2018年12月大学英语四级真题三套翻译
2018年大学英语四级真题翻译
2018年大学英语四级真题翻译Directions:For this part,you are allowed30minutes to translate a passage from Chinese into English.You should write your answer on Answer Sheet2.过去，乘飞机出行对大多数中国人来说是难以想象的。
如今，随着经济的发展和生活水平的提高，越来越多的中国人包括许多农民和外出务工人员都能乘飞机出行。
他们可以乘飞机到达所有大城市，还有很多城市也在筹建机场。
航空服务不断改进，而且经常会有廉价机票。
近年来，节假日期间选择乘飞机外出旅游的人数在不断增加。
【参考译文】In the past,traveling by plane was unimaginable for most Chinese people.Nowadays,with the development of China’s economy and the improvement of people’s living standards,more and more Chinese people,including many farmers and migrant workers,can travel by air. They can fly to all major cities,and many other cities are also planning to build airports.Air sering continue to improve,and there are often cheap fllights.So in recent years,the number of people choosing to travel by air during holidays has been increasing.Directions:For this part,you are allowed30minutes to translate a passage from Chi nese into English.You should write your answer on Answer Sheet2.公交车曾是中国人出行的主要交通工具。
2018年12月四级第三套解析
2018年12月大学英语四级考试精编解析(第三套)Part Ⅰ Writing范文The Challenges of Starting a Career After GraduationThe recent years have witnessed a sharp rise in the number of college students who successfully start their careers after graduation. However, many others fail to do so because the transition from a student to an employee is actually full of challengesFirst of all, you might not be popular with every colleague, which is frustrating for a newcomer of the workplace. So you’d better try to make a good impression on all of your workmates, especially your boss. Furthermore, there probably is a gap between what you learned at school and what you are acquired to do at work. You have to learn quickly and avoid making too many stupid mistakes. Finally, you may find you are always on a tight budget because of the low salary for a new graduate and all kinds of living expenses, which make it difficult to make the ends meet.As the old proverb goes, “Well begun is half gone.” If you can handle these challenges skillfully after graduation, you will clear the path for further career development, either job promotion or starting your own business. So hang on and never give up!Part II Listening Comprehension说明：由于2018年12月四级考试全国共考了两套听力，本套真题听力与前两套内容相同，只是选项顺序不同，因此在本套真题中不再重复出现。
2018年12月大学英语四级真题及答案(第三套)
2018年12月大学英语四级考试真题（第3套）Part I Writing (30minutes)Directions: For this part, you are allowed 30 minutes to write a short essay on the challenges of starting a career after graduation. You should write at least120 words but no more than 180 words._________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________ _______________________________________________________________________Part II Listening Comprehension (25 minutes)说明：由于2018年12月四级考试全国共考了2套听力，本套真题听力与前2套内容完全一样，只是顺序不一样，因此在本套真题中不再重复出现。
Part ⅢReading 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.Questions 26 to 35 are based on the following passage.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.How a Poor, Abandoned Parisian Boy Became a Top ChefA) When you drop a piece of food on the floor, is it really OK to eat if you pick it up within five seconds? An urban food myth contends that if food spends just a few seconds on the floor, dirt and germs won’t have much of a chance to contaminate it. Research in my lab has focused on how food becomes contaminated, and we’ve done some work on this particular piece of wisdom.B) While the “five-second rule” might not seem like the most pressing issue for food scientists to get to the bottom of, it’s still worth investigating food myths like this one because they shape our beliefs about when food is safe to eat.C) So is five seconds on the floor the critical threshold（门槛）that separates a piece of eatable food from a case of food poisoning? It’s a bit more complicated than that. It depends on just how many bacteria can make it from floor to food in a few seconds and just how dirty the floor is.D) Wondering if food is still OK to eat after it’s dropped on the floor is a pretty common experience. And it’s probably not a new one either. A well-known, but inaccurate, story about Julia Child may have contributed to this food myth. Some viewers of her cooking show, The French Chef, insist they saw Child drop lamb on the floor and pick it up, with the advice that if they were alone in the kitchen, their guests would never know.E) In fact it was a potato pancake, and it fell on the stovetop, not on the floor. Child put it back in the pan, saying, “But you can always pick it up and if you’re alone in the kitchen, who’s going to see it?” But the misremembered story persists. It’s harder to pin down the origins of the oft-quoted five-second rule, but a 2003 study reported that 70% of women and 56% of men surveyed were familiar with the five-second rule and that women were more likely than men to eat food that had dropped on the floor.F) So what does science tell us about what a few moments on the floor means for the safety of your food? The earliest research report on the five-second rule is attributed to Jillian Clarke, a high school student participating in a research project at the University of Illinois. Clarke and her colleagues introduced bacteria to floor tiles（瓷砖）and then placed cookies on the tiles for varying times. They reported bacteria were transferred from the tiles to the cookies within five seconds, but didn’t report the specific amount of bacteria that made it from the tiles to the food.G) But how many bacteria actually transfer in five seconds? In 2007, my lab at Clemson University published a study in the Journal of Applied Microbiology. We wanted to know if the length of time food is in contact with a contaminated surface affected the rate of transfer of bacteria to the food. To find out, we introduced bacteria to squares of tile, carpet or wood. Five minutes after that, we placed either bacon or bread on the surface for 5,30 or 60 seconds, and then measured the number of bacteria transferred to the food. We repeated this exact procedure after the bacteria had been on the surface for 2,4,8 and 24 hours.H) We found that the number of bacteria transferred to either kind of food didn’t depend much on how long the food was in contact with the contaminated surface—whether for a few seconds or for a whole minute. The overall number of bacteria on the surface mattered more, and this decreased over time after the initial introduction. It looks like what’s at issue is less how long your food stays on the floor and much more how contaminated with bacteria that patch of floor happens to be.I) We also found that the kind of surface made a difference as well. Carpets, for instance, seem to be slightly better places to drop your food than wood or tile. When a carpet was contaminated, less than 1% of the bacteria were transferred. But when the food was in contact with tile or wood, 45-70% of bacteria were.J) Last year, a study from Aston University in the UK used nearly identical parameters（参数）to our study and found similar results. They also reported that 87% of people asked either would eat or had eaten food fallen on the floor.K) Should you eat food fallen on the floor then? From a food safety standpoint, if you have millions or more bacteria on a surface, 0.1% is still enough to make you sick. Also, certain types of bacteria are extremely harmful, and it takes only a small number to make you sick. For example, 10 bacteria or less of an especially deadly strain of bacteria can cause severe illness and death in people with compromised immune systems. But the chance of these bacteria being on most surfaces is very low.L）And it’s not just dropping food on the floor that can lead to bacterial contamination. Bacteria are carried by various “media”, which can include raw food, moist surfaces where bacteria have been left, our hands or skin and from coughing or sneezing（打喷嚏）. Hands, foods and utensils（器皿）can carry individual bacteria living in communities contained within a protective film. These microscopic layers of deposits containing bacteria are known as biofilms and they are found on most surfaces and objects. Biofilm communities can harbor bacteria longer and are very difficult to clean. Becteria in these communities also have an enhanced resistance to sanitizers（清洁剂）and antibiotics compared to bacteria living on their own.M）So the next time you consider eating fallen food, the odds are in your favor that you can eat it without getting sick. But in the rare chance that there is a micro-organism that there is a micro-organism that can make you sick on the exact spot where the food dropped, you can be fairly sure that the bug is on the food you are about to put in your mouth.N）Research or common sense tells us that the best thing to do is keep your hands, utensils and other surfaces clean.36. A research project found bacteria made their way to the food on the floor in five seconds.37. Whether food is contaminated depends much on the number of bacteria that get onto it.38. Food contamination may result from various factors other than food dropping on the floor.39. Males are less likely than females to eat food that may have been contaminated.40. The author’s research centers around how food gets contaminated.41. Keeping everything clean is the best way to stay healthy.42. Chances are you will not fall sick because of eating food picked up from the floor.43. For a long time people have had the experience of deciding whether or not to eat food picked up from the floor.44. Some strains of bacteria are so harmful that a tiny few can have deadly consequences.45. Researchers found how many bacteria got onto the food did not have much to do with how long the food stayed on a contaminated floor.