2017 西南交大学英语Ⅳ在线作业一参考答案
2017年大学英语四级(CET-4)真题试卷及答案1
2017年大学英语四级(CET-4)真题试卷及答案Part I Listening Comprehension (20 minutes)Section ADirections: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both theconversation and the question will be spoken only once. After eachquestion there will be pause. During the pause, you must read the fourchoices marked A), B), C) and D), and decide which is the best answer.Then mark the corresponding letter on the Answer Sheet with a linethrough the centre.Example:You will hear:You will read:A) At the office.B) In the waiting room.C) At the airport.D) In a restaurant.From the conversation we know that the two were talking about some work they had to finish in the evening. This is most likely to have taken place at the office. There fore, A) “At the office” is the best answer. You should choose [A] on the Answer Sheet and mark it with a single line through the centre.Sample Answer [A] [B] [C] [D]1. A) He lent her his extra pen.B) He was afraid of losing his pen.C) He offered her a pencil.D) He said he didn’t have any extra ink.2. A) The teacher reviewed a previous lesson.B) The teacher taught a new lesson.C) The teacher postponed the class until Friday.D) The teacher made the students write in class.3. A) It’s going to attract a lot of students.B) It’s going to be a lot of fun.C) It’s going to require a lot of reading.D) I t’s going to work out quite well.4. A) She agrees to lend him the car.B) She offers him the car.C) She refuses to lend him the car.D) She is pleased to lend him the car.5. A) To the beach.B) To a movie theatre.C) To a play.D) To a restaurant.6. A) Policeman and driver.B) Policeman and thief.C) Teacher and pupil.D) Director and actress.7. A) He is often late for meals.B) He is expecting a letter from abroad.C) He wrote to his family last month.D) He is anxious to go back home.8. A) He is modest.B) He is satisfied.C) He is proud.D) He is upset.9. A) Europe.B) Here.C) Canada.D) California.10. A) The train is crowded.B) The train is late.C) The train is on time.D) The train is out of order.Section BDirections: In this section, you will hear 3 short passages. At the end of each passage,you will hear some questions. Both the passage and the questions will bespoken only once. After you hear a question, you must choose the bestanswer from the four choices marked A), B), C) and D). Then mark thecorresponding letter on the Answer Sheet with a single line through thecentre.Passage OneQuestions 11 to 13 are based on the passage you have just heard.11. A) The crust.B) The ground.C) The plate.D) The boundary.12. A) Two.B) Seventy.C) Seven.D) Twelve.13. A) The east coast of North America.B) The west coast of North America.C) The middle of the Atlantic Ocean.D) The middle of the Pacific Ocean.Passage TwoQuestions 14 to 16 are based on the passage you have just heard.14. A) They want to attract attention.B) It is fashionable to wear such clothes.C) The appear respectable in such clothes.D) Riding a motorcycle makes one dirty.15. A) It is efficient.B) It is exciting.C) It is convenient.D) It is dangerous.16. A) If he always wears protective clothing.B) If he can see everything around him clearly.C) If he is very careful.D) If he has a lot of defenders.Passage ThreeQuestions 17 to 20 are based on the passage you have just heard.17. A) He was struck by lightning.B) He had a car accident.C) He was very old.D) He fell down in his yard.18. A) His wife.B) A clock.C) A tree.D) Lightning.19. A) Hiding under a tree.B) Entering the house.C) Driving a car.D) Lying on the ground.20. A) A fall from the tree.B) The unexpected return of his wife.C) Another flash of lightning.D) Another heavy blow.Part II Reading Comprehension (35 minutes)Directions: There are 4 reading passages in this part. 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 choice andmark the corresponding letter on the Answer Sheet with a single linethrough the centre.Passage OneQuestions 21 to 25 are based on the following passage.More than 30,000 drivers and front seat passengers are killed or seriously injured each year. At the speed of only 30 miles per hour it is the same as falling from a third-floor windows. Wearing a seat belt saves lives; it reduces your chance of death or serious injury by more than half.Therefore drivers or front seat passengers over 14 in most vehicles must wear a seat belt. If you do not, you could be fined up to ￡50. it will not be up to the drivers to make sure you wear your belt. But it will be the driver’s responsibility to make sure that children under 14 do not ride in the front unless they are wearing a seat belt of some kind.However, you do not have to wear a seat belt if you reversing your vehicle; or you are making a local delivery or collection using a special vehicle; or if you have a valid medical certificate which excuses you from wearing it. Make sure these circumstances apply to you before you decide not to wear you seat belt. Remember you may be taken to court for not doing so, and you may be fined if you cannot prove to the court that you have been excused from wearing it.21. This text is taken from ________.A) a medical magazineB) a police reportC) a legal documentD) a government information booklet22. Wearing a seat belt in a vehicle ________.A) reduces road accidents by more than halfB) saves lives while driving at a speed up to 30 miles per hourC) reduces the death rate in traffic accidentsD) saves more than 15,000 lives each year23. It is the driver’s responsibility to ________.A) make the front seat passenger wear a seat beltB) make the front seat children under 14 wear a seat beltC) stop children riding in the front seatD) wear a seat belt each time he drives24. According to the text, which of the following people riding in the front dos not haveto wear a seat belt?A) Someone who is backing into a parking space.B) Someone who is picking up the children from the local school.C) Someone who is delivering invitation letters.D) Someone who is under 14.25. For some people, it may be better ________.A) to wear a seat belt for health reasonsB) not to wear a seat belt for health reasonsC) to get valid medical certificate before wearing a seat beltD) to pay a fine rather than wear a seat beltPassage TwoQuestions 26 to 30 are based on the following passage.If you want to stay young, sit down and have a good think. This is the research finding of a team of Japanese doctors, who say that most of our brains are not getting enough exercise—and as a result, we are ageing unnecessarily soon.Professor Taiju Matsuzawa wanted to find out why otherwise healthy farmers in northern Japan appeared to be losing their ability to think and reason at a relatively early age, and how the process of ageing could be slowed down.With a team of colleagues at Tokyo National University, he set about measuring brain volumes of a thousand people of different ages and varying occupations.Computer technology enabled the researchers to obtain precise measurements of the volume of the front and side sections of the brain, which relate to intellect (智能) and emotion, and determine the human character. (The rear section of the brain, which controls functions like eating and breathing, does not contract with age, and one can continue living without intellectual or emotional faculties.)Contraction of front and side parts—as cells die off—was observed I some subjects in their thirties, but it was still not evident in some sixty- and seventy-year-olds.Matsuzawa concluded from his tests that there is a simple remedy to the contraction normally associated with age—using the head.The findings show in general terms that contraction of the brain begins sooner in people in the country than in the towns. Those least at risk, says Matsuzawa, are lawyers, followed by university professors and doctors. White collar workers doing routine work in government offices are, however, as likely to have shrinking brains as the farm worker, bus driver and shop assistant.Matsuzawa’s findings show that thinking can prevent the brain from shrinking. Blood must circulate properly in the head to supply the fresh oxygen the brain cells need. “The best way to maintain good blood circulation is through using the brain,” he says, “Think hard and engage in conversation. Don’t rely on pocket calculators.”26. The team of doctors wanted to find out ________.A) why certain people age sooner than othersB) how to make people live longerC) the size of certain people’s brainsD) which people are most intelligent27. On what are their research findings based?A) A survey of farmers in northern Japan.B) Tests performed on a thousand old people.C) The study of brain volumes of different peopleD) The latest development of computer technology.28. The doctor’s test show that ________.A) our brains shrink as we grow olderB) the front section of the brain does not shrinkC) sixty-year-olds have the better brains than thirty-year-oldsD) some people’s brains have contracted more than other people’s29. The word “subjects” in Paragraph 5means ________.A) something to be consideredB) branches of knowledge studiedC) persons chosen to be studied in an experimentD) any member of a state except the supreme ruler30. According to the passage, which people seem to age slower than the others?A) Lawyers.B) Farmers.C) Clerks.D) Shop assistants.Passage ThreeQuestions 31 to 35 are based on the following passage.On June 17, 1744, the officials from Maryland and Virginia held a talk with the Indians of the Six Nations. The Indians were invited to send boys to William and Mary College. In a letter the next day the refused the offer as follows:We know that you have a high opinion of the kind of learning taught in your colleges, and that the costs of living of our young men, while with you, would be very expensive to you. We are convinced that you mean to do us good by your proposal; and we thank you heartily. But you must know that different nations have different ways of looking at things, and you will therefore not be offended if your ideas of this kind of education happen not t be the same as yours. We have had some experience of it. Several of our young people were formerly brought up at the colleges of the northern provinces: they were taught all your sciences; but, when they came back to us, they were bad runners, ignorant of every means of living in the woods…they were totally good for nothing.We are, however, not the less obliged by your kind offer, though we refuse to accept it; and, to show our grateful sense of it, if the gentlemen of Virginia will send up a dozenof their sons, we will take care of their education, teach them in all we know, and make men of them.31. The passage is about ________.A) the talk between the Indians and the officialsB) the colleges of northern provincesC) the educational values of the IndiansD) the problems of the Americans in the mid-eighteenth century32. The Indians’ chief purpose in writing the letter seems to be to ________.A) politely refuse a friendly offerB) express their opinion on equal treatmentC) show their prideD) describe Indian customs33. According to the letter, the Indians believed that ________.A) it would be better for their boys to receive some schoolingB) they were being insulted by the offerC) they knew more about science than the officialsD) they had a better way of educating young men34. Different from the officials’ view of education, the Indians though ________.A) young women should also be educatedB) they had different goals of educationC) they taught different branches of scienceD) they should teach the sons of the officials first35. The tone of the letter as a whole is best described as ________.A) angryB) pleasantC) politeD) inquiringPassage FourQuestions 36 to 40 are based on the following passage.In what now seems like the prehistoric times of computer history, the earth’s postwar era, there was quite a wide-spread concern that computers would take over the world from man one day. Already today, less than forty years later, as computers arerelieving us of more and more of the routine tasks in business and in our personal lives, we are faced with a less dramatic but also less foreseen problem. People tend to be over-trusting of computers and are reluctant to challenge their authority. Indeed, they behave as if they were hardly aware that wrong buttons may be pushed, or that a computer may simply malfunction (失误).Obviously, there would be no point in investing in a computer if you had to check all its answers, but people should also rely on their own internal computers and check the machine when they have the feeling that something has gone wrong.Questioning and routine double-checks must continue to be as much a part of good business as they were in pre-computer days. Maybe each computer should come with the warning: for all the help this computer may provide, it should not be seen as a substitute for fundamental thinking and reasoning skills.36. What is the main purpose of this passage?A) To look back to the early days of computers.B) To explain what technical problems may occur with computers.C) To discourage unnecessary investment in computers.D) To warn against a mentally lazy attitude towards computers.37. According to the passage, the initial concern about computers was that they might________.A) change our personal livesB) take control of the worldC) create unforeseen problemsD) affect our businesses38. The passage recommends those dealing with computers to ________.A) be reasonably doubtful about themB) check all their answersC) substitute them for basic thinkingD) use them for business purposes only39. The passage suggests that the present-day problem with regard to computers is________.A) challengingB) psychologicalC) dramaticD) fundamental40. It can be inferred from the passage that the author would disapprove of ________.A) investment in computersB) the use of on e’s internal computerC) double-check on computersD) complete dependence on computers for decision-makingPart III Vocabulary and Structure (20 minutes)Directions: There are 30 incomplete sentences in this part. For each sentence there are four Choices marked A), B), C) and D). Choose the ONE that bestcompletes the sentence. Then mark the corresponding letter on the AnswerSheet with a single time through the centre.41. Mary’s score on the test is the highest in her class; she ________ have studied veryhard.A) mayB) shouldC) mustD) ought to42. ________ that the trade between the two countries reached its highest point.A) During the 1960’sB) It was in the 1960’sC) That it was in the 1960’sD) It was the 1960’s43. He suggested ________ to tomorrow’s exhibition together.A) us to goB) we wentC) we shall goD) we go44. No agreement was reached in the discussion as neither side would give way to________.A) the otherB) any otherC) anotherD) other45. With agreement was reached I the discussion as neither side would give way to________.A) mustn’t goB) would n’t goC) oughtn’t to goD) shouldn’t have gone46. If you want ________ you have to get the fund somewhere.A) that the job is doneB) the job doneC) to have done the jobD) the job that is don47. There is more land in Australia than the government knows ________.A) what to do withB) how to doC) to do with itD) to do it48. It’s no use ________ me not to worry.A) you tellB) your tellingC) for you to have toldD) having told49. I have two boys but ________ of them likes sweets.A) bothB) neitherC) eitherD) none50. Only by shouting at the top of his voice ________.A) was he able to make himself hearB) he was able to make himself hearC) he was able to make himself heardD) was he able to make himself heard51. ________ such a good chance, he planned to learn more.A) To be givenB) Having been givenC) Having givenD) Giving52. If it ________ too much trouble, I’d love a cup of tea.A) isn’tB) wasn’tC) weren’tD) hadn’t been53. My sister’s professor had her ________ her paper many times before allowing herto present it to the committee.A) rewrittenB) to rewriteC) rewriteD) rewriting54. silver is the best conductor of electricity, copper ________ it closely.A) followedB) followingC) to followD) being followed55. They are considering ________ before the prices go up.A) of buying the houseB) with buying the houseC) buying the houseD) to buy the house56. She was glad that her success would ________ for the women who would follow.A) make things easierB) make it easierC) be easierD) be easier to make57. They will have it finished in ________.A) three quarter of an hour timeB) three quarters of an hour timeC) three quarter of an hour’s timeD) three quarters of an hour’s time58. A Dream of the Red Chamber is said ________ into dozens of languages in the lastdecade.A) to have been translatedB) to translateC) to be translatedD) to have translated59. He went ahead ________ all warnings about the danger of his mission.A) in case ofB) because ofC) regardless ofD) prior to60. We object ________ punishing a whole group for one person’s fault.A) againstB) aboutC) toD) or61. Jack is good, kind, hard-working and intelligent; ________; I can’t speak too highlyof him.A) as a resultB) in a wordC) by the wayD) on the contrary62. The man to whom we handed the forms pointed out that they had not been________ filled in.A) consequentlyB) regularlyC) comprehensivelyD) properly63. I shall have companion in the house after all these ________ years.A) singleB) soleC) aloneD) lonely64. After