2019年12月四级参考答案完整版

2019年12月四级参考答案完整版2019年12月四级参考答案完整版考证菌2019-12-14 23:03:46via星火英语四六级试卷采用多题多卷形式，大家核对答案时，找准具体选项内容，忽略套数。

写作（共三套，忽略套数，只核对内容）第一套Dear Tom,On hearing that you are planning to teach English in China and ask me to recommend a city, I'd like to recommend our capital city, Beijing, an international metropolis.The reasons why I recommend Beijing can be listed as follows. First of all, there are a lot ofEnglish-speaking foreigners in Beijing, which helps you adapt to life here very quickly. Furthermore, as the capital of several dynasties, Beijing has a profound cultural background, so you can better experience the extensive and profound traditional Chinese culture. Most importantly, parents in Beijing, an international metropolis with many multinational companies, attach great importance to their children's English learning and many people who work in multinational companies also need to learn English.I truly hope that you can come to Beijing to start your teaching life and I'm looking forward to your arrival. If you have any question about the city, please feel free to contact me for further information.Yours sincerely,Li Ming第二套Dear Tom,On hearing that you are planning to learn Chinese in China and ask me to recommend a place, I'd like to recommend our capital city, Beijing, an international metropolis.I recommend Beijing to you because of the following reasons. First of all, there are a lot ofEnglish-speaking foreigners in Beijing, which helps you adapt to life here very quickly. Furthermore, as the capital of several dynasties, Beijing has a profound cultural background, so you can better experience the extensive and profound traditional Chinese culture. Last but not least, with many people understand and master both Chinese and English, Beijing has a good bilingual atmosphere. It is good for you to improve your Chinese. You could communicate with local people in Chinese as much as possible because practice makes perfect.I truly hope that you can come to Beijing and learn Chinese here. I'm looking forward to your arrival. If you have any question about the city, please feel free to contact me for further information.Yours sincerely,-Dear Tom,I was so delighted to receive the letter from you. On hearing that you are planning to study in China, I decide to write you a letter to recommend a university. My recommendation is Xiamen University, which is one of the most outstanding universities in China.The reasons why I recommend this university can be listed asfollows. First of all, Xiamen University is located in a coastal city, Xiamen, which has beautiful and attractive seaside scenery. If you study here, you can have a walk and breathe the fresh air at the end of the day's study. How comfortable and enjoyable! More importantly, Xiamen University has a high reputation for its academic contributions to China and the world.I truly hope that you can come to Xiamen University to start your college life and I am looking forward to your arrival. If you are interested in my recommendation and want to know more detail about the university, please feel free to contact me.Yours sincerelyLI Ming听力（共两套，第三套仅顺序改变，忽略套数，只核对内容）第一套Section A: 1-71. D) A wandering cow was captured by the police.2. D) It was sent to the animal control department.3. B) It is going to be expanded4. C) Some ancient wall paintings from Australia5. A) Pick up trash.6. A) They are especially intelligent.7. B) Children may be tempted to drop litter.Section B: 8-158. C) It will cover different areas of science.9. C) It will be more entertaining.10. A) People interested in science.11. B) Provide financial support.12. D) Dissatisfied13. A) He is too concerned with being perfect。

2019年12月四级参考答案完整版考证菌2019-12-14 23:03:46via星火英语四六级试卷采用多题多卷形式，大家核对答案时，找准具体选项内容，忽略套数。

写作（共三套，忽略套数，只核对内容）第一套Dear Tom,On hearing that you are planning to teach English in China and ask me to recommend a city, I'd like to recommend our capital city, Beijing, an international metropolis.The reasons why I recommend Beijing can be listed as follows. First of all, there are a lot of English-speaking foreigners in Beijing, which helps you adapt to life here very quickly. Furthermore, as the capital of several dynasties, Beijing has a profound cultural background, so you can better experience the extensive and profound traditional Chinese culture. Most importantly, parents in Beijing, an international metropolis with many multinational companies, attach great importance to their children's English learning and many people who work in multinational companies also need to learn English.I truly hope that you can come to Beijing to start your teaching life and I'm looking forward to your arrival. If you have any question about the city, please feel free to contact me for further information.Yours sincerely,Li Ming第二套Dear Tom,On hearing that you are planning to learn Chinese in China and ask me to recommend a place, I'd like to recommend our capital city, Beijing, an international metropolis.I recommend Beijing to you because of the following reasons. First of all, there are a lot of English-speaking foreigners in Beijing, which helps you adapt to life here very quickly. Furthermore, as the capital of several dynasties, Beijing has a profound cultural background, so you can better experience the extensive and profound traditional Chinese culture. Last but not least, with many people understand and master both Chinese and English, Beijing has a good bilingual atmosphere. It is good for you to improve your Chinese. You could communicate with local people in Chinese as much as possible because practice makes perfect.I truly hope that you can come to Beijing and learn Chinese here. I'm looking forward to your arrival. If you have any question about the city, please feel free to contact me for further information. Yours sincerely,Li Ming第三套Dear Tom,I was so delighted to receive the letter from you. On hearing that you are planning to study in China, I decide to write you a letter to recommend a university. My recommendation is Xiamen University, which is one of the most outstanding universities in China.The reasons why I recommend this university can be listed as follows. First of all, Xiamen University is located in a coastal city, Xiamen, which has beautiful and attractive seaside scenery. If you study here, you can have a walk and breathe the fresh air at the end of the day's study. How comfortable and enjoyable! More importantly, Xiamen University has a high reputation for its academic contributions to China and the world.I truly hope that you can come to Xiamen University to start your college life and I am looking forward to your arrival. If you are interested in my recommendation and want to know more detail about the university, please feel free to contact me.Yours sincerelyLI Ming听力（共两套，第三套仅顺序改变，忽略套数，只核对内容）第一套Section A: 1-71. D) A wandering cow was captured by the police.2. D) It was sent to the animal control department.3. B) It is going to be expanded4. C) Some ancient wall paintings from Australia5. A) Pick up trash.6. A) They are especially intelligent.7. B) Children may be tempted to drop litter.Section B: 8-158. C) It will cover different areas of science.9. C) It will be more entertaining.10. A) People interested in science.11. B) Provide financial support.12. D) Dissatisfied13. A) He is too concerned with being perfect。

2019年12月大学英语四级考试真题及参考答案完整版2019年12月大学英语四级考试真题及参考答案完整版(第一套) Part I Writing (25minutes) Directions: For this part, you are allowed 30 minutes to write a letter to a foreign friend who wants to study. Please recommend a university to him. You should write at least 120 words but no more than 180 words.【参考范文】Dear，I am delighted to hear that you are going to study in a Chinese university. Since you haveasked for my advice about choosing which university I will try to give you some useful suggestions hereIt is well known that Peking University is a great place to lean. There are several factorsaccounting for this choice and the following are the most typical ones. First and foremost,Peking University is one of the top universities in China and the birthplace of many great minds. Therefore, it can provide high-quality teaching resources, which is essential for a foreign learner. In addition, Beijing is the capital of China and there are various historic buildings. They provide foreign students to know Chinese culture and historyI hope you will find these suggestions helpful and wish you all the best！Yours，Li Ming 【参考译文】亲爱的露丝:得知你要来中国的大学学习,我很高兴。

