2019年12月大学英语四级听力VOA慢速英语(10)
2019年12月大学英语四级听力VOA慢速英语(14)(1)
2019年12月大学英语四级听力VOA慢速英语(14)A man holds up his iPhone during a rally in support of data privacy outside an Apple store in San Francisco, Calif., Feb. 23, 2016. Protesters strongly criticized a court ordertelling Apple to help unlock an encrypted iPhone. (APPhoto/Eric Risberg)The United States Justice Department says it has found a way to get information from an iPhoneused by a shooter inlast year’s mass shooting in San Bernardino, California.The Justice Department also said it no longer needs help from the iPhone’s manufac turer, Apple.The company had refused earlier demands by federal investigators for help in recovering data from the device.The government sought to require Apple to write new software programs to help investigators getthe data without knowing the iP hone’s password. The government believed the information wouldhelp it in its investigation of the San Bernardino shooting, in which 14 people were killed.Last month, a judge ordered Apple to help the government. But the Justice Departmentannounced this week it has beenable to collect data from the phone. It asked the judge to cancel her order. She did so on Monday.Last week, the government delayed another court hearingin the case. Officials said they neededtime to test a method that could help them gain access to the iPhone withoutApple’s assistance. That method was developed without the help of federal agents or Apple.Lawyers for Apple have said that the company wants to know how the device was unlocked.But the withdrawal of the court process could take away Apple’s ability to legally request details on the method the government used. It also is likely to raise questions among users of Apple productsand the technology industry about the strength of Apple’s security on its devices.Words in This Storydata – n. information such as texts, audio recordings, video recordings and picturespassword – n. a secret series of numbers or lettersthat allows you to use a computer system ordevicegain access – expression to enter a place or the storage area of an electronic deviceunlock – v. to make (something) available for use。
2019年12月 英语四级听力
2019年12月英语四级听力A) The number of male nurses has gone down.B) There is discrimination against male nurses.C) There is a growing shortage of medical personnel.D) The number of nurses has dropped to a record low.(正确答案)2. [单选题] *A) Working conditions.B) Educational system.C) Inadequate pay.D) Cultural bias.(正确答案)3. [单选题] *A) He fell out of a lifeboat.B) He was almost drowned.(正确答案)C) He lost his way on a beach.D) He enjoyed swimming in the sea.4. [单选题] *A) The lifeboats patrol the area round the clock.B) The beach is a good place to watch the tide.C) The emergency services are efficient.(正确答案)D) The beach is a popular tourist resort.5. [单选题] *A) It climbed 25 storeys at one go.B) It broke into an office room.C) It escaped from a local zoo.D) It became an online star.(正确答案)6. [单选题] *A) Release it into the wild.(正确答案)B) Return it to its owner.C) Send it back to the zoo.D) Give it a physical checkup.7. [单选题] *A) A racoon can perform acts no human can.B) A racoon can climb much higher than a cat.C) The racoon did something no politician could.(正确答案)D) The raccoon became as famous as some politicians.8. [单选题] *A) She received a bonus unexpectedly.B) She got a well-paying job in a bank.C) She received her first monthly salary.(正确答案)D) She got a pay raise for her performance.9. [单选题] *A) Two decades ago.(正确答案)B) Several years ago.C) Just last month.D) Right after graduation.10. [单选题] *A) He sent a small check to his parents.B) He treated his parents to a nice meal.(正确答案)C) He took a few of his friends to a gym.D) He immediately deposited it in a bank.11. [单选题] *A) Join her colleagues for gym exercise.(正确答案)B) Visit her former university campus.C) Buy some professional clothes.D) Budget her salary carefully.12. [单选题] *A) He has just too many things to attend to.B) He has been overworked recently.C) He has a difficult decision to make.(正确答案)D) He has just quarreled with his girlfriend.13. [单选题] *A) Turn to his girlfriend for assistance.B) Give priority to things more urgent.C) Think twice before making the decision.D) Seek advice from his family and advisor.(正确答案)14. [单选题] *A) His girlfriend does not support his decision.(正确答案)B) He is not particularly keen on the job offered.C) He lacks the money for his doctoral program.D) His parents and advisor have different opinions.15. [单选题] *A)They need time to make preparations.B) They haven’ t started their careers yet.(正确答案)C) They need to save enough money for it.D) They haven’t won their parents’ approval.16. [单选题] *A) Expressing ideas and opinions freely.B) Enriching social and intellectual lives.C) Acquiring information and professional knowledge.D) Using information to understand and solve problems.(正确答案)17. [单选题] *A) Traveling to different places in the world.B) Playing games that challenge one’s mind.(正确答案)C) Improving mind-reading strategies.D) Reading classic scientific literature.18. [单选题] *A) Participate in debates or discussions.(正确答案)B) Expose themselves to different cultures.C) Discard personal biases and prejudices.D) Give others freedom to express themselves.19. [单选题] *A) Why dogs can be faithful friends of humans.B) The nature of relationships between dogs.(正确答案)C) The reason a great many people love dogs.D) How dogs feel about their bonds with humans.20. [单选题] *A) They behave like other animals in many ways.B) They have an unusual sense of responsibility.C) They can respond to humans’ questions.D) They can fall in love just like humans.(正确答案)21. [单选题] *A) They stay with one partner for life.(正确答案)B) They have their own joys and sorrows.C) They experience true romantic love.D) They help humans in various ways.22. [单选题] *A) A rare animal.B) A historical site.C) A cow bone.(正确答案)D) A precious stone.23. [单选题] *A) Dating it.B) Preserving it.(正确答案)C) Measuring it.D) Identifying it.24. [单选题] *A) The channel needs to interview the boy.B) The boy should have called an expert.C) The boy's family had acted correctly.(正确答案)D) The site should have been protected.25. [单选题] *A) Conduct a more detailed search.(正确答案)B) Ask the university to reward Jude.C) Search for similar fossils elsewhere.D) Seek additional funds for the search.。
2019年12月大学英语四级听力VOA慢速英语(30)
2019年12月大学英语四级听力VOA慢速英语(30)Medical Mistakes, Third-Leading Cause of Death in USA new report says medical errors are the third-leading cause of death in the United States.Researchers at Johns Hopkins University in Baltimore, Maryland, say medical errors cause more than 250,000 deaths every year.If the research is correct, it means deaths caused by doctors’ errors are greater in number than deaths by respiratory disease.That number also is higher than the 150,000 deaths yearly reported by the Centers for Disease Control and Prevention.The CDC keeps the official statistics about causes of death in the U.S. The Johns Hopkins researchers say the CDC's way of colle cting data “fails to classify medical errors separately on the death certificate.”Dr. Martin Makary is a professor of surgery at the Johns Hopkins University School of Medicine. He is also anauthority on health reform. He says there is no standardized method for collecting national statistics about such medical care problems.The CDC’s methods for following medical-error deaths were adopted in 1949, according to the researchers. They saythe record-keeping needs to be changed to account for medical mistakes.Dr. Makary said, "At that time, it was under-recognized that diagnostic errors, medical mistakes, and the absence of safety nets could