a long and exhausting journey, they arrived ________.A) till the lastB) at lastC) by the endD) at the end65. None of the servants were ________ when Mr. Smith wanted to send a message.A) availableB) attainableC) approachableD) applicable66. I can’t ________ what that object is.A) make upB) make overC) make outD) make for67. I want to buy a new tie to ________ this brown suit.A) go intoB) go afterC) go withD) go by68. The newest satellite can ________ a thousand telephone conversations and a colourTV program at the same time.A) carryB) extendC) bringD) take69. I can ________ some noise while I’m studying, but I can’t stand loud noises.A) come up withB) catch up withC) put up withD) keep up with70. When the whole area was ________ by the flood, the government sent food there byhelicopter.A) cut awayB) cut downC) cut upD) cut offPart IV Cloze (15 minutes)Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A), B), C) and D) on the right side of the paper. You shouldchoose the ONE that best fits into the passage. Then mark thecorresponding letter on the Answer Sheet with a single line through thecentre.In recent years, more and more foreigners are involved in the teaching programs of the United States. Both the advantages and the disadvantages __71__ using faculty (教师[总称]) from foreign countries __72__ teaching positions have to be __73__, of course. It can be said that foreign __74__ that makes the faculty member from abroad an asset (财富) also __75__ problems of adjustment, both for the university and for the individual.The foreign research scholar usually isolates __76__ in the laboratory as a means of protection; __77__, what he needs is to be fitted __78__ a highly organized universityHe is faced in his daily work __80__and methods of teaching. Both thein each other’s cultures. Some __82__ of what is already in the minds of American students is __83__ by the foreignto __86__ full advantage of what thet always known how to make __88__ use of foreign faculty,to be a __89__ where further study isB) forC) ofD) at72. A) inB) onC) forD) within73. A) thoughtB) measuredC) balancedD) considered74. A) situationB) circumstanceC) backgroundD) condition75. A) carriesB) createsC) emergesD) solves76. A) himselfB) oneselfC) himD) one77. A) otherwiseB) moreoverC) howeverD) also78. A) intoB) byC) toD) with79. A) thoseB) whichC) whatD) that80. A) towardB) withC) toD) at81. A) haveB) possessC) needD) lack82. A) conceptB) feelingC) planD) intelligence83. A) orderedB) askedC) insistedD) required84. A) placeB) adaptC) putD) direct85. A) remainB) keepC) makeD) cause86. A) takeB) makeC) doD) be87. A) showB) affordC) expressD) offer88. A) powerfulB) creativeC) imaginaryD) advanced89. A) scopeB) rangeC) fieldD) district90. A) onB) forC) uponD) at2017四级参考答案Part I。
西南交通大学网络教育学院《大学英语IV》第一次网络作业
西南交通大学网络教育学院《大学英语IV》第一次网络作业本次作业是本门课程本学期的第1次作业，注释如下：大学英语IV 第1单元作业题一、单项选择题(只有一个选项正确，共40道小题)1. – David, I got an A in Accounting!–_________________________(A) I was surprised to hear the news.(B) Are you kidding?(C) That’s a pity.(D) Congratulations!你选择的答案：[前面作业中已经做正确] [正确]正确答案：D解答参考：[第一单元]D 当得知他人在考试中取得好成绩时，首先应向对方表示祝贺，故D项为正确答案。
A，B，C三个选项都不符合礼貌习惯。
2. – How do you think of this test?–_________________________(A) I got 85.(B) Good luck.(C) It’s a piece of cake.(D) Don’t worry about it.你选择的答案：[前面作业中已经做正确] [正确]正确答案：C解答参考：[第一单元]C 该题题干是询问对方对于考试的看法，“a piece of cake”表示“容易的事，小菜一碟”，说明回答者认为此次考试很容易，因此只有选项C符合上下文语境。
3. –Do you like Professor Zhang’s classes?–_________________________(A) I never miss her class.(B) Chemistry is difficult to study.(C) I take a course in Chemistry.(D) Professor Zhang is a strict teacher.你选择的答案：[前面作业中已经做正确] [正确]正确答案：A解答参考：[第一单元]A 说话者询问对方是否喜欢上张教授的课，选项A的言外之意是回答者十分喜欢教授的课因而从不缺席，故选A，其它三个选项不合题意。
西南交大《大学英语IV》主观题作文高分答案
《大学英语IV》第1次作业41.Directions: For this part, you are allowed thirty minutes to write a composition on the topic “My Ideal Job”. You should write no less than 100 words.My ideal job is to be able to work this morning, 9:00, 5:00 pm from work, there is a bright and spacious office, there is a beautiful female secretary, wages 20,000 yuan, from time to time and then sent some incentive shuttle bus to and from workthe weekend to rest without overtime, and can be paid leave, five insurance payments, on the whole, God, I'm not dreaming.《大学英语IV》第2次作业41.Directions: For this part, you are allowed thirty minutes to write a composition on the topic “My Favorite Means of Getting Information”. You should write no less than 100 words.My favorite means of access to information on the network, the network information very broad coverage, has a collection of all walks of life, the search method is very simple, with a computer can sit at home, do not have to run between the Library. But the search also requires skill, such as keywords, search keywords is incorrect, it will affect the search results.。
西交《英语4(新录)》在线作业
西交《英语4(新录)》在线作业试卷总分：100? ? ? ?测试时间：--•一、单选题（共?50?道试题，共?100?分。
）1.??The national flag of the United States is the Stars and the ( ).A. SlicesB. StringsC. StripsD. Stripes??????满分：2??分2.??The intelligence department was accused of failure to ( ) the troops to the possibility of anenemy attack during the weekend.A. instructB. warnC. dictateD. alert??????满分：2??分3.??Obviously, no teacher has ( )patience. Even Larry, who is always kind and tolerant, losthis temper on that particular occasion.A. infiniteB. definiteC. spectacularD. plural??????满分：2??分4.??As a reporter, I was paid to ( ) into other people's lives.A. pryB. convertC. blurtD. carve??????满分：2??分5.??Once Mr. Green ( ) you in conversation, you're stuck with him for at least an hour.A. submergesB. engagesC. occupiesD. launches??????满分：2??分6.??Don't let his criticism ( ) you; he belongs to the kind of people who take delight in findingfault with other's work.A. discourageB. concernC. dictateD. paralyze??????满分：2??分7.??The offer of a free overseas tour ( ) him into buying the villa on the hillside.A. discouragedB. committedC. temptedD. tangled??????满分：2??分8.??Everyone else was killed in the accident. I was the only to ( ).A. aliveB. outliveC. surviveD. relive??????满分：2??分9.??The talks might ( ) for weeks before any concrete result is announced.A. press onB. drag onC. get boggedD. hold out??????满分：2??分10.??Our director had ( ) on the matter for a long time before he made the decision.A. hushedB. thrashedC. ponderedD. suspended??????满分：2??分11.??He was healthy ( ) and ( ) .A. physical, mentalB. physically, mentallyC. body, mindD. bodily, mindedly??????满分：2??分12.??People under a lot of ( ) may experience headaches, minor pains and sleepingdifficulties.A. stressB. exposureC. enduranceD. endeavor??????满分：2??分13.??The weather wasn't favorable and both teams had to ( ) icy rain and a strong wind duringthe match.A. pin downB. contend withC. get stuck inD. take control of??????满分：2??分14.??We need someone really ( ) who can organize the office and make it run smoothly.A. crucialB. realisticC. essentialD. efficient??????满分：2??分15.??Dr. Light, who is ( ) to be one of the best surgeons in London, performed the operationand successfully removed the tumor in her lungs.A. confessedB. thrilledC. perceivedD. reputed??????满分：2??分16.??In today's working world the roles of men and women are becoming ( ).A. dwarfedB. incorporatedC. correlatedD. blurred??????满分：2??分17.??"Have you any ( )plans for your future now that you've completed your graduatestudies?"A. decisiveB. exactC. preciseD. definite??????满分：2??分18.??The car, at least as we know it, is on the way out, because its exhaust ( ) a threat to theenvironment.A. originatesB. posesC. offendsD. paralyzes??????满分：2??分19.??The destruction of the Twin Towers in New York City ( ) shock and anger throughout theworld.A. summonedB. temptedC. provokedD. enveloped??????满分：2??分20.??The ball was ( ) out of his grasp by a player on the other team.A. wrenchedB. contestedC. interruptedD. sucked??????满分：2??分21.??The survey found 80 percent of viewers were ( ) by he violent scenes in the film.A. eliminatedB. alertedC. offendedD. discouraged??????满分：2??分22.??The plants are in a(n) ( ) plastic box, so the children can observe how the roots grow withtime.A. appropriateB. intricateC. transparentD. waterproof??????满分：2??分23.??Whether you go or not does not ( ) .A. make a differenceB. make differenceC. make differentD. make differences??????满分：2??分24.??He should ( ) what he's good at, and no switch to something he knows nothing about.A. take onB. stick toC. go afterD. live on??????满分：2??分25.??AIDS activists permanently changed and shortened America's ( ) process for testing andapproving new drugs of all kinds, for all disease.A. efficientB. stagnantC. intricateD. appropriate??????满分：2??分26.??Some of the tunnels in the cliff are natural, some were ( ) out.A. carvedB. priedC. penetratedD. decorated??????满分：2??分27.??At night, cars often ( ) small animals that are blinded by the headlights.A. run overB. held upC. took apartD. drove at??????满分：2??分28.??George ( ) an agonizing 48-hour wait for the result of the tests.A. underwentB. withstoodC. undertookD. grilled??????满分：2??分29.??( ) her son's expert driving, she got to the support on time, despite the heavy rain.A. Due toB. Thanks toC. Owing toD. On account of??????满分：2??分30.??The Israeli troops ( )by launching a bombing attack on the Palestinian-controlled areas.A. had a crackB. took a tollC. took revengeD. followed up??????满分：2??分31.??People from different cultures have different ( ) of the world.A. impressionsB. complicationsC. foundationsD. conceptions??????满分：2??分32.??The doctor ( ) Billy's operation with x-rays and special exercises to make him stronger.A. went afterB. followed upC. started upD. took on??????满分：2??分33.??Anyone caught ( ) an offense will be punished.A. committingB. conductingC. executingD. performing34.??He hated wandering about and expected to find a ( ) position in the Civil Service ofgovernment.A. permissiveB. perceptiveC. permanentD. perpetual??????满分：2??分35.??This course focuses on the ( )of economic analysis to the problems of inflation,unemployment, the balance of payments and enterprise behavior.A. conceptionB. combinationC. applicationD. introduction??????满分：2??分36.??Under normal circumstances the body can ( ) these naturally occurring substances intovitamins.A. convertB. renderC. deriveD. originate??????满分：2??分37.??He has already been living in China for twenty years, so it's possible for him to see thingsfrom the ( ) of a Chinese.A. perspectiveB. prospectiveC. perceptiveD. permissive38.??As he walked out of the court, he was ( ) with frustration and rage.A. applaudingB. quiveringC. paralyzingD. limping??????满分：2??分39.??The great influenza epidemic ( ) over 20 million dead.A. left aboutB. left behindC. left forD. left down??????满分：2??分40.??This disease ( ) in Africa but now spread to many parts of the world.A. derivedB. originatedC. sparkledD. dwelled??????满分：2??分41.??The aircraft base is protected with specially designed shelters which are built to ( )groundand air attacks.A. launchB. withstandC. contestD. contend??????满分：2??分42.??The mayor promised to trim the city budget without cutting ( ) services.A. essentialB. appropriateC. equivalentD. lucrative??????满分：2??分43.??I'm pleased to hear of your job offer-all that hard work at school has obviously ( ).A. paid offB. taken its tollC. make a differenceD. shown up??????满分：2??分44.??I will hold you personally ( ) if anything goes wrong in this project.A. destructiveB. lucrativeC. diverseD. responsible??????满分：2??分45.??Our postgraduate students are fully integrated into the departmental research ( ) and, inaddition, participate in the Postgraduate Education Programme.A. cooperationB. endeavorC. administrationD. network??????满分：2??分46.??There are still some ( ) for students of science and engineering, but those in arts andhumanities have been filled.A. positionsB. vacanciesC. categoriesD. applications??????满分：2??分47.??At the first ( ) of twelve all the workers in the factory stopped for lunch.A. hitB. strokeC. strikeD. blow??????满分：2??分48.??Due to his recent failure to meet the deadline, Jason is ( ) from the list for promotion.A. eliminatedB. retreatedC. priedD. wrenched??????满分：2??分49.??Now that we've got a loan from the bank, our project is financially ( ).A. constructiveB. feasibleC. favorableD. stiff??????满分：2??分50.??She tried to kick the pajamas loose, but they were ( ) in the satin sheet.A. gougedB. tangledC. scooped。
2017年12月大学英语四级考试真题与问题详解(三套全)
2017年12月大学英语四级考试真题及答案（第一套）Part I Writing （25 minutes）Directions: For this part, you are allowed 30 minutes to write a short easy on how to besthandle the relationship between doctors and patients. You should write at least120 words but no more than 180 words.Part II Listening Comprehension （25 minutes）Section ADirections: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 and 2 are based on the news report you have just heard.1. A) Her friend Erika. C) Her grandfather.B) Her little brother. D) Her grandmother.2. A) By taking pictures for passers-by. C) By selling lemonade and pictures.B) By working part time at a hospital. D) By asking for help on social media.Questions 3 and 4 are based on the news report you have just heard.3. A) Finding cheaper ways of highway construction.B) Generating electric power for passing vehicles.C) Providing clean energy to five million people.D) Testing the efficiency of the new solar panel.4. A) They can stand the wear and tear of natural elements.B) They can be laid right on top of existing highways.C) They are only about half an inch thick.D) They are made from cheap materials.Questions 5 to 7 are based on the news report you have just heard.5. A) Endless fighting in the region. C) Inadequate funding for research.B) The hazards from the desert. D) The lack of clues about the species.6. A) To observe the wildlife in the two national parks.B) To identify the reasons for the lions’ disappearance.C) To study the habitat of lions in Sudan and Ethiopia.D) To find evidence of the existence of the “lost lions”.7. A) Lions walking. C) Some camping facilities.B) Lions’ tracks. D) Traps set by local hunters.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 markedA), B), C), and D). Then mark the corresponding letter on Answer Sheet1 with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8. A) Her ‘lucky birthday’. C) Her wedding anniversary.B) A call from her dad. D) A special gift from the man.9. A) Gave her a big model plane. C) Took her on a trip overseas.B) Bought her a good necklace. D) Threw her a surprise party.10. A) The gift her husband has bought.B) The trip her husband has planned.C) What has been troubling her husband.D) What her husband and the man are up to.11. A) He will be glad to be a guide for the couple’s holiday trip.B) He will tell the women the secret if her husband agrees.C) He is eager to learn how the couple’s holiday turns out.D) He wants to find out about the couple’s holiday plan.Questions 12 to 15 are based on the conversation you have just heard.12. A) They are sensitive to the dynamics of a negotiation.B) They see the importance of making compromises.C) They know when to adopt a tough attitude.D) They take the rival’s attitude into account.13. A) They know how to adapt. C) They know when to make compromises.B) They know when to stop. D) They know how to control their emotion.14. A) They are patient. C) They learn quickly.B) They are good at expression. D) They uphold their principles.15. A) Make clear one's intentions. C) Formulate one's strategy.B) Clarify items of negotiation. D) Get to know the other side.Section CDirections: In this section, you will hear three passages. At the end of each passage, you willhear three or four questions. Both the passage and the questions will be spoken onlyonce. After you hear a question, you must choose the best answer from the fourchoices marked A), B), C), D). Then mark the corresponding letter on AnswerSheet 1 with a single line through the centre.Questions 16 to 18 are based on the passage you have just heard.16. A) When America's earliest space program started.B) When the International Space Station was built.C) How many space shuttle missions there will be.D) How space research benefits people on Earth.17. A) They accurately calculated the speed of the orbiting shuttles.B) They developed objects for astronauts to use in outer space.C) They tried to meet astronauts' specific requirements.D) They tried to make best use of the latest technology.18. A) They are extremely accurate. C) They were first made in space.B) They are expensive to make. D) They were invented in the 1970s.Questions 19 to 21 are based on the passage you have just heard.19. A) It was when her ancestors came to America.B) People had plenty of land to cultivate then.C) It marked the beginning of something new.D) Everything was natural and genuine then.20. A) They believed in working for goals. C) They had all kinds of entertainment.B) They enjoyed living a living a life of ease. D) They were known to be creative.21. A) Chatting with her ancestors. C) Polishing all the silver work.B) Furnishing her country house. D) Doing needlework by the fire.Questions 22 to 25 are based on the passage you have just heard.22. A) Use a map to identify your location. C) Sit down and try to calm yourself.B) Call your family or friends for help. D) Try to follow your footprints back.23. A) You may find a way out without your knowing it.B) You may expose yourself to unexpected dangers.C) You may get drowned in a sudden flood.D) You may end up entering a wonderland.24. A) Look for food. C) Start a fire.B) Wait patiently. D) Walk uphill.25. A) Inform somebody of your plan. C) Check the local weather.B) Prepare enough food and drink. D) Find a map and a compass.Part Ⅲ Reading Comprehension ( 40 minutes )Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet2 with a single line through the centre. You may not use any of the words in the bank more than once.A rat or pigeon might not be the obvious choice to tend to someone who is sick, but these creatures have some 26 skills that could help the treatment of human diseases.Pigeons are often seen as dirty birds and an urban 27 , but they are just the latest in a long line of animals that have been found to have abilities to help humans. Despite having a brain no bigger than the 28 of your index finger, pigeons have a very impressive 29__ memory. Recently it was shown that they could be trained to be as accurate as humans at detecting breast cancer in images.Rats are often 30 with spreading disease rather than 31 it, but this long-tailed animal is highly 32 . Inside a rat's nose are up to 1,000 different types of olfactory receptors （嗅觉感受器）, whereas humans only have 100 to 200 types. This gives rats the ability to detect __33 smells. As a result, some rats are being put to work to detect TB（肺结核）. When the rats detect the smell, they stop and rub their legs to 34 a sample is infected.Traditionally, a hundred samples would take lab technicians more than two days to 35 , but for a rat it takes less than 20 minutes. This rat detection method doesn't rely on specialist equipment. It is also more accurate — the rats are able to find more TB infections and, therefore, save more lives.A) associated I) slightB) examine J) specifyC) indicate K) superiorD) nuisance L) suspiciousE) peak M) tipF) preventing N) treatedG) prohibiting O) visualH) sensitiveSection BDirections: In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.Do In-Class Exams Make Students Study Harder?Research suggests they may study more broadly for the unexpected rather than search for answers.