2019年12月大学英语四级考试真题附答案大学英语四级考试2019年12月真题(第一套)阅读理解一、When travelling overseas, do you buy water in plastic bottles or take your chances with tap water? Imagine you are wandering about on a Thai island or_ 26 the ruins of Angkor. It's hot so you grab a bottle of water from a local vendor. It's the safe thing to do, right? The bottle is 27, and the label says “pure water". But maybe what's inside is not so _ 28 Would you still be drinking it if you knew that more than 90 percent of all bottled water sold around the world 29 micro plastics?That's the conclusion of a recently 30 _ study, which analyzed 259 bottles from 11 brands sold in nine countries, 31 _ an average of 325 plastic particles per liter of water. These micro plastics included _ 32 commonly known as PET and widely used in the manufacture of clothing and food and 33 containers. The study was conducted at the State University of New York on behalf of Orb Media, a journalism organization. About a million bottles are bought every minute, not only by thirsty tourists but also by many of the 2.1 billion worldwide who live with unsafe drinking water.Confronted with this_ 34 _ several bottled-water manufacturers including Nestle and Coca-Cola undertook their own studies using the same methodology. These studies showed that their water did contain micro plastics, but far less than the Orb study suggested. Regardless, the World Health Organization has launched a review into the _ 35 _ health risks of drinking water from plastic bottles.A) adequate D) natural B) admiring J) potential C) contains K) released D) defendingL) revealingE) evidence 11M) sealedF) instantN) solvesG) liquidH) modified二、The quiet heroism of mail deliveryA) On Wednesday, a polar wind brought bitter cold to the Midwest. Overnight, Chicago reached a low of 21 degrees Fahrenheit below zero, making it slightly colder than Antarctica (南极洲)，Alaska, and the North Pole. Wind chills were 64 degrees below zero in Park Rapids, Minnesota, and 45 degrees below zero in Buffalo, North Dakota, according to the National Weather Service. Schools, restaurants, and businesses closed, and more than 1,000 flights were canceled.B)Even the United States Postal Service (USPS) suspended mail delivery. “Due to this arctic outbreak and concerns for the safety of USPS employees," USPS announced Wednesday morn ing,“the Postal Service is suspending delivery Jan. 30 in some 3-digit ZIP Code locations." Twelve regions were listed as unsafe on Wednesday; on Thursday, eight remained.C) As global surface temperatures increase, so does the likelihood of extreme weather. In 2018 alone, wildfires, volcanic eruptions, hurricanes, mudslides, and other natural disasters cost at least $49 billion in the United States. As my colleague Vann Newkirk reported, Puerto Rico is still confronting economic and structural destruction and resource scarcity from 2017'sHurricane Maria. Natural disasters can wreck a community's infrastructure, disrupting systems for months or years. Some services, however, remind us that life will eventually return, in some form, to normal.D) Days after the deadly 2017 wildfires in Santa Rosa, California, a drone (无人机) caught footage (连续镜头)of a USPS worker, Trevor Smith, driving through burned homes in that familiar white van, collecting mail in an affected area. The video is striking: The operation is familiar, but the scene looks like the end of the world. According to Rae Ann Haight, the program manager for the national-preparedness office at USPS, Smith was fulfilling a request made by some of the home owners to pick up any mail that was left untouched. For Smith, this was just another day on the job. “I followed my route like I normally do," Smith told a reporter. "“As I came across a box that was up but with no house, I checked, and there was mail- outgoing mail--in it. And so we picked those up and c arried on.”E)USPS has sophisticated emergency plans for natural disasters. Across the country, 285 emergency-management teams are devoted to crisis control. These teams are trained annually using a framework known as the three Ps: people, property, product. After mail service stops due to weather, the agency's top priority is ensuring that employees are safe. Then it evaluates the health of infrastructure, such as the roads that mail carriers drive on. Finally, it decides when and how to re-open operations. If the destruction is extreme, mail addressed to the area will get sent elsewhere. In response to Hurricane Katrina in 2005, USPS redirected incoming New Orleans mail to existing mail facilities in Houston. Mail that was already processed in New Orleans facilities was moved to an upper floor so it would beprotected from water damage.F) As soon as it's safe enough to be outside, couriers (邮递员) start distributing accumulated mail on the sill-accessible routes. USPS urges those without standing addresses to file change-of-address forms with their new location. After Hurricane Katrina hit in 2005, mail facilities were set up in dozens of locations across the country in the two weeks that USPS was unable to provide street delivery.G) Every day, USPS processes, on average, 493.4 million pieces of mail--anything from postcards to Social Security checks to medicine. Spokespeople from both USPS and UPS told me all mail is important. But some mail can be extremely sensitive and timely. According to data released in January 2017, 56 percent of bills are paid online, which means that just under half of payments sill rely on delivery services to be completed.H) It can be hard to identify which parcels are carrying crucial items such as Social Security checks, but USPS and UPS try their best to prioritize sensitive material. They will coordinate with the Social Security Administration to make sure that Social Security checks reach the right people in a timely fashion. After Hurricane Florence and Hurricane Michael last fall, USPS worked with state and local election boards to make sure that absentee ballots were available and received on time.I) Mail companies are logistics (物流) companies, which puts them in a special position to help when disaster 5h strikes. In a 2011 USPS case study, the agency emphasized its massive infrastructure as a“unique federal asset" to be called upon in a disaster or terrorist attack.“I think we're unique as a federal agency," USPS official Mike Swig art told me,“because we're in literally every community in this county... Were obligated todeliver to that point on a daily basis."J) Private courier companies, which have more dollars to spend, use their expertise in logistics to help revitalize damaged areas after a disaster. For more than a decade, FedEx has supported the American Red Cross in its effort to get emergency supplies to areas affected by disasters, both domestically and internationally. In2012, the company distributed more than 1,200 Med Packs to Medical Reserve Corps groups in California. They also donated space for 3.1 million pounds of charitable shipping globally. Last October, the company pledged $1 million in cash and transportation support for Hurricanes Florence and Michael. UPS's charitable arm, the UPS Foundation, uses the company's logistics to help disaster struck areas rebuild. “We realize that as a company with people, trucks, warehouses, we needed to play a larger role," said Eduardo Martinez, the president of the UPS Foundation. The company employs its trucks and planes to deliver food, medicine, and water. The day before I spoke to Martinez in November, he had been touring the damage from Hurricane Michael in Florida with the American Red Cross. “We have an obligation to make sure our communities are thriving," he said.K) Rebuilding can take a long time, and even then, impressions of the disaster may still remain. Returning to a normal life can be difficult, but some small routines--mail delivery being one of them--may help residents remember that their communities are still their communities. “When they see that carrier back out on the street, Swig art said,“that's the first sign to them that life is starting to return to normal."36. The United States Postal Service has a system to ensure its employees' safety.37. One official says USPS is unique in that it has more direct reach to communities compared with other federal agencies.38. Natural disasters can have a long-lasting impact on community life.39. Mail delivery service is still responsible for the completion of almost half of payments.40. The sight of a mailman on the street is a reassuring sign of life becoming normal again.41. After Hurricane Katrina interrupted routine delivery, temporary mail service points were set up.42. Postal service in some regions in the U.S. was suspended due to extreme cold weather.43. Private postal companies also support disaster relief efforts by distributing urgent supplies.44. A dedicated USPS employee was on the job carrying out duties in spite of extreme conditions.45. Postal services work hard to identify items that require priority treatment.三、Professor Ashok Goal of Georgia Tech developed an artificially intelligent teaching assistant to help handle the enormous number of student questions in the online class, Knowledge Based Artificial Intelligence. This online course is a core requirement of Georgia Tech's online Master of Science in Computer Science program. Professor Goal already had eight teaching assistants, but that wasn't enough to deal with the overwhelming number of daily questions from students.Many students drop out of online courses because of the lack of teaching support. When students feel isolated or confused and reach out with questions that go unanswered, theirmotivation to continue begins to fade. Professor Goal decided to do something to remedy this situation and his solution was to create a virtual assistant named Jill Watson, which is based on the IBM Watson platform.Goal and his team developed several versions of Jill Watson before releasing her to the online forums. At first, the virtual assistant wasn't too great. But Goal and his team sourced the online discussion forum to find all the 40,000 questions that had ever been asked since the class was launched. Then they began to feed Jill with the questions and answers. After some adjustment and sufficient time, Jill was able to answer the students' questions correctly 97% of the time. The virtual assistant became so advanced and realistic that the students didn't know she was a computer. The students, who were studying artificial intelligence, were interacting with the virtual assistant and couldn't tell it apart from a real human being. Goal didn't inform them about Jill's true identity until April 26. The students were actually very positive about the experience.The goal of Professor Goal’s virtual assistant next year is to take over answering 40% of all the questionsposed by students on the online forum. The name Jill Watson will, of course, change to something else next semester, Professor Goal has a much rosier outlook on the future of artificial intelligence than, say, Elon Musk, Stephen Hawking, Bill Gates or Steve Wozniak.46. What do we learn about Knowledge-Based Artificial Intelligence?A) It is a robot that can answer students' questions.C) It is a high-tech device that revolutionizes teaching.B) It is a course designed for students to learn online.D) It is a computer program that aids student learning.47. What problem did Professor Goal meet with?A) His students were unsatisfied with the assistants.C) Students' questions were too many to handle.B) His course was too difficult for the students.D) Too many students dropped out of his course.48. What do we learn about Jill Watson?A) She turned out to be a great success.C) She was unwelcome to students at first.B) She got along pretty well with students.D) She was released online as an experiment.49. How did the students feel about Jill Watson?A) They thought she was a bit too artificial.C) They could not but admire her knowledge.B) They found her not as capable as expected.D) They could not tell her from a real person.50. What does Professor Goal plan to do next with Jill Watson?A) Launch different versions of her online.C) Assign her to answer more of students' questions.B) Feed her with new questions and answers.D) Encourage students to interact with her more freely.四、Thinking small, being engaging, and having a sense of humor don't hurt. Those are a few of the traits of successful science crowd funding efforts that emerge from a recent study that examined nearly 400 campaigns. But having a large network and some promotional skills may be more crucial.Crowd funding, raising money for a project through online appeals, has taken off in recent years for everything from making movies to producing water-saving gadgets. Scientists have triedto tap Internet donors, too, with mixed success. Some raised more than twice their goals, but others have fallen short of reaching even modest targets.To determine what separates science crowd funding triumphs from failures, a team led by science communications scholar Mike Schafer of the University of Zurich examined the content of the web pages for 371 recent campaigns.Four traits stood out for those that achieved their goals, the researchers report in Public Understanding of Science. For one, they use a crowd funding platform that specializes in raising money for science, and not just any kind of project. Although sites like Kick starter take all comers, platforms such as /doc/e414140383.html, and Pediatrics. org only present scientific projects. For another, they present the project with a funny video because good visuals and a sense of humor improved success. Most of them engage with potential donors, since projects that answered questions from interested donors fared better. And they target a small amount of money. The projects included in the study raised $4000 on average, with 30% receiving less than $1000. The more money a project sought, the lower the chance it reached its goal, the researchers found.Other factors may also significantly influence a project's success, most notably, the size of a scientist's personal and professional networks, and how much a researcher promotes a project on their own. Those two factors are by far more critical than the content on the page. Crowd funding can be part of researchers' efforts to reach the public, and people give because“they feel a connection to the person" who is doing the fund raising--not necessarily to the science.51. What do we learn about the scientists trying to raisemoney online for their projects?A) They did not raise much due to modest targets.C) Not all of them achieved their anticipated goals.B) They made use of mixed fund raising strategies.D) Most of them put movies online for the purpose.52. What is the purpose of Mike Schafer's research of recent crowd funding campaigns?A) To create attractive content for science websites.C) To help scientists to launch innovative projects.B) To identify reasons for their different outcomes.D) To separate science projects from general ones.53. What trait contributes to the success of a crowd funding campaign?A) The potential benefit to future generations.C) Its originality in addressing financial issues.B) Its interaction with prospective donors.D) The value of the proposed project.54. What did the researchers think of the financial targets of crowd funding projects?A) They should be small to be successful.C) They should be assessed with great care.B) They should be based on actual needs.D) They should be ambitious to gain notice.55. What motivates people to donate in a crowd funding campaign?A) The ease of access to the content of the web page.B) Their desire to contribute to the cause of science.C) The significance and influence of the project itself.D) Their feeling of connection to the scientists themselves.汉翻英中国家庭十分重视孩子的教育。