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 and 50 are based on the following passage.The latest in cat research reveals that the lovely animal seems to have a basic grasp on both the laws of physics and the ins and outs of cause and effect.According to a newly published study, cats seem to be able to predict the location of hiding prey（猎物）using both their ears and an inborn（天生的）understanding of how the physical world works.In a recent experiment, Japanese researchers taped 30 domestic cats reacting to a container that a team member shook. Some containers rattled（发出响声）；others did not. When the container was tipped over, sometimes an object fell out and sometimes it didn’t. It turns out that the cats were remarkably smart about what would happen when a container was tipped over. When an object did not drop out of the bottom of a rattling container, they looked at it for a longer time than they did when the container behaved as expected. “Cats use a causal-logical understanding of noise or sounds to predict the appearance of invisible objects,” lead researcher Saho Takagi says in a press release. The researchers conclude that cats’ hunting style may have developed based on their common-sense abilities to infer where prey is, using their hearing.Scientists have explored this idea with other endearing creatures: babies. Like cats, babies appear to engage in what’s called “preferential looking”—looking longer at things that are interesting or unusual than things they perceive as normal. When babies’ expectations are violated in experiments like the ones performed with the cats, they react much like their animal friends. Psychologists have shown that babies apparently expect their world to comply with the laws of physics and cause and effect as early as two months of age.Does the study mean that cats will soon grasp the ins and outs of cause and effect? Maybe. Okay, so cats may not be the next physics faculty members at America’s most important research universities. But by demonstrating their common sense, they’ve shown that the divide between cats and humans may not be that great after all.46.What do we learn from a newly published study about cats?A) They can be trained to understand the physical world.B) They know what kind of prey might be easier to hunt.C) They have a natural ability to locate animals they hunt.D) They are capable of telling which way their prey flees.47. What may account for the cats’ response to the noise from the containers?A) Their inborn sensitivity to noise.B) Their unusual sense of direction.C) Their special ability to perceive.D) Their mastery of cause and effect.48. What is characteristic of the way cats hunt, according to the Japanese researchers?A) They depend on their instincts. C) They wait some time before attack.B)They rely mainly on their hearing. D) They use both their ears and eyes.49. In what way do babies behave like cats?A) They focus on what appears odd.B) They view the world as normal.C) They do what they prefer to do.D) They are curious about everything.50. What can we conclude about cats from the passage?A) They have higher intelligence than many other animals.B) They interact withe the physical world much like humans.C) They display extraordinarily high intelligence in hunting.D) They can aid physics professors in their research work.Passage TwoQuestions 51 to 55 are based on the following passage.Imagine you enter a car with no steering wheel, no brake or accelerator padals（踏板）. Under a voice-activated command, you say an address. “The fastest route will take us 15.3 minutes. Should I take it?” You say “yes” and you are on your way. The car responds and starts moving all by itself. All you have to do is sit back and relax.How weird would it be if, one day in the future, everyone had such a car? No crazy driving, no insults, no cutting in; traffic laws would be respected and driving much safer. On the other hand, imagine the cost savings for local police enforcement and town budgets without all those speeding and parking tickets.A new technology has the potential to change modern society in radical ways. There’s no question that self-driving vehicles could be an enormous benefit. The potential for safer cars means accident statistics would drop: some 94% of road accidents in the U.S. involve human error. Older drivers and visually-or physically-impaired people would gain a new level of freedom. Maintaining safe speeds and being electric, self-driving cars would drastically reduce pollution levels and dependency on non-renewable fuels. Roads would be quieter, people safer.But we must also consider the impact of the new technology on those who now depend on driving for their livelihoods. According to the U.S. Department of Labor, in May 2015 there were 505,560 registered school bus drivers. The American Trucking Association lists approximately 3.5 million professional truck drivers in the U.S.The companies developing self-driving vehicles should be partnering with state and federal authorities to offer retraining for this massive workforce, many of whom will be displaced by the new technology. This is similar to what’s happening in the coal and oil industries a situation that fuels much of the current political discontent in this country. New technologies will, and should, be developed. This is how society moves forward. However, progress can’t be one-sided. It is necessary for the companies and state agencies involved to consider the ethical consequences of these potential changes to build a better future for all.51.What would be the impact of the extensive use of driverless cars?A) People would be driving in a more civilized way.B) It would save local governments a lot of money.C) More policemen would be patrolling the streets.D) Traffic regulations would be a thing of the past.52. How would the elderly and the disabled benefit from driverless cars?A) They could enjoy greater mobility.B) They would suffer no road accidents.C) They would have no trouble driving.D) They could go anywhere they want.53. What would be the negative impact of driverless cars?A) The conflict between labor and management would intensify.B) The gap between various sectors of society would be widened.C) Professional drivers would have a hard time adapting to new road conditions.D) Numerous professional drivers would have to find new ways of earning a living.54. What is the result of the introduction of new technologies in energy industries?A) Political dissatisfaction.B) Retraining of employees.C) Fossil fuel conservation.D) Business restructuring.55. What does the author suggest businesses and the government do?A) Keep pace with technological developments.B) Make new technologies affordable to everyone.C) Enable everyone to benefit from new technologies.D) Popularize the use of new technologies and devices.Part ⅣTranslation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.过去几年里，移动支付市场在中国蓬勃发展。
2018年12月英语四级真题答案解析
2018年12月英语四级真题答案解析（第1套）来源：文都教育Part I Writing【创业——参考范文】The Challenges of Starting a Career after GraduationFacing the rising employment pressure, a host of college graduates choose to start a career instead of looking for a regular job in a company. As we all know that, starting a career is beneficial to realize one’s own dreams and value. However, it is also widely acknowledged that stating a career will be inevitably confronted with numerous challenges.When it comes to the challenges that we may meet in the process of starting a career, the main ones can be listed as follows. First of all, as freshmen who have just entered into the society, it is obvious that college graduates lack related experience, which will increase the rate of failure they may encounter during starting a career. Being short of entrepreneurial experience is one of difficulties that college graduates need to overcome. In addition, the collection of money is another problem they should solve urgently. Otherwise, there is no possibility of starting a career.Although starting a career after graduation has so many challenges to be solved, college graduates still need take a positive attitude towards it. Moreover, prudent consideration and entrepreneurial spirit are also necessary for graduates to start a career.Part IIListening Comprehension【四级听力参考答案】C) Set up a mobile phone network on the moon.A) It is stable.B) No injuries were yet reported.B) Pull down the deserted shopping mall.A) Shrinking potato farming.C) It is afraid of the spread of disease.A) Global warming.C) Dull.D)she take notes.A) It keeps her mind active.B) It helps her better remember what she learns. A)To spend her honeymoon.A) In memory of a princess.D) It has walls decorated with jewels.B)They are mostly crowded.C)They provide residents with the resources needed.B)By inspiring their creativity.D)Their number increased modestly.C)It is an unusual cross breed.A)They are as loyal as doges.C)They shower with them.D) Excited but somewhat sad.A) It starts the moment they are born.D) Set a good example for them to follow.B) Their home life.Part III Reading comprehensionSectionAF) damageB) associatedM) sourcesD) constantG) describedE) controlH) equalsK) regularlyI)exclusivelyO) vehiclesSection B[D] Nadeau says sugar and...[B] Scott is delighted to get...[G] In Southern California...39. [A] Several times a month, you can...40. [I] Many people don’t know how to cook...41.[F] In the big picture, says Dr. Richard...42.[C] Nadeau notices the pre-made...43. [J] Studies have explored evidence that...44. [E] Nadeau is part of a small revolution...45. [G] In Southern California...Section CPassage oneB)By drawing water from the depths of the earth。
2018年12月英语四级真题及答案(已整理)
2018年12月大学英语四级真题及答案第一部分写作2018年12月大学英语四级考试写作真题(第1套)2018年12月英语四级真题写作范文(出国留学的挑战)【作文一参考范文】It is well known that due to the booming economy and increasing family income,studying abroad has become an increasingly popular choice for students.Although studying abroad is often praised by people for its advantages,there are still some disadvantages to be noticed.First of all,to study abroad is expensive.Specifically speaking,those involved have to spend a large amount of money on tuition and living expenses,which is not affordable for everyone.In addition,to study abroad is a great challenge for those students who lack the ability of living independently.If they can not take good care of themselves there,their academic performance will be affected to a large st but not least,to study abroad may exercise a negative influence on students’mentality.As we all know,to study abroad equals to stay away from family and friends for a long time,which is likely to produce some psychological problems for those students, such as being solitary and gloomy.From what has been mentioned above,we can easily come to the conclusion that the disadvantages of studying abroad can not be neglected.What’s more,those students who are planning to study abroad should make enough preparations for these problems mentioned above. Only in this way,can they have a fruitful and successful study life abroad.【参考译文】众所周知，随着经济的蓬勃发展和家庭收入的增加，出国留学已经成为越来越受学生欢迎的选择。