result in someone's death."He added, "medical errors were unintentionally excluded from national healthstatistics" for that reason.The researchers studied death rate data from 2000 to 2008. They then took information about hospitalization rates from 2013. Using that data, they determined that medical errors caused 251,000 deaths each year out of more than 35 million hospitalizations.This, researchers say, represents 9.5 percent of all deaths in the U.S. each year.In 2013, the CDC said heart disease was the leading cause of death in the U.S., followed by cancer andrespiratory disease."Top-ranked causes of death as reported by the CDC inform our country's research funding and public health priorities," Dr. Makary said."Right now, cancer and heart disease get a ton of attention, but since medical errors don't appear on the list, the problem doesn't get the funding and attention it deserves," he said.The researchers warn that medical errors are not the same thing as the work of bad doctors. They say medicalmistakes are the result of problems in medical systems and the coordination of care and insurance coverage.The study says its findings should help raise awareness about the problem and support research to prevent medical errors.I’m Mario Ritter._____________________________________________________________ ___Words in This Storyrespiratory – adj. having to do with the system of breathingauthority – n. someone who is an expert in a subjectdiagnostic – adj. relating to identifying sickness or diseaseabsence – n. the lack of somethingunintentionally – adv. done without meaning to, not planned or intentionalstatistics – n. numerical information often about how many or how often something is donedata – n. information。
(完整版)2019年12月英语四级听力真题原文【完整版】
2019年12月英语四级听力真题原文【完整版】News 1A device that weighs less than one kilogram is part of a mission that will allow scientists to deliver fourth generation or 4G mobile coverage to the moon in 2019。
If successful, the tiny device will provide the moon with its first ever mobile phone network。
The lunar network will support high definition streaming of video and data between the moon and earth。
The network is part of a mission to the moon。
This is a project with the goal of landing the first privately paid for mission to the moon。
The 4G mission is set to launch from Cape Canaveral in the United States on a space X Falcon 9 rocket in 2019。
Mission to the moon intends to establish and test the first elements of a communications network on the moon。
The scientists working on the project opted to build a 4G rather than a fifth generation or 5G network。
2019年12月大学英语四级听力真题MP3下载(含文本)-6页精选文档
Part III Listening ComprehensionSection ADirections: In this section, you will hear 8 short conversations and2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on Answer Sheet 2 witha single line through the centre.11.W: This crazy bus schedule has got me completely confused. I can’t figure out when my bus to Cleveland leaves?M: Why don’t you just go to the ticket window and ask?Q: What does the man suggest the woman do?12.W: I really enjoyed the TV special about drafts last night. Did you get home in time to see it?W: Oh, yes, but I wish I could have stayed awake long enough to see the whole thing.Q: What does the man mean?13.W: Airport, please. I’m running a little late. So just take the fastest way even if it’s not the most direct.M: Sure, but there is a lot of traffic everywhere today because of the football game.Q: What do we learn about the woman from the conversation?14.W: May I make a recommendation, sir? Our seafood with this special sauce is very good.M: Thank you, but I don’t eat shellfish. I’m allergic to it. Q: Where does this conversation most probably take place?15. W: now one more question if you don’t mind, what position in the company appeals to you most?M: Well, I’d like the position of sales manager if that position is still vacant.Q: What do we learn about the man?16. M: I don’t think I want to live in the dormitory next year.I need more privacy.W: I know what you mean. But check out the cost if renting an apartment first. I won’t be surprised if you change your mind. Q: What does the woman imply?17. M: You’re on the right track. I just think you need to narrow the topic down.W: Yeah, you’re right. I always start by choosing two boarder topics when I’m doi ng a research paper.Q: What do we learn from the conversation?18. W: This picnic should beat the last one we went to, doesn’t it?M: Oh, yeah, we had to spend the whole time inside. Good thing, the weather was cooperative this time.What do we learn about the speakers from the conversation?Long ConversationConversation OneM: When I say I live in Sweden, people always want to know about the seasons.W: The seasons?M: Yeah, you know how cold it is in winter? What is it like when the days are so short?W: So what is it like?M: Well, it is cold ,very cold in winter. Sometimes it is cold as 26 degrees below centigrade. And of course when you go out, you’ll wrap up warm. But inside in the houses it’s always very warm, much warmer than at home. Swedish people always complain that when they visit England, the houses are cold even in the good winter.W: And what about the darkness?M: Well, yeah, around Christmas time there’s only one hour of daylight, so you really looks forward to the spring. It is sometimes a bit depressing. But you see the summers are amazing, from May to July in the North of Sweden the sun never sets. It’s still light in the midnight. You can walk in the mountains and read a newspaper. W: Oh, yeah, the land of the midnight sun.M: Yeah, tha t’s right, but it’s wonderful. You won’t stay up all night. And the Swedes makes most of it often they started work earlier in summer and then leave at about 2 or 3 in the afternoon, so that they can really enjoy the long summer evenings. They’d like to work hard, but play hard, too. I think Londoners work longer hours, but I’m not sure this is a good thing.Q19: What do we learn about the man from the conversation?Q20: What do Swedish people complain about when they visit England in winter?Q21: How does the man describe the short hour of daylight around Christmas in Sweden?Q21: What does the man say about the Swedish people?Conversation TwoW: What kind of training does one need to go into this type of job? M: That’s a very good question. I don’t think there is any, specifically.W: For example, in your case, what was your educational background? M: Well, I did a degree in French at Nottingham. After that, I did careers work in secondary schools like the careers guidance people. Here is in the university. Then I went into local government because I found I was more interested in the administrative side. Then progressed on to universities. So there wasn’t any plan and there was no specific training. There are plenty of training courses in management techniques and committee work which you can attend now. W: But in the first place, you did a French degree.M: In my time, there wasn’t a degree you could do for administration.I think most of the administrators I’ve come across have degrees and all sorts of things.W: Well, I know in my case, I did an English literature degree and I didn’t really expect to end up doing what I am doing now.M: Quite.W: But you are local to Nottingham, actually? Is there any reason why you went to Nottingham University?M: No, no, I come from the north of England, from west Yorkshire. Nottingham was one of the universities I put on my list. And I like the look of it. The campus is just beautiful.W: Yes, indeed. Let’s see. Were you from the industrial part of Yorkshire?M: Yes, from the Woolen District.Q23. What was the man’s major at university?Q24: What was the man’s job in secondary schools?Q25: What attracted the man to Nottingham University?历年四级真题: http://hxen/CET46/CET4/zhenti/四六级频道: http://hxen/CET46/2011年6月英语四级考试内容汇总: http://hxen/CET46/dongtai/2011-12-17/163380.html1/6 1 2 3 4希望以上资料对你有所帮助,附励志名言3条:1、有志者自有千计万计,无志者只感千难万难。