2019年12月四级真题及答案一、听力（听力原文见文末哟~）温馨提示：听力答案直接看内容哦~不用在意前面的ABCD选项！News 11. A，A wandering cow was captured by the police.2. D，It was sent to the animal control department. News 23. C，It is going to be expanded.4. B，Some ancient wall paintings from Australia. News 35. C，Pick up trash.6. B，They are especially intelligent.7. D，Children may be tempted to drop litter.Conversation18. A，It will cover different areas of science.9. B，It will be more entertaining.10. D，People interested in science.11. A，Provide financial support. Conversation212. D，Dissatisfied13. B，He is too concerned with being perfect.14. D，Miserable15. A，Compare his present with his past only.Passage116. C，They are more likely to become engineers.17. C，Respond more positively to boys' comments.18. D，Offer personalized teaching materials.Passage219. C，It does not rain as much as people think.20. A，The rain is usually very light.21. B，It has mild weather both in summer and in winter.Passage322. D，It comes from straining one's muscles in an uncommon way.23. D，Blood flow and body heat increase in the affected area.24. A，About two days.25. B，Have a hot shower.二、阅读1. 第一套选词填空26-30 BMICK31-35 LOGEJ26. B admiring27. M sealed28. I natural29. C contains30. K released31. L revealing32. O substance33. G liquid34. E evidence35. J potential 段落匹配36-40 EICGK41-45 FBJDH36.E The United States Postal Service has a system to ensure...37.I One official says USPS is unique in that it has more direct...38.C Natural disasters can have a long-lasting impact on...39.G Mail delivery service is still responsible for the completion...40.K The sight of a mailman on the street is a reassuring sign of life...41.F After Hurricane Katrina interrupted routine delivery，temporary...42.B Postal service in some regions in the U.S. was suspended due to...43.J Private postal companies also support disaster relief efforts by...44.D A dedicated USPS employee was on the job carrying out duties...45.H Postal services work hard to identify items that require priority...仔细阅读46-50 DCADC51-55 CBBAD46.D It is a computer program that aids student learning.47.C Students' questions were too many to handle.48.A She turned out to be a great success.49.D They could not tell her from a real person.50.C Assign her to answer more of students' questions.51.C Not all of them achieved their anticipated goals.52.B To identify reasons for their different outcomes.53.B Its interaction with prospective donors.54.A They should be small to be successful.55.D Their feeling of connection to the scientists themselves..2. 第二套选词填空26-30 BLKAO31-35 CEGDH26. B conclusion27. L spread28. K slim2. A accurate30. O vulnerable31. C directly32. E evalte33. G flights34. D either35. H largely段落匹配36-40 FIDGB41-45 EHAJC36.F Songdo's popularity lies more in its quality of life than business...37.I The man who conceived Songdo feels disappointed because it...38.D A scene in a popular South Korean music video was shot in...39.G Songdo still lacks the financial stimulus for businesses to...40.B Airplanes will increasingly become the chief means of transportation...41.E Songdo has ended up different from the city it was supposed...42.H Some of the people who work in Songdo complain about boredom...43.A A business professor says that a future city should have easy access...44.J According to an urban design professor, it is difficult for city designers to foresee...45.C Park Yeon Soo，who envisioned Songdo, feels a parental connection ...仔细阅读46-50 BCDBA51-55 DABAC46.B It may encourage other US cities to follow suit.47.C Take legal action against it.48. D It criticized the measure through advertising.49. B Help people to fix certain long-time health issues.50. A They are becoming rather sensitive issues.51.D The use of microwaves emits more CO2 than people think52.A They are becoming more affordable53.B Improving microwave users' habits54.A There are far more emissions from cars than from microwaves55.C It plays a positive role in environment protection.3. 第三套选词填空26-30 OADCG31-35 HKNEF26.O unpleasant27.A adjusted28.D experience29.C equivalent30.G individuals31.H originally32.K reduce33.N thrive34.E filters35.F frequently段落匹配36-40 EIBGD41-45 JAFCH36.E According to one professor, obesity is related to a lack...37.I Some scientists claim that people should consume right...38.B Opinions differ as to whether breakfast is the meal important...39. G It has been found that not eating breakfast is related to ...40. D Researchers found it was a change in eating habits rather ...41. J To keep oneself healthy, eating breakfast is more important...42.A It is widely considered wrong not to eat breakfast.43. F More research is needed to prove that breakfast is related to ...44.C People who priorities breakfasts tend to have lower calorie but higher...45.H Many studies reveal that eating breakfast helps people concentrate.仔细阅读46-50 CDACB51-55 DBDCB46.C They can't connect professors and students as textbooks do.47.D Falling sales.48.A Reform its structures.49.C Answer questions using their personal experience.50. B They can learn in an interactive way51.D It gets energy from both food and sunlight.52.B The mechanism by which it conserves energy.53.D They can produce chlorophyll on their own.54.C They don‘t usually function inside animal cells.55.B They can survive for months without eating.三、写作1. 第一套Directions：For this part, you are allowed 30 minutes to write a letter to a foreign friend who wants to teach English in China. Please recommend a city to him. You should write at least 120 words but no more than 180 words.。

2019年12月大学英语四级考试真题及参考答案完整版(第一套)Part I Writing (25minutes) Directions: For this part, you are allowed 30 minutes to write a letter to a foreign friend whowants to study. Please recommend a university to him. You should write at least 120 words butno more than 180 words.【参考范文】Dear，I am delighted to hear that you are going to study in a Chinese university. Since you haveasked for my advice about choosing which university I will try to give you some usefulsuggestions hereIt is well known that Peking University is a great place to lean. There are several factorsaccounting for this choice and the following are the most typical ones. First and foremost,Peking University is one of the top universities in China and the birthplace of many great minds. Therefore, it can provide high-quality teaching resources, which is essential for a foreign learner.In addition, Beijing is the capital of China and there are various historic buildings. They provideforeign students to know Chinese culture and historyI hope you will find these suggestions helpful and wish you all the best！Yours，Li Ming 【参考译文】亲爱的露丝:得知你要来中国的大学学习,我很高兴。