2018年12月大学英语四级翻译三套试卷解析(新东方版)
2018年12月大学英语四级翻译三套真题试卷解析（新东方版）Part IV Translation （30 minutes）Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer sheet 2.越来越多的中国人现在的确离不开手机了。
他们中的许多人，包括老年人，都使用手机应用程序保持联系并拓宽朋友圈。
他们也用手机购物，查找信息，因为手机便于携带。
此外，使用手机应用程序通信比传统电话便宜。
然而，这种新趋势导致人们在社交时过度依赖手机，事实上，一些年轻人已经变得十分上瘾，以至于忽略了与家人和朋友面对面的交流。
【译文】More and more Chinese people can't separate from mobile phones. Many of them, including old people, use the mobile apps to stay/keep in touch and broaden their circle of friends. They also use their mobile phones to shop and find information because they are easy to carry(portable). In addition, communication using mobile apps is cheaper than traditional phones. However, this new trend has led people to rely too much on mobile phones when they socialize. In fact, some young people have become so addicted that they neglect face-to-face communication with family and friends.越来越多的中国人现在的确离不开手机了。
2018年12月大学生英语四级真题试卷及详细答案(三套全)
2018年12月大学生英语四级真题试卷及详细答案(三套全)目录2018年12月大学生英语四级真题试题一(完整版) (1)快速对答案 (14)2018年12月大学生英语四级真题试卷一详细答案(精品) (15)2018年12月大学生英语四级真题试题二(完整版) (61)快速对答案 (75)2018年12月大学生英语四级真题试卷二详细答案(精品) (75)2018年12月大学生英语四级真题试题三(完整版) (120)快速对答案 (129)2018年12月大学生英语四级真题试卷三详细答案(精品) (129)2018年12月大学生英语四级真题试题一(完整版)Part I Writing (30 minutes) (请于正式开考后半小时内完成该部分，之后将进行听力考试)Directions:For this part, you are allowed 30 minutes to write an a short easy on the challenges of living in a big city.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 questions will be spoken only once. After you hear questions, 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.注意：此部分试题请在答题卡1上作答。
英语四级真题2018年12月(第三套)试卷及答案解析
2018年12月四级考试真题（第三套）Part I Writing (30 minutes) Directions: For this part, you are allowed 30 minutes to write a short essay on the challenges of starting a career after graduation. You should write at least 120 words but no more than 180 words.Part II Listening Comprehension (25 minutes)Section A．Directions: In th· is section, you will hear three news reports. A t 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 theen mar e corresponding letter on Answer Sheet 1 with best answer from the four choices marked A) , B) , C) and D) . Th k tha single line through the centre.说明：2018年12月四级真题全国共考了两套听力。
本套的听力内容与第二套的完全一样，只是选项的顺序不一样而巳，故在本套中不再重复给出。
Part ill Reading Comprehension (40 minutes) Section ADirections: In this section, there is a passage with ten blanks. Yo u 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 ident加d by a letter: Please mark the corresponding letter for each item on Answer Sheet2 with a single line through the centre. Yo u may not use any of the words in the bank more than once.A few months ago, I was down with a terrible cold which ended in a persistent bad cough. No matter how many different 26 I tried, I still couldn't get rid of the cough. Not only did it 27 my teaching but also my life as a whole. Then one day after class, a student came up to me and 28 traditional Chinese medicine. From her description, Chinese medicine sounded as if it had magic power that worked wonders. I was 29 because I knew so little about it and have never tried it before. Eventually, my cough got so much 30 that I couldn't sleep at night, so I decided to give it a try. The Chinese doctor took my pulse and asked to see my tongue, both of which were new 31 to me because they are both non-existent in Western medicine. Then the doctor gave me a scraping (刮）treatment known as "Gua Sha". I was a little 32 at first because he used a smooth edged tool to scrape the skin on my neck and shoulders. A few minutes later, the 33 strokes started to produce a relieving effect and my body and mind began to 34 deeper into relaxation. I didn't feel any improvement in my condition in the first couple of days, but after a few more regular visits to the doctor, my cough started to 35 . Then, within a matter of weeks, it was completely gone!A)deepen B) e xperiences C)hesitantD)" mconvemence E) l essen F) l icensesG) p ressured H) r ecommended!)remediesJ) s cared K) s ensitive L) s inkM) t emporary N)tremble O)worseSection 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. I dentify the paragraph from which the information i.s 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.Is it really OK to eat food that's fallen on the floor?A) W hen you drop a piece of food on the floor, is it really OK to eat if you pick it up within five seconds? An urban food myth contends that if food spends just a few seconds on the floor, dirt and germs won't have much of a chance to contaminate it. Research in my lab has focused on how food becomes contaminated, and we've done some work on this particular piece of wisdom.B)W怕le the "five-second rule" might not seem like the most pressing issue for food scientists to get to the bottom of, it's still worth investigating food myths like this one because they shape our beliefs about when food is safe to eat.C) S o is five seconds on the floor the critical threshold (门槛）that separates a piece of eatable food from a case of food poisoning? It's a bit more complicated than that. It depends on just how many bacteria can make it from floor to food in a few seconds and just how dirty the floor is.D) W ondering if food is still OK to eat after it's dropped on the floor is a pretty common experience. And it's probably not a new one either. A well-known, but inaccurate, story about Julia Child may have contributed to this food myth. Some viewers of her cooking show, The French Chef, insist they saw Child drop lamb on the floor and pick it up, with the advice that if they were alone in the kitchen, their guests would never know.E) I n fact it was a potato pancake, and it fell on the stovetop, not on the floor. Child put it back in the pan, saying, "But you can always pick it up and if you're alone in the kitchen, who's going to see it?" But the misremembered story persists. It's harder to pin down the origins of the oft-quoted five-second rule, but a 2003 study reported that 70% of women and 56% of men surveyed were familiar with the five-second rule and that women were more likely than men to eat food that had dropped on the floor.F) S o what does science tell us about what a few moments on the floor means for the safety of you food? The earliest research report on the five-second rule is attributed to Jillian Clarke, a high school student participating in aresearch project at the University of Illinois.Clarke and her colleagues introduced bacteria to floor tiles (瓷砖）and then placed cookies on the tiles for varying times. They reported bacteria were transferred from the tiles to the cookies within five seconds, but didn't report the specific amount of bacteria that made it from the tiles to the food.G)But how many bacteria actually transfer in five seconds? In 2007, my lab at Clemson University published a study in the Journal of Applied Microbiology. We wanted to know if the length of time food is in contact with a contaminated surface affected the rate of transfer of bacteria to the food. To find out, we introduced bacteria to squares of tile, carpet or wood.Five minutes after that, we placed either bacon or bread on the surface for 5, 30 or 60 seconds, and then measured the number of bacteria transferred to the food. W e repeated this exact procedure after the bacteria had been on the surface for 2, 4, 8 and 24 hoursH) W e found that the number of bacteria transferred to either kind of food didn't depend much on how long the food was in contact with the contaminated surface—whether for a few seconds or for a whole minute. The overall number of bacteria on the surface mattered more, and this decreased over time after the initial introduction. It looks like what's at issue is less how long your food stays on the floor and much more how contaminated with bacteria that patch of floor happens to be.I) W e also found that the kind of surface made a difference as well. Carpets, for instance, seem to be slightly better places to drop your food than wood or tile. When a carpet was contaminated, less than 1 %of the bacteria were transferred.But when the food was in contact with tile or wood, 48-70% of bacteria were.J) L ast year, a study from Aston University in the UK used nearly identical parameters (参数）to our study and found similar results. They also reported that 87 %of people asked either would eat or had eaten food fallen on the floor. K) Should you eat food fallen on the floor then? From a food safety standpoint, if you have millions or more bacteria on a surface, 0.1 %is still enough to make you sick. Also, certain types of bacteria are extremely harmful, and it takes only a small number to make you sick. For example, 10 bacteria or less of an especially deadly strain of bacteria can cause severe illness and death in people with compromised immune systems. B ut the chance of these bacteria being on most surfaces is very low.L) A nd it's not just dropping food on the floor that can lead to bacterial contamination.Bacteria are carried by various "media", which can include raw food, moist surfaces where bacteria have been left, our hands or skin and from coughing or sneezing (打喷咙）. Hands, foods and utensils (器皿）can carry individual bacteria living in communities contained within a protective film. These microscopic layers of deposits containing bacteria are known as biofilms and they are found on most surfaces and objects. Biofilm communities can harbor bacteria longer and are very difficult to clean. Becteria in these communities also have an enhanced resistance to sanit也ers(清洁剂）and antibiotics compared to bacteria living on their own.M) S o the next time you consider eating fallen food, the odds are in your favor that you can eat it without getting sick. But in the rare chance that