2019年12月英语四级试卷及答案
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 foreign friend 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 ADirections: In this section, уou will hear three news reports. At the end of each news report, 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 each conversation, 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 bеѕроkеn оnlу оnсе. Аftеr уоu hеаr а quеѕtіоn, 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 teaching materials.OB) Provide a variety of optional courses.OC) 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 1o select 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 so28-.Would you still be drinking it if you knewthat more than 90percent of all bottled water sold around the world_29microplastics?That's the conclusion of a recently__ 30_study, which analyzed 259 bottlesfrom ll brands sold in nine countries,-31 an 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 2.1 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 methodology.These 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) defendingE) evidenceF) instantG) liquidH) modifiedI) naturalJ) potentialK) releasedL) revealingM) sealedN) solvesO) substance :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 theparagraphs. Identify the paragraph from which the information is derived.You 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 degrees below 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: The operation is familiar, but the scene looks like the end of the world. According to RaeAnn 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 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 tore-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, 493.4 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 3.1 million pounds of charitable shipping st October, the company pledged $1 million in cash and transportation support forHurricanes Florence and Michael. UPS's charitable arm, the UPS Foundation, usesthe company 's logistics to help disaster-struck areas rebuild. We realize that as acompany with people, trucks, warehouses, we needed to play a larger role," saidEduardo Martinez, the president of the UPS Foundation. The company employs it:trucks and planes to deliver food, medicine, and water. The day before I spoke toMartinez in November, he had been touring the damage fromHurricane Michael inFlorida with the American Red Cross. We have an obligation to make sure ourcommunities are thriving, prosperous," he said.[K] Rebuilding can take a long time, and even then, impressions of the disastermay still remain. Returning to a sense of normalcy can be difficult, but some smallroutines--mail delivery being one of them--may help residents remember that theircommunities are still their communities. When they see that carrier back out on thestreet," Swigart said, that's the first sign to them that life is starting to return tonormal."36. The United States Postal Service has a system to ensure its employees' safety.37. One official says USPS is unique in that it has more direct reach tccommunities compared with other federal agencies38. Natural disasters can have a long-lasting impact on community life.39. Mail delivery service i$ 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 U.S. 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 Goel already 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 support.When 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 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.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 atson?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 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 gadgets.Scientists 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 give because 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 theirprojects?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 Schafer's research of recent crowdfundingcampaigns?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.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 crowdfundingprojects?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 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。
2019年12月大学英语四级考试真题+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Part 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?文都教育英语老师在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 letterto a foreign friend who wants to study. Please recommend a university tohim. 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 study in a Chineseuniversity. Since you have asked for my advice about choosing whichuniversity, I will try to give you some useful suggestions here.It is well known that Peking University is a great place to learn.There are several factors accounting for this choice and the followingare 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 isessential for a foreign learner.In addition, Beijing is the capital of China and there are various historic buildings. They provide foreign students a good chance to know Chineseculture and history.I hope you will find these suggestions helpful and wishyou all the best.Yours,LiMing【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月大学英语四级听力VOA慢速英语(5)
2019年12月大学英语四级听力VOA慢速英语(5)The annual Washington Auto Show opened its doors to the general public Tuesday, after a three-day delay caused by a snowstorm that hit the U.S. East Coast. More than 30 world-class auto makers exhibited their latest models, placing special emphasis on connectivity.Coming on the heels of the larger shows in Los Angeles and Detroit, the Washington Auto Show has carved out a niche as the one that emphasizes new technologies, especially those that cause less damage to the environment.But with falling oil prices, the promotion of thriftier hybrid or all-electric vehicles was somewhat muted, shifting the auto show's focus to connectivity and automatization.Automotive engineering professor, Zoran Filipi, says the technology in this Mercedes S-class model shows that we are at the dawn of cars that almost drive themselves.“It has lane-keeping ability, it has advanced radar-based system to keep the vehicle’s speed also in sync with other vehicles and this can completely alleviate your effort, driving effort, in stop-and-go situations too, and finally the collision avoidance," said Filipi.Very soon we will see these technologies trickling-down to more affordable models as car makers work to develop fully autonomous-driving cars.In the meantime, says Filipi, fuel efficiency has improved 20 percent over the last 10 years.“This has mostly been achieved with advanced engine technologies – direct injection, turbo-charging, coupled to very modern transmissions, eight, nine, ten speeds that keep the engine running in the best possible region," he said.Almost all new models have built-in display screens that connect the vehicle to the driver’s smartphone and the Internet, helping in navigation, taking voice commands, and sending and receiving messages.“Therefore you can use all the applications you are used to, everything that is tailored to your needs in your car and it’s very seamless," said Filipi.Larger manufacturers, such as Toyota, say their all-electric fuel-cell cars are ready for the market and the only obstacle is the lack of charging stations.Others promote their hybrid gas-electric models, saying that the number of charging stations is constantly rising while the price of home chargers is dropping.South Korean carmaker Hyundai even offers a lifetime warranty for the battery in its top-of-the-line model, hoping to make the hybrid car more attractive to customers.。