[A] I have always been a poor test-taker. So it may seem rather strange that I have returned to college to finish the degree I left undone some four decades ago. I am making my way through Columbia University, surrounded by students who quickly supply the verbal answer while I am still processing the question.[B] Since there is no way for me to avoid exams, I am currently questioning what kind are the most taxing and ultimately beneficial. I have already sweated through numerous in-class midterms and finals, and now I have a professor who issues take-home ones. I was excited when I learned this, figuring I had a full week to do the research, read the texts, and write it all up. In fact, I was still rewriting my midterm the morning it was due. To say I had lost the thread is putting it mildly.[C] As I was suffering through my week of anxiety, overthinking the material and guessing my grasp of it, I did some of my own polling among students and professors. David Eisenbach, who teaches a popular class on U.S. presidents at Columbia, prefers the in-class variety. He believes students ultimately learn more and encourages them to form study groups. “That way they socialize over history outside the class, which wouldn’t happen without the pressure of an in-class exam,” he explained, “Furthermore, in-class exams force students to learn how to perform under pressure, and essential work skill.”[D] He also says there is less chance of cheating with the in-class variety. In 2012, 125 students at Harvard were caught up in a scandal when it was discovered they had cheated on a take-home exam for a class entitled “Introduction To Congress.” Some colleges have what they call an “honor code,” though if you are smart enough to get into these schools, you are either smart enough to get around any codes or hopefully, too ethical to consider doing so. As I sat blocked and clueless for two solid days, I momentarily wondered if I couldn’t just cal l an expert on the subject matter which I was tackling, or someone who took the class previously, to get me going.[E] Following the Harvard scandal, Mary Miller, the former dean of students at Yale, made an impassioned appeal to her school’s professors to refrain from take-hone exams. “Students risk health and well being, as well as performance in other end-of-term work, when faculty offers take-home exams without clear, time-limited boundaries,” she told me. “Research now shows that regular quizzes, sho rt essays, and other assignments over the course of a term better enhance learning and retention.”[F] Most college professors agree the kind of exam they choose largely depends on the subject. A quantitative-based one, for example, is unlikely to be sent home, where one could ask their older brothers and sisters to help. Vocational-type classes, such as computer science or journalism, on the other hand, are often more research-oriented and lend themselves to take-home testing. Chris Koch, who teaches “Hi story of Broadcast Journalism” at Montgomery Community College in Rockville, Maryland, points out that reporting is about investigation rather than the memorization of minute details. “In my field, it’s not what you know—it’s what you know how to find out,” says Koch. “There is way too much information, and more coming all the time, for anyone to remember.I want my students to search out the answers to questions by using all the resources available to them.[G] Students’ test-form preferences vary, too, often depending on the subject and course difficulty. “I prefer take-home essays because it is then really about the writing, so you have time to edit and do more research,” says Elizabeth Dresser, a junior at Barnard. Then there is the stress factor. Fran cesca Haass, a senior at Middlebury, says, “I find the in-class ones are more stressful in the short term, but there is immediate relief as you swallow information like mad, and then you get to forget it all. Take-homes require thoughtful engagement which can lead to longer term stress as there is never a moment when the time is up.” Meanwhile, Olivia Rubin, a sophomore at Emory, says she hardly even considers take-homes true exams. “If you understand the material and have the ability to articulate (说出) you r thoughts, they should be a breeze.”[H] How students ultimately handle stress may depend on their personal test-taking abilities. There are people who always wait until the last minute, and make it much harder than it needs to be. And then there those who, not knowing what questions are coming at them, and having no resources to refer to, can freeze. And then there are we rare folks who fit both those descriptions.[I] Yes, my advanced age must factor into the equation (等式), in part because of my inability toaccess the information as quickly. As another returning student at Columbia, Kate Marber, toldme, “We are learning not only all this information, but essentially how to learn again. Ourfellow students have just come out of high school. A lot has changed since we were last inschool.”[J] If nothing else, the situation has given my college son and me something to share, When Iasked his opinion on this matter, he responded, “I like in-class exams because the time isalready reserved, as opposed to using my free time at home to work on a test,” he responded.It seems to me that a compromise would be receiving the exam questions a day or two inadvance, and then doing the actual test in class the ticking clock overhead.[K] Better yet, how about what one Hunter College professor reportedly did recently for her finalexam: She encouraged the class not to stress or even study, promising that, “It is going to be apiece of cake.” When the students came in, sharpened pencils in ha nd, there was not a bluebook in sight. Rather, they saw a large chocolate cake and they each were given a slice.36. Elderly students find it hard to keep up with the rapid changes in education.37. Some believe take-home exams may affect students' performance in other courses.38. Certain professors believe in-class exams are ultimately more helpful to students.39. In-class exams are believed to discourage cheating in exams.40. The author was happy to learn she could do some exams at home.41. Students who put off their work until the last moment often find the exams more difficult thanthey actually are.42. Different students may prefer different types of exams.43. Most professors agree whether to give an in-class or a take-home exam depends on type ofcourse being taught.44. The author dropped out of college some forty years ago.45. Some students think take-home exams will eat up their free time.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 and 50 are based on the following passage.That people often experience trouble sleeping in a different bed in unfamiliar surroundings is a phenomenon known as the “first-night” effect. If a person stays in the same room the following night they tend to sleep more soundly. Yuka Sasaki and her colleagues at Brown University set out to investigate the origins of this effect.Dr. Sasaki knew the first-night effect probably has something to do with how humans evolved. The puzzle was what benefit would be gained from it when performance might be affected the following day. She also knew from previous work conducted on birds and dolphins that these animals put half of their brains to sleep at a time so that they can rest while remaining alert enough to avoid predators (捕食者). This led her to wonder if people might be doing the same thing. To take a closer look, her team studied 35 healthy people as they slept in the unfamiliar environment of the university’s Department of Psychological Sci ences. The participants each slept in the department for two nights and were carefully monitored with techniques that looked at the activity of their brains. Dr. Sasaki found, as expected, the participants slept less well on their first night than they did on their second, taking more than twice as long to fall asleep and sleeping less overall. During deep sleep, the participants’ brains behaved in a similar manner seen in birds and dolphins. On the first night only, the left hemispheres (半球) of their brains did not sleep nearly as deeply as their right hemispheres did.Curious if the left hemispheres were indeed remaining awake to process information detected in the surrounding environment, Dr. Sasaki re-ran the experiment while presenting the sleeping participants with a mix of regularly timed beeps (蜂鸣声) of the same tone and irregular beeps of a different tone during the night. She worked out that, if the left hemisphere was staying alert to keep guard in a strange environment, then it would react to the irregular beeps by stirring people from sleep and would ignore the regularly timed ones. This is precisely what she found.46. What did researchers find puzzling about the first-night effect?A) To what extent it can trouble people. C) What circumstances may trigger it.B) What role it has played in evolution. D) In what way it can be beneficial.47. What do we learn about Dr. Yuka Sasaki doing her research?A) She found birds and dolphins remain alert while asleep.B) She found birds and dolphins sleep in much the same way.C) She got some idea from previous studies on birds and dolphinsD) She conducted studies on birds’ and dolphins’ sleeping patterns.48. What did Dr. Sasaki do when she first did her experiment?A) She monitored the brain activity of participants sleeping in a new environment.B) She recruited 35 participants from her Department of Psychological Sciences.C) She studied the differences between the two sides of participants’ brains.D) She tested her findings about birds and dolphins on human subjects.49. What did Dr. Sasaki do when re-running her experiment?A) She analyzed the negative effect of irregular tones on brains.B) She recorded participants’ adaptation to changed environment.C) She exposed her participants to two different stimuli.D) She compared the responses of different participants.50. What did Dr. Sasaki find about the participants in her experiment?A) They tended to enjoy certain tones more than others.B) They tended to perceive irregular beeps as a threat.C) They felt sleepy when exposed to regular beeps.D) They differed in their tolerance of irregular tones.Passage TwoQuestions 51 to 55 are based on the following passage.It’s time to reevaluate how women han dle conflict at work. Being overworked or over-committed at home and on the job will not get you where you want to be in life. It will only slow you down and hinder your career goals.Did you know women are more likely than men to feel exhausted? Nearly twice as many women than men ages 18-44 reported feeling “very tired” or “exhausted”, according to a recent study.This may not be surprising given that this is the age range when women have children. It's also the age range when many women are trying to balance careers and home. One reason women may feel exhausted is that they have a hard time saying "no." Women want to be able todo it all volunteer for school parties or cook delicious meals-and so their answer to any request is often “Yes, I can.”Wom en struggle to say “no” in the workplace for similar reasons, including the desire to be liked by their colleagues. Unfortunately, this inability to say "no" may be hurting women's heath as well as their career.At the workplace, men use conflict as a way to position themselves, while women often avoid conflict or strive to be the peacemaker, because they don't want to be viewed as aggressive or disruptive at work. For example, there’s a problem that needs to be addressed immediately, resulting in a dispute over should be the one to fix it. Men are more likely to face that dispute from the perspective of what benefits them most, whereas women may approach the same dispute from the perspective of what's the easiest and quickest way to resolve the problem-evenif that means doing the boring work themselves.This difference in handling conflict could be the deciding factor on who gets promoted to a leadership position and who does not. Leaders have to be able to delegate and manage resources wisely – including staff expertise. Shouldering more of the workload may not earn you that promotion. Instead, it may highlight your inability to delegate effectively.51. What does the author say is the problem with women?A) They are often unclear about the career goals to reach.B) They are usually more committed at home than on the job.C) They tend to be over-optimistic about how far they could go.D) They tend to push themselves beyond the limits of their ability.52. Why do working women of child-bearing age tend to feel drained of energy?A) They struggle to satisfy the demands of both work and home.B) They are too devoted to work and unable to relax as a result.C) They do their best to cooperate with their workmates.D) They are obliged to take up too many responsibilities.53. What may hinder the future prospects of career women?A) Their unwillingness to say “no”.B) Their desire to be considered powerful.C) An underestimate of their own ability.D) A lack of courage to face challenges.54. Men and woman differ in their approach to resolving workplace conflicts in that______.A) women tend to be easily satisfiedB) men are generally more persuasiveC) men tend to put their personal interests firstD) women are much more ready to compromise55. What is important to a good leader?A) A dominant personality. C) The courage to admit failureB) The ability to delegate. D) A strong sense of responsibility.Part Ⅳ Translation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese intoEnglish. You should write your answer on Answer Sheet 2.华山位于华阴市，据120公里。
2017年12月大学英语四级考试真题及问题详解