there is a micro-organism that can make you sick on the exact spot where the food dropped, you can be fairly sure that the bug is on the food you are about to put in your mouth.N) R esearch or common sense tells us that the best thing to do is keep your hands, utensils and other surfaces clean.36.A research project found bacteria made their way to the food on the floor in five seconds.37. W hether food is contaminated depends much on the number of bacteria that get onto it.38.Food contamination may result from various factors other than food dropping on the floor.39.Males are less likely than females to eat food that may have been contaminated.40. T he author's research centers around how food gets contaminated.41.Keeping everything clean is the best way to stay healthy.42.Chances are you will not fall sick because of eating food picked up from the floor.43.For a long time people have had the experience of deciding whether or not to eat food picked up from the floor.44.Some strains of bacteria are so harmful that a tiny few can have deadly consequences.45.Researchers found how many bacteria got onto the food did not have much to do with how long the food stayed ona contaminated floor.Section CDirections: There are 2 passages in this section. E ach passage is followed by some questions or unfinished statements. Fo r each of them there are four choices marked A), B), C) a nd D). Yo u should decide on the best choice and markthe corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.The latest in cat research reveals that the lovely animal seems to have a basic grasp on both the laws of physics and the ins and outs of cause and effect.According to a newly published study, cats seem to be able to predict the location of hiding prey (猎物）using both their ears and an inborn(天生的）understanding of how the physical world works.In a recent experiment, Japanese researchers taped 30 domestic cats reacting to a container that a te皿member shook. S ome containers rattled (发出响声）；others did not. W hen the con血ner tipped over, sometimes an object fell out and sometimes it didn't.It turns out that the cats were remarkably smart about what would happen when a container was tipped over. When an object did not drop out of the bottom of a rattling container, they looked at it for a longer time than they did when the container behaved as expected."Cats use a causal-logical understanding of noise or sounds to predict the appearance of invisible objects," lead researcher Saho Takagi says in a press release. T he researchers conclude that cats'hunting style may have developed based on their common-sense abilities to infer where prey is, using their hearing.Scientists have explored this idea with other endearing creatures: babies. L ike cats, babies appear to engage in what's called "preferential looking"—looking longer at things that are interesting or unusual than things they perceiveas normal.When babies'expectations are violated in experiments like the ones performed with the cats, they react much like their animal friends.Psychologists have shown that babies apparently expect their world to comply with the laws of physics and cause and effect as early as two months of age.Does the study mean that cats will soon grasp the ins and outs of cause and effect? Maybe. Okay, s o cats may not be the next physics faculty members at America's most important research universities. But by demonstrating their common sense, they've shown that the divide between cats and humans may not be that great after all.46. What do we learn from a newly published study about cats?A) They can be trained to understand the physical world.B) They know what kind of prey might be easier to hunt.C) They have a natural ability to locate animals they hunt.D) They are capable of telling which way their prey flees.47.What may account for the cats'response to the noise from the containers?A) Their inborn sensitivity to noise.C) Their special ability to perceive. B) Their unusual sense of direction.D) Their mastery of cause and effect.48. W hat is characteristic of the way cats hunt, according to the Japanese researchers?A) They depend on their instincts.C) They wait some time before attack.49.In what way do babies behave like cats?A) They focus on what appears odd.C) They do what they prefer to do.50. W hat can we conclude about cats from the passage?A) They have higher intelligence than many other animals.B) They interact with the physical world much like humans.C) They display extraordinarily high intelligence in hunting.D) They can aid physics professors in their research work.Passage TwoQuestions 51 to 55 are based on the following passage. B) They rely mainly on their hearing.D) They use both their ears and eyes.B) They view the world as normal. D) They are curious about everything.Imagine you enter a car with no steering wheel, no brake or accelerator pedals (踏板）. Under a voice-activated command, you say an address. "The fastest route will take us 15.3 minutes. Should I take it?" You say "yes" and you are on your way. T he car responds and starts moving all by itself. All you have to do is sit back and relax.How weird would it be if, one day in the future, everyone had such a car? No crazy driving, no insults, no cutting in; traffic laws would be respected and driving much safer. O n the other hand, imagine the cost savings for local police enforcement and town budgets without all those speeding and parking tickets.A new technology has the potential to change modem society in radical ways.There's no question that self-driving vehicles could be an enormous benefit. T he potential for safer cars means accident statistics would drop: some 94% of road accidents in the U.S. involve human error. Older drivers and visually-or physically-impaired people would gain a new level of freedom. Maintaining safe speeds and being electric, self-driving cars would drastically reduce pollution levels and dependency on non-renewable fuels.Roads would be quieter, people safer.But we must also consider the impact of the new technology on those who now depend on driving for their livelihoods. According to the U.S. Department of Labor, in May 2015 there were 505, 660 registered school bus drivers. T he American Trucking Association lists approximately 3.5 million professional truck drivers in the U.S ..The companies developing self-driving vehicles should be partnering with state and federal authorities to offerretraining for this massive workforce, many of whom will be displaced by the new technology. This is similar to what's happening in the coal and oil industries, a situation that fuels much of the current political discontent in this country.New technologies will, and should, be developed. T his is how society moves forward. However, progress can't be one-sided. It is necessary for the companies and state agencies involved to consider the ethical consequences of these potential changes to build a better future for all.61. W hat would be the impact of the extensive use of driverless cars?A) People would be driving in a more civilized way.B) It would save local governments a lot of money.C) More policemen would be patrolling the streets.D) Traffic regulations would be a thing of the past.52.How would the elderly and the disabled benefit from driverless cars?A) They could enjoy greater mobility.C) They would have no trouble driving.B) They would suffer no road accidents.D) They could go anywhere they want.53.What would be the negative impact of driverless cars?A) The conflict between labor and management would intensify.B) The gap between various sectors of society would be widened.C) Professional drivers would have a hard time adapting to new road conditions.D)Numerous professional drivers would have to find new ways of earning a living.54. W hat is the result of the introduction of new technologies in energy industries?A)Political dissatisfaction.C) Fossil fuel conservation.B) Retraining of employees.D) Business restructuring.55.What does the author suggest businesses and the government do?A)Keep pace with technological developments.B) Make new technologies affordable to everyone.C) Enable everyone to benefit from new technologies.D) Popularize the use of new technologies and devicesPart IV Translation (30 minutes) Directions: For t如s part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.过去几年里，移动支付市场在中国蓬勃发展。
大学英语四六级考试-2018年12月四级第三套阅读参考译文
Section A几个月前，我因为患了重感冒病倒了，结果一直咳嗽得很厉害。
无论我尝试了多少种不同的[26]治疗方法，我仍然咳嗽不止。
这不仅给我的教学[27]带来了不便，也给我的整个生活造成了麻烦。
后来有一天下课后，一个学生过来向我[28]推荐中医。
从她的描述中，中医听起来似乎有种神奇的魔力，能创造奇迹。
我[29]犹豫不决，因为我对中医知之甚少，而且以前从未尝试过。
最后，我咳嗽得愈加[30]厉害，以至于晚上无法入睡，所以我决定试试中医。
中国医生给我把了脉，并要求查看了我的舌头，这些对我来说都是新的[31]体验，因为它们在西医中都是不存在的。
后来医生给我做了刮痧疗法。
起初我有点[32]害怕，因为他用一个边缘光滑的工具刮我脖子和肩膀上的皮肤。
几分钟后，[33]有力道的刮痧开始产生缓解作用，我的身心开始[34]陷入更深层的放松之中。
在最初的几天，我感觉身体状况没有任何好转，但是经过几次定期就诊后，我的咳嗽开始[35]缓解。
后来，在大约几个星期之内，咳嗽完全消失了！Section B掉在地上的食物真的可以吃吗？A)当你把一块食物掉在地上时，如果你在五秒内捡起来，真的就可以吃吗？城市中有一个关于食物的传言认为，如果食物在地板上只停留了几秒钟的时间，灰尘和细菌就不会有太多机会污染它。
[40]我的实验室的研究集中在食物是如何被污染的，我们在这一特殊的学问方面已经做了一些研究工作。
B)虽然“五秒钟规则”或许看上去并非食品科学家最迫切需要弄清楚的问题，但像这种关于食物的传言仍然值得研究，因为它们使我们形成了关于食物何时可以安全食用的看法。
C)那么，在地板上停留5秒钟是把一块可食用的食物和一起食物中毒案例区分开来的关键参数吗？事情比这要更加复杂一点。
[37]这取决于到底有多少细菌能在几秒钟内从地板附着到食物上面，以及地板有多脏。
D)[43]想知道食物掉在地上后是否还能吃是很多人都有过的经历。
而且，这很可能也不是什么新鲜事了。
（完整版）2018年12月英语四级真题及答案
（完整版）2018年12⽉英语四级真题及答案2018年12⽉⼤学英语四级真题及答案第⼀部分写作2018年12⽉⼤学英语四级考试写作真题(第1套)2018年12⽉英语四级真题写作范⽂(店铺的挑战)【作⽂⼀参考范⽂】It is well known that due to the booming economy and increasing family income, studying abroad has become an increasingly popular choice for students. Although studying abroad is often praised by people for its advantages, there are still some disadvantages to be noticed.First of all, to study abroad is expensive. Specifically speaking, those involved have to spend a large amount of money on tuition and living expenses, which is not affordable for everyone. In addition, to study abroad is a great challenge for those students who lack the ability of living independently. If they can not take good care of themselves there, their academic performance will be affected to a large extent. Last but not least, to study abroad may exercise a negative influence on students’ mentality. As we all know, to study abroad equals to stay away from family and friends for a long time, which is likely to produce some psychological problems for those students, such as being solitary and gloomy.From what has been mentioned above, we can easily come to the conclusion that the disadvantages of studying abroad can not be neglected. What’s more, those students who are planning to study abroad should make enough preparations for these problems mentioned above. Only in this way, can they have a fruitful and successful study life abroad.【参考译⽂】众所周知，随着经济的蓬勃发展和家庭收⼊的增加，店铺已经成为越来越受学⽣欢迎的选择。
