《2020-2021年英语四级考试真题及答案(第2套).pdf》由会员分享，可在线阅读，更多相关《2020-2021年英语四级考试真题及答案(第2套).pdf（33页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、精品欢迎下载可修改大学英语四级考试真题(第 2 套)Part I Writing (30 minutes)Directions：for this part，you are allowed 30 minutes to write an essay based onthe picture belowYou should start your essay with a brief description of the picture and then commenton this kind of modern life You should write at least l20 words but
2、no more thanl80words Part lI Listening Comprehension(30 minutes)Section A Directions：In this section，you will hear 8 short conversations and 2 longconversationsAt the end of each conversation，one or more questions will be askedabout what Was saidBoth the conversation and the questions will be spoken
3、 onlyonceAfter each question there will be a pause During the pause，you must readthefour choices marked A.，B)，C)and D)and decide which is the best answerThenmark the corresponding letter on AnswerSheet l with a single line through the centre1A.He is pleased to sit on the committeeB.He iS willing to
4、offer the woman a handC.He will tell the woman his decision laterD.He would like to become a club member2A.Their planned trip to Vancouver is obviously overpricedB.They should borrow a guide book instead of buying oneC.The guide books in the library have the latest informationD.The library Can help
5、order guide books about Vancouver3A.He regrets having taken the history courseB.He finds little interest in the history booksC.He has trouble finishing his reading assignmentsD.He has difficulty writing the weekly book report4A.The man had better choose another restaurantB.The new restaurant is a pe
6、rfect place for datingC.The new restaurant caught her fancy immediatelyD.The man has good taste in choosing the restaurant5A.He has been looking forward to springB.He has been waiting for the winter sale精品欢迎下载可修改C.He will clean the woman，s boots for springD.He will help the woman put things away6A.A
7、t a tailorsB.At Bobs homeC.In a clothes storeD.In a theatre7A.His guests favor Tibetan drinksB.His water is quite extraordinaryC.Mineral water is good for healthD.Plain water will serve the purpose8A.Report the result of a discussionB.Raise some environmental issuesC.Submit an important documentD.Re
8、vise an environmental reportQuestions 9 t0 12 are based on the conversation you have just heard9A.They pollute the soil used to cover themB.They are harmful to nearby neighborhoodsC.The rubbish in them takes long to dissolveD.The gas they emit is extremely poisonous10A.Growing populationB.Packaging
9、materialsC.Changed eating habitsD.Lower production cost11A.By saving energyB.By using less aluminumC.By reducing poisonous wastesD.By making the most of materials12A.We are running out of natural resources soonB.Only combined efforts can make a differenceC.The waste problem will eventually hurt all
10、of usD.All of us can actually benefit from recyclin9Questions l3 to 15 are based on the conversation you have just heard13A.MiamiB.VancouverC.Belling hamD.Boston14A.To get information on oneway tickets to CanadaB.To inquire about the price of“Super Saver”seatsC.To get advice on how to fly as cheaply
11、 as possibleD.To inquire about the shortest route to drive home15A.Join a tourist groupB.Choose a major airlineC.Avoid trips in public holidaysD.Book tickets as early as possible精品欢迎下载可修改Section BDirections：n this section，you will hear 3 short passages At the end of eachpassage，you will hear some qu
12、estions Both the passage and the questions will bespoken only onceAfter you hear a question，you must choose the best answer fromthe four choices marked A.，B)，C.and D)Then mark the corresponding letter on AnswerSheet l with a single line through the centrePassage OneQuestions l6 t0 18 are based on th
13、e passage you have just heard16A.There are mysterious stories behind his worksB.There are many misunderstandings about himC.His works have no match worldwideD.His personal history is little known17A.He moved to Strat fordonAvon in his childhoodB.He failed to go beyond grammar sch001C.He was a member
14、 of the town councilD.He once worked in a wellknown acting company18A.Writers of his time had no means to protect their worksB.Possible sources of clues about him were lost in a fireC.His works were adapted beyond recognitionD.People of his time had little interest in himPassage TwoQuestions l9 to 2
15、1 are based on the passage you have just heard19A.It shows you have been ignoring your healthB.It can seriously affect your thinking processC.It is an early warning of some illnessD.It is a symptom of too much pressure20A.Reduce our workloadB.Control our temperC.Use painkillers for reliefD.Avoid mas
16、king syrup toms_21A.Lying down and having some sleepB.Rubbing and pressing ones backC.Going out for a walkD.Listening to light musicPassage ThreeQuestions 22 t0 25 are based on the passage you have just heard22A.Depending heavily on loansB.Having no budget plans at allC.Spending beyond ones meansD.L
17、eaving no room for large bills23A.Many of them can be cutB.All of them have to be coveredC.Their payment cannot be delayedD.They eat up most of the family income精品欢迎下载可修改24A.Rent a house instead of buying oneB.Discuss the problem in the familyC.Make a conservation planD.Move to a cheaper Place25A.Fi
18、nancial issues plaguing a familyB.Difficulty in making both ends meetC.Family budget problems and solutionsD.New ways to boost family incomeSection C Directions：In this section，you will hear a passage three timesWhen the passageis read for the first time,you should listen carefully for its general i
19、dea Whenthe passage Its read for the second time,you are required to fill in the blanks withthe exact words you have just heardFinally，when the passage is read for the thirdtime，you should check what you have writtenPerhaps because going to college is so much a part of the American dream，many people
20、go for no 26 reason Some go because their parents expect it，others because itswhat their friends are doing.Then，there，s the belief that a college degree will27ensure a good job and high pay.Some students 28 through four years，attending classes，or skipping(逃课)them asthe case may be，reading only what