2017年12月大学英语四级考试真题及答案（第一套）Part I Writing （25 minutes）Directions: For this part, you are allowed 30 minutes to write a short easy on how to besthandle the relationship between doctors and patients. You should write at least120 words but no more than 180 words.Part II Listening Comprehension （25 minutes）Section ADirections: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 and 2 are based on the news report you have just heard.1. A) Her friend Erika. C) Her grandfather.B) Her little brother. D) Her grandmother.2. A) By taking pictures for passers-by. C) By selling lemonade and pictures.B) By working part time at a hospital. D) By asking for help on social media.Questions 3 and 4 are based on the news report you have just heard.3. A) Finding cheaper ways of highway construction.B) Generating electric power for passing vehicles.C) Providing clean energy to five million people.D) Testing the efficiency of the new solar panel.4. A) They can stand the wear and tear of natural elements.B) They can be laid right on top of existing highways.C) They are only about half an inch thick.D) They are made from cheap materials.Questions 5 to 7 are based on the news report you have just heard.5. A) Endless fighting in the region. C) Inadequate funding for research.B) The hazards from the desert. D) The lack of clues about the species.6. A) To observe the wildlife in the two national parks.B) To identify the reasons for the lions’ disappearance.C) To study the habitat of lions in Sudan and Ethiopia.D) To find evidence of the existence of the “lost lions”.7. A) Lions walking. C) Some camping facilities.B) Lions’ tracks. D) Traps set by local hunters.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 bestanswer 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) Her ‘lucky birthday’. C) Her wedding anniversary.B) A call from her dad. D) A special gift from the man.9. A) Gave her a big model plane. C) Took her on a trip overseas.B) Bought her a good necklace. D) Threw her a surprise party.10. A) The gift her husband has bought.B) The trip her husband has planned.C) What has been troubling her husband.D) What her husband and the man are up to.11. A) He will be glad to be a guide for the couple’s holiday trip.B) He will tell the women the secret if her husband agrees.C) He is eager to learn how the couple’s holiday turns out.D) He wants to find out about the couple’s holiday plan.Questions 12 to 15 are based on the conversation you have just heard.12. A) They are sensitive to the dynamics of a negotiation.B) They see the importance of making compromises.C) They know when to adopt a tough attitude.D) They take the rival’s attitude into account.13. A) They know how to adapt. C) They know when to make compromises.B) They know when to stop. D) They know how to control their emotion.14. A) They are patient. C) They learn quickly.B) They are good at expression. D) They uphold their principles.15. A) Make clear one's intentions. C) Formulate one's strategy.B) Clarify items of negotiation. D) Get to know the other side.Section CDirections: In this section, you will hear three passages. At the end of each passage, you willhear three or four questions. Both the passage and the questions will be spoken onlyonce. After you hear a question, you must choose the best answer from the fourchoices marked A), B), C), D). Then mark the corresponding letter on AnswerSheet 1 with a single line through the centre.Questions 16 to 18 are based on the passage you have just heard.16. A) When America's earliest space program started.B) When the International Space Station was built.C) How many space shuttle missions there will be.D) How space research benefits people on Earth.17. A) They accurately calculated the speed of the orbiting shuttles.B) They developed objects for astronauts to use in outer space.C) They tried to meet astronauts' specific requirements.D) They tried to make best use of the latest technology.18. A) They are extremely accurate. C) They were first made in space.B) They are expensive to make. D) They were invented in the 1970s.Questions 19 to 21 are based on the passage you have just heard.19. A) It was when her ancestors came to America.B) People had plenty of land to cultivate then.C) It marked the beginning of something new.D) Everything was natural and genuine then.20. A) They believed in working for goals. C) They had all kinds of entertainment.B) They enjoyed living a living a life of ease. D) They were known to be creative.21. A) Chatting with her ancestors. C) Polishing all the silver work.B) Furnishing her country house. D) Doing needlework by the fire.Questions 22 to 25 are based on the passage you have just heard.22. A) Use a map to identify your location. C) Sit down and try to calm yourself.B) Call your family or friends for help. D) Try to follow your footprints back.23. A) You may find a way out without your knowing it.B) You may expose yourself to unexpected dangers.C) You may get drowned in a sudden flood.D) You may end up entering a wonderland.24. A) Look for food. C) Start a fire.B) Wait patiently. D) Walk uphill.25. A) Inform somebody of your plan. C) Check the local weather.B) Prepare enough food and drink. D) Find a map and a compass.Part Ⅲ Reading Comprehension ( 40 minutes )Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.A rat or pigeon might not be the obvious choice to tend to someone who is sick, but these creatures have some 26 skills that could help the treatment of human diseases.Pigeons are often seen as dirty birds and an urban 27 , but they are just the latest in a long line of animals that have been found to have abilities to help humans. Despite having a brain no bigger than the 28 of your index finger, pigeons have a very impressive 29__ memory. Recently it was shown that they could be trained to be as accurate as humans at detecting breast cancer in images.Rats are often 30 with spreading disease rather than 31 it, but this long-tailed animal is highly 32 . Inside a rat's nose are up to 1,000 different types of olfactory receptors （嗅觉感受器）, whereas humans only have 100 to 200 types. This gives rats the ability to detect __33 smells. As a result, some rats are being put to work to detect TB（肺结核）. When the rats detect the smell, they stop and rub their legs to 34 a sample is infected.Traditionally, a hundred samples would take lab technicians more than two days to 35 , but for a rat it takes less than 20 minutes. This rat detection method doesn't rely on specialistequipment. It is also more accurate — the rats are able to find more TB infections and, therefore, save more lives.A) associated I) slightB) examine J) specifyC) indicate K) superiorD) nuisance L) suspiciousE) peak M) tipF) preventing N) treatedG) prohibiting O) visualH) sensitiveSection 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. Answerthe questions by marking the corresponding letter on Answer Sheet 2.Do In-Class Exams Make Students Study Harder?Research suggests they may study more broadly for the unexpected rather than search for answers.[A] I have always been a poor test-taker. So it may seem rather strange that I have returned to college to finish the degree I left undone some four decades ago. I am making my way through Columbia University, surrounded by students who quickly supply the verbal answer while I am still processing the question.[B] Since there is no way for me to avoid exams, I am currently questioning what kind are the most taxing and ultimately beneficial. I have already sweated through numerous in-class midterms and finals, and now I have a professor who issues take-home ones. I was excited when I learned this, figuring I had a full week to do the research, read the texts, and write it all up. In fact, I was still rewriting my midterm the morning it was due. To say I had lost the thread is putting it mildly.[C] As I was suffering through my week of anxiety, overthinking the material and guessing my grasp of it, I did someof my own polling among students and professors. David Eisenbach, who teaches a popular class on U.S. presidents at Columbia, prefers the in-class variety. He believes students ultimately learn more and encourages them to form study groups. “That way they socialize over history outside the class, which wouldn’t happen without the pressure of an in-class exam,” he explained, “Furthermore, in-class exams force students to learn how to perform under pressure, and essential work skill.”[D] He also says there is less chance of cheating with the in-class variety. In 2012, 125 students at Harvard were caught up in a scandal when it was discovered they had cheated on a take-home exam for a class entitled “Introduction To Congress.”Some colleges have what they call an “honor code,” though if you are smart enough to get into these schools, you are either smart enough to get around any codes or hopefully, too ethical to consider doing so. As I sat blocked and clueless for two solid days, I momentarily wondered if I couldn’t just call an expert on the subject matter which I was tackling, or someone who took the class previously, to get me going.[E] Following the Harvard scandal, Mary Miller, the former dean of students at Yale, made an impassioned appeal to her school’s professors to refrain from take-hone exams. “Students risk health and well being, as well as performance in other end-of-term work, when faculty offers take-home exams without clear,time-limited boundaries,” she told me. “Research now shows that regular quizzes, short essays, and other assignments over the course of a term better enhance learning and retention.”[F] Most college professors agree the kind of exam they choose largely depends on the subject. A quantitative-based one, for example, is unlikely to be sent home, where one could ask their older brothers and sisters to help. Vocational-type classes, such as computer science or journalism, on the other hand, are often more research-oriented and lend themselves to take-home testing. Chris Koch, who teaches “History of Broadcast Journalism” at Montgomery Community College in Rockville, Maryland, points out that reporting is about investigation rather than the memorization of minute details. “In my field, it’s not what you know—it’s what you know how to find out,” says Koch. “There is way too much information, and more coming all the time, for anyone to remember. I want my students to search out the answers to questions by using all the resources available to them.[G] Students’ test-form preferences vary, too, often depending on the subject and course difficulty. “I prefer take-home essays because it is then really about the writing, so you have time to edit and do more research,” says Elizabeth Dresser, a junior at Barnard. Then there is the stress factor. Francesca Haass, a senior at Middlebury, says, “I find thein-class ones are more stressful in the short term, but there is immediate relief as you swallow information like mad, and then you get to forget it all. Take-homes require thoughtful engagement which can lead to longer term stress as there is never a moment when the time is up.” Meanwhile, Olivia Rubin, a sophomore at Emory, says she hardly even considers take-homes true exams. “If you understand the material and have the ability to articulate (说出) your thoughts, they should be a breeze.”[H] How students ultimately handle stress may depend on their personal test-taking abilities. There are people who always wait until the last minute, and make it much harder than it needs to be. And then there those who, not knowing what questions are coming at them, and having no resources to refer to, can freeze. And then there are we rare folks who fit both those descriptions.[I] Yes, my advanced age must factor into the equation (等式), in part because of my inability toaccess the information as quickly. As another returning student at Columbia, Kate Marber, toldme, “We are learning not only all this information, but essentially how to learn again. Ourfellow students have just come out of high school. A lot has changed since we were last inschool.”[J] If nothing else, the situation has given my college son and me something to share, When Iasked his opinion on this matter, he responded, “I like in-class exams because the time isalready reserved, as opposed to using my free time at home to work on a test,” he responded.It seems to me that a compromise would be receiving the exam questions a day or two inadvance, and then doing the actual test in class the ticking clock overhead.[K] Better yet, how about what one Hunter College professor reportedly did recently for her finalexam: She encouraged the class not to stress or even study, promising that, “It is going to be apiece of cake.” When the students came in, sharpened pencils in hand, there was not a bluebook in sight. Rather, they saw a large chocolate cake and they each were given a slice.36. Elderly students find it hard to keep up with the rapid changes in education.37. Some believe take-home exams may affect students' performance in other courses.38. Certain professors believe in-class exams are ultimately more helpful to students.39. In-class exams are believed to discourage cheating in exams.40. The author was happy to learn she could do some exams at home.41. Students who put off their work until the last moment often find the exams more difficult thanthey actually are.42. Different students may prefer different types of exams.43. Most professors agree whether to give an in-class or a take-home exam depends on type ofcourse being taught.44. The author dropped out of college some forty years ago.45. Some students think take-home exams will eat up their free time.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 and 50 are based on the following passage.That people often experience trouble sleeping in a different bed in unfamiliar surroundings is a phenomenon known as the “first-night” effect. If a person stays in the same room the following night they tend to sleep more soundly. Yuka Sasaki and her colleagues at Brown University set out to investigate the origins of this effect.Dr. Sasaki knew the first-night effect probably has something to do with how humans evolved. The puzzle was what benefit would be gained from it when performance might be affected the following day. She also knew from previous work conducted on birds and dolphins that these animals put half of their brains to sleep at a time so that they can rest while remaining alert enough to avoid predators (捕食者). This led her to wonder if people might be doing the same thing. To take a closer look, her team studied 35 healthy people as they slept in the unfamiliar environment of the university’s Department of Psychological Sciences. The participants each slept in the department for two nights and were carefully monitored with techniques that looked at the activity of their brains. Dr. Sasaki found, as expected, the participantsslept less well on their first night than they did on their second, taking more than twice as long to fall asleep and sleeping less overall. During deep sleep, the participants’ brains behaved in a similar manner seen in birds and dolphins. On the first night only, the left hemispheres (半球) of their brains did not sleep nearly as deeply as their right hemispheres did.Curious if the left hemispheres were indeed remaining awake to process information detected in the surrounding environment, Dr. Sasaki re-ran the experiment while presenting the sleeping participants with a mix of regularly timed beeps (蜂鸣声) of the same tone and irregular beeps of a different tone during the night. She worked out that, if the left hemisphere was staying alert to keep guard in a strange environment, then it would react to the irregular beeps by stirring people from sleep and would ignore the regularly timed ones. This is precisely what she found.46. What did researchers find puzzling about the first-night effect?A) To what extent it can trouble people. C) What circumstances may trigger it.B) What role it has played in evolution. D) In what way it can be beneficial.47. What do we learn about Dr. Yuka Sasaki doing her research?A) She found birds and dolphins remain alert while asleep.B) She found birds and dolphins sleep in much the same way.C) She got some idea from previous studies on birds and dolphinsD) She conducted studies on birds’ and dolphins’ sleeping patterns.48. What did Dr. Sasaki do when she first did her experiment?A) She monitored the brain activity of participants sleeping in a new environment.B) She recruited 35 participants from her Department of Psychological Sciences.C) She studied the differences between the two sides of participants’ brains.D) She tested her findings about birds and dolphins on human subjects.49. What did Dr. Sasaki do when re-running her experiment?A) She analyzed the negative effect of irregular tones on brains.B) She recorded participants’ adaptation to changed environment.C) She exposed her participants to two different stimuli.D) She compared the responses of different participants.50. What did Dr. Sasaki find about the participants in her experiment?A) They tended to enjoy certain tones more than others.B) They tended to perceive irregular beeps as a threat.C) They felt sleepy when exposed to regular beeps.D) They differed in their tolerance of irregular tones.Passage TwoQuestions 51 to 55 are based on the following passage.It’s time to reevaluate how women handle conflict at work. Being overworked or over-committed at home and on the job will not get you where you want to be in life. It will only slow you down and hinder your career goals.Did you know women are more likely than men to feel exhausted? Nearly twice as many women than men ages 18-44 reported feeling “very tired” or “exhausted”, according to a recent study.This may not be surprising given that this is the age range when women have children. It's also the age range when many women are trying to balance careers and home. One reason women may feel exhausted is that they have a hard time saying "no." Women want to be able todo it all volunteer for school parties or cook delicious meals-and so their answer to any request is often “Yes, I can.”Women struggle to say “no” in the workplace for similar reasons, including the desire to be liked by their colleagues. Unfortunately, this inability to say "no" may be hurting women's heath as well as their career.At the workplace, men use conflict as a way to position themselves, while women often avoid conflict or strive to be the peacemaker, because they don't want to be viewed as aggressive or disruptive at work. For example, there’s a problem that needs to be addressed immediately, resulting in a dispute over should be the one to fix it. Men are more likely to face that dispute from the perspective of what benefits them most, whereas women may approach the same dispute from the perspective of what's the easiest and quickest way to resolve the problem-even if that means doing the boring work themselves.This difference in handling conflict could be the deciding factor on who gets promoted to a leadership position and who does not. Leaders have to be able to delegate and manage resources wisely – including staff expertise. Shouldering more of the workload may not earn you that promotion. Instead, it may highlight your inability to delegate effectively.51. What does the author say is the problem with women?A) They are often unclear about the career goals to reach.B) They are usually more committed at home than on the job.C) They tend to be over-optimistic about how far they could go.D) They tend to push themselves beyond the limits of their ability.52. Why do working women of child-bearing age tend to feel drained of energy?A) They struggle to satisfy the demands of both work and home.B) They are too devoted to work and unable to relax as a result.C) They do their best to cooperate with their workmates.D) They are obliged to take up too many responsibilities.53. What may hinder the future prospects of career women?A) Their unwillingness to say “no”.B) Their desire to be considered powerful.C) An underestimate of their own ability.D) A lack of courage to face challenges.54. Men and woman differ in their approach to resolving workplace conflicts in that______.A) women tend to be easily satisfiedB) men are generally more persuasiveC) men tend to put their personal interests firstD) women are much more ready to compromise55. What is important to a good leader?A) A dominant personality. C) The courage to admit failureB) The ability to delegate. D) A strong sense of responsibility.Part Ⅳ Translation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese intoEnglish. You should write your answer on Answer Sheet 2.华山位于华阴市，据120公里。