2019年12月英语四级完整版答案作文部分：范文一： The modern technology has greatly altered the mode of communication among people. With the help of the Internet, people can easily contact each other anytime anywhere. However, the side effect is that many people have becomeover-dependent on the Internet and neglected face-to-face communication.As far as I'm concerned, electronic communication cannot fully replace the direct contact among people. Although it seems to bring everyone together, it actually estranges people and decreases the effectiveness of communication. A typical example is that, traditionally, people working in the same office simply walk to others and talk. Today, however, co-workers tend to send e-mails or instant messages through the Internet even when they are sitting next to each other. As words can never convey the full message, it usually takes much more time and rounds of conversation than face-to-face communication, in which people can discuss more directly with less loss of information.To conclude, the Internet enables more effective communication in some situations, but over-dependence on it actually pulls people apart.范文二：It is frequently observed that many people keep looking down at their mobile phones whatever they are doing. It is true that mobile phones have brought great convenience to us as we can send short messages, check e-mails, surf the Internet, or watch videos almost anywhere. However, the overuse of mobile phones also leads to some serious problems.The over-dependence on mobile phones can harm the relationship among friends and family. With mobile phones, people do not talk as much as before. For example, sometimes at dinner tables, instead of chatting and laughing with each other, manypeople choose to chat with other friends online. In other words, mobile phones help people contacting friends far away more easily at the expense of reducing the communication with those who are sitting right next to them.In conclusion, mobile phone can be a useful tool in modern life, but overusing it damages interpersonal relationship. There is no point to lose our intimacy with friends and family to modern technology.范文三：The impact of the Internet on learningExplain why education doesn’t simply mean learning to obtain informationIn the age of knowledge explosion, the Internet opens a magical portal for leaners to get access to seemingly incessant information. But is information equal to knowledge? “Once I learn how to use google, isn't that all the education I really need?” This question fully embodies the prejudiced opinion that as long as people acquire abundant information, they will get proper education.The reason why education doesn’t simply mean learning to obtain information is that education is not limited to the hard facts or theories students can learn from their textbooks or the Internet. It relates to a wider scope ranging from the obtainment of practical skills to the development of characters, which are hard for students to learn simply by googling. Consequently, comprehensive learning in schools that includes learning knowledge, conducting experiments and communicating with peers is what true education is.In a word, the Internet does provide valuable information for learners, but people should be fully conscious of the essence of education and learn to tell the right from the wrong.听力部分：1. C. Consult a travel agent.2. A. They are on a long trip by car.3. C. He is unwilling to speak in public.4. B. Purse further education.5. A. He would not be available to start the job in time.6. B. Mechanic.7. D. Ask Laura to put off the cleaning until another week.8. A. A problem caused by the construction.9. C. To place an order for some products.10. A. The person in charge is not in the office.11. B. 0734, 21653 extension 51.12. B. Since he took to heavy smoking.13. A. He is getting too fat.14. D. They dislike doing physical exercise.15. C. To find a girlfriend.16-19音频无。

2019年12月大学英语四级考试真题及参考答案完整版(第一套)Part I Writing (25minutes) Directions: For this part, you are allowed 30 minutes to write a letter to a foreign friend who wants to study. Please recommend a university to him. You should write at least 120 words but no more than 180 words.【参考范文】Dear，I am delighted to hear that you are going to study in a Chinese university. Since you haveasked for my advice about choosing which university I will try to give you some useful suggestions hereIt is well known that Peking University is a great place to lean. There are several factorsaccounting for this choice and the following are the most typical ones. First and foremost,Peking University is one of the top universities in China and the birthplace of many great minds. Therefore, it can provide high-quality teaching resources, which is essential for a foreign learner. In addition, Beijing is the capital of China and there are various historic buildings. They provide foreign students to know Chinese culture and historyI hope you will find these suggestions helpful and wish you all the best！Yours，Li Ming 【参考译文】亲爱的露丝:得知你要来中国的大学学习,我很高兴。

大学英语四级真题试卷及详细答案一(完整版)目录大学英语四级真题详细答案(完整版) (1)大学英语四级真题试题一(完整版) (42)快速对答案 (56)大学英语四级真题详细答案(完整版)Part I Writing (25 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 how to best handle the relationship between doctors and patients. You should write at least 120 words but no more than 180 words.Part II Listening Comprehension (30 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。