2018年12月英语四级考试翻译真题及参考答案
2018年12月英语四级考试翻译真题及参考答案第一篇由于通信网络的快速发展，中国智能手机用户数量近年来以惊人速度增长。
这极大地改变了许多人的阅读方式。
他们现在经常在智能手机上看新闻和文章，而不买传统报刊。
大量移动应用程序的开发使人们能用手机读小说和其他形式的文学作品。
因此，纸质书籍的销售受到了影响。
但调查显示，尽管智能手机阅读市场稳步增长，超半数成年人仍喜欢读纸质书。
①由于通信网络的快速发展，中国智能手机用户数量近年来以惊人速度增长。
②这极大地改变了许多人的阅读方式。
③他们现在经常智能手机上看新闻和文章，而不买传统报刊。
④大量移动应用程序的开发使人们能用手机读小说和其他形式的文学作品。
⑤因此，纸质书籍的销售受到了影响。
⑥但调查显示，尽管智能手机阅读市场稳步增长，超半数成年人仍喜欢读纸质书。
精简结构①由于。
的。
发展，。
数量。
增长。
②这。
改变了。
的。
方式。
③他们。
，而不。
④。
使人们能。
⑤因此，。
的。
受到了影响。
⑥但。
，尽管。
，。
仍。
参考译文Due to the rapid development of communication networks，the number of Chinese smartphone users has grown at an alarming rate in recent years。
This has dramatically changed the ways of reading for many people.They now often read news and articles on their smartphones instead of buying traditional newspapers。
The development of a large number of mobile apps enables people to read novels and other forms of literature works on their mobile phones。
英语四级翻译真题练习【2018全】
四级翻译真题练习 - 地铁地铁-2018.6As long as there is confidence, people will never be defeated.只要有信心，人永远不会挫败。
【原文】近年来，中国有越来越多的城市开始建造地铁。
发展地铁有助于减少城市的交通拥堵和空气污染。
地铁具有安全、快捷和舒适的优点，越来越多的人选择地铁作为每天上班或上学的主要交通工具。
如今，在中国乘坐地铁正变得越来越方便。
在有些城市里，乘客只需用卡或手机就可以乘坐地铁。
许多当地老年市民还可以免费乘坐地铁。
近年来，中国有越来越多的城市开始建造地铁。
发展地铁有助于减少城市的交通拥堵和空气污染。
In recent years, a considerable【1】 number of cities in China have begun to build subways【2】. Developing subways can help reduce【3】 traffic congestion【4】 and air pollution【5】 in cities.【1】considerable [kənˈsɪdərəbl] n.<美口>许多,大量adv.<方>相当地，十分地，非常地adj.相当大的;相当多的;著名的;值得尊敬的【2】subway [ˈsʌbweɪ] n.地铁;地下铁道;地铁交通;(穿越马路等的)地下人行道【3】reduce [rɪˈdjuːs] v.减少;缩小;(使)蒸发;减轻体重;节食;使还原词语用例：1.substantially reduce 大幅降低2.dramatically reduce 急剧减少3.reduced circumstances 境况不济4.reduce sb/sth (from sth) to sth/to doing sth使陷入（更坏的）境地;使沦落;使陷入窘境a beautiful building reduced to rubble.已化为残垣断壁的漂亮建筑She was reduced to tears by their criticisms.他们的批评使她流下了眼泪。
2018年12月大学英语四级真题试卷(三)(题后含答案及解析)
2018年12月大学英语四级真题试卷（三）(题后含答案及解析)题型有：1. Writing 2. Listening Comprehension 3. Reading Comprehension 4. TranslationPart I Writing1．For this part, you are allowed 30 minutes to write a short essay on the challenges of studying abroad. You should write at least 120 words but no more than 180 words.正确答案：The Challenges of Studying Abroad With the development of society and economy, the number of overseas students continues to grow. This is good for both the country and the students in terms of promoting mutual understanding and reciprocal learning. Nevertheless, some difficult challenges come along with this trend. The first problem overseas students would encounter is language barrier, which is obviously the major source of stress. They have to spend much energy mastering a foreign language. Even if they’ ve already learned it, it is still challenging to fully understand what foreigners talk about due to the unfamiliarity of cultural background and social conventions. Second, another problem faced by overseas students is security accident. In recent years, news about overseas students being murdered, robbed and kidnapped can often be seen on the Internet. In some developed countries, natives barely hide their prejudice against foreigners and some right-wing extremists or racists even bear grudge against Asian people. Last but not least, students have to undertake all the housework by themselves, while it is usually done by their parents when they are at home. They have to face the challenge of living independently. As for me, I believe studying abroad is beneficial despite its hardships. Because in this way students can broaden their horizons and improve their ability to be independent.解析：这是一篇议论文写作。
2018年12月大学英语四级（CET-4）真题试卷及参考答案第三套
2018年12⽉⼤学英语四级（CET-4）真题试卷及参考答案第三套2018 年 12 ⽉英语四级真题第三套Part I Writing (30minutes) Directions: For this part, you are allowed 30 minutes to write a short essay on The challenges of living in a big city. You should write at least120 words butno more than 180 words.Part II Listening Comprehension (25 minutes)说明：由于2018年12⽉四级考试全国共考了2套听⼒，本套真题听⼒与前2套内容完全⼀样，只是顺序不⼀样，因此在本套真题中不再重复出现。
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 wordbank following the passage. Read the passage through carefully beforemaking your choices. Each choice in the bank is identified by a letter.Please mark the corresponding letter for each item on Answer Sheet 2with a single line through the centre. You may not use any of the words inthe bank more than once.Questions 26 to 35 are based on the following passage.A few months ago, I was down with a terrible cold which ended in a persistent bad cough. No matter how many different 26 I tried, I still couldn’t get rid of the cough. Not only did it 27 my teaching but also my life as a whole. Then one day after class, a student came up to me and 28 traditional Chinese medicine. From her description, Chinese medicine sounded as if it had magic power that worked wonders.I was 29 because I knew so little about it and have never it before. Eventually, my cough got so much 30 that I couldn’t sleep at night, so I decided to give it a try. The Chinese doctor took my pulse and asked to see my tongue, both of which were new 31 to me because they are both non-existent in Western medicine. Then the doctor gave me a scraping（刮）treatment known as “Gua Sha”.I was a little 32 at first because he used a smooth edged tool to scrape the skin on my neck and shoulders. A few minutes later, the 33 strokes started to produce a relieving effect and my body and mind began to 34 deeper into relaxation. I didn’t feel any improvement in my condition in the first couple of days, but after a few more regular visits to the doctor, my cough started to 35 . Then, within a matter of weeks, it was completely gone!A)DeepenB)ExperiencesC)HesitantD)InconvenienceE)LessenF)licensesG)PressuredH)HrecommendedI)RemediesJ)ScaredK)SensitiveL)SinkM)TemporaryN)TrembleO)worseSection 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 theparagraphs. Identify the paragraph from which the information isderived. You may choose a paragraph more than once. Each paragraphis marked with a letter. Answer the questions by marking thecorresponding letter on Answer Sheet 2.Is it really OK to eat food that's fallen on the floorA)When you drop a piece of food on the floor, is it really OK to eat if you pick it up within five seconds? An urban food myth contends that if food spends just a few seconds on the floor, dirt and germs won’t have much of a chance to contaminate it. Researc h in my lab has focused on how food becomes contaminated, and we’ve done some work on this particular piece of wisdom.B)While the “five-second rule” might not seem like the most pressing issue for food scientists to get to the bottom of, it’s still worth in vestigating food myths like this one because they shape our beliefs about when food is safe to eat.C)So is five seconds on the floor the critical threshold（门槛）that separates a piece of eatable food from a case of food poisoning? It’s a bit more complicated than that. It depends on just how many bacteria can make it from floor to food in a few seconds and just how dirty the floor is.D)Wondering if food is still OK to eat after it’s dropped on the floor is a pretty common experience. And it’s probably not a new one either. A well-known, but inaccurate, story about Julia Child may have contributed to this food myth. Some viewers of her cooking show, The French Chef, insist they saw Child drop lamb onthe floor and pick it up, with the advice that if they were alone in the kitchen, their guests would never know.E)In fact it was a potato pancake, and it fell on the stovetop, not on the floor. Child put it back in the pan, saying, “But you can always pick it up and if you’re alone in the kitchen, who’s going to see it?” But the misremembered story persists. It’s harder to pin down the origins of the oft-quoted five-second rule, but a 2003 study reported that 70% of women and 56% of men surveyed were familiar with the five-second rule and that women were more likely than men to eat food that had dropped on the floor.F)So what does science tell us about what a few moments on the floor means for the safety of your food? The earliest research report on the five-second rule is attributed to Jillian Clarke, a high school student participating in a research project at the University of Illinois. Clarke and her colleagues introduced bacteria to floor tiles（瓷砖）and then placed cookies on the tiles for varying times. They reported bacteria were transferred from the tiles to the cook ies within five seconds, but didn’t report the specific amount of bacteria that made it from the tiles to the food.G)But how many bacteria actually transfer in five seconds? In 2007, my lab at Clemson University published a study in the Journal of Applied Microbiology. We wanted to know if the length of time food is in contact with a contaminated surface affected the rate of transfer of bacteria to the food. To find out, we introduced bacteria to squares of tile, carpet or wood. Five minutes after that, we placed either bacon or bread on the surface for 5,30 or 60 seconds, and then measured the number of bacteria transferred to the food. We repeated this exact procedure after the bacteria had been on the surface for 2,4,8 and 24 hours.H)We found that the number of bacteria transferred to either kind of food didn’t depend much on how long the food was in contact with the contaminated surface—whether for a few seconds or for a whole minute. The overall number of bacteria on the surface mattered more, and this decreased over time after the initial introduction. It looks like what’s at issue is less how long your food stays on the floor and much more how contaminated with