西南交《大学英语IV》在线作业一【满分答案】
西南交《大学英语IV》在线作业一---------------------------单选题1.Because of the strong sun, Mrs. White’s new dinning-room curtains ______ from dark blue to gray within a year.A.disappearedB. fadedC. paledD. grew正确答案:B2.Within two days, the army fired more than two hundred missiles at military _____in the coastal city.A. goalsB. aimsC.targetsD.destinations正确答案:C3.________ he discovered in his experiment is very important to us.B. WhenC. WhatD. Where正确答案:C4.I’m ________ watching television; let’s go for a walk.A.am tired ofB.am tired outC.tired outD. tired of正确答案:D5.Don’t ________ on general statements in a job interview.A. talkB. relyC. makeD.insist正确答案:B6.Floods cause billions of dollars worth of property damage ____________.B.actuallyC.annuallyparatively正确答案:C7.They took ____________ measures to prevent poisonous gases from escaping.A.efficientB.beneficialC. validD.effective正确答案:D8.In no country ____________ Britain, it has been said, can one experience four seasons in the course of a single day.A.other thanB.more thanC.better thanD.rather than正确答案:A9.Mary ____________her classmates has learned how to deal with the complicated problem.A. andB.and alsoC.as well asD.except正确答案:C10.Physicists from all over the world came to the U.S. to ______ the hundredth anniversary of Einstein’s birth.A.congratulateB.celebrateC.decorateD.participate正确答案:B11.He is internationally known _____ a score of books.A. forB. asC. toD. with正确答案:A12.Can you figure ______ this puzzle?A. outB. inC. onD. for正确答案:A13.Dust quickly ______ if we don’t sweep our floor.A.accumulatesB.collectsC.gathersD.increase正确答案:A14.He ______ that he had been in prison twice before.A.revealedB.revisedC.rewroteD.returned正确答案:A15.He soon received promotion, for his superiors realized that he was a man of considerable ____.A.abilityB.futureC.possibilityD.opportunity正确答案:A16.What ________ me most was the friendship your people have for our people.A.depressedB.expressedC.oppressedD.impressed正确答案:D17.In order to show his boss what a careful worker he was, he took ____________ trouble over the figures.A.extensiveB. spareC. extraD.supreme18.She is regarded as a ______ teacher.A.respectiveB.respectableC.respectfulD.respecting正确答案:B19.The police have begun to ______ the murder case, but in vain.A.look intoB.look upC.look outD.look after正确答案:A20.My brother’s plans are very ; he wants to master English, French and Spanish before he is sixteen.A.abundantB.ambitiousC.arbitraryD.aggressive21.____________ he likes her, he does get annoyed with her sometimes.A.Though muchB.Much thoughC.As muchD.Much as正确答案:D22.She once again went through her composition carefully to ____________ all spelling mistakes from it.A.withdrawB.abandonC.eliminateD.diminish正确答案:C23.We should not talk about other people’s ______ life.A.privateB.individualC. ownD.specific24.Why not ______ to Professor Chen for advice? He is an expert in this field.A. goB. to goC.you goD.your going正确答案:A25.It is said in some parts of the world, goats, rather than cows, serve asa vital _____of milk.A.storageB.reserveC.resourceD.source正确答案:D26.We were all eager to express our own opinion, but strange enough, no one was ______ to break the ice.A.hopefulB. kindC.generousD.willing正确答案:D27.I want to go to the dentist, but you ______ with me.A.need not to goB.do not need goC.need not goD.need go not正确答案:C28.You see the lightening ____________ it happens, but you hear the thunder later.A.the instantB.for an instantC.on the instantD.in an instant正确答案:A29.Tom attended the meeting ______ his company.A.on behalfB.on behalf ofC.on the behalfD.on the behalf of正确答案:B30.It is understood that the filming of Legends is almost complete and the film is not ____________ to be delayed.A.possibleB.likelyC. easyD.available正确答案:B31.There is always ______ for improvement no matter how much you have already done.A. placeB. areaC. roomD. space正确答案:C32._____ I admire David as a poet, I do not like him as a man.A.Much asB.Only ifC.If onlyD.As much正确答案:A33.Tom was busily ______ painting the furniture.A.engagedB.engaged inC.engaged toD.engaged with正确答案:B34.- Will you be able to come to the meeting? _____________A.I’m afraid notB.I’m sorry notC.I’m not afraid soD.I’m sorry that “no”正确答案:A35.It ______ last night, for the ground is wet.A.must rainB.must be going to rainC.must have rainedD.ought to rain正确答案:C36.Fresh vegetables were ______during the World War II.A. lackB.scarceC.littleD.sparse正确答案:B37.He gave a _________ to handle the affairs in a friendly manner.A.pledgeB.missionC.plungeD.motion正确答案:A38.I ________ to him that I should come.A.justifiedB.evaluatedC.indicatedD.reckoned正确答案:C39.Before ________ money in a new research, people should be aware of the prospective failures.A. useB. usingC.investD.investing正确答案:D40.It is time that such practices ____.A.are endedB.be endedC.were endedD.must be ended正确答案:C。
西南交大学英语Ⅳ在线作业一参考答案
请同学及时保存作业,如您在20分钟内不作操作,系统将自动退出。
西南交《大学英语Ⅳ》在线作业一试卷总分：100 测试时间：--参考答案见最后一页单选题一、单选题（共 40 道试题，共 100 分。
）V1. It is fixed ________ at seven tomorrow morning.A. if we’ll start outB. that we’ll start outC. when we’ll start outD. are we going to start out满分：分2. The teacher ______ be in the office; maybe he is in the library.A. mightB. couldC. may notD. can not满分：分3. The police have begun to ______ the murder case, but in vain.A. look intoB. look upC. look outD. look after满分：分4. When he was a boy he ________ his talent for writing.A. demonstratedB. clarifiedC. illustratedD. approved满分：分5. You’ll have more chances of promotion ______ you work hard.A. sinceB. whileC. asD. once满分：分6. ________ the football game will be played depends on the weather.A. IfB. ThatC. WhetherD. Since满分：分7. ______ would like to help, I have other work to do.A. Much as IB. As much IC. How much as ID. Much I满分：分8. Why not ______ to Professor Chen for advice? He is an expert in this field.A. goB. to goC. you goD. your going满分：分9. She is regarded as a ______ teacher.A. respectiveB. respectableC. respectfulD. respecting满分：分10. Everything I’ve described went wrong. ____________, the whole affair was a disaster.A. In kindB. In allC. In shortD. In general满分：分11. The traffic police were searching for evidence to prove the man’s ______.A. mistakeB. faultC. shortcomingD. error满分：分12. He says he will tell ________ wants to know.A. whateverB. whoeverC. whicheverD. who满分：分13. It is understood that the filming of Legends is almost complete and the film is not ____________ to be delayed.A. possibleB. likelyC. easyD. available满分：分14. My brother’s plans are very ; he wants to master English, French and Spanish before he is sixteen.A. abundantB. ambitiousC. arbitraryD. aggressive满分：分15. Dust quickly ______ if we don’t sweep our floor.A. accumulatesB. collectsC. gathersD. increase满分：分16. Parents need to be fully informed so they can make a ______ decision.A. rationalB. rightC. profitableD. beneficial满分：分17. The article made no ______ to previous research on the subject.A. researchesB. entrancesC. accessesD. references满分：分18. The industrial community should be distant enough from the crowed center to reduce ____________dangers.A. feasibleB. positiveC. potentialD. substantial满分：分19. In no country ____________ Britain, it has been said, can one experience four seasons in the course of a single day.A. other thanB. more thanC. better thanD. rather than满分：分20. The project is designed to provide young people ________ work.A. forB. withC. toD. as满分：分21. Computer technology will _____ a revolution in business administration.A. bring aroundB. bring aboutC. bring downD. bring up满分：分22. Mary ____________her classmates has learned how to deal with the complicated problem.A. andB. and alsoC. as well asD. except满分：分23. It was several minutes before I was ____________ of what was happening.A. knowB. realizeC. wearD. aware满分：分24. Within two days, the army fired more than two hundred missiles at military _____in the coastal city.A. goalsB. aimsC. targetsD. destinations满分：分25. _____ I admire David as a poet, I do not like him as a man.A. Much asB. Only ifC. If onlyD. As much满分：分26. Arriving home, the boy told his parents about all the _____ which occurred in his dormitory.A. occasionsB. factorsC. incidentsD. issues满分：分27. Showing some sense of humor can be an effective way to _________ some stressful situationA. deal withB. deal inC. deal aboutD. deal off满分：分28. Would you tell me ________?A. where is the post officeB. where stands the post officeC. where the post office isD. where stood the post office满分：分29. Floods cause billions of dollars worth of property damage ____________.A. relativelyB. actuallyC. annuallyD. comparatively满分：分30. Only in our country ______ serve the interests of the people.A. science canB. science couldC. can scienceD. could science满分：分31. - Will you be able to come to the meeting? _____________A. I’m afraid notB. I’m sorry notC. I’m not afraid soD. I’m sorry that “no”满分：分32. Fresh vegetables were ______during the World War II.A. lackB. scarceC. littleD. sparse满分：分33. “Have you gone to see the doctor?” “No, but______.”A. I goB. I’m going to seeC. I go to seeD. I’m going to满分：分34. I want to go to the dentist, but you ______ with me.A. need not to goB. do not need goC. need not goD. need go not满分：分35. ________ is what I am anxious to know.A. How do you get rid of miceB. How you get rid of miceC. How can you get rid of miceD. How could you get rid of mice满分：分36. We were all eager to express our own opinion, but strange enough, no one was ______ to break the ice.A. hopefulB. kindC. generousD. willing满分：分37. We should not talk about other people’s ______ life.A. privateB. individualC. ownD. specific满分：分38. One reason is that banks must ________ customers, who will switch to another bank if they are not satisfied.A. compete forB. compete againstC. compete withD. compete in满分：分39. It is said in some parts of the world, goats, rather than cows, serve as a vital _____of milk.A. storageB. reserveC. resourceD. source满分：分40. My trousers ______ when I tried to jump over the fence.A. crackedB. splitC. brokeD. burst满分：分请同学及时保存作业,如您在20分钟内不作操作,系统将自动退出。
2017年12月英语四级真题及答案(第一套)
2017年12月英语四级真题及答案(第一套)Part I Writing (25 minutes)Directions: For this part, you are allowed 30 minutes to write a short easy on how to best handle the relationship between doctors and patients. You should write at least120 words butno more than 180 words.Part II Listening Comprehension （25minutes）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 bespoken only once. After you hear a question, you must choose the best answer fromthe four choices marked A), B), C) and D). Then mark the corresponding letter onAnswer Sheet 1 with a single line through the centre.Questions 1 and 2 are based on the news report you have just heard.1. A) Her friend Erika. C) Her grandfather.B) Her little brother. D) Her grandmother.2. A) By taking pictures for passers-by. C) By selling lemonade and pictures.B) By working part time at a hospital. D) By asking for help on social media.Questions 3 and 4 are based on the news report you have just heard.3.A) Finding cheaper ways of highway construction.B) Generating electric power for passing vehicles.C) Providing clean energy to five million people.D) Testing the efficiency of the new solar panel.4. A) They can stand the wear and tear of natural elements.B) They can be laid right on top of existing highways.C) They are only about half an inch thick.D) They are made from cheap materials.Questions 5 to 7 are based on the news report you have just heard.5. A) Endless fighting in the region. C) Inadequate funding for research.B) The hazards from the desert. D) The lack of clues about the species.6. A) To observe the wildlife in the two national parks.B) To identify the reason s for the lions’ disappearance.C) To study the habitat of lions in Sudan and Ethiopia.D) To find evidence of the existence of the “lost lions”.7. A) Lions walking. C) Some camping facilities.B) Lions’ tracks. D) Traps set by local hunters.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 spokenonly once. After you hear a question, you must choose the best answer from the fourchoices marked A), B), C), and D). Then mark the corresponding letter on AnswerSheet 1 with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8. A) Her ‘lucky birthday’.C) Her wedding anniversary.B) A call from her dad. D) A special gift from the man.9. A) Gave her a big model plane. C) Took her on a trip overseas.B) Bought her a good necklace. D) Threw her a surprise party.10. A) The gift her husband has bought.B) The trip her husband has planned.C) What has been troubling her husband.D) What her husband and the man are up to.11. A) He will be glad to be a guide for the couple’s holiday trip.B) He will tell the women the secret if her husband agrees.C) He is eager to learn how the couple’s holiday turns out.D) He wants to find out about the couple’s holiday plan.Questions 12 to 15 are based on the conversation you have just heard.12. A) They are sensitive to the dynamics of a negotiation.B) They see the importance of making compromises.C) They know when to adopt a tough attitude.D) They take the rival’s attitude into account.13. A) They know how to adapt. C) They know when to make compromises.B) They know when to stop. D) They know how to control their emotion.14. A) They are patient. C) They learn quickly.B) They are good at expression. D) They uphold their principles.15. A) Make clear one's intentions. C) Formulate one's strategy.B) Clarify items of negotiation. D) Get to know the other side.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 choicesmarked A), B), C), D). Then mark the corresponding letter on Answer Sheet 1 with asingle line through the centre.Questions 16 to 18 are based on the passage you have just heard.16. A) When America's earliest space program started.B) When the International Space Station was built.C) How many space shuttle missions there will be.D) How space research benefits people on Earth.17. A) They accurately calculated the speed of the orbiting shuttles.B) They developed objects for astronauts to use in outer space.C) They tried to meet astronauts' specific requirements.D) They tried to make best use of the latest technology.18. A) They are extremely accurate. C) They were first made in space.B) They are expensive to make. D) They were invented in the 1970s.Questions 19 to 21 are based on the passage you have just heard.19. A) It was when her ancestors came to America.B) People had plenty of land to cultivate then.C) It marked the beginning of something new.D) Everything was natural and genuine then.20. A) They believed in working for goals. C) They had all kinds of entertainment.B) They enjoyed living a living a life of ease. D) They were known to be creative.21. A) Chatting with her ancestors. C) Polishing all the silver work.B) Furnishing her country house. D) Doing needlework by the fire. Questions 22 to 25 are based on the passage you have just heard.22. A) Use a map to identify your location. C) Sit down and try to calm yourself.B) Call your family or friends for help. D) Try to follow your footprints back.23. A) You may find a way out without your knowing it.B) You may expose yourself to unexpected dangers.C) You may get drowned in a sudden flood.D) You may end up entering a wonderland.24. A) Look for food. C) Start a fire.B) Wait patiently. D) Walk uphill.25. A) Inform somebody of your plan. C) Check the local weather.B) Prepare enough food and drink. D) Find a map and a compass.