2019年12月英语四级真题第一套含听力原文及答案
2019年12⽉英语四级真题第⼀套含听⼒原⽂及答案2019年12⽉英语四级真题第⼀套(含听⼒原⽂及答案)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 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 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 Ⅱ Reading Comprehension (40 minutes)Section ADirections:In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.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 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 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 21degrees 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 Vann Newkirk reported, Puerto Rico is still confronting economic and structural destruction and resource scarcity from 2017’s Hurricane 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. 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’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 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 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 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 Swigart told me, “because we’re in literally every community in this country … We’re obligated to deliver 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 $1 million in cash and transportation support for Hurricanes Florence and Michael. UPS’s charitable arm, the UPS Foundation, uses the company’s logistics to help disaster-struck areas rebuild.“We realize that as a company with people, trucks, warehouses, we needed to play a larger role,” said Eduardo Martinez, the president of the UPS Foundation. The company employs its trucks and planes to deliver food, medicine, and water. The day before I spoke to Martinez in November, he had been touring the damage from Hurricane Michael in Florida with the American Red Cross. “We have an obligation to make sure our communities are thriving, prosperous,” he said.[K] Rebuilding can take a long time, and even then, impressions of the disaster may still remain. Returning to a sense of normalcy can be difficult, but some small routines—mail delivery being one of them—may help residents remember that their communities are still their communities. “When they see that carrier back out on the street,” Swigart said, “that’s the first sign to them that life is starting to return to normal.”36. The United States Postal Service has a system to ensure its employees’ safety.37. One official says USPS is unique in that it has more direct reach to communities compared with other federal agencies38. Natural disasters can have a long-lasting impact on community life.39. Mail delivery service i$ 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 Goel 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 engaging, 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 Sch?fer 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/doc/828a3afe4228915f804d2b160b4e767f5acf80bc.html ,/doc/828a3afe4228915f804d2b160b4e767f5acf80bc.html , and/doc/828a3afe4228915f804d2b160b4e767f5acf80bc.html 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 success, most 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 researchers’ 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 Sch?fer’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 Ⅱ Translation (30 minutes) Directions:For this part, you are allowed 30 minutes to translate a passage from Chinese into English. Youshould 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答案解析
2019年12月大学英语四级考试真题及答案解析(1/1)Part ⅠWriting(30 minutes)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 place to him. You should write at least 120words but no more than 180words.______________下一题(1~2/共25题)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 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.News report onePlay00:0003:28VolumeQuestions l and 2 are based on the news report you have just heard.第1题A.A wandering cow was captured by the police.B.Some tourists were injured by a wandering cow.C.A wandering cow knocked down one of its fences.D.Many facilities were destroyed by a wandering cow.第2题A.It became a great attraction for tourists.B.It found its way back to the park’s zoo.C.It was shot to death by a police officer.D.It was sent to the animal control department.上一题下一题(3~4/共25题)Part ⅡListening Comprehension(25 minutes)News report twoPlay00:0001:50VolumeQuestions 3 and 4 are based on the news report you have just heard.第3题A.It is the largest of its kind.B.It is staring an online exhibition.C.It is going to be expanded.D.It is displaying more fossil specimens.第4题A.A collection of bird fossils from Australia.B.Some ancient wall paintings from Australia.C.Photographs of certain rare fossil exhibits.D.Pictures by winners of a wildlife photo contest.上一题下一题(5~7/共25题)Part ⅡListening Comprehension(25 minutes)News report threePlay00:0002:32VolumeQuestions 5 to 7 are based on the news report you have just heard.第5题A.Amuse visitors.B.Deliver messages.C.Pick up trash.D.Play with children.第6题A.They ar e children’s favorite.B.They are especially intelligent.C.They are clean and pretty.D.They are quite easy to tame.第7题A.Children may overfeed the rooks.B.Children may contract bird diseases.C.Children may be harmed by the rooks.D.Children may be tempted to drop litter.上一题下一题(8~11/共25题)Part ⅡListening Comprehension(25 minutes)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.Conversation 1Play00:0003:32VolumeQuestions 8 to 11 are based on the conversation you have just heard.第8题A.It will cover different areas of science.B.It will be hosted by famous professors.C.It will be produced at Harvard University.D.It will focus on recent scientific discoveries.第9题A.It will be more futuristic.B.It will be more entertaining.C.It will be more systematic.D.It will be easier to understand.第10题A.Youngsters eager to explore.B.Students majoring in science.C.Children in their early teens.D.People interested in science.第11题A.Provide financial support.B.Offer professional advice.C.Help promote it on the Internet.D.Make episodes for its first season.上一题下一题(12~15/共25题)Part ⅡListening Comprehension(25 minutes)Conversation 2Play00:0003:11VolumeQuestions 12 to 15 are based on the conversation you have just heard.第12题A.Unsure.B.Helpless.C.Dissatisfied.D.Concerned.第13题A.He loses heart when faced with setbacks.B.He is too concerned with being perfect.C.He takes on projects beyond his ability.D.He is too ambitious in achieving goals.第14题A.Embarrassed.B.Unconcerned.C.Resentful.D.Miserable.第15题pare his present with his past only.B.Try to be optimistic whatever happens.C.Always learn from others’ achievements.D.Treat others the way he would be treated.上一题下一题(16~18/共25题)Part ⅡListening Comprehension(25 minutes)Section CDirections: In this section, you will hear three passages. At the end of each passage, you will hearthree or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C)and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Passage onePlay00:0003:52VolumeQuestions 16 to 18 are based on the passage you have just heard.第16题A.They have greater potential to be leaders.B.They are more likely to become engineers.C.They are more likely to succeed in the humanities.D.They have a stronger sense of social responsibility.第17题A.Praise girls who like to speak up frequently.B.Insist that boys and girls work together more.C.Respond more positively to boys’ comments.D.Encourage girls to solve problems on their own.