bacteria that patch of floor happens to be.I)We also found that the kind of surface made a difference as well. Carpets, for instance, seem to be slightly better places to drop your food than wood or tile. When a carpet was contaminated, less than 1% of the bacteria were transferred. But when the food was in contact with tile or wood, 45-70% of bacteria were.J)Last year, a study from Aston University in the UK used nearly identical parameters（参数）to our study and found similar results. They also reported that 87% of people asked either would eat or had eaten food fallen on the floor.K)Should you eat food fallen on the floor then? From a food safety standpoint, if you have millions or more bacteria on a surface, 0.1% is still enough to make you sick. Also, certain types of bacteria are extremely harmful, and it takes only a smallnumber to make you sick. For example, 10 bacteria or less of an especially deadly strain of bacteria can cause severe illness and death in people with compromised immune systems. But the chance of these bacteria being on most surfaces is very low.L)And it’s not just dropping food on the floor that can lead to bacterial contamination. Bacteria are carried by various “media”, which can include raw food, moist surfaces where bacteria have been left, our hands or skin and from coughing or sneezing（打喷嚏）. Hands, foods and utensils（器⽫）can carry individual bacteria living in communities contained within a protective film. These microscopic layers of deposits containing bacteria are known as biofilms and they are found on most surfaces and objects. Biofilm communities can harbor bacteria longer and are very difficult to clean. Becteria in these communities also have an enhanced resistance to sanitizers（清洁剂）and antibiotics compared to bacteria living on their own.M)So the next time you consider eating fallen food, the odds are in your favor that you can eat it without getting sick. But in the rare chance that there is a micro-organism that there is a micro-organism that can make you sick on the exact spot where the food dropped, you can be fairly sure that the bug is on the food you are about to put in your mouth.N)Research or common sense tells us that the best thing to do is keep your hands, utensils and other surfaces clean.36.A research project found bacteria made their way to the food on the floor in five seconds.37.Whether food is contaminated depends much on the number of bacteria that get onto it.38.Food contamination may result from various factors other than food dropping on the floor.39.Males are less likely than females to eat food that may have been contaminated.40.The author’s research ce nters around how food gets contaminated.41.Keeping everything clean is the best way to stay healthy.42.Chances are you will not fall sick because of eating food picked up from the floor.43.For a long time people have had the experience of deciding whether or not to eat food picked up from the floor.44.Some strains of bacteria are so harmful that a tiny few can have deadly consequences.45.Researchers found how many bacteria got onto the food did not have much to do with how long the food stayed on a contaminated floor.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 fourchoices marked A), B), C) and D). You should decide on the best choiceand mark the corresponding letter on Answer Sheet 2 with a single linethrough the centre.Passage OneQuestions 46 and 50 are based on the following passage.The latest in cat research reveals that the lovely animal seems to have a basic grasp on both the laws of physics and the ins and outs of cause and effect.According to a newly published study, cats seem to be able to predict the location of hiding prey（猎物）using both their ears and an inborn（天⽣的）understanding of how the physical world works.In a recent experiment, Japanese researchers taped 30 domestic cats reacting to a container that a team member shook. Some containers rattled（发出响声）；others did not. When the container was tipped over, sometimes an object fell out and sometimes it didn’t.It turns out that the cats were remarkably smart about what would happen when a container was tipped over. When an object did not drop out of the bottom of a rattling container, they looked at it for a longer time than they did when the container behaved as expected.“Cats us e a causal-logical understanding of noise or sounds to predict the appearance of invisible objects,” lead researcher Saho Takagi says in a press release. The researchers conclude that cats’ hunting style may have developed based on their common-sense abilities to infer where prey is, using their hearing.Scientists have explored this idea with other endearing creatures: babies. Like cats, babies appear to engage in what’s called “preferential looking”—looking longer at things that are interesting or unusual than things they perceive as normal.When babies’ expectations are violated in experiments like the ones performed with the cats, they react much like their animal friends. Psychologists have shown that babies apparently expect their world to comply with the laws of physics and cause and effect as early as two months of age.Does the study mean that cats will soon grasp the ins and outs of cause and effect? Maybe. Okay, so cats may not be the next physics faculty members at America’s most important researc h universities. But by demonstrating their common sense, they’ve shown that the divide between cats and humans may not be that great after all.46. What do we learn from a newly published study about cats?A) They can be trained to understand the physical world.B) They know what kind of prey might be easier to hunt.C) They have a natural ability to locate animals they hunt.D) They are capable of telling which way their prey flees.47. What may account for the cats’ response to the noise from the containe rs?A) Their inborn sensitivity to noise.B) Their unusual sense of direction.C) Their special ability to perceive.D) Their mastery of cause and effect.48.What is characteristic of the way cats hunt, according to the Japanese researchers?A)They depend on their instincts.B)They rely mainly on their hearing.C) They wait some time before attack.D) They use both their ears and eyes.49. In what way do babies behave like cats?A) They focus on what appears odd.B) They view the world as normal.C) They do what they prefer to do.D) They are curious about everything.50. What can we conclude about cats from the passage?A) They have higher intelligence than many other animals.B) They interact with the physical world much like humans.C) They display extraordinarily high intelligence in hunting.D) They can aid physics professors in their research work.Passage TwoQuestions 51 to 55 are based on the following passage.Imagine you enter a car with no steering wheel, no brake or accelerator padals（踏板）. Under a voice-activated command, you say an address. “The fastest route will take us 15.3 minutes. Should I take it?” You say “yes” and you are on your way. The car responds and starts moving all by itself. All you have to do is sit back and relax.How weird would it be if, one day in the future, everyone had such a car? No crazy driving, no insults, no cutting in; traffic laws would be respected and driving much safer. On the other hand, imagine the cost savings for local police enforcement and town budgets without all those speeding and parking tickets.A new technology has the potential to change modern society in radical ways. There’s no question that self-driving vehicles could be an enormous benefit. The potential for safer cars means accident statistics would drop: some 94% of road accidents in the U.S. involve human error. Older drivers and visually-or physically-impaired people would gain a new level of freedom. Maintaining safe speeds and being electric, self-driving cars would drastically reduce pollution levels anddependency on non-renewable fuels. Roads would be quieter, people safer.But we must also consider the impact of the new technology on those who now depend on driving for their livelihoods. According to the U.S. Department of Labor, in May 2015 there were 505,560 registered school bus drivers. The American Trucking Association lists approximately 3.5 million professional truck drivers in the U.S.The companies developing self-driving vehicles should be partnering with state and federal authorities to offer retraining for this massive workforce, many of whom will be displaced by the new technology. This is similar to what’s happening in the coal and oil industries, a situation that fuels much of the current political discontent in this country.New technologies will, and should, be developed. This is how society moves forward. However, progress can’t be one-sided. It is necessary for the companies and state agencies involved to consider the ethical consequences of these potential changes to build a better future for all.51.What would be the impact of the extensive use of driverless cars?A)People would be driving in a more civilized way.B)It would save local governments a lot of money.C)More policemen would be patrolling the streets.D)Traffic regulations would be a thing of the past.52.How would the elderly and the disabled benefit from driverless cars?A)They could enjoy greater mobility.B)They would suffer no road accidents.C)They would have no trouble driving.D)They could go anywhere they want.53.What would be the negative impact of driverless cars?A)The conflict between labor and management would intensify.B)The gap between various sectors of society would be widened.C)Professional drivers would have a hard time adapting to new road conditions.D)Numerous professional drivers would have to find new ways of earning a living.54.What is the result of the introduction of new technologies in energy industries?A)Political dissatisfaction.B)Retraining of employees.C)Fossil fuel conservation.D)Business restructuring.55.What does the author suggest businesses and the government do?A)Keep pace with technological developments.B)Make new technologies affordable to everyone.C)Enable everyone to benefit from new technologies.D)Popularize the use of new technologies and devices.Part Ⅳ Translation (30 minutes) Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.过去⼏年⾥，移动⽀付市场在中国蓬勃发展。