2019年12月四级考试真题及答案第-套Part Writing (30 minutes)Directions: For this part, уоu are allowed 30 minutes to write а letter to а foreignfriend who wants to teach English in China. Please recommend а cityto him. You should write at least 120 words but по more than 180 words.Part II Listening Comprehension (25 minutes)Section A、Directions:In this section, уou will hear three news reports. At the end of each newsreport, уоu will hear two or three questions. Both the news report andthen questions will be spoken only once. After уоu hear a question, уоumust choose the best answer. from the four choices markedA), В), C) andD). Then mark the corresponding letter on Answer Sheet lwith а singleline through the centre.Questions l and 2 are based on the news report you have just heard. 1. A) Many facilities were destroyed by a wandering cow.В) A wandering cow knocked down one of its fences.C) Some tourists were injured by a wandering cow.D) A wandering cow was captured by the police.2. A) It was shot to death by a police officer.￥B) It found its way back to the park' 's zoo.C) It became a great attraction for tourists.D) It was sent to the animal control department.Questions 3 and 4 are based on the news report you have just hear d.3. A) It is the largest of its kind.B) It is going to be expanded.C) It is displaying more fossil specimens.D) It is staring an online exhibition.&4. A) A collection of bird fossils from Australia.B) Photographs of certain rare fossil exhibits.C) Some ancient wall paintings from Australia.D) Pictures by winners of а wildlife photo contest.Questions 5 to 7 are based on the news report you have just heard.5. A) Pick up trash.В) Amuse visitors.C) Deliver messages.$D) Play with children.6. A) They are especially intelligent.B) They are children 's favorite.C) They are quite easy to tame.D) They are clean and pretty.7. A) Children may be harmed by the rooks.B) Children may be tempted to drop litter.C) Children may contract bird diseases.*D) Children may overfeed the rooks.Section BDirections: 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 l with a single linethrough the centre.Questions 8 to 11 are based on the conversation you have just heard.8. A) It will be produced at Harvard University.B) It will be hosted by famous professors.C) It will cover different areas of science.(D) It will focus on recent scientific discoveries.9. A) It will be more futuristic.B) It will be more systematic.C) It will be more entertaining.D) It will be easier to understand.10. A) People interested in science.B) Youngsters eager to explore."C) Children in their early teens.~D) Students majoring in science.11. A) Offer professional advice.B) Provide financial support.C) Help promote it on the Internet.D) Make episodes for its first season.Questions 12 to 15 are based on the conversation you have just heard.12. A) Unsure.B) Helpless.…C) Concerned.D) Dissatisfied.13. A) He is too concerned with being perfect.B) He loses heart when faced with setbacks.C) He is too ambitious in achieving goals.D) He takes on projects beyond his ability.14. A) Embarrassed.B) Unconcerned.…C) Miserable.D) Resentful.15. A) Try to be optimistic whatever happens.B) Compare his present with his past only.C) Always learn from others' achievements.D) Treat others the way he would be treated.SectionCDirections: 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 questionswіll bе ѕроkеn оnlу оnсе. Аftеr уоu hеаr аquеѕtіоn, уои muѕt сhооѕе thеbest answer from the four choices marked A), B), C) and D). Then markthe corresponding letter on Answer Sheet 1 with a single line through thecentre.Questions 16 to 18 are based on the passage you have just heard.16. A) They have a stronger sense of social responsibility.B) They are more likely to succeed in the humanities.C) They are more likely to become engineers.D) They have greater potential to be leaders.17. A) Praise girls who like to speak up frequently.B) Encourage girls to solve problems on their own.{C) Insist that boys and girls work together more.D) Respond more positively to boys' comments.18. A) Offer personalized teachingB) Provide a variety of optionalC) Place great emphasis on test scores.D) Pay extra attention to top students.Questions 19 to 21 are based on the passage you have just heard.19. A) It often rains cats' and dogs.·B) It seldom rains in summer time.C) It does not rain as much as people think.D) It is one of the most rainy cities in the US.20. A) They drive most of the time.B) The rain is usually very light.C) They have got used to the rain.D) The rain comes mostly at night.21. A) It has a lot of places for entertainment.$B) It has never seen thunder and lighting.C) It has fewer cloudy days than any other coastal city.D) It has mild weather both in summer and in winter .Questions 22 to 25 are based on the passage you have just heard.22. A) It occurs when people are doing a repetitive activity.B) It results from exerting one 's muscles continuously.C) It happens when people engage in an uncommon activity.D) It comes from staining one 's muscles in an unusual way.，23. A) Blood flow and body heat increase in the affected area.B) Body movements in the affected area become difficult.C) They begin to make repairs immediately.D) They gradually become fragmented.24. A) About one week.B) About two days.C) About ten days.D) About four weeks.￥25. A) Apply muscle creams.B) Drink plenty of water.C) Have a hot shower.D) Take pain-killers..Part llI Reading Comprehension (40 minutes) Section ADirections: In this section, there is a passage with ten blanks. You are required 1oselect one word for each blank from a list of choices given in a word bankfollowving the passage. Read the passage through carefuly before makingyour choices. Each choice in the bank is identified by a letter: Pleasemark the corresponding letter for each item on Answer Sheet 2 with asingle 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.When travelling overseas, do you buy water in plastic bottles or take yourchances with tap water' Imagine you are wandering about on a Thai island or_ 26the ruins of Angkor. It's hot so you grab a bottle of water from a local vendor. It's thesafe, sane thing to do, right The bottle is_ 27, and the label says“pure water”but maybe what's inside is not you still be drinking it if you knewthat more than 90percent of all bottled water sold around the world_29microplasticsThat's the conclusion of a recently__ 30_study, which analyzed 259 bottlesfrom ll brands sold in nine countries,-31an average of 325 plastic particles per liter of water. These microplastics included a__ 32commonly known as PET and are widely used in the manufacture of clothing and food and_ 33_ containers. The study was conducted at the State University of New York on behalf of Orb Media, ajournalism organization. About a million bottles are bought every minute, not only bythirsty tourists but also by many of the billion worldwide who live with unsafedrinking water.Confronted with this__ 34 several bottled-water manufacturers includingNestle and Coco-Cola undertook their own studies using the same studies showed that their water did contain microplastics, but far less than thOrb study suggested. Regardless, the World Health Organization has now launched a review into the__ 35health risks of drinking water from plastic bottles.A) adequateB) admiringC) containsD) defending%E) evidenceF) instantG) liquidH) modifiedI) naturalJ) potentialK) releasedL) revealing(M) sealedN) solvesO) substance :Section BDirections: In this section, you are going to read a passage with ten statementsattached to each statement contains information given in one of theparagraphs. Identify the paragraph from which the information is may choose a paragraph more than once. Each paragraph is markedwith a letter: Answer the questions by marking the corresponding letteron Answer Sheet 2.The Quiet Heroism of Mail Delivery'·[A] On Wednesday, a polar wind brought bitter cold to the Midwest. Overnight,Chicago reached a low of 21 degrees Fahrenheit below zero, making it slightly colderthan Antarctica, Alaska, and the North Pole. Wind chills were 64 degrees below zeroin Park Rapids, Minnesota, and 45 degreesbelow zero in Buffalo, North Dakota,according to the National Weather Service. Schools, restaurants, and businessesclosed, and more than l ,000 flights have been canceled.【[B] Even the United States Postal Service (USPS) suspended mail deliverytemporarily. "Due to this arctic outbreak and concerns for the safety of USPSemployees," USPS announced Wednesday morning, the Postal Service is suspendingdelivery Jan. 30 in the following 3-digit ZIP Code locations." Twelve regions werelisted as unsafe on Wednesday; on Thursday, eight remained.[C] As global surface temperatures increase, so does the likelihood of extremeweather. In 2018 alone, wildfires, volcanic eruptions, hurricanes, mudslides, and othernatural disasters cost at least $49 billion in the United States. As my colleague VannNewkirk reported, Puerto Rico is still confronting economic and structural destructionand resource scarcity from 2017's Hurricane Maria. Natural disasters can wreck acommunity's infrastructure, disrupting systems for months or years. Some services,however, remind us that life will eventually return, in some form, to normal,[D] Days after the deadly 2017 wildfires in Santa Rosa, California, a dronecaught footage of a USPS worker, Trevor Smith, driving through burned homes in thatfamiliar white van, collecting mail in an affected area. The video is striking: Theoperation is familiar, but the scene looks like the end of the world. According to RaeAnn Haight, the program manager for thenational-preparedness office at USPS,Smith was fulfilling a request made by some of the home owners to pick up any mailthat was left untouched. For Smith, this was just another day on the job. I followedmy route like I normally do," Smith told a reporter. As I'd come across a box thatwas up but with no house, I checked, and there was mail- -outgoing mail- -in it. Andso we picked those up and carried on.'[E] USPS has sophisticated emergency plans for natural disasters. Across thcountry, 285 emergency-management teams are devoted to crisis control. These teamsare trained annually using a framework known as the three Ps: people, property,product. After mail service stops due to weather, the agency 's top priority is ensuringthat employees are safe. Then it evaluates the health of infrastructure, such as theroads that mail carriers drive on. Finally, it decides when and how to re-openoperations. If the destruction is extreme, mail addressed to the area will get sentelsewhere. In response to Hurricane Katrina in 2005, USPS redirected incoming NewOrleans mail to existing mail facilities in Houston. Mail that was already processed inNew Orleans facilities was moved to an upper floor so it would be protected fromwater damage.[F] As soon as it's safe enough to be outside,' couriers start distributingaccumulated mail on the still-accessible routes. USPS urges those without standingaddresses to file change-of- address forms with their new location. After HurricaneKatrina hit in 2005, mail facilities were set up in dozens of other locations across thecountry in the two weeks that USPS was unable to provide street delivery.[G] Every day, USPS processes, on average, million pieces ofmail -anything from postcards to Social Security checks to medicine. Spokespeoplefrom both USPS and UPS told me all mail is important. But some mail can beextremely sensitive and timely. According to data released in January 2017, 56percent of bills are paid online, which means that just under half of payments still relyon delivery services to be completed.[H]It can be hard to identify which parcels are carrying crucial items such asSocial Security checks, but USPS and UPS try their best to prioritize sensitivematerial. They will coordinate with the Social Security Administration to make surethat Social Security checks reach the right people in a timely fashion. After HurricaneFlorence and Hurricane Michael last fall, USPS worked with state and local electionboards to make sure that absentee ballots were available and received on time.^[I] Mail companies are logistics companies, which puts them in a special positionto help when disaster strikes. In a 2011 USPS case study, the agency emphasized itsmassive infrastructure as a unique federal asset" to be called upon in a disaster orterrorist attack. I think we're unique as a federal agency," USPS official MikeSwigart told me, because we're in literally every community in this countryWe' re obligated to deliver to that point on a daily basis.'[J]Private courier companies, which have more dollars to spend, use theirexpertise in logistics to help revitalize damaged areas after a disaster. For more than adecade, FedEx has supported the American Red Cross in its effort to get emergencysupplies to areas affected by disasters, both domestically and internationally. In 2012,the company distributed more than 1,200 MedPacks to Medical Reserve Corps groupsin California, and donated space for million pounds of charitable shipping October, the company pledged $1 million in cash and transportation support forHurricanes Florence and Michael. UPS's charitable arm, the UPS Foundation, usesthe company 's logistics to help disaster-struck areas rebuild. We realize that as acompany with people, trucks, warehouses, we needed to play a larger role," saidEduardo Martinez, the president of the UPS Foundation. The company employs it:trucks and planes to deliver food, medicine, and water. The day before I spoke toMartinez in November, he had been touring the damage from Hurricane Michael inFlorida with the American Red Cross. Wehave an obligation to make sure ourcommunities are thriving, prosperous," he said.[K] Rebuilding can take a long time, and even then, impressions of the disastermay still remain. Returning to a sense of normalcy can be difficult, but some smallroutines- -mail delivery being one of them- -may help residents remember that theircommunities are still their communities. When they see that carrier back out on thestreet," Swigart said, that's the first sign to them that life is starting to return tonormal."36. The United States Postal Service has a system to ensure its employees' safety.37. One official says USPS is unique in that it has more direct reach tccommunities compared with other federal agencies38. Natural disasters can have a long-lasting impact on community life.39. Mail delivery service i$ still responsible for the completion of almost half ofpayments.！40. The sight of a mailman on the street is a reassuring sign of life becomingnormal again.41. After Hurricane Katrina interrupted routine delivery, temporary mail servicepoints were set up.42. Postal service in some regions in the . was suspended due to extreme coldweather.43. Private postal companies also support disaster relief efforts by distributingurgent supplies.44. A dedicated USPS employee was on the job carrying out duties in spite ofextreme conditions.45. Postal services work hard to identify items that require priority treatment.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 line 'through the centre.Passage OneQuestions 46 to 50 are based on the following passage.Professor Ashok Goel of Georgia Tech developed an artificially intelligentteaching assistant to help handle the enormous number of student questions in theonline class, Knowledge Based Artificial Intelligence. This online course is a corerequirement of Georgia Tech's online Master of Science in Computer Scienceprogram. Professor Goelalready had 8 teaching assistants, but that wasn t enough todeal with the overwhelming number of questions from students.Many students drop out of online courses because of the lack of teaching students feel isolated or confused and reach out with questions that gounanswered, their motivation to continue begins to fade. Professor Goel decided to dosomething to remedy this situation and his solution was to create a virtual assistantnamed Jill Watson, which is based on the IBM Watson platform.Goel and his team developed several versions of Jill W atson before releasing herto the online forums. At first, the virtual assistant wasnt too great. But Goel and histeam sourced the online discussion forum to find all 40,000 questions that had everbeen asked since the class was launched. Then they began to feed Jill the questionsand answers. After some adjustment and sufficient time, Jill was able to answer thestudents questions correctly 97% of the time. The L virtual assistant became soadvanced and realistic that the students didn t know she was a computer. The students,who were studying artificial intelligence, were interacting with artificial intelligenceand couldn't tell it apart from a real human being. Goel didn 't inform them about Jill'strue identity until April 26. The students were actually very positive about theexperience.The goal of Professor Goel's virtual assistant next year is to take over answering40% of all questions posed by students on the online forum. The name, Jill Watson,will of course, change to something else next semester. Professor Goel has a muchrosier outlook on the future of AI than say, Elon Musk, Stephen Hawking, Bill Gatesor Steve Wozniak.46. What do we learn about Knowledge-Based Artificial Intelligence】A) It is a robot that can answer students' questions.B) It is a course designed for students to learn online.C) It is a high-tech device that revolutionizes teaching.D) It is a computer program that aids student learning.47. What problem did Professor Goel meet withA) His students were unsatisfied with the assistants.B) His course was too difficult for the students.C) Students questions were too many to handle.】D) Too many students dropped out of his course.48. What do we learn about Jill WatsonA) She turned out to be a great success.B) She got along pretty well with students.C) She was unwelcome to students at first.D) She was released online as an experiment.10/23149. How did the students feel about Jill W atson）A) They thought she was a bit too artificial.B) They found her not as capable as expected.C) They could not but admire her knowledge.D) They could not tell her from a real person.50. What does Professor Goel plan to do next with Jill W atsonA) Launch different versions of her online.B) Feed her with new questions and answers.c) Assign her to answer more of students questions.&D) Encourage students to interact with her more freely.Passage TwoQuestions 51 to 55 are based on the following passage.Thinking small, being engaging, and having a sense of humor don' t hurt. Thoseare a few of the traits of successful science crowdfunding efforts that emerge from arecent study that examined nearly 400 campaigns. But having a large network andsome promotional skills may be more crucial.Crowdfunding, raising money for a project through online appeals, has taken offin recent years for everything from making movies to building water-saving have tried to tap Internet donors, too, with mixed success. Some raisedmore than twice their goal, but others have fallen short of reaching more modesttargets.To determine what separates science crowdfunding triumphs from failures, ateam led by science communications scholar Mike Schäfer of the University of Zurichin Switzerland examined the content of the WebPages for 371 recent campaigns.Four traits stood out for those that achieved their goals, the researchers report inPublic Understanding of Science. For one, they use a crowdfunding platform thatspecializes in raising money for science, and not just any kind of project. Althoughsites like Kickstarter take all comers, platforms such as Experiment. com,, and Petridish. org only present scientific projects. For another, theypresent the project with a funny video because good visuals and a sense of humorimproved success. Most of them engage with potential donors since projects thatanswered questions from interested donors and posted lab notes fared better. And theytarget a small amount of money. The projects included in the study raised $4000 onaverage, with 30% of projects receiving less than $ 1000. The more money a projectsought, the lower the chance it reached its goal, the researchers found.Other factors may also significantly influence a project's success, most notably,the size of a scientist's personal and professional networks, and how muchresearcher promotes a project on his or her own. Those two factors are by far morecritical than the content on the page. Crowdfunding can be part of researchers effortsto reach the public, and people givebecause they feel a connection to the person"who is doing the fundraising- -not necessarily to the science."11/3151. What do we learn about the scientists trying to raise money online for theirprojectsA) They did not raise much due to modest targets.B) They made use of mixed fundraising strategies.C) Not all of them achieved their anticipated goals.D) Most of them put movies online for the purpose.52. What is the purpose of Mike Schafer's research of recent crowdfundingcampaignsA) To create attractive content for science websites.^B) To identify reasons for their different outcomes.C) To help scientists to launch innovative projects.D) To separate science projects from general ones.53. What trait contributes to the success of a crowdfunding campaignA) The potential benefit to future generations.为B) Its interaction with prospective donors.C) Its originality in addressing financial issues.$D) The value of the proposed project.54. What did the researchers think of the financial targets of crowdfundingprojectsA) They should be small to be successful.B) They should be based on actual needs.C) They should be assessed with great care.D) They should be ambitious to gain notice.55. What motivates people to donate in a crowdfunding campaignA) The ease of access to the content of the webpage.：B) Their desire to contribute to the cause of science.C) The significance and influence of the project itself.D) Their feeling of connection to the scientists themselves.Part IV Translation (30 minutes) Directions: For this part, you cre allowed 30 minutes to translate a passage from( 'hinese into English. You should write your answer on Answer Sheet 2.中国家庭十分重视孩子的教育。