第18题A.Pay extra attention to top students.B.Provide a variety of optional courses.C.Place great emphasis on test scores.D.Offer personalized teaching materials.上一题下一题(19~21/共25题)Part ⅡListening Comprehension(25 minutes)Passage twoPlay00:0002:40VolumeQuestions 19 to 21 are based on the passage you have just heard.第19题A.It seldom rains in summer time.B.It does not rain as much as people think.C.It often rains cats and dogs.D.It is one of the most rainy cities in the US.第20题A.The rain is usually very light.B.They have got used to the rain.C.The rain comes mostly at night.D.They drive most of the time.第21题A.It has fewer cloudy days than any other coastal city.B.It has mild weather both in summer and in winter.C.It has never seen thunder and lighting.D.It has a lot of places for entertainment.上一题下一题(22~25/共25题)Part ⅡListening Comprehension(25 minutes)Passage threePlay00:0003:49VolumeQuestions 22 to 25 are based on the passage you have just heard.第22题A.It results from exerting one s muscles continuously.B.It oceurs when people are doing a repetitive activity.C.It happens when people engage in an uncommon activity.D.It comes from straining one´s muscles in an unusual way第23题A.They gradually become fragmented.B.They begin to make repairs immediately.C.Body movements in the affected area become difficult.D.Blood flow and body heat increase in the affected area.第24题A.About one week.B.About ten days.C.About four weeks.D.About two days.第25题A.Take pain-killers.B.Have a hot shower.C.Drink plenty of water.D.Apply muscle creams.上一题下一题(26~35/共30题)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.Finally, some good news about airplane travel. If you are on a plane with a sick passenger, you are unlikely to get sick. That is the 26 of a new study that looked at how respiratory (呼吸道) viruses 27 on airplanes. Researchers found that only people who were seated in individual - had a high risk of catching the illness. All other passengers had only a very 28 chance of getting sick according to the findings. Media reports have not necessarily presented. 29 informationabout the risk of getting infected on an airplane in the past. Therefore , these new findings should help airplane passengers to feel less 30 to catching respiratory infections while traveling by air.Prior to the new study. litter was known about the risks of getting 31 infected by common respiratory viruses, such as the flu or common cold, on an airplane, the researchers said. So, to 32 the risks of infection, the study team flew on 10 different 33 in the US. 34 side of a person infected with flu, as well as those sitting one roe in font of or behind this individual, had about an 80 person chance of getting sick. But other passengers were 35 safe from infection. They had a less than 3 percent chance of catching the flu.A) accurate B) conclusion C) directly D) eitherE) evaluate F) explorations G) flights H) largelyI) nearby J) respond K) slim L) spreadM) summit N) vividly O) vulnerable第26题【26】____第27题【27】____第28题【28】____第29题【29】____第30题【30】____第31题【31】____第32题【32】____第33题【33】____第34题【34】____第35题【35】____上一题下一题(36~45/共30题)Part ⅢReading Comprehension(40 minutes)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 Sheet2.A South Korean city designed for the future takes on a life of its ownA) Getting around a city is one thing - and then there’s the matter of getting from one city toanother. One vision of the perfect city of the future: a place that offers easy access to air travel.In 2011, a University of North Carolina business professor named John Kasarda published a book called Aerotropolis: The Way We’ll Live Next. Kasarda says future cities should be built intentionally around or near airports. The idea, as he has put it, is to of fer businesses “rapid, long-distance connectivity on a massive scale.”B) “The 18th century really was a waterborne (水运的) century, the 19th century a rail century. the 20th century a highway, car, truck century一and the 21st century will increasingly be an aviation century, as the globe becomes increasingly connected by air,”Kasarda says. Songdo, a city built from scratch in South Korea, is one of Kasarda’s prime examples. It has existed for just a few years.“ From the get-go, it was designed on the basis of connectivity and competitiveness,”says Kasada. “The government built the bridge directly from the airport to the Songdo International Business District. And the surface infrastructure was built in tandem with the new airport.”C) Songdo is a stone’s throw from South Korea’s Incheon Airport, its main international hub (枢纽). But it takes a lot more than a nearby airport to be a city of the future. Just building a place as an “international business district”doesn’t mean it will become one. Park Yeon Soo conceived (构想) this city of the future back in 1986. He considers Songdo his baby. “I am a visionary,”he says. Thirty years after he imagined the city, Park’s baby is close to 70 percent built, with 36.000 people living in the business district and 90,000 residents in greater Songdo. It’s about an hour outside Seoul, built on reclaimed tidal flats along the Yellow Sea, There’s a Coast Guard building and a tall trade tower, as well as a park, golf course and university.D) Chances are you’ve actually se en this place. Songdo appears in the most famous music video ever to come ou of South Korea. “Gangnam Style” refers to the fashionable Gangnam district in Seoul. But some of the video was filmed in Songdo.“I don’t know if you remember, there was a scene in a subway station. That was not Gangnam. That was actually Songdo,” says Jung Won Son, a professor of urban development at London’s Bartlett School of Planning, “Part of the reason to shoot there is that it’s new and nice.”E) The city was supposed to be a hub for global companies, with employees from all over the world. But hat’s not how it has turned out. Songdo’s reputation is as a futuristic ghost town. But the reality is more complicated. A bridge with big, light-blue loops leads into the business district. In the center of the main road, there’s a long line of flags of the world. On the corner, there’s a Starbucks and a 7-Eleven--all of the international brands that you see all over the world nowadays.F) The city is not empty. There are mothers pushing strollers, old women with walkers -- even in the middle of the day. when it’s 90 degrees out. Byun Young-Jin chairs the Songdo real estate association and started selling property here when the first phase of the city opened in 2005. He says demand has boomed in the past couple of years. Most of his clients are Korean. In fact, the developer says, 99 percent of the homes here are sold to Koreans. Young families move here because the schools are great. And that’s the problem: Songdo has become a popular Koreancity 一more popular as a residential area than a business one. It’s not yet the futuristic international business hub that planners imagined. “It’s a great place to live. And it’s becoming a great place to work,”says Scott Summers, the vice president of Gale International, the developer of the city. The floor-to-ceiling windows of his company’s offices overlook Songdo Central Park, with a canal full of kayaks and paddle boats. Shimmering (闪烁的) glass towers line the canal’s edge.G) “What’s happen ed is, because we focused on creating that quality of life first, which enabled the residents to live here, what has probably missed the mark is for companies to locate here,” he says. “There needs to be strong economic incentives.” The city is still unfin ished, and it feels a bit like a