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. Readthe passage through carefully before making your choices. Each choice in the bank isidentified by a letter. Please mark the corresponding letter for each item on AnswerSheet 2 with a single line through the centre. You may not use any of the words in thebank more than once.A rat or pigeon might not be the obvious choice to tend to someone who is sick, but these creatures have some ___26___ skills that could help the treatment of human diseases.Pigeons are often seen as dirty birds and an urban __27__, but they are just the latest in a long line of animals that have been found to have abilities to help humans. Despite having a brain no bigger than the _28_of your index finger, pigeons have a very impressive___29___ memory. Recently it was shown that they could be trained to be as accurate as humans at detecting breast cancer in images.Rats are often ___30___with spreading disease rather than___31___ it, but this long-tailed animal is highly___32___. Inside a rat's nose are up to 1,000 different types of olfactory receptors (嗅觉感受器), whereas humans only have 100 to 200 types. This gives rats the ability todetect___33___smells. As a result, some rats are being put to work to detect TB(肺结核). When the rats detect the smell, they stop and rub their legs to ___34___ a sample is infected.Traditionally, a hundred samples would take lab technicians more than two days to ___35___, but for a rat it takes less than 20 minutes. This rat detection method doesn't rely on specialist equipment. It is also more accurate — the rats are able to find more TB infections and, therefore, save more lives.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 theparagraph from which the information is derived. You may choose a paragraph morethan once. Each paragraph is marked with a letter. Answer the questions by markingthe corresponding letter on Answer Sheet 2.Do In-Class Exams Make Students Study Harder?Research suggests they may study more broadly for the unexpected rather than search for answers.[A] I have always been a poor test-taker. So it may seem rather strange that I have returned to college to finish the degree I left undone some four decades ago. I am making my way through Columbia University, surrounded by students who quickly supply the verbal answer while I am still processing the question.[B] Since there is no way for me to avoid exams, I am currently questioning what kind are the most taxing and ultimately beneficial. I have already sweated through numerous in-class midterms and finals, and now I have a professor who issues take-home ones. I was excited when I learned this, figuring I had a full week to do the research, read the texts, and write it all up. In fact, I was still rewriting my midterm the morning it was due. To say I had lost the thread is putting it mildly.[C] As I was suffering through my week of anxiety, overthinking the material and guessing my grasp of it, I did some of my own polling among students and professors. David Eisenbach, who teaches a popular class on U.S. presidents at Columbia, prefers the in-class variety. He believes students ultimately learn more and encourages them to form study groups. “That way they socialize over history outside the class, which wouldn’t happen withou t the pressure of anin-class exam,” he explained, “Furthermore, in-class exams force students to learn how to perform under pressure, and essential work skill.”[D] He also says there is less chance of cheating with the in-class variety. In 2012, 125 students at Harvard were caught up in a scandal when it was discovered they had cheated on a take-home exam for a class entitled “Introduction To Congress.” Some colleges have what they call an “honor code,” though if you are smart enough to get into these sch ools, you are either smart enough to get around any codes or hopefully, too ethical to consider doing so. As I sat blocked and clueless for two solid days, I momentarily wondered if I couldn’t just call an expert on the subject matter which I was tackling, or someone who took the class previously, to get me going.[E] Following the Harvard scandal, Mary Miller, the former dean of students at Yale, made an impassioned appeal to her school’s professors to refrain from take-hone exams. “Students risk health and well being, as well as performance in other end-of-term work, when faculty offers take-home exams without clear, time-limited boundaries,” she told me. “Research now shows that regular quizzes, short essays, and other assignments over the course of a term better enhance learning and retention.”[F] Most college professors agree the kind of exam they choose largely depends on the subject. A quantitative-based one, for example, is unlikely to be sent home, where one could ask their older brothers and sisters to help. Vocational-type classes, such as computer science or journalism, on the other hand, are often more research-oriented and lend themselves to take-home testing. Chris Koch, who teaches “History of Broadcast Journalism” at Montgomery Community College in Rockville, Maryland, points out that reporting is about investigation rather than the memorization of minute details. “In my field, it’s not what you know—it’s what you know how to find out,” says Koch. “There is way too much information, and more c oming all the time, for anyone to remember. I want my students to search out the answers to questions by using all the resources available to them.[G] Students’ test-form preferences vary, too, often depending on the subject and course difficulty. “I pref er take-home essays because it is then really about the writing, so you have time to edit and do more research,” says Elizabeth Dresser, a junior at Barnard. Then there is the stress factor. Francesca Haass, a senior at Middlebury, says, “I find the in-class ones are more stressful in the short term, but there is immediate relief as you swallow information like mad, and then you get to forget it all. Take-homes require thoughtful engagement which can lead to longer term stress as there is never a moment whe n the time is up.” Meanwhile, Olivia Rubin, a sophomore at Emory, says she hardly even considers take-homes true exams. “If you understand the material and have the ability to articulate (说出) your thoughts, they should be a breeze.”[H] How students ultimately handle stress may depend on their personal test-taking abilities. There are people who always wait until the last minute, and make it much harder than it needs to be. And then there those who, not knowing what questions are coming at them, and having no resources to refer to, can freeze. And then there are we rare folks who fit both those descriptions.[I] Yes, my advanced age must factor into the equation (等式), in part because of my inability to access the information as quickly. As another returning student at Columbia, Kate Marber, told me, “We are learning not only all this information, but essentially how to learn again. Our fellow students have just come out of high school. A lot has changed since we were last in school.”[J] If nothing else, the situation has given my college son and me something to share, When Iasked his opinion on this matter, he responded, “I like in-class exams because the time is already reserved, as opposed to using my free time at home to work on a test,” he responded.It se ems to me that a compromise would be receiving the exam questions a day or two in advance, and then doing the actual test in class the ticking clock overhead.[K] Better yet, how about what one Hunter College professor reportedly did recently for her final exam: She encouraged the class not to stress or even study, promising that, “It is going to beapiece of cake.” When the students came in, sharpened pencils in hand, there was not a bluebook in sight. Rather, they saw a large chocolate cake and they each were given a slice.36. Elderly students find it hard to keep up with the rapid changes in education.37. Some believe take-home exams may affect students' performance in other courses.38. Certain professors believe in-class exams are ultimately more helpful to students.39. In-class exams are believed to discourage cheating in exams.40. The author was happy to learn she could do some exams at home.41. Students who put off their work until the last moment often find the exams more difficult than they actually are.42. Different students may prefer different types of exams.43. Most professors agree whether to give an in-class or a take-home exam depends on type of course being taught.44. The author dropped out of college some forty years ago.45. Some students think take-home exams will eat up their free time.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) andD). You should decide on the best choice and mark the corresponding letter onAnswer Sheet 2 with a single line through the centre.Passage OneQuestions 46 and 50 are based on the following passage.That people often experience trouble sleeping in a different bed in unfamiliar surroundings is a phenomenon known as the “first-night” effect. If a person stays in the same room the following night they tend to sleep more soundly. Yuka Sasaki and her colleagues at Brown University set out to investigate the origins of this effect.Dr. Sasaki knew the first-night effect probably has something to do with how humans evolved. The puzzle was what benefit would be gained from it when performance might be affected the following day. She also knew from previous work conducted on birds and dolphins that these animals put half of their brains to sleep at a time so that they can rest while remaining alert enough to avoid predators (捕食者). This led her to wonder if people might be doing the same thing. To take a closer look, her team studied 35 healthy people as they slept in the unfamiliar environment of the university’s Department of Psychological Sciences. The participants each slept in the department for two nights and were carefully monitored with techniques that looked at the activity of their brains. Dr. Sasaki found, as expected, the participantsslept less well on their first night than they did on their second, taking more than twice as long to fall asleep and sleeping less overall. During deep sleep, the participants’ brains behaved in a similar manner seen in birds and dolphins. On the first night only, the left hemispheres (半球) of their brains did not sleep nearly as deeply as their right hemispheres did.Curious if the left hemispheres were indeed remaining awake to process information detected in the surrounding environment, Dr. Sasaki re-ran the experiment while presenting the sleeping participants with a mix of regularly timed beeps (蜂鸣声) of the same tone and irregular beeps of a different tone during the night. She worked out that, if the left hemisphere was staying alert to keep guard in a strange environment, then it would react to the irregular beeps by stirring people from sleep and would ignore the regularly timed ones. This is precisely what she found.46. What did researchers find puzzling about the first-night effect?A) To what extent it can trouble people. C) What circumstances may trigger it.B) What role it has played in evolution. D) In what way it can be beneficial.47. What do we learn about Dr. Yuka Sasaki doing her research?A) She found birds and dolphins remain alert while asleep.B) She found birds and dolphins sleep in much the same way.C) She got some idea from previous studies on birds and dolphinsD) She conducted studies on birds’ and dolphins’ sleeping patterns.48. What did Dr. Sasaki do when she first did her experiment?A) She monitored the brain activity of participants sleeping in a new environment.B) She recruited 35 participants from her Department of Psychological Sciences.C) She studied the differences between the two sides of participants’ brains.D) She tested her findings about birds and dolphins on human subjects.49. What did Dr. Sasaki do when re-running her experiment?A) She analyzed the negative effect of irregular tones on brains.B) She recorded participants’ adaptation to changed environment.C) She exposed her participants to two different stimuli.D) She compared the responses of different participants.50. What did Dr. Sasaki find about the participants in her experiment?A) They tended to enjoy certain tones more than others.B) They tended to perceive irregular beeps as a threat.C) They felt sleepy when exposed to regular beeps.D) They differed in their tolerance of irregular tones.Passage TwoQuestions 51 to 55 are based on the following passage.It’s time to reevaluate how women handle conflict at work. Being overworked orover-committed at home and on the job will not get you where you want to be in life. It will only slow you down and hinder your career goals.Did you know women are more likely than men to feel exhausted? Nearly twice as many women than men ages 18-44 reported feeling “very tired” or “exhausted”, according to a recent study.This may not be surprising given that this is the age range when women have children. It's also the age range when many women are trying to balance careers and home. One reason women may feel exhausted is that they have a hard time saying "no." Women want to be able to do it all volunteer for school parties or cook delicious meals-and so their answer to any request is often “Yes, I can.”Women struggle to say “no” in the workplace for similar reasons, including the desire to be liked by their colleagues. Unfortunately, this inability to say "no" may be hurting women's heath as well as their career.At the workplace, men use conflict as a way to position themselves, while women often avoid conflict or strive to be the peacemaker, because they don't want to be viewed as aggressive or disruptive at work. For example, there’s a problem that needs to be addressed immediately, resulting in a dispute over should be the one to fix it. Men are more likely to face that dispute from the perspective of what benefits them most, whereas women may approach the same dispute from the perspective of what's the easiest and quickest way to resolve the problem-even if that means doing the boring work themselves.This difference in handling conflict could be the deciding factor on who gets promoted to a leadership position and who does not. Leaders have to be able to delegate and manage resources wisely – including staff expertise. Shouldering more of the workload may not earn you that promotion. Instead, it may highlight your inability to delegate effectively.51. What does the author say is the problem with women?A) They are often unclear about the career goals to reach.B) They are usually more committed at home than on the job.C) They tend to be over-optimistic about how far they could go.D) They tend to push themselves beyond the limits of their ability.52. Why do working women of child-bearing age tend to feel drained of energy?A) They struggle to satisfy the demands of both work and home.B) They are too devoted to work and unable to relax as a result.C) They do their best to cooperate with their workmates.D) They are obliged to take up too many responsibilities.53. What may hinder the future prospects of career women?A) Their unwillingness to say “no”.B) Their desire to be considered powerful.C) An underestimate of their own ability.D) A lack of courage to face challenges.54. Men and woman differ in their approach to resolving workplace conflicts in that______.A) women tend to be easily satisfiedB) men are generally more persuasiveC) men tend to put their personal interests firstD) women are much more ready to compromise55. What is important to a good leader?A) A dominant personality. C) The courage to admit failureB) The ability to delegate. D) A strong sense of responsibility.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.华山位于华阴市，据西安120公里。
2017年大学英语四级真题及答案详解
2017年6月大学英语四级答案及解析第一套【完整版】Part I WritingComputer for SaleAs I am about to graduate and leave the campus, I am going to sell my personal laptop at a low price.It is a Lenovo ThinkPad that I bought in June, 2015. It is not big, but very functional. It has a four-core CPU, an independent display card of 2G, a hard disk of 500G and a screen of 15.6 inches.For the last two years, the laptop has served as my faithful aid and helped me finish most of my assignments and my thesis. There has appeared no fault in the process. I owe so much to it. But as my workplace has already offered me a more advanced working laptop, I find there is no necessity for me to have two. And I know that there must be some of my schoolmates who are more in need of the ThinkPad. Therefore, I determined to sell it.I bought the laptop as the price of 3500 yuan. Now I will sell it at 1500 yuan or less. Anyone interested can contact me via email, and my mailbox is ***@.这次的四级作文属于应用文，是近年来不多见的题型。
2017年6月大学英语四级答案及解析第一套【完整版】
2017年6月大学英语四级答案及解析第一套【完整版】2017年6月大学英语四级答案及解析第一套【完整版】新东方在线四六级Part I WritingComputer for SaleAs I am about to graduate and leave the campus, I am going to sell my personal laptop at a low price.It is a Lenovo ThinkPad that I bought in June, 2015. It is not big, but very functional. It has a four-core CPU, an independent display card of 2G, a hard disk of 500G and a screen of 15.6 inches.For the last two years, the laptop has served as my faithful aid and helped me finish most of my assignments and my thesis. There has appeared no fault in the process. I owe so much to it. But as my workplace has already offered me a more advanced working laptop, I find there is no necessity for me to have two. And Iknow that there must be some of my schoolmates who are more in need of the ThinkPad. Therefore, I determined to sell it.I bought the laptop as the price of 3500 yuan. Now I will sell it at 1500 yuan or less. Anyone interested can contact me via email, and my mailbox is ***@.这次的四级作文属于应用文，是近年来不多见的题型。
