be inferred but is not clearly stated in the second paragraph?A. The dating supermarket is located in Paris.B. The dating supermarket is open only on Thursday evenings.C. People looking for love must get a basket of a particular colourD. The dating supermarket has very good business.73. How do love shoppers meet one another?A. They schedule their meeting in advance.B. They go through a special checkout.C. They pick out their groceries with great care.D. They dial the phone numbers on their shopping items.74.According to the writer, a possible way to win a woman‟s heart is to______.A. pick up a purple basketB. Buy low-fat foodC. embellish your appearanceD. buy pet food75. Why do the people prefer the supermarket dating to Internet dating?A. The supermarket dating is more convenient.B. The supermarket dating is more casual.C. The supermarket dating can be trusted more.D. The supermarket dating is less expensive.Passage 4Many people who work in London．prefer to live outside it, and to go in to their offices or schools every day by train，car or bus，even though this means they have to get up early in the morning and reach home late in the evening．One advantage of living outside London is that houses are cheaper．Even a small flat in London without a garden costs quite a lot to rent．With the same money one can get a little house in the country with a garden of one‟s own.Then，in the country one can rest from the noise and hurry of the town．Even though one has to get up earlier and spend more time in trains or buses，one can sleep better at night and during weekends and on summer evenings，one can enjoy the fresh，clean air of the country．If one likes gardens，one can spend one‟s free time digging，planting，watering and doing the hundred mad one other jobs which are needed in a garden．Then, when the flowers and vegetables come up，one has the reward of one who has shared the secret of Nature．Some people，however take no interest in。