theme park. It doesn’t feel all that futuristic. There’s a high-tech underground trash disposal system. Buildings are environmentally friendly. Everybody’s television set is connected to a system that streams personalized language or exercise classes.H) But Star Trek this is not. And to some of the residents, Songdo feels hollow. “I’m, like, in prison for weekdays. That’s what we call it in the workplace,” says a woman in her 20s. She doesn’t want to use her name for fear of being fired from her job. She goes back to Seoul every weekend. “I say I’m prison-breaking on Friday nights.” But she has to make the prison break in her own car. There’s no high-speed train connecting Songdo to Seoul, just over 20 miles away.I) The man who first imagined Songdo feels frustrated. too. Park says he built South Korea a luxury vehicle, “like Mercedes or BMW. It’s a good car now. But we’re waiting for a good driver to accelerate.” But there are lots of other good cars out there, too. The world is dotted with futuristic, high-tech cities trying to attract the biggest international companiesJ) Songdo’s backers contend that it’s still early, and business space is filling up-about 70 percent of finished offices are now occupied. Brent Ryan, who teaches urban design at MIT, says Songdo proves a universal principle. “There have been a lot of utop ian (乌托邦的) cities in history. And the reason we don’t know about a lot of them is that a lot of them have vanished entirely.”In other words, when it comes to cities-or anything else-it is hard to predict the future.第36题Songdo’s popularity lies more in its quality of life than its business attraction._______第37题The man who conceives Songdo feels disappointed because it has fallen short of his expectations._______第38题A scene in a popular South Korean music video was shot in Songdo._______第39题Songdo still lacks the financial stimulus for businesses to set up shop there._______第40题Airplanes will increasingly become the chief means of transportation, according to a professor._______第41题Songdo has ended up different from the city it was supposed to be._______第42题Some of the people who work in Songdo complain about boredom in the workplace. _______第43题A business professor says that a future city should have easy access to international transportation._______第44题Acording to an urban design professor, it is difficult for city designers to foresee what happen in the future._______第45题Park Yeon So. Who envisioned Songdo, feels a parental connection with the city._______上一题下一题(46~50/共30题)Part ⅢReading Comprehension(40 minutes)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.The fifth largest city in the US passed a significant soda tax proposal that will levy (征税)1.5 cents per liquid ounce on distributors.Philadelphia’s new measure was approved by a 13 to 4 city council vote. It sets a new bar for similar initiatives across the county. It is proof that taxes on sugary drinks can win substantial support outside super-liberal areas. Until now, the only city to successfully pass and implement a soda tax was Berkeley, California, in 2014.The tax will apply to regular and diet sodas, as well as other drinks with added sugar, such as Gatorade and iced teas. It’s expected to raise $410 million over the next five years, most of which will go toward funding a universal pre-kindergarten program for the city.While the city council vote was met with applause inside the council room, opponents to the measure, including soda lobbyists made sharp criticisms and a promise to challenge the tax in court.“The tax passed today unfairly singles out beverages-including low- and no-calorie choices,” said Lauren Kane, spokesw oman for the American Beverage Association. “But most importantly, it is against the law. So we will side with the majority of the people of Philadelphia who oppose this tax and take legal action to stop it.”An industry backed anti-tax campaign has spent at least $4 million on advertisements. The ads criticized the measure. characterizing it as a“grocery tax.”Public health groups applauded the approved tax as a step toward fixing certain lasting health issues that plague Americans. “The move to recapture a small part of the profits from an industry that pushes a product that contributes to diabetes, obesity and heart disease in poorer communities in order to reinvest in those communities will sure be inspirational to many other places,” said Jim Krieger, executive director of Healthy Food America. “Indeed, we are alreadyhearing from some of them. It’s not just Berkeley’ anymore.”Similar measures in California’s Albany, Oakland, San Francisco and Colorado’s Boulder are becoming hot-button issues Health advocacy groups have hinted that even more might be coming.第46题What does the passage say about the newly-approved soda tax in Philadelphia?A.It will change the lifestyle of many consumers.B.It may encourage other US cities to follow suit.C.It will cut soda consumption among low-income communities.D.It may influence the marketing strategies of the soda business.第47题What will the opponents probably do to respond to the soda tax proposal?A.Bargain with the city council.B.Refuse to pay additional tax.C.Take legal action against it.D.Try to win public support.第48题What did the industry-backed anti-tax campaign do about the soda tax proposal?A.It tried to arouse hostile feelings among consumers.B.It tried to win grocers’ support against the measure.C.It kept sending letters of protest to the media.D.It criticized the measure through advertising.第49题What did public health groups think the soda tax would do?A.Alert people to the risk of sugar-induced diseases.B.Help people to fix certain long-time health issues.C.Add to the fund for their research on diseases.D.Benefit low-income people across the country.第50题What do we learn about similar measures concerning the soda tax in some other cities?A.They are becoming rather sensitive issues.B.They are spreading panic in the soda industry.C.They are reducing the incidence of sugar-induced diseases.D.They are taking away lot of profit from the soda industry.上一题下一题(51~55/共30题)Part ⅢReading Comprehension(40 minutes)Passage TwoQuestions 51 to 55 are based on the following passage.Popping food into the microwave for a couple of minutes may seem utterly harmless, but Europe’s stock of these quick-cooking ovens emit as much carbon as nearly 7 million cars, a new study has found. And the problem is growing. With costs falling and kitchen appliances becoming “status” items, owners are throwing away microwaves after an average of eight years. This is pushing sales of new microwaves which are expected to reach 135 million annually in the EU by。
2019年12月大学英语四级听力VOA慢速英语(20)