西交《英语4(新录)》在线作业答案
HomeWorkId：147c7e1c-fee6-49c9-ad16-6d6f924aff6e ExamTaskId：dcc2a0f7-af9e-490c-8ba6-c336c9f833e1西交《英语4(新录)》在线作业1：This course focuses on the ( )of economic analysis to the problems of inflation， unemployment， the balance of payments and enterprise behavior. A：conceptionB：combinationC：applicationD：introduction正确答案：C2："Have you any ( )plans for your future now that you've completed your graduate studies?"A：decisiveB：exactC：preciseD：definite正确答案：D3：Now that we've got a loan from the bank， our project is financially ( ).A：constructiveB：feasibleC：favorableD：stiff正确答案：B4：Don't let his criticism ( ) you; he belongs to the kind of people who take delight in finding fault with other's work.A：discourageB：concernC：dictateD：paralyze正确答案：A5：The destruction of the Twin Towers in New York City ( ) shock and anger throughout the world.A：summonedB：temptedC：provokedD：enveloped正确答案：C6：Are you getting a new flat this year? rn ______ I can’t afford to pay my bills，let alone buy a new flat.、A：Without question.B：You must be joking.C：Good idea!D：Are you sure?正确答案：B7：The United Nations was supposed to ( ) the role of global peace-keeper. A：contendB：nurtureC：carveD：undertake正确答案：D8：Could you be so kind as to turn down that rock “n” roll? I am preparing for tomorrow’s exam. rn - ________.、A：It’s none of your business.B：What are you doing?C：Sure. Sorry to disturb you.D：No， I don’t think so.正确答案：C9：At the first ( ) of twelve all the workers in the factory stopped for lunch.A：hitB：strokeC：strikeD：blow正确答案：C10：After her husband died， she ___ another man in 1964.A：marriedB：married withC：married toD：was married to正确答案：A11：She has two best friends.rn ----___of them is in the country.A：AllB：BothC：No oneD：Neither正确答案：D12：The landlady ___ us bread and milk.A：offeredB：recoveredC：receivedD：confronted正确答案：A13：_____ is the population of Paris?A：How manyB：How muchC：HowD：What正确答案：D14：To be ( ) with you， I think you're making a dreadful mistake by refusing to cooperate.A：candidB：pertinentC：mildD：vivid正确答案：A15：一Hi，welcome back!Had a nice trip?rn一_____A：Oh，fantastic!Fresh air，and sunshine every day．B：Come on．I’ve got lots of fun．C：By the way，I don’t like Saturdays．D：Well，I'll look forward to your phone call．正确答案：A16：Anyone caught ( ) an offense will be punished.A：committingB：conductingC：executingD：performing正确答案：A17：_______ her and then try to copy what she does.、A：MindB：SeeC：Stare atD：Watch正确答案：D18：—Do you mind telling me where you're from? —_________.A：Certainly. I'm from LondonB：SurC：I was born in LondonD：Not really， you can do itE：Certainly not. I'm from London正确答案：D19：— Would you like to have dinner with us this evening? — ________.A：OK， but I have to go to a meeting nowB：No， I can'tC：Sorry， but this evening I have to go to the airport to meet my parentsD：I don't know正确答案：C20：—Do you mind my smoking here? —_________.A：No， thanks.B：Yes， I do.C：Yes. I'd rather not.D：Good ide正确答案：B21：Under normal circumstances the body can ( ) these naturally occurring substances into vitamins.A：convertB：renderC：deriveD：originate正确答案：A22：—How are you feeling? —Much better. _________.A：Thanks for coming to see mB：C：You look great.D：You are so tireE：F：Don't mention it.正确答案：A23：The plants are in a(n) ( ) plastic box， so the children can observe how the roots grow with time.A：appropriateB：intricateC：transparentD：waterproof正确答案：C24：It’s bad _____ for you to smoke in the public places where smoking is not allowed.、A：behaviorB：actionC：mannerD：movement正确答案：A25：( ) her son's expert driving， she got to the support on time， despite the heavy rain.A：Due toB：Thanks toC：Owing toD：On account of正确答案：B。
2017年12月英语四级真题卷一和答案解析
2017年12⽉英语四级真题卷⼀和答案解析2017年12 ⽉⼤学英语四级考试真题（第1 套）Part I Writing (30minutes)（请于正式开考后半⼩时内完成该部分，之后将进⾏听⼒考试）Directions:For this part, you are allowed 30 minutes to write a short essay on how to best handle the relationship between parents and children. You should write at least120 words but no more than 180 words.Part II Listening Comprehension (25 minutes)Section ADirections: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 1 and 2 are based on the news report you have just heard.1.A) Her grandfather. C) Her friend Erika.B)Her grandmother. D) Her little brother.2.A) By taking pictures for passers-by. C) By working part time at a hospital.B)By selling lemonade and pictures. D) By asking for help on social media.Questions 3 and 4 are based on the news report you have just heard.3.A) Testing the efficiency of the new solar panel.B)Providing clean energy to five million people.C)Generating electric power for passing vehicles.D)Finding cheaper ways of highway construction.4.A) They are only about half an inch thick. B) They are made from cheap materials.C)They can be laid right on top of existing highways.D)They can stand the wear and tear of natural elements.Questions 5 to 7 are based on the news report you have just heard.5.A) The lack of clues about the species. C) Endless fighting in the region. B) Inadequate funding for research. D) The hazards from the desert.6.A) To observe the wildlife in the two national parks.B)To study the habitat of lions in Sudan and Ethiopia.C)To identify the reasons for the lions’ disappearance.D)To find evidence of the existence of the “lost lions”.7.A) Lions’ tracks. C) Some camping facilities.B)Lions walking. D) Traps set by local hunters.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 asingle line through the centre.Questions 8 to 11 are based on the conversation you have just heard.8. A) A special gift from the man. C) A call from her dad.B) Her wedding anniversary. D) Her ‘lucky birthday’.9. A) Threw her a surprise party. C) Bought her a gold necklace.B) Took her on a trip overseas. D) Gave her a big model plane.10.A) What her husband and the man are up to. B)What has been troubling her husband.C)The trip her husband has planned.D)The gift her husband has bought.11.A) He wants to find out about the couple’s holidayplan.B)He is eager to learn how the couple’s holiday turns out.C)He will tell the women the secret if her husband agrees.D)He will be glad to be a guide for the couple’s holiday trip.Questions 12 to 15 are based on the conversation you have just heard.12.A) They take the rival’s attitude into account. B)They know when to adopt a tough attitude.C)They see the importance of making compromises.D)They are sensitive to the dynamics of a negotiation.13. A) They know when to stop. C) They know when to make compromises.B) They know how to adapt. D) They know how to control their emotion.14. A) They are patient. C) They are good at expression.B) They learn quickly. D) They uphold their principles.15. A) Clarify items of negotiation. C) Get to know the other side.B) Make clear one's intentions. D) Formulate one's strategy.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), 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) How space research benefits people on Earth.B)When the International Space Station was built.C)How many space shuttle missions there will be.D)When America's earliest space program started.17.A) They tried to make best use of the latest technology. B) They tried to meet astronauts' specificrequirements.C)They developed objects for astronauts to use in outer space.D)They accurately calculated the speed of the orbiting shuttles.18.A) They are expensive to make. C) They were first made in space.B)They are extremely accurate. D) They were invented in the 1970s.Questions 19 to 21 are based on the passage you have just heard.19.A) Everything was natural and genuine then.B)People had plenty of land to cultivate then. C) It marked the beginning of something new.D) It was when her ancestors came to America.20.A) They were known to be creative. C) They had all kinds of entertainment. B) They enjoyedliving a living a life of ease. D) They believed in working for goals.21.A) Chatting with her ancestors. C) Furnishing her country house. B) Doing needlework by the fire.D) Polishing all the silver work. Questions 22 to 25 are based on the passage you have just heard.22.A) Sit down and try to calm yourself. C) Use a map to identify your location.B)Call your family or friends for help. D) Try to follow your footprints back.23.A) You may end up entering a wonderland. B) You may get drowned in a sudden flood.C)You may expose yourself to unexpected dangers.D)You may find a way out without your knowing it.24. A) Wait patiently. C) Start a fire.B) Look for food. D) Walk uphill.25. A) Check the local weather. C) Prepare enough food and drink.B) Find a map and a compass. D) Inform somebody of your plan.Part Ⅲ Reading Comprehension ( 40 minutes )Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.Questions 26 to 35 are based on the following passage.A rat or pigeon might not be the obvious choice to tend to someone who is sick, but these creatures have some 26 skills that could help the treatment of human diseases.Pigeons are often seen as dirty birds and an urban 27 , but they are just the latest in a long line of animals that have been found to have abilities to help humans. Despite having a brain no bigger than the 28 of your index finger, pigeons have a very impressive 29 memory. Recently it was shown that they could be trained to be as accurate as humans at detecting breast cancer in images.Rats are often 30 with spreading disease rather than 31 it, but this long-tailed animal is highly 32 . Inside a rat's nose are up to 1,000 different types of olfactory receptors (嗅觉感受器), whereas humans only have 100 to 200 types. This gives rats the ability to detect 33 smells. As a result, some rats are being put to work to detect TB(肺结核). When the rats detect the smell, they stop and rub their legs to 34 a sample is infected.Traditionally, a hundred samples would take lab technicians more than two days to 35 , but for a rat it takes less than 20 minutes. This rat detection method doesn't rely on specialist equipment. It is also more accurate — the rats are able to find more TB infections and, therefore, save more lives.Section BDirections:In this section, you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.Do In-Class Exams Make Students Study Harder?Research suggests they may study more broadly for the unexpected rather than search for answers.[A]I have always been a poor test-taker. So it may seem rather strange that I have returned to college to finish the degree I left undone some four decades ago. I am making my way through Columbia University, surrounded by students who quickly supply the verbal answer while I am still processing the question.[B]Since there is no way for me to avoid exams, I am currently questioning what kind are the most taxing and ultimately beneficial. I have already sweated through numerous in-class midterms and finals, and now I have a professor who issues take-home ones. I was excited when I learned this, figuring I had a full week to do the research, read the texts, and write it all up. In fact, I was still rewriting my midterm the morning it was due. To say I had lost the thread is putting it mildly. [C]As I was suffering through my week of anxiety, overthinking the material and guessing my grasp of it, I did some of my own polling among students and professors. David Eisenbach, who teaches a popular class on U.S. presidents at Columbia, prefers the in-class variety. He believes students ultimately learn more and encourages them to form study groups.“That way they socialize over history outside the class, which wouldn’t happen without the press ure of an in-class exam,” he explained, “Furthermore, in-class exams force students to learn how to perform under pressure, and essential work skill.”[D] He also says there is less chance of cheating with the in-class variety. In 2012, 125 students at Harvard were caught up in a scandal when it was discovered they had cheated on a take-home exam for a class entitled “Introduction To Congress.”Some colleges have what they call an “honor code,” though if you are smart enough to get into these schools, you are either smart enough to get around any codes or hopefully, too ethical to consider doing so. As I sat blocked and clueless for two solid days, I momentarily wondered if I couldn’t just call an expert on the subject matter which I was tackling, or someone who took the class previously, to get me going.[E]Following the Harvard scandal, Mary Miller, the former dean of students at Yale, made an impassioned appeal to her school’s professors to refrain from take-hone exams. “Students risk health and well bein g, as well as performance in other end-of-term work, when faculty offers take-home exams without clear, time-limited boundaries,” she told me. “Research now shows that regular quizzes, short essays, and other assignments over the course of a term better e nhance learning and retention.”[F]Most college professors agree the kind of exam they choose largely depends on the subject. A quantitative-based one, for example, is unlikely to be sent home, where one could ask their older brothers and sisters to help. Vocational-type classes, such as computer science or journalism, on the other hand, are often more research-oriented and lend themselves to take-home testing. Chris Koch, who teaches “History of Broadcast Journalism” at Montgomery Community College in Rockvi lle, Maryland, points out that reporting is about investigation rather than the memorization of minute details. “In my field, it’s not what you know—it’s what you know how to find out,” says Koch. “There is way too much information, and more coming all the time, for anyone to remember. I want my students to search out the answers to questions by using all the resources available to them.[G]Students’ test-form preferences vary, too, often depending on the subject and course difficulty. “I prefer take-home essays because it is then really about the writing, so you have time to edit and do more research,” says Elizabeth Dresser, a junior at Barnard. Then there is the stress factor. Francesca Haass, a senior at Middlebury, says, “I find the in-class ones are more stressful in the short term, but there is immediate relief as you swallow information like mad, and then you get to forget it all. Take-homes require thoughtful engagement which can lead to longer term stress as there is never a moment when the time is up.” Meanwhile, Olivia Rubin, a sophomore at Emory, says she hardly even considers take-homes true exams. “If you understand the material and have the ability to articulate (说出) your thoughts, they should be a breeze.” [H] How students ultimately handle stress may depend on their personal test-taking abilities. There are people who always wait until the last minute, and make it much harder than it needs to be. And then there those who, not knowing what questions are coming at them, and having no resources to refer to, can freeze. And then there are we rare folks who fit both those descriptions.[I]Yes, my advanced age must factor into the equation (等式), in part because of my inability to access the information asquickly. A s another returning student at Columbia, Kate Marber, told me, “We are learning not only all this information, but essentially how to learn again. Our fellow students have just come out of high school. A lot has changed since we were last in school.”[J]If nothing else, the situation has given my college son and me something to share, When I asked his opinion on this matter, he responded, “I like in-class exams because the time is already reserved, as opposed to using my free time at home to work on a test,” he responded. It seems to me that a compromise would be receiving the exam questions a day or two in advance, and then doing the actual test in class the ticking clock overhead.