art ⅠWriting (30 minutes)2019年12月14日，大学英语四级笔试考试已经结束，各位考生对本次四级考试的做题感觉如何呢？第一时间为大家解读2019年12月大学英语四级考试真题参考答案，希望大家都能够顺利通过本次四级考试。

Directions: For this part, you are allowed 30 minutes to write a letter to a foreign friend who wants to learn Chinese. Please recommend a university to him. You should write at least 120 words but no more than 180 words.【参考范文】Dear Lucy,I am delighted to hear that you are going to learn Chinese ina Chinese university. Since you have asked for my advice about choosing which university, I will try to give you some useful suggestions here.It is well known that Peking University is a great place to learn Chinese. There are several factors accounting for this choice and the following are the most typical ones. First and foremost, Peking University is one of the top universities inChina and the birthplace of many great minds. Therefore, it can provide high-quality teaching resources, which is essential for a foreigner learner.In addition, Beijing is the capital of China and there are various historic buildings. They provide foreign students a good chance to know Chinese culture and history.I hope you will find these suggestions helpful and wish you all the best.Yours,Li Ming【参考译文】亲爱的露丝：得知你要来中国的大学学习汉语，我很高兴。

2019年12月大学英语四级考试真题及参考答案完整版(第一套)Part I Writing (25minutes) Directions: For this part, you are allowed 30 minutes to write a letter to a foreign friend who wants to study. Please recommend a university to him. You should write at least 120 words but no more than 180 words.【参考范文】Dear，I am delighted to hear that you are going to study in a Chinese university. Since you have asked for my advice about choosing which university I will try to give you some useful suggestions hereIt is well known that Peking University is a great place to lean. There are several factors accounting for this choice and the following are the most typical ones. First and foremost, Peking University is one of the top universities in China and the birthplace of many great minds. Therefore, it can provide high-quality teaching resources, which is essential for a foreign learner. In addition, Beijing is the capital of China and there are various historic buildings. They provide foreign students to know Chinese culture and historyI hope you will find these suggestions helpful and wish you all the best！Yours，Li Ming 【参考译文】亲爱的露丝:得知你要来中国的大学学习,我很高兴。