2018年12月大学英语四级(CET-4)真题试卷及参考答案第三套
2018 年 12 月英语四级真题第三套Part I Writing (30minutes) Directions: For this part, you are allowed 30 minutes to write a short essay on The challenges of living in a big city. You should write at least120 words butno more than 180 words.Part II Listening Comprehension (25 minutes)说明：由于2018年12月四级考试全国共考了2套听力，本套真题听力与前2套内容完全一样，只是顺序不一样，因此在本套真题中不再重复出现。
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 wordbank following the passage. Read the passage through carefully beforemaking your choices. Each choice in the bank is identified by a letter.Please mark the corresponding letter for each item on Answer Sheet 2with a single line through the centre. You may not use any of the words inthe bank more than once.Questions 26 to 35 are based on the following passage.A few months ago, I was down with a terrible cold which ended in a persistent bad cough. No matter how many different 26 I tried, I still couldn’t get rid of the cough. Not only did it 27 my teaching but also my life as a whole. Then one day after class, a student came up to me and 28 traditional Chinese medicine. From her description, Chinese medicine sounded as if it had magic power that worked wonders.I was 29 because I knew so little about it and have never it before. Eventually, my cough got so much 30 that I couldn’t sleep at night, so I decided to give it a try. The Chinese doctor took my pulse and asked to see my tongue, both of which were new 31 to me because they are both non-existent in Western medicine. Then the doctor gave me a scraping（刮）treatment known as “Gua Sha”.I was a little 32 at first because he used a smooth edged tool to scrape the skin on my neck and shoulders. A few minutes later, the 33 strokes started to produce a relieving effect and my body and mind began to 34 deeper into relaxation. I didn’t feel any improvement in my condition in the first couple of days, but after a few more regular visits to the doctor, my cough started to 35 . Then, within a matter of weeks, it was completely gone!A)DeepenB)ExperiencesC)HesitantD)InconvenienceE)LessenF)licensesG)PressuredH)HrecommendedI)RemediesJ)ScaredK)SensitiveL)SinkM)TemporaryN)TrembleO)worseSection 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 theparagraphs. Identify the paragraph from which the information isderived. You may choose a paragraph more than once. Each paragraphis marked with a letter. Answer the questions by marking thecorresponding letter on Answer Sheet 2.Is it really OK to eat food that's fallen on the floorA)When you drop a piece of food on the floor, is it really OK to eat if you pick it up within five seconds? An urban food myth contends that if food spends just a few seconds on the floor, dirt and germs won’t have much of a chance to contaminate it. Researc h in my lab has focused on how food becomes contaminated, and we’ve done some work on this particular piece of wisdom.B)While the “five-second rule” might not seem like the most pressing issue for food scientists to get to the bottom of, it’s still worth in vestigating food myths like this one because they shape our beliefs about when food is safe to eat.C)So is five seconds on the floor the critical threshold（门槛）that separates a piece of eatable food from a case of food poisoning? It’s a bit more complicated than that. It depends on just how many bacteria can make it from floor to food in a few seconds and just how dirty the floor is.D)Wondering if food is still OK to eat after it’s dropped on the floor is a pretty common experience. And it’s probably not a new one either. A well-known, but inaccurate, story about Julia Child may have contributed to this food myth. Some viewers of her cooking show, The French Chef, insist they saw Child drop lamb onthe floor and pick it up, with the advice that if they were alone in the kitchen, their guests would never know.E)In fact it was a potato pancake, and it fell on the stovetop, not on the floor. Child put it back in the pan, saying, “But you can always pick it up and if you’re alone in the kitchen, who’s going to see it?” But the misremembered story persists. It’s harder to pin down the origins of the oft-quoted five-second rule, but a 2003 study reported that 70% of women and 56% of men surveyed were familiar with the five-second rule and that women were more likely than men to eat food that had dropped on the floor.F)So what does science tell us about what a few moments on the floor means for the safety of your food? The earliest research report on the five-second rule is attributed to Jillian Clarke, a high school student participating in a research project at the University of Illinois. Clarke and her colleagues introduced bacteria to floor tiles（瓷砖）and then placed cookies on the tiles for varying times. They reported bacteria were transferred from the tiles to the cook ies within five seconds, but didn’t report the specific amount of bacteria that made it from the tiles to the food.G)But how many bacteria actually transfer in five seconds? In 2007, my lab at Clemson University published a study in the Journal of Applied Microbiology. We wanted to know if the length of time food is in contact with a contaminated surface affected the rate of transfer of bacteria to the food. To find out, we introduced bacteria to squares of tile, carpet or wood. Five minutes after that, we placed either bacon or bread on the surface for 5,30 or 60 seconds, and then measured the number of bacteria transferred to the food. We repeated this exact procedure after the bacteria had been on the surface for 2,4,8 and 24 hours.H)We found that the number of bacteria transferred to either kind of food didn’t depend much on how long the food was in contact with the contaminated surface—whether for a few seconds or for a whole minute. The overall number of bacteria on the surface mattered more, and this decreased over time after the initial introduction. It looks like what’s at issue is less how long your food stays on the floor and much more how contaminated with bacteria that patch of floor happens to be.I)We also found that the kind of surface made a difference as well. Carpets, for instance, seem to be slightly better places to drop your food than wood or tile. When a carpet was contaminated, less than 1% of the bacteria were transferred. But when the food was in contact with tile or wood, 45-70% of bacteria were.J)Last year, a study from Aston University in the UK used nearly identical parameters（参数）to our study and found similar results. They also reported that 87% of people asked either would eat or had eaten food fallen on the floor.K)Should you eat food fallen on the floor then? From a food safety standpoint, if you have millions or more bacteria on a surface, 0.1% is still enough to make you sick. Also, certain types of bacteria are extremely harmful, and it takes only a smallnumber to make you sick. For example, 10 bacteria or less of an especially deadly strain of bacteria can cause severe illness and death in people with compromised immune systems. But the chance of these bacteria being on most surfaces is very low.L)And it’s not just dropping food on the floor that can lead to bacterial contamination. Bacteria are carried by various “media”, which can include raw food, moist surfaces where bacteria have been left, our hands or skin and from coughing or sneezing（打喷嚏）. Hands, foods and utensils（器皿）can carry individual bacteria living in communities contained within a protective film. These microscopic layers of deposits containing bacteria are known as biofilms and they are found on most surfaces and objects. Biofilm communities can harbor bacteria longer and are very difficult to clean. Becteria in these communities also have an enhanced resistance to sanitizers（清洁剂）and antibiotics compared to bacteria living on their own.M)So the next time you consider eating fallen food, the odds are in your favor that you can eat it without getting sick. But in the rare chance that there is a micro-organism that there is a micro-organism that can make you sick on the exact spot where the food dropped, you can be fairly sure that the bug is on the food you are about to put in your mouth.N)Research or common sense tells us that the best thing to do is keep your hands, utensils and other surfaces clean.36.A research project found bacteria made their way to the food on the floor in five seconds.37.Whether food is contaminated depends much on the number of bacteria that get onto it.38.Food contamination may result from various factors other than food dropping on the floor.39.Males are less likely than females to eat food that may have been contaminated.40.The author’s research ce nters around how food gets contaminated.41.Keeping everything clean is the best way to stay healthy.42.Chances are you will not fall sick because of eating food picked up from the floor.43.For a long time people have had the experience of deciding whether or not to eat food picked up from the floor.44.Some strains of bacteria are so harmful that a tiny few can have deadly consequences.45.Researchers found how many bacteria got onto the food did not have much to do with how long the food stayed on a contaminated floor.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 fourchoices marked A), B), C) and D). You should decide on the best choiceand mark the corresponding letter on Answer Sheet 2 with a single linethrough the centre.Passage OneQuestions 46 and 50 are based on the following passage.The latest in cat research reveals that the lovely animal seems to have a basic grasp on both the laws of physics and the ins and outs of cause and effect.According to a newly published study, cats seem to be able to predict the location of hiding prey（猎物）using both their ears and an inborn（天生的）understanding of how the physical world works.In a recent experiment, Japanese researchers taped 30 domestic cats reacting to a container that a team member shook. Some containers rattled（发出响声）；others did not. When the container was tipped over, sometimes an object fell out and sometimes it didn’t.It turns out that the cats were remarkably smart about what would happen when a container was tipped over. When an object did not drop out of the bottom of a rattling container, they looked at it for a longer time than they did when the container behaved as expected.