[K]Better yet, how about what one Hunter College professor reportedly did recently for her final exam: She encouraged the class not to stress or even study, promising that, “It is going to be apiece of cake.” When the students came in, sharpened pencils in hand, there was not a bluebook in sight. Rather, they saw a large chocolate cake and they each were given a slice.36.Elderly students find it hard to keep up with the rapid changes in education.37.Some believe take-home exams may affect students' performance in other courses.38.Certain professors believe in-class exams are ultimately more helpful to students.39.In-class exams are believed to discourage cheating in exams.40.The author was happy to learn she could do some exams at home.41.Students who put off their work until the last moment often find the exams more difficult than they actually are.42.Different students may prefer different types of exams.43.Most professors agree whether to give an in-class or a take-home exam depends on type of course being taught.44.The author dropped out of college some forty years ago.45.Some students think take-home exams will eat up their free time.Section CDirections: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 and 50 are based on the following passage.That people often experience trouble sleeping in a different bed in unfamiliar surroundings is a phenomenon known as the “first-night” effect. If a person stays in the same room the following night they tend to sleep more soundly. Yuka Sasaki and her colleagues at Brown University set out to investigate the origins of this effect.Dr. Sasaki knew the first-night effect probably has something to do with how humans evolved. The puzzle was what benefit would be gained from it when performance might be affected the following day. She also knew from previous work conducted on birds and dolphins that these animals put half of their brains to sleep at a time so that they can rest while remaining alert enough to avoid predators (捕⾷者). This led her to wonder if people might be doing the same thing. To take a closer look, her team studied 35 healthy people as they slept in the unfamiliar environme nt of the university’s Department of Psychological Sciences. The participants each slept in the department for two nights and were carefully monitored with techniques that looked at the activity of their brains. Dr. Sasaki found, as expected, the participants slept less well on theirfirst night than they did on their second, taking more than twice as long to fall asleep and sleeping less overall. During deep sleep, the participants’ brains behaved in a similar manner seen in birds and dolphins. On the firs t night only, the left hemispheres (半球) of their brains did not sleep nearly as deeply as their right hemispheres did.Curious if the left hemispheres were indeed remaining awake to process information detected in the surrounding environment, Dr. Sasaki re-ran the experiment while presenting the sleeping participants with a mix of regularly timed beeps (蜂鸣声) of the same tone and irregular beeps of a different tone during the night. She worked out that, if the left hemisphere was staying alert to keep guard in a strange environment, then it would react to the irregular beeps by stirring people from sleep and would ignore the regularly timed ones. This is precisely what she found.46.What did researchers find puzzling about the first-night effect?A)To what extent it can trouble people. C) What circumstances may trigger it.B)What role it has played in evolution. D) In what way it can be beneficial.47.What do we learn about Dr. Yuka Sasaki doing her research? A) She found birds and dolphins remain alert while asleep.B) She found birds and dolphins sleep in much the same way. C)She got some idea from previous studies on birds and dolphinsD) She conducted studies on birds’ and dolphins’ sleeping patterns.48.What did Dr. Sasaki do when she first did her experiment?A)She monitored the brain activity of participants sleeping in a new environment.B)She recruited 35 participants from her Department of Psychological Sciences.C)She studied the differences between the two sides of participants’ brains.D)She tested her findings about birds and dolphins on human subjects.49.What did Dr. Sasaki do when re-running her experiment?A)She analyzed the negative effect of irregular tones on brains.B)She recorded participants’ adaptation to changed environment.C)She exposed her participants to two different stimuli.D)She compared the responses of different participants.50.What did Dr. Sasaki find about the participants in her experiment? A) They tended to enjoy certain tones more than others.B)They tended to perceive irregular beeps as a threat.C)They felt sleepy when exposed to regular beeps.D)They differed in their tolerance of irregular tones.Passage TwoQuestions 51 to 55 are based on the following passage.It’s time to reevaluate how women handle conf lict at work. Being overworked or over-committed at home and on the job will not get you where you want to be in life. It will only slow you down and hinder your career goals.Did you know women are more likely than men to feel exhausted? Nearly twice as many women than men ages 18-44 reported feeling “very tired” or “exhausted”, according to a recent study.This may not be surprising given that this is the age range when women have children. It's also the age range when many women are trying to balance careers and home. One reason women may feel exhausted is that they have a hard time saying "no." Women want to be able to do it all volunteer for school parties or cook delicious meals-and so their answer to any request is often “Yes, I can.”Women struggle to say “no” in the workplace for similar reasons, including the desire to be liked by their colleagues. Unfortunately, this inability to say "no" may be hurting women's heath as well as their career.At the workplace, men use conflict as a way to position themselves, while women often avoid conflict or strive to be the peacemaker, because they don't want to be viewed as aggressive or disruptive at work. For example, ther e’s a problem that needs to be addressed immediately, resulting in a dispute over should be the one to fix it. Men are more likely to face that dispute from the perspective of what benefits them most, whereas women may approach the same dispute from the perspective of what's the easiest and quickest way to resolve the problem-even if that means doing the boring work themselves.This difference in handling conflict could be the deciding factor on who gets promoted to a leadership position and who does not. Leaders have to be able to delegate and manage resources wisely – including staff expertise. Shouldering more of the workload may not earn you that promotion. Instead, it may highlight your inability to delegate effectively.51.What does the author say is the problem with women?A)They are often unclear about the career goals to reach.B)They are usually more committed at home than on the job.C)They tend to be over-optimistic about how far they could go.D)They tend to push themselves beyond the limits of their ability.52.Why do working women of child-bearing age tend to feel drained of energy? A) They struggle to satisfy the demandsof both work and home.B)They are too devoted to work and unable to relax as a result.C)They do their best to cooperate with their workmates.D)They are obliged to take up too many responsibilities.53.What may hinder the future prospects of career women?A)Their unwillingness to say “no”.B)Their desire to be considered powerful.C)An underestimate of their own ability.D)A lack of courage to face challenges.54.Men and woman differ in their approach to resolving workplace conflicts in that______.A)women tend to be easily satisfiedB)men are generally more persuasiveC)men tend to put their personal interests first D) women are much more ready to compromise55.What is important to a good leader?A)A dominant personality. C) The courage to admit failure B) The ability to delegate. D) A strong sense of responsibility.Part Ⅳ Translation (30 minutes)Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese intoEnglish. You should write your answer on Answer Sheet 2.泰⼭位于⼭东省西部。
17春西南交《大学英语Ⅰ》在线作业一
17春西南交《大学英语Ⅰ》在线作业一17春西南交《大学英语Ⅰ》在线作业一答案一、单选题（共40 道试题，共100 分。
）1. Some first-generation college students carry __________ hopes and dreams of __________ parents for a better life than they have had.A. /, theirB. their, theC. the, theirD. the, /正确答案：2. — ____________________________ — Won't you have another coffee?A. Thank you very much for a wonderful partyB. I’m glad to have met you.C. Thanks for all your hospitality.D. Sorry, it's time I left now.正确答案：3. She is a creature of emotions, ______ reason.A. thanB. but thanC. rather thanD. other than正确答案：4. I couldn’t __________ who he was.A. find outB. set outC. fill outD. figure out正确答案：5. –How are you getting on with your study? –（）A. Thanks. And you?B. I hope all goes well with you.C. Terrible.D. Not at all.正确答案：6. The school will give ____________ to science, math and modern languages.A. balanceB. surroundingsC. hobby正确答案：7. In the next five years, we will see some ______ recovery.A. economyB. economicC. economicalD. economized正确答案：8. Be quiet ____________ you should wake the baby.A. in any caseB. in caseC. in case ofD. in no case正确答案：9. She is ______ to accept change, though she has been living in the small village for 0 years.A. likeB. likelyC. unlikelyD. alike正确答案：10. The number of deaths from heart disease will be reduced greatly if people ____________ to eat more fruit and vegetables.A. persuadeB. will persuadeC. be persuadedD. are persuaded正确答案：11. ____________ his homework, he went to watch TV.A. Having finishedB. FinishedC. FinishingD. To finish正确答案：12. The Gadfly insisted that the work __________ be finished by the middle of June.A. mustB. couldC. shouldD. might正确答案：13. It will be a long time before we arrive, so ____________ every chance to rest.A. giveB. makeC. followD. take14. It is good for you to have such a good chance to study abroad, but it remains ____________ whether you can really learnsomething useful.A. to be seenB. to seeC. seenD. seeing正确答案：15. It is a(an) ______ of setting your goals and following them.A. thingB. eventC. matterD. affair正确答案：16. __________ Shangrila Hotel is just __________ fifteen-minute walk from __________ university campus.A. The, a, aB. /, a, /C. /, a, theD. The, a, the正确答案：17. This method is ______ which saves us half of the time and effort.A. efficientB. effectiveC. influentialD. fruitful正确答案：18. They said that food supplies were almost ____________.A. existedB. enteredC. exhaustedD. enquired正确答案：19. –What about going shopping together? –_________________A. It sounds good.B. I prefer go alone.C. I am occupied.D. I have no time.正确答案：20. When she got home after school, she turned on the TV ______ did her homework.A. butB. notC. thanD. rather than21. Mr. White ____________ at :0 for the meeting, but he didn’t turn up.A. should have arrivedB. should arriveC. should have had arrivedD. should be arriving正确答案：22. Good communicative skills are ______ importance to a good leader.A. withB. atC. ofD. by正确答案：23. – How do you think about the result? – _________________A. It’s hard to say, actually.B. No, I don’t know.C. of course not.D. I never think of it.正确答案：24. --What do you think of the new magazine? -- Oh, excellent. It’s worth ____________.A. to readB. to be readC. readingD. being read正确答案：25. A man I easily ______ as Bob’s father sat ther e with a newspaper in hands.A. knewB. understoodC. hadD. recognized正确答案：26. Beat in the eggs, one ______.A. at a timeB. at any timeC. at timesD. at one time正确答案：27. There is no reason for you ______ her honesty.A. not believeB. not believingC. not to believeD. to not believe正确答案：28. –I believe they have finished their tasks. –_________________A. No, I’d rather not.B. No, it can’t be true.C. No, I don’t think so.D. No, it isn’t the same.正确答案：29. Women ____________ going out without a veil.A. are forbidden fromB. are forbade fromC. are forbidden toD. are forbade to正确答案：30. As days went by, a deep friendship began to ______ between them.A. becomeB. developC. comeD. stand正确答案：31. –Hi, I’m your roommate, Carey Clark. –（）A. This way, please.B. Oh, yes.C. Good.D. Oh, nice to meet you.正确答案：32. __________ violin is one of __________ hardest musical instruments to play.A. The, theC. /, theD. /, /正确答案：33. In the area, AIDS is __________ disease that the very mention of it strikes terror into the population.A. a so dreadfulB. so dreadful aC. such dreadfulD. a such dreadful正确答案：34. Whenever he meets with a new word, he will ______a dictionary.A. look it upB. look it inC. look it up inD. look it with正确答案：35. We’d better focus on the program that caters ______ the needs of children.A. onB. withC. forD. in正确答案：36. –Haven’t seen you for ages. How’s it going? –（）A. Haven’t seen you for ages.B. Yes, long time no see.C. How are you?D. Everything is all right.37. I can’t ____________ time away from my work.A. entertainB. containC. sootheD. spare正确答案：38. –How are you getting on？–（）A. Very well. Thank you.B. You’re welcome.C. Not at all.D. I don’t know.正确答案：39. I will never again ____________ the noble potato, golden fruit of the earth, to which we owe so much.A. take offB. take backC. take sth. for grantedD. take down正确答案：40. It’s __________ windy day. Let’s stay indoors.A. a suchB. such aC. a soD. so a正确答案：。
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西南交《大学英语Ⅳ》在线作业一试卷总分：100 测试时间：--参考答案见最后一页单选题一、单选题（共40 道试题，共100 分。
）V1. It is fixed ________ at seven tomorrow morning.A. if we'll start outB. that we'll start outC. when we'll start outD. are we going to start out满分：2.5 分2. The teacher ______ be in the office; maybe he is in the library.A. mightB. couldC. may notD. can not满分：2.5 分3. The police have begun to ______ the murder case, but in vain.A. look intoB. look upC. look outD. look after满分：2.5 分4. When he was a boy he ________ his talent for writing.A. demonstratedB. clarifiedC. illustratedD. approved满分：2.5 分5. You'll have more chances of promotion ______ you work hard.A. sinceB. whileC. asD. once满分：2.5 分6. ________ the football game will be played depends on the weather.A. IfB. ThatC. WhetherD. Since满分：2.5 分7. ______ would like to help, I have other work to do.A. Much as IB. As much IC. How much as ID. Much I满分：2.5 分8. Why not ______ to Professor Chen for advice? He is an expert in this field.A. goB. to goC. you goD. your going满分：2.5 分9. She is regarded as a ______ teacher.A. respectiveB. respectableC. respectfulD. respecting满分：2.5 分10. Everything I've described went wrong. ____________, the wholeaffair was a disaster.A. In kindB. In allC. In shortD. In general满分：2.5 分11. The traffic police were searching for evidence to prove the man's______.A. mistakeB. faultC. shortcomingD. error满分：2.5 分12. He says he will tell ________ wants to know.A. whateverB. whoeverC. whicheverD. who满分：2.5 分It is understood that the filming of Legends is almost complete and 13.the film is not ____________ to be delayed.A. possibleB. likelyC. easyD. available满分：2.5 分14. My brother's plans are very ; he wants to master English, French and Spanish before he is sixteen.A. abundantB. ambitiousC. arbitraryD. aggressive满分：2.5 分15. Dust quickly ______ if we don't sweep our floor.A. accumulatesB. collectsC. gathersD. increase满分：2.5 分16. Parents need to be fully informed so they can make a ______ decision.A. rationalB. rightC. profitableD. beneficial满分：2.5 分17. The article made no ______ to previous research on the subject.A. researchesB. entrancesC. accessesD. references满分：2.5 分18. The industrial community should be distant enough from the crowedcenter to reduce ____________dangers.A. feasibleB. positiveC. potentialD. substantial满分：2.5 分19. In no country ____________ Britain, it has been said, can one experience four seasons in the course of a single day.A. other thanB. more thanC. better thanD. rather than满分：2.5 分20. The project is designed to provide young people ________ work.A. forB. withC. toD. as满分：2.5 分21. Computer technology will _____ a revolution in business administration.A. bring aroundB. bring aboutC. bring downD. bring up满分：2.5 分22. Mary ____________her classmates has learned how to deal with the complicated problem.A. andB. and alsoC. as well asD. except满分：2.5 分23. It was several minutes before I was ____________ of what was happening.A. knowB. realizeC. wearD. aware满分：2.5 分24. Within two days, the army fired more than two hundred missiles at military _____in the coastal city.A. goalsB. aimsC. targetsD. destinations满分：2.5 分25. _____ I admire David as a poet, I do not like him as a man.A. Much asB. Only ifC. If onlyD. As much满分：2.5 分26. Arriving home, the boy told his parents about all the _____ which occurred in his dormitory.A. occasionsB. factorsC. incidentsD. issues满分：2.5 分27. Showing some sense of humor can be an effective way to_________some stressful situationA. deal withB. deal inC. deal aboutD. deal off满分：2.5 分28. Would you tell me ________?A. where is the post officeB. where stands the post officeC. where the post office isD. where stood the post office满分：2.5 分29. Floods cause billions of dollars worth of property damage____________.A. relativelyB. actuallyC. annuallyD. comparatively满分：2.5 分30. Only in our country ______ serve the interests of the people.A. science canB. science couldC. can scienceD. could science满分：2.5 分31. - Will you be able to come to the meeting? _____________A. I'm afraid notB. I'm sorry notC. I'm not afraid soD. I'm sorry that “no”满分：2.5 分32. Fresh vegetables were ______during the World War II.A. lackB. scarceD. sparse满分：2.5 分“Have you gone to see the doctor?”“No, but______.”33.A. I goB. I'm going to seeC. I go to seeD. I'm going to满分：2.5 分34. I want to go to the dentist, but you ______ with me.A. need not to goB. do not need goC. need not goD. need go not满分：2.5 分35. ________ is what I am anxious to know.A. How do you get rid of miceB. How you get rid of miceC. How can you get rid of miceD. How could you get rid of mice满分：2.5 分36. We were all eager to express our own opinion, but strange enough, no one was ______ to break the ice.A. hopefulB. kindC. generousD. willing满分：2.5 分37. We should not talk about other people's ______ life.A. privateB. individualC. ownD. specific满分：2.5 分38. One reason is that banks must ________ customers, who will switch to another bank if they are not satisfied.A. compete forB. compete againstC. compete withD. compete in满分：2.5 分39. It is said in some parts of the world, goats, rather than cows, serve as a vital _____of milk.A. storageC. resourceD. source分2.5 满分：40. My trousers ______ when I tried to jump over the fence.A. crackedB. splitC. brokeD. burst满分：2.5 分请同学及时保存作业,如您在20分钟内不作操作,系统将自动退出。