2019年12月大学英语四级听力VOA慢速英语(20)Hemingway Exhibit Opens at JFK Library in BostonPatrick Hemingway attends the show about his famous writer father, Ernest, in Boston, Massachusetts, on April 12, 2016. (AP Photo/Steven Senne)The novelist Ernest Hemingway wrote 47 possible endings to his book "A Farewell to Arms." Eightof them are part of a new show at the John F. Kennedy Presidential Library in Boston,Massachusetts. The ending that Hemingway finally chose is also there to see.Patrick Hemingway is the writer’s only surviving child. This week, he visited the library show. Hesaid the exhibit shows how hard his father worked.He said, "He always felt responsible for being where the action was. A lot of writers just retire totheir rooms and describe their childhood. He didn't do that."The Kennedy Library holds the world's largest collection of documents, photographs and personalbelongings of the famous writer. Library Curator Stacey Bredhoff describes the Hemingwaycollection as one of the library's "greatest treasures."The show is called "Ernest Hemingway: Between Two Wars." It includes material rarely shown inpublic. The Morgan Library & Museum in New York City also presented the showlast autumn.Hemingway and Kennedy never met. However, Kennedy liked the writer’s work. Kennedy wrote toHemingway for permission to use the novelist’s expression "grace under pressure." Hemingwaywas too sick to accept an invitation to Kennedy’s inauguration in January of 1961. The writer killedhimself later that year.The show also includes Hemingway's first short story. It was published in 1917 in a high schoolmagazine. Visitors can also see letters between Hemingway and other writers at the time.Patrick Hemingway praised the show. "I am very pleased that they were able to put together in mylifetime a very comprehensive picture of a person who really represented very well the first half of the 20th century,'' he said.Ernest Hemingway fled Finca Vigia, his home in Cuba, at the time of Fidel Castro's revolution. Thewriter left much of all he owned on the island.After the writer died, President Kennedy sought Cuba’s permission for Hemingway's wife, Mary, tovisit the island and collect the belongings. A fishing boat transported the property from Havana toFlorida.Mary Hemingway established a relationship with Kennedy’s wife, Jacqueline, after PresidentKennedy was murdered in 1963. They later decided to keep the writer’s Cuba collection at theKennedy library.Patrick Hemingway now lives in Bozeman, Montana. But he is represented in the show. Aphotograph shows him and hisfather on a deep sea fishing boat. Fishing was one of ErnestHemingway's great loves."He worked very hard in the morning but he never worked in the afternoon. He had a great life,''Patrick Hemingway said of his father.Words in This Storynovelist – n. a writer of fiction bookscurator – n. a person who is in charge of the things in a museum, zoo, etcgrace – n. a controlled, polite, and pleasant way of behavingdraft ­– n. a version of something (such as a document) that you make before you make the finalversionstationery ­– n. paper that is used for writing letters and that usually has matching envelopescomprehensive – adj. including many, most, or all things。
2019年12月英语四级真题第一套含听力原文及答案
2019年12⽉英语四级真题第⼀套含听⼒原⽂及答案2019年12⽉英语四级真题第⼀套(含听⼒原⽂及答案)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 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 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 Ⅱ Reading Comprehension (40 minutes)Section ADirections:In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.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 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 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 21degrees 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 Vann Newkirk reported, Puerto Rico is still confronting economic and structural destruction and resource scarcity from 2017’s Hurricane 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. 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’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 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 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 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 Swigart told me, “because we’re in literally every community in this country … We’re obligated to deliver 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 $1 million in cash and transportation support for Hurricanes Florence and Michael. UPS’s charitable arm, the UPS Foundation, uses the company’s logistics to help disaster-struck areas rebuild.“We realize that as a company with people, trucks, warehouses, we needed to play a larger role,” said Eduardo Martinez, the president of the UPS Foundation. The company employs its trucks and planes to deliver food, medicine, and water. The day before I spoke to Martinez in November, he had been touring the damage from Hurricane Michael in Florida with the American Red Cross. “We have an obligation to make sure our communities are thriving, prosperous,” he said.[K] Rebuilding can take a long time, and even then, impressions of the disaster may still remain. Returning to a sense of normalcy can be difficult, but some small routines—mail delivery being one of them—may help residents remember that their communities are still their communities. “When they see that carrier back out on the street,” Swigart said, “that’s the first sign to them that life is starting to return to normal.”36. The United States Postal Service has a system to ensure its employees’ safety.37. One official says USPS is unique in that it has more direct reach to communities compared with other federal agencies38. Natural disasters can have a long-lasting impact on community life.39. Mail delivery service i$ 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 Goel 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 engaging, 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 Sch?fer 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/doc/828a3afe4228915f804d2b160b4e767f5acf80bc.html ,/doc/828a3afe4228915f804d2b160b4e767f5acf80bc.html , and/doc/828a3afe4228915f804d2b160b4e767f5acf80bc.html 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 success, most 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 researchers’ 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 Sch?fer’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 Ⅱ Translation (30 minutes) Directions:For this part, you are allowed 30 minutes to translate a passage from Chinese into English. Youshould write your answer on Answer Sheet 2.中国家庭⼗分重视孩⼦的教育。
2019年12月英语四级听力真题详解
2019年12月英语四级听力真题详解Part IIListening Comprehension(30 minutes)News 1【1】A device that weighs less than one kilogram is part of a mission thatwill allow scientists to deliver fourth generation or 4G mobile coverage to themoon in 2019. If successful, the tiny device will provide the moon with itsfirst ever mobile phone network. The lunar network will support high definitionstreaming of video and data between the moon and earth. The network is part of amission to the moon. This is a project with the goal of landing the firstprivately paid for mission to the moon. The 4G mission is set to launch fromCape Canaveral in the United States on a space X Falcon 9 rocket in 2019.Mission to the moon intends to establish and test the first elements of acommunications network on the moon. The scientists working on the project optedto build a 4G rather than a fifth generation or 5G network.【2】This is becausefifth generation networks are still in testing and trial phases.This means thata 5G network may not yet be stable enough to work on the moon‘s surfaceQuestion 1:What are scientists planning to do?Question 2:Why did scientists choose to set up a 4G network in theirmission?News 2It‘s responded to a fire Wednesday night at an abandoned mall in Heywood.The fire was reported at 9:26 pm at an old shopping center on Michigan Avenuenear St. Mary’s Church. Six fire engines, two trucks and two chiefs responded tothe scene. Crews had the fire under control in about 45 minutes and managed tocontain the fire to its point of origin.【3】There were some people inside thebuilding when the fire broke out but there were no reports of any injuries. Fireinvestigators have responded to the scene but have not yet determined the causeof the fire. Firefighters will remain on the scene untillater this morning toensure that the fire doesn‘t start up again. The shopping mall had not been inuse since 2002.【4】In 2014 City Hall developed a plan to knock down the buildingand replace it with affordable housing. However the plan was dropped due to lackof funds.Question 3:What does the news item say about the fire?Question4:What had City Hall planned to do?News 3【5】Potato chips in Japan are being sold for 6X their normal price.This isafter th e country‘s main manufacturer stopped sales due to a potato shortage.Storms and floods and its main potato growing region last year caused the worstharvest and more than 3 decades. Local media reports suggest Calbee and its mainrival Koike-ya are haltin g almost 50 products.“We don‘t know when we’ll be able。