2019年12月四级真题及答案（全三套）第一套Part I Writing (30 minutes) Directions: For this part, you are allowed 30 minutes to write a letter to a foreign friend who wants to teach English in China. Please recommend a city to him. You should write at least 120 words but no more than 180 words.Part ⅡListening 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 then 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 1with a single line through the centre.Questions l and 2 are based on the news report you have just heard.1. A) Many facilities were destroyed by a wandering cow.B) A wandering cow knocked down one of its fences.C) Some tourists were injured by a wandering cow.D) A wandering cow was captured by the police.2. A) It was shot to death by a police officer. B) It found its way back to the park’s zoo.C) It became a great attraction for tourists. D) It was sent to the animal control department. Questions 3 and 4 are based on the news report you have just heard.3. A) It is the largest of its kind. B) It is going to be expanded.C) It is displaying more fossil specimens. D) It is staring an online exhibition.4. A) A collection of bird fossils from Australia. B) Photographs of certain rare fossil exhibits.C) Some ancient wall paintings from Australia. D) Pictures by winners of a wildlife photo contest. Questions 5 to 7 are based on the news report you have just heard.5. A) Pick up trash. B) Amuse visitors.C) Deliver messages. D) Play with children.6. A) They are especially intelligent. B) They are children’s favorite.C) They are quite easy to tame. D) They are clean and pretty.7. A) Children may be harmed by the rooks. B) Children may be tempted to drop litter.C) Children may contract bird diseases. D) Children may overfeed the rooks.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 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 8 to 11 are based on the conversation you have just heard.8. A) It will be produced at Harvard University. B) It will be hosted by famous professors.C) It will cover different areas of science. D) It will focus on recent scientific discoveries.9. A) It will be more futuristic. B) It will be more systematic.C) It will be more entertaining. D) It will be easier to understand.10. A) People interested in science. B) Youngsters eager to explore.C) Children in their early teens. D) Students majoring in science.11. A) Offer professional advice. B) Provide financial support.C) Help promote it on the Internet. D) Make episodes for its first season.Questions 12 to 15 are based on the conversation you have just heard.12. A) Unsure. B) Helpless. C) Concerned. D) Dissatisfied.13. A) He is too concerned with being perfect. B) He loses heart when faced with setbacks.C) He is too ambitious in achieving goals. D) He takes on projects beyond his ability.14. A) Embarrassed. B) Unconcerned. C) Miserable. D) Resentful.15. A) Try to be optimistic whatever happens. B) Compare his present with his past only.C) Always learn from others’ achievements.D) Treat others the way he would be treated.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 have a stronger sense of social responsibility.B) They are more likely to succeed in the humanities.C) They are more likely to become engineers.D) They have greater potential to be leaders.17. A) Praise girls who like to speak up frequently.B) Encourage girls to solve problems on their own.C) Insist that boys and girls work together more.D) Respond more positively to boys’ comments.18. A) Offer personalized teaching materials. B) Provide a variety of optional courses.C) Place great emphasis on test scores. D) Pay extra attention to top students. Questions 19 to 21 are based on the passage you have just heard.19. A) It often rains cats and dogs. B) It seldom rains in summer time.C) It does not rain as much as people think. D) It is one of the most rainy cities in the US.20. A) They drive most of the time. B) The rain is usually very light.C) They have got used to the rain. D) The rain comes mostly at night.21. A) It has a lot of places for entertainment.B) It has never seen thunder and lighting.C) It has fewer cloudy days than any other coastal city.D) It has mild weather both in summer and in winter.Questions 22 to 25 are based on the passage you have just heard.22. A) It occurs when people are doing a repetitive activity.B) It results from exerting one’s muscles continuously.C) It happens when people engage in an uncommon activity.D) It comes from staining one’s muscles in an unusual way.23. A) Blood flow and body heat increase in the affected area.B) Body movements in the affected area become difficult.C) They begin to make repairs immediately.D) They gradually become fragmented.24. A) About one week. B) About two days.C) About ten days. D) About four weeks.25. A) Apply muscle creams. B) Drink plenty of water.C) Have a hot shower. D) Take pain-killers..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.When travelling overseas, do you buy water in plastic bottles or take your chances with tap water? Imagine you are wandering about on a Thai island or 26 the ruins of Angkor. It’s hot so you grab a bottle of water from a local vendor. It’s the safe, sane thing to do, right? The bottle is27 , and the label says “pure water”, but maybe what’s inside is not so28 . Would you still be drinking it if you knew that more than 90 percent of all bottled water sold around the world 29 microplastics?That’s the conclusion of a recently 30 study, which analyzed 259 bottles from 11 brands sold in nine countries, 31 an average of 325 plastic particles per liter of water. These microplastics included a 32 commonly known as PET and are widely used in the manufacture of clothing and food and 33 containers. The study was conducted at the State University of New York on behalf of Orb Media, a journalism organization. About a million bottles are bought every minute, not only by thirsty tourists but also by many of the 2.1 billion worldwide who live with unsafe drinking water.Confronted with this 34 , several bottled-water manufacturers including Nestle and Coco-Cola undertook their own studies using the same methodology. These studies showed that their water did contain microplastics, but far less than the Orb study suggested. Regardless, the World Health Organization has now launched a review into the 35 health risks of drinking water from plastic bottles.Section BDirections: In this section, you are going to read a passage with ten statements attached to 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.The Quiet Heroism of Mail Delivery[A] On Wednesday, a polar wind brought bitter cold to the Midwest. Overnight, Chicago reached a low of 21 degrees Fahrenheit below zero, making it slightly colder than Antarctica, Alaska, and the North Pole. Wind chills were 64 degrees below zero in Park Rapids, Minnesota, and 45 degrees below zero in Buffalo, North Dakota, according to the National Weather Service. Schools, restaurants, and businesses closed, and more than 1,000 flights have been canceled.[B] Even the United States Postal Service (USPS) suspended mail delivery temporarily. “Due to this arctic outbreak and concerns for the safety of USPS employees,” USPS announced Wednesday morning, “the Postal Service is suspending delivery Jan. 30 in the following 3-digit ZIP Code locations.” Twelve regions were listed as unsafe on Wednesday; on Thursday, eight remained.[C] As global surface temperatures increase, so does the likelihood of extreme weather. In 2018 alone, wildfires, volcanic eruptions, hurricanes, mudslides, and other natural disasters cost at least $49 billion in the United States. As my colleague V ann Newkirk reported, Puerto Rico is still confronting economic and structural destruction and resource scarcity from 2017’s Hurrican e Maria. Natural disasters can wreck a community’s infrastructure, disrupting systems for months or years. Some services, however, remind us that life will eventually return, in some form, to normal.[D] Days after the deadly 2017 wildfires in Santa Rosa, California, a drone caught footage of a USPS worker, Trevor Smith, driving through burned homes in that familiar white van, collecting mail in an affected area. Thevideo is striking: The operation is familiar, but the scene looks like the end of the world. According to Rae Ann Haight, the program manager for the national-preparedness office at USPS, Smith was fulfilling a request made by some of the home owners to pick up any mail that was left untouched. For Smith, this was just another day on the job. “I followed my route like I normally do,” Smith told a reporter. “As I’d come across a box that was up but with no house, I checked, and there was mail—outgoing mail—in it. And so we picked those up and carried on.”[E] USPS has sophisticated emergency plans for natural disasters. Across the country, 285 emergency-management teams are devoted to crisis control. These teams are trained annually using a framework known as the three Ps: people, property, product. After mail service stops due to weather, the agen cy’s top priority is ensuring that employees are safe. Then it evaluates the health of infrastructure, such as the roads that mail carriers drive on. Finally, it decides when and how to re-open operations. If the destruction is extreme, mail addressed to the area will get sent elsewhere. In response to Hurricane Katrina in 2005, USPS redirected incoming New Orleans mail to existing mail facilities in Houston. Mail that was already processed in New Orleans facilities was moved to an upper floor so it would be protected from water damage.[F] As soon as it’s safe enough to be outside, couriers start distributing accumulated mail on the still-accessible routes. USPS urges those without standing addresses to file change-of-address forms with their new location. After Hurricane Katrina hit in 2005, mail facilities were set up in dozens of other locations across the country in the two weeks that USPS was unable to provide street delivery.[G] Every day, USPS processes, on average, 493.4 million pieces of mail—anything from postcards to Social Security checks to medicine. Spokespeople from both USPS and UPS told me all mail is important. But some mail can be extremely sensitive and timely. According to data released in January 2017, 56 percent of bills are paid online, which means that just under half of payments still rely on delivery services to be completed. [H] It can be hard to identify which parcels are carrying crucial items such as Social Security checks, but USPS and UPS try their best to prioritize sensitive material. They will coordinate with the Social Security Administration to make sure that Social Security checks reach the right people in a timely fashion. After Hurricane Florence and Hurricane Michael last fall, USPS worked with state and local election boards to make sure that absentee ballots were available and received on time.[I] Mail companies are logistics companies, which puts them in a special position to help when disaster strikes. In a 2011 USPS case study, the agency emphasized its massive in frastructure as a “unique federal asset” to be called upon in a disaster or terrorist attack. “I think we’re unique as a federal agency,” USPS official MikeSwigart told me, “because we’re in literally every community in this country … We’re obligated to d eliver to that point on a daily basis.”[J] Private courier companies, which have more dollars to spend, use their expertise in logistics to help revitalize damaged areas after a disaster. For more than a decade, FedEx has supported the American Red Cross in its effort to get emergency supplies to areas affected by disasters, both domestically and internationally. In 2012, the company distributed more than 1,200 MedPacks to Medical Reserve Corps groups in California, and donated space for 3.1 million pounds of charitable shipping globally. Last October, the company pledged $1 million in cash and transportation support for Hurricanes Florence and Michael. UPS’s charitable arm, the UPS Foundation, uses the company’s logistics to help disaster-struck areas rebu ild. “We realize that as a company with people, trucks, warehouses, we needed to play a larger role,” said Eduardo Martinez, the president of the UPS Foundation. The company employs its trucks and planes to deliver food, medicine, and water. The day before I spoke to Martinez in November, he had been touring the damage from Hurricane Michael in Florida with the American Red Cross. “We have an obligation to make sure our communities are thriving, prosperous,” he said.[K] Rebuilding can take a long time, and even then, impressions of the disaster may still remain. Returning to a sense of normalcy can be difficult, but some small routines—mail delivery being one of them—may help residents remember that their communities are still their communities. “When they see that carrier back out on the street,” Swigart said, “that’s the first sign to them that life is starting to return to normal.”36. The United States Postal Service has a system to ensure its employees’ safety.37. One official says USPS is unique in that it has more direct reach to communities compared with other federal agencies38. Natural disasters can have a long-lasting impact on community life.39. Mail delivery service i$ still responsible for the completion of almost half of payments.40. The sight of a mailman on the street is a reassuring sign of life becoming normal again.41. After Hurricane Katrina interrupted routine delivery, temporary mail service points were set up.42. Postal service in some regions in the U.S. was suspended due to extreme cold weather.43. Private postal companies also support disaster relief efforts by distributing urgent supplies.44. A dedicated USPS employee was on the job carrying out duties in spite of extreme conditions.45. Postal services work hard to identify items that require priority treatment.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.Professor Ashok Goel of Georgia Tech developed an artificially intelligent teaching assistant to help handle the enormous number of student questions in the online class, Knowledge Based Artificial Intelligence. This online course is a core requirement of Georgia Tech’s online Master of Science in Computer Science program. Professor G oel already had 8 teaching assistants, but that wasn’t enough to deal with the overwhelming number of questions from students.Many students drop out of online courses because of the lack of teaching support. When students feel isolated or confused and reach out with questions that go unanswered, their motivation to continue begins to fade. Professor Goel decided to do something to remedy this situation and his solution was to create a virtual assistant named Jill Watson, which is based on the IBM Watson platform.Goel and his team developed several versions of Jill Watson before releasing her to the online forums. At first, the virtual assistant wasn’t too great. But Goel and his team sourced the online discussion forum to find all 40,000 questions that had ever been asked since the class was launched. Then they began to feed Jill the questions and answers. After some adjustment and sufficient time, Jill was able to answer the students’ questions correctly 97% of the time. The virtual assistant became so advanced and realistic that the students didn’t know she was a computer. The students, who were studying artificial intelligence, were interacting with artificial intelligence and couldn’t tell it apart from a real human being. Goel didn’t inform them about Jill’s true identity until April 26. The students were actually very positive about the experience.The goal of Professor Goel’s virtual assistant next year is to take over answering 40% of all questions posed by students on the online forum. The name, Jill Watson, will of course, change to something else next semester. Professor Goel has a much rosier outlook on the future of AI than say, Elon Musk, Stephen Hawking, Bill Gates or Steve Wozniak.46. What do we learn about Knowledge-Based Artificial Intelligence?A) It is a robot that can answer students’ questions.B) It is a course designed for students to learn online.C) It is a high-tech device that revolutionizes teaching.D) It is a computer program that aids student learning.47. What problem did Professor Goel meet with?A) His students were unsatisfied with the assistants.B) His course was too difficult for the students.C) Students’ questions were too many to handle.D) Too many students dropped out of his course.48. What do we learn about Jill Watson?A) She turned out to be a great success. B) She got along pretty well with students.C) She was unwelcome to students at first. D) She was released online as an experiment.49. How did the students feel about Jill Watson?A) They thought she was a bit too artificial. B) They found her not as capable as expected.C) They could not but admire her knowledge. D) They could not tell her from a real person.50. What does Professor Goel plan to do next with Jill Watson?A) Launch different versions of her online.B) Feed her with new questions and answers.C) Assign her to answer more of students’ questions.D) Encourage students to interact with her more freely.Passage TwoQuestions 51 to 55 are based on the following passage.Thinking small, being enga ging, and having a sense of humor don’t hurt. Those are a few of the traits of successful science crowdfunding efforts that emerge from a recent study that examined nearly 400 campaigns. But having a large network and some promotional skills may be more crucial.Crowdfunding, raising money for a project through online appeals, has taken off in recent years for everything from making movies to building water-saving gadgets. Scientists have tried to tap Internet donors, too, with mixed success. Some raised more than twice their goal, but others have fallen short of reaching more modest targets.To determine what separates science crowdfunding triumphs from failures, a team led by science communications scholar Mike Schäfer of the University of Zurich in Switzerland examined the content of the WebPages for 371 recent campaigns.Four traits stood out for those that achieved their goals, the researchers report in Public Understanding of Science. For one, they use a crowdfunding platform that specializes in raising money for science, and not just any kind of project. Although sites like Kickstarter take all comers, platforms such as , , and only present scientific projects. For another, they present the project with a funny video because good visuals and a sense of humor improved success. Most of them engage with potential donors since projects that answered questions from interested donors and posted lab notes fared better. And they target a small amount of money. The projects included in the study raised $4000 on average, with 30% of projects receiving less than $1000. The more money a project sought, the lower the chance it reached its goal, the researchers found.Other factors may also significantly influence a project’s s uccess, m ost notably, the size of a scientist’s personal and professional networks, and how much a researcher promotes a project on his or her own. Those two factors are by far more critical than the content on the page. Crowdfunding can be part of researc hers’ efforts to reach the public, and people give because “they feel a connection to the person” who is doing the fundraising—not necessarily to the science.51. What do we learn about the scientists trying to raise money online for their projects?A) They did not raise much due to modest targets.B) They made use of mixed fundraising strategies.C) Not all of them achieved their anticipated goals.D) Most of them put movies online for the purpose.52. What is the purpose of Mike Schäfer’s research of recent crowdfunding campaigns?A) To create attractive content for science websites.B) To identify reasons for their different outcomes.C) To help scientists to launch innovative projects.D) To separate science projects from general ones.53. What trait contributes to the success of a crowdfunding campaign?A) The potential benefit to future generations. B) Its interaction with prospective donors.C) Its originality in addressing financial issues. D) The value of the proposed project.54. What did the researchers think of the financial targets of crowdfunding projects?A) They should be small to be successful. B) They should be based on actual needs.C) They should be assessed with great care. D) They should be ambitious to gain notice.55. What motivates people to donate in a crowdfunding campaign?A) The ease of access to the content of the webpage.B) Their desire to contribute to the cause of science.C) The significance and influence of the project itself.D) Their feeling of connection to the scientists themselves.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.中国家庭十分重视孩子的教育。