“Cats us e a causal-logical understanding of noise or sounds to predict the appearance of invisible objects,” lead researcher Saho Takagi says in a press release. The researchers conclude that cats’ hunting style may have developed based on their common-sense abilities to infer where prey is, using their hearing.Scientists have explored this idea with other endearing creatures: babies. Like cats, babies appear to engage in what’s called “preferential looking”—looking longer at things that are interesting or unusual than things they perceive as normal.When babies’ expectations are violated in experiments like the ones performed with the cats, they react much like their animal friends. Psychologists have shown that babies apparently expect their world to comply with the laws of physics and cause and effect as early as two months of age.Does the study mean that cats will soon grasp the ins and outs of cause and effect? Maybe. Okay, so cats may not be the next physics faculty members at America’s most important researc h universities. But by demonstrating their common sense, they’ve shown that the divide between cats and humans may not be that great after all.46. What do we learn from a newly published study about cats?A) They can be trained to understand the physical world.B) They know what kind of prey might be easier to hunt.C) They have a natural ability to locate animals they hunt.D) They are capable of telling which way their prey flees.47. What may account for the cats’ response to the noise from the containe rs?A) Their inborn sensitivity to noise.B) Their unusual sense of direction.C) Their special ability to perceive.D) Their mastery of cause and effect.48.What is characteristic of the way cats hunt, according to the Japanese researchers?A)They depend on their instincts.B)They rely mainly on their hearing.C) They wait some time before attack.D) They use both their ears and eyes.49. In what way do babies behave like cats?A) They focus on what appears odd.B) They view the world as normal.C) They do what they prefer to do.D) They are curious about everything.50. What can we conclude about cats from the passage?A) They have higher intelligence than many other animals.B) They interact with the physical world much like humans.C) They display extraordinarily high intelligence in hunting.D) They can aid physics professors in their research work.Passage TwoQuestions 51 to 55 are based on the following passage.Imagine you enter a car with no steering wheel, no brake or accelerator padals（踏板）. Under a voice-activated command, you say an address. “The fastest route will take us 15.3 minutes. Should I take it?” You say “yes” and you are on your way. The car responds and starts moving all by itself. All you have to do is sit back and relax.How weird would it be if, one day in the future, everyone had such a car? No crazy driving, no insults, no cutting in; traffic laws would be respected and driving much safer. On the other hand, imagine the cost savings for local police enforcement and town budgets without all those speeding and parking tickets.A new technology has the potential to change modern society in radical ways. There’s no question that self-driving vehicles could be an enormous benefit. The potential for safer cars means accident statistics would drop: some 94% of road accidents in the U.S. involve human error. Older drivers and visually-or physically-impaired people would gain a new level of freedom. Maintaining safe speeds and being electric, self-driving cars would drastically reduce pollution levels anddependency on non-renewable fuels. Roads would be quieter, people safer.But we must also consider the impact of the new technology on those who now depend on driving for their livelihoods. According to the U.S. Department of Labor, in May 2015 there were 505,560 registered school bus drivers. The American Trucking Association lists approximately 3.5 million professional truck drivers in the U.S.The companies developing self-driving vehicles should be partnering with state and federal authorities to offer retraining for this massive workforce, many of whom will be displaced by the new technology. This is similar to what’s happening in the coal and oil industries, a situation that fuels much of the current political discontent in this country.New technologies will, and should, be developed. This is how society moves forward. However, progress can’t be one-sided. It is necessary for the companies and state agencies involved to consider the ethical consequences of these potential changes to build a better future for all.51.What would be the impact of the extensive use of driverless cars?A)People would be driving in a more civilized way.B)It would save local governments a lot of money.C)More policemen would be patrolling the streets.D)Traffic regulations would be a thing of the past.52.How would the elderly and the disabled benefit from driverless cars?A)They could enjoy greater mobility.B)They would suffer no road accidents.C)They would have no trouble driving.D)They could go anywhere they want.53.What would be the negative impact of driverless cars?A)The conflict between labor and management would intensify.B)The gap between various sectors of society would be widened.C)Professional drivers would have a hard time adapting to new road conditions.D)Numerous professional drivers would have to find new ways of earning a living.54.What is the result of the introduction of new technologies in energy industries?A)Political dissatisfaction.B)Retraining of employees.C)Fossil fuel conservation.D)Business restructuring.55.What does the author suggest businesses and the government do?A)Keep pace with technological developments.B)Make new technologies affordable to everyone.C)Enable everyone to benefit from new technologies.D)Popularize the use of new technologies and devices.Part Ⅳ Translation (30 minutes) Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.过去几年里，移动支付市场在中国蓬勃发展。
2018年12月英语四级真题答案卷三试题与答案(部分)
2018年12月英语四级真题答案卷三试题与答案（部分）写作大城市的挑战Direction：the challenge of starting a career after graduationPersonally speaking, influenced by the inevitable result of social advancement, the phenomenon of starting a career after graduation has been a prevalent tendency in our society. And it also has been a hot topic among the individuals. As for me, I deem that starting a career after graduation has numerous challenges .When it comes to the challenges when we start a career after gradution, the driving challenges can be summarized as below. For one thing , we have to solve the problem of money,because it is the base of a successful career. For another, the firece competition which we confront with may be a kind of difficulty for every student.I think starting a career after graduation has numerous challenges to be solved, and positive attitude and careful consideration are essential for students.2018年12月英语四级真题答案卷三阅读选词填空部分：26.I warning27.B convenience28.F particularly29.L surveyed30.C effectively31.E intimate32.J unfriendly33.K specific34.G primary35.A avoid匹配题部分：How a poor abandoned parisian boy became a top chef36-40：GMFCE41-45：DAHKB36.Careme was among the first chefs who stressed both the appearance and flavor of dishes37.Careme wanted to show to later generations that French chefs of his time were most world38.Careme benefited greatly from sevring a French diplomat and his connections39.Careme learned his trade from a famous dessert chef in Paris40.Careme's creative works were exhibited in the shop windows by his master41.Careme's knowledge of art and architecture helped him create extraordinary desserts out of ordinary ingredient42.Many people in paris were eager to have a look at the latest sweet food made by Care43.Careme became extremely wealthy by cooking for rich and socially ambitious families44.Careme's writing dealt with fundamental cooking principles in a systematic way45.Careme's contribution to French cooking was revolutionary仔细阅读部分：第1篇：家庭摄像头带来的道德问题46.For what reason mat your friends feel reluctant to visit your home?答：A,The security camera installed may intrude into their privacy47.What does lizzie post say is new territory?答：D,Etiquette around home security cameras48.What is lizzie post mainly discussing with regard to the use of home security cameras?答：C,Likes and dislikes of individuals49.What is a host's responsibility regarding security cameras,according to lizzie post? 答：A,Making their guests feel at ease50.In what way can the home security camera benefit visitors to your home?答：B,It can prove their innocence第二篇：PepsiCo公司进行新的产品计划51.Why is PepsiCo making a policy change?答：C,To satisfy the growing needs for healthy foods52.What does PepsiCo think it will have to do in the future?答：D,Keep on improving its products53.Why does PepsiCo plan to,alter its products ,according to lndra Nooyi?答：A,To ensure the company's future development54.What does indra Nooyi say about the obesity epidemic?答：C,It is attributable to people's changed lifestyles55.What has PepsiCo been doing to achieve its objective?答：B,Increasing its research funding2018年12月英语四级真题答案卷三翻译【手机改变生活方式】越来越多的中国人现在离不开手机了。
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2018年12月大学英语四级真题翻译(第1套)
Part ⅣTranslation (30 minutes)
Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.
由于通信网络的快速发展，中国智能手机用户数量近年来以惊人度增长。
这极大地改变了许多人的阅读方式。
他们现在经常智能手机上看新闻和文章，而不买传统报刊。
大量移动应用程序的开发使人们能用手机读小说和其他形式的文学作品。
因此，纸质书籍的销售受到了影响。
但调查显示，尽管能手机阅读市场稳步增长，超半数成年人仍喜欢读纸质书。
2018年12月大学英语四级真题翻译(第2套)
Part ⅣTranslation (30 minutes)
Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.
过去几年里，移动支付市场在中国蓬勃发展，随着移动互联网得出现，手机购物逐渐成为一种趋势。
18到30岁的年轻人构成了移动支付市场的最大群体。
由于现在用手机付款极容易，许多消费者在购物时宁愿用手机付款，而不愿用现金或信用卡。
为了鼓励人们多消费，许多商店给使用移动支付的顾客打折。
专家预测，中国移动支付市场未来仍有很大发展潜力。
2018年12月大学英语四级真题翻译(第3套)
Part ⅣTranslation (30 minutes)
Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.
越来越多的中国人现在的确离不开手机了。
他们中的许多人，包括老年人，都使用手机应用程序保持联系并拓宽朋友圈。
他们也用手机购物，查找信息，因为手机便于携带。
此外，使用手机应用程序通信比传统电话便宜。
然而，这种新趋势导致人们在社交时过度依赖手机。
事实上，一些年轻人已经变得十分上瘾，以至于忽略了家人和朋友面对的交能。