2019年12月英语四级试卷及答案
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。
2019年英语四级听力答案
2019年英语四级听力答案2019年英语四级考试是中国大陆地区大学生必备的英语考试之一。
听力部分是四级考试中的重点部分之一,而且对于许多考生来说,听力部分是最难的。
本文将为大家提供2019年英语四级听力部分的答案。
听力部分一共分为四个部分,即短对话听力、长对话听力、短文理解听力和复合式听力。
下面将分别给出这些部分的答案。
短对话听力的答案1. B2. C3. A4. B5. A长对话听力的答案6. B7. C8. A19. B10. C短文理解听力的答案11. C12. A13. B14. C15. B16. A17. C18. B19. A20. C复合式听力的答案21. A22. B23. C24. B225. A26. C27. A28. C29. B30. A以上就是2019年英语四级听力部分的答案。
希望以上内容对大家有所帮助。
在备考过程中,多进行听力练习是非常重要的。
可以通过听英语广播、看英语电影或者参加英语角等方式提升听力水平。
同时,也要多参加模拟测试,熟悉四级听力考试的题型和考点,提高答题的准确性和速度。
另外,在听力考试过程中,需要注意一些技巧。
比如,仔细阅读题目,理解问题的意思;注意关键词,可以帮助快速定位答案的信息;同时,可以通过略读、预测等方法提高答题效率。
总的来说,听力部分是英语四级考试中的重点和难点之一。
但是通过多加练习和掌握一些技巧,相信大家一定可以在2019年英语四级听力部分取得不错的成绩。
祝愿大家顺利通过四级考试!3。
2019年12月大学英语四级真题试卷及答案(三套全)
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月英语四级听力真题及答案
2019年12月英语四级听力真题及答案Section A11. A. Read the notice on the window B. Get a new bus scheduleC. Go and ask the staffD. Board the bus to Cleveland12. A. He was looking forward to seeing the giraffes.B. He enjoyed watching the animal performance.C. He got home too late to see the TV specialD. He fell asleep in the middle of the TV program.13. A. She wants to take the most direct way.B. She may be late for the football game.C. She is worried about missing her flight.D. She is currently caught in a traffic jam.14. A. At a restaurant B. In a fish shop C. At a clinic D. On a fishing boat15. A. He is an experienced sales manager.B. He is being interviewed for a job.C. He is a close friend of the woman.D. He is good at answering tricky questions.16. A. The man should consider his privacy first.B. The man will choose a low-rent apartment.C. The man is not certain if he can find a quieter placeD. The man is unlikely to move out of the dormitory.17. A. The woman is going to make her topic more focused.B. The man and woman are working on a joint project.C. One should choose a broad topic for a research paper.D. It tool a lot of time to get the man on the right track.18. A. They went camping this time last year.B. They d idn’t quite enjoy their last picnic.C. They learned to cooperate under harsh conditions.D. They weren’t experienced in organizing picnics.Questions 19 to 22 are based on the conversation you have just heard.19. A. H e likes Sweden better than England.B. He prefers hot weather to cold weather.C. He is an Englishman living in Sweden.D. He visits London nearly every winter.20. A. The bad weather B. The gloomy winter C. The cold houses D. The long night21. A. Delightful B. Painful C. Depressing D. Refreshing22. A. They often stay up late reading B. They work hard and play hardC. They like to go camping in summerD. They try to earn more and spend moreQuestions 23 to 25 are based on the conversation you have just heard.23. A. English Literature B. Management C. French D. Public Administration24. A. English teaching B. Staff trainingC. Careers guidanceD. Psychological counseling25. A. Its generous scholarships B. Its worldwide fameC. Its well-designed coursesD. Its pleasant environment参考答案Go and ask the staff。
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2019年12月大学英语四级听力VOA慢速英语(10)
LOS ANGELES—
After 25 years of marriage and five children, Maria Elena and Rene Burgos of Los Angeles have become a unified force on many things, including decisions on Election Day.
“Mostly we discuss and we agree and then we usually mark our ballots together, and we start marking together, and we decide together. We try to support each other,” said Maria Elena Burgos.
“We discuss it with the family, too, now that we have the gr ownup kids,” Rene Burgos said.
All born in the United States, four of the Burgoses' children are old enough to vote in the 2016 presidential election. It will be 18-year-old Monica Burgos’ first presidential election. She said it’s the issues, including immigration, that will help her pick the best candidate.
“Immigration is serious because people are always crossing the border. They’re always trying to come to America for a better life, and that’s what my parents did,” she said.
Maria Elena Burgos’ mother was American, which allowed her to get U.S. citizenship. Rene Burgos escaped the civil war in El Salvador and arrived in the U.S. as an undocumented immigrant. Under the Regan administration, he received amnesty and ultimately citizenship.
“So after I became a citizen and I was able to exercise [my right to vote], I said I have the duty to do it and I was really happy to be able to participate," he said. "I think coming from another country to the United States and seeing that you can participat e, it is a great opportunity.”
“When you come from a country where sometimes you do
not have the rights or the voice, having that opportunity
here makes a difference,” said Maria Elena Burgos.
That commitment was passed down to their children, including Stephen, 22.
“Our parents always encourage us to vote, to be able to be the voice for change,” he said.
Latino vote
The belief that a vote still matters is what motivates many naturalized immigrants and their children to try and be the most en gaged Latinos in American politics. They don’t
take the vote for granted, said Arturo Vargas, executive director of the National Association of Latino Elected and Appointed Officials' Educational Fund.
“The immigrant voter, the naturalized citizen and h is
or her children, the children of immigrants are the most engaged in American politics," Vargas said. "They are
following politics very, very closely. Those that we need to bring into the process are those that have been here for four, five, six generations: Mexican-Americans that speak English only because that’s the only language they know. [It’s] the same thing with Puerto Ricans and Latinos of other national
origin groups who, unfortunately, many of them have lost
faith in the American political syste m.”
For many Latinos, the issue of immigration has become a litmus test for a candidate.
“How a candidate talks about immigrants is symbolic of how that candidate then appears towards Latinos," Vargas said. "So if a candidate is bashing immigrants, Latinos hear that
as bashing Latinos. So how a candidate talks about
immigration is even more important than what the candidate
has to say about immigration policy.”
While a large number of Latinos identify themselves as Democrats, Vargas said the fastest-growing party affiliation
of Latinos is either “declined to state” or “independent.”
Choosing a candidate
Members of the Burgos family have not decided which presidential candidate they will vote for, but that person needs to share their values, said Martin Burgos, 20.
“Since we’re practicing Roman Catholics, we’ll talk about abortion especially. That’s one of the major topics,” he said.
Maria Elena Burgos said she knows there is no perfect candidate.
“We have to just balance and see which one is the least evil and which is the one that we would be more happy with, even though it’s not perfect. No person, no party, no
decision will be 100 percent perfect,” she said.。