2019年12月大学英语四级考试真题及参考答案完整版(第-套)Part I Writing (30 minutes)Directions: For this part, you are allowed 30 minutes to write a le tter to a foreign friend whowants to study. Please recommend a unive rsity to him. You should write at least 120 words butno more than 180 words.[参考范文]Dear Lucy.I am delighted to hear that you are going to study in a Chinese university. Since you haveasked for my advice about choosing which university. I will try to give you some useful suggestions here.It is well known that Peking University is a great place to lear. There are several factorsaccounting for this choice and the following are the most typical on es. First and foremost,Peking University is one of the top universiti es in China and the birthplace of many great , it can provide high -quality teaching resources, which is essential for a foreign additi on, Bejing is the capital of China and there are various historic b uildings. Theyprovideforeign students a good chance to know Chinese culture and his tory.Ihope you will find these suggestions helpful and wish you all the best.Yours,Li Ming[参考译文]亲爱的露丝:得知你要来中国的大学学习，我很高兴。

2019 年12 月大学英语四级考试真题及参考答案完整版(第一套)Part I Writing (25minutes) Directions: For this part, you are allowed 30 minutes to write a letter to a foreign friend whowants to study. Please recommend a university to him. You should write at least 120 wordsbut no more than 180 words.【参考范文】Dear ，I am delighted to hear that you are going to study in a Chinese university. Since you haveasked for my advice about choosing which university I will try to give you some usefulsuggestions hereIt is well known that Peking University is a great place to lean. There are several factorsaccounting for this choice and the following are the most typical ones. First and foremost,Peking University is one of the top universities in China and the birthplace of many greatminds. Therefore, it can provide high-quality teaching resources, which is essential for aforeign learner. In addition, Beijing is the capital of China and there are various historicbuildings. They provide foreign students to know Chinese culture and historyI hope you will find these suggestions helpful and wish you all the best ！Yours ，Li Ming 【参考译文】亲爱的露丝:得知你要来中国的大学学习,我很高兴。

2019年12月大学英语四级考试真题及参考答案完整版(第一套)Part I Writing (25minutes) Directions: For this part, you are allowed 30 minutes to write a letter to a foreign friend who wants to study. Please recommend a university to him. You should write at least 120 words but no more than 180 words.【参考范文】Dear，I am delighted to hear that you are going to study in a Chinese university. Since you haveasked for my advice about choosing which university I will try to give you some useful suggestions hereIt is well known that Peking University is a great place to lean. There are several factorsaccounting for this choice and the following are the most typical ones. First and foremost,Peking University is one of the top universities in China and the birthplace of many great minds. Therefore, it can provide high-quality teaching resources, which is essential for a foreign learner. In addition, Beijing is the capital of China and there are various historic buildings. They provide foreign students to know Chinese culture and historyI hope you will find these suggestions helpful and wish you all the best！Yours，Li Ming 【参考译文】亲爱的露丝:得知你要来中国的大学学习,我很高兴。