21、cant be avoided，looking for less 29courses，and never being toucned or changed in any important way For a few of these people，college provides no 30，yetBecause of parental or peer pressure，they cannotvoluntarily leaveThey stop trying in the hope that their tea。chers will nmke thedecision for them by
22、31 themTo put it bluntly(直截了当地)，unless youre willing to ma ke your college yearscount，Y0u might be32 doing something else Not everyone should attend college，nor should everyone who doe Sattend begin right after high school Many collegestudents 33 taking a year or so 0ff.A year out m the world helps
23、some people to 34their priorities and goals If youre really going to get something out of goingto college，you have to make it mean something，and to do that you must have someidea why youre there，what you hope to get out of it，and35 even what you hope tobecome.Part HI Reading Comprehension(40 minutes
24、)Section A Directions：n this section，there is a passage with ten blanksYou are requiredto select one word for each blank from a list of choices given in a word bank followingthe passage.Read the passage through carefully before making your choices Eachchoice in the bank is identified by a letterPlea
25、se mark the corresponding letterforeach item on Answer Sheet 2 with a single line through the centreYou may not useany of the words in the bank more than onceQuestions 36 t0 45 are based on the following passageIts our guilty pleasure：Watching TV is the most comtion everyday activity，afterwork and s
26、leep，in many parts of the world Americans view five hours of TV eachday，and while we know that spending so much time sitting36 can lead toobesity(肥精品欢迎下载可修改胖症)and other diseases，researchers have now quantified just how 37 being a couchpotato can beIn an analysis of data from eight large 38 published
27、 studies，a Harvardled groupreported in the that for every two hours per day spent channel 39，the risk ofdeveloping Type 2 diabetes Journal of the American Medical Association(糖尿病)rose20over 85 years，the risk of heart disease increased l5 over a 40，and theodds of dying prematurely 41 13 during a seve
28、n year followupAll of these42 are linked to a lack of physical exerciseBut compared with other sedentary(久坐的)activities，like knitting，viewing TV may be especially 43 at promotingunhealthy habitsFor one，the sheer number of hours we pass watching TV dwarfs thetime we spend on anything else And other s
29、tudies have foundthat watching ads forbeer and popcorn may make you more likely to 44 themEven sothe authors admit that they didnt compare different sedentary activitiesto 45 whether TV watching was linked to a greater risk of diabetes，heart diseaseor early death compared with，say，readingA.climbedB.
30、consumeC.decadeD.determineE.effectiveF.harmfulG.outcomesH.passivelyI.previouslyJ.resumeK.sufferedL.surfingM.termN.terminals0.twistingSection BDirections：n this section，you are going to read a passage with ten statementsattached to it.Each statement contains information given in one of theparagraphsI
31、dentify the paragraph from which the information is derivedYou maychoose a paragraph more than once Each paragraph is marked with a letter Answerthe questions by marking the corresponding letter on Answer Sheet 2EssayGrading Software Offers Professors a BreakA.Imagine taking a college exam，and，inste
32、ad of handing in a blue book and gettinga grade from a professor a few weeks later，clicking the“send”button when you aredone and receiving a grade back instantly，your essay scored by a software program Andthen，instead of being done with that exam，imagine that the system would immediatelylet you rewr
33、ite the test to try to improve your gradeB.EDX，the nonprofit enterprise founded by Harvard and the Massachusetts Instituteof Technology(MIT)to offer courses on the Internet，has just introduced such a system精品欢迎下载可修改and will make its automated(自动的)software available free on the Web to anyinstitution
34、that wants to use itThe software uses artificial intelligence to gradestudent essays and short written answers，freeing professors for other tasksC.The new service will bring the educational consortium(联盟)into a growing conflictover the role of automation in education Although automated grading syste
35、ms formultiplechoice and truefalse tests are now widespread，the use of artificialintelligence technology to grade essay answers has not yet received widespreadacceptance by educators and has many critics.D.Anant Agarwal，an electrical engineer who is president of EDX，predicted that theinstantgrading
36、software would be a useful teaching tool enabling students to taketests and write essays over and over and improve the quality of their answersHesaid the technology would offer distinct advantages over the traditional classroomsystem，where students often wait days or weeks lor grades“There is a huge
37、 valuein learning with instant feedback，”DrAgarwal said“Students are telling usthey learn much better with instant feedback”E.But skeptics(怀疑者)say the automated system is no match for live teachersOnelongtime critic，Les Perelman，has drawn national attention several times forputting together nonsense
38、 essays that have fooled software grading programs intogiving high marksHe has also been highly critical of studies claiming that thesoftware compares well to human gradersF.He is among a group of educators who last month began circulating a petition(呼吁)opposing automated assessment softwareThe grou
39、p which calls itselfProfessionals Against Machine Scoring of Student Essays in HighStakes Assessment，has collected nearly 2，000 signatures，including some from famous people like NoanlChomskyG“Lets face the realities of automatic essay scorin9，”the groups statementreads in part.“Computers cannotreadT
40、hey cannot measure the essentials ofeffective written communication：accuracyreasonin9，adequacy of evidence，goodsense，ethical(伦理的)position，convincing argument，meaningful organization，andclarity，among others”H)But EdX expects its software to be adopted widely by schools and universitiesItoffers free o
41、nline classes from HarvardMIT and the University ofCaliforniaBerkeley；this fall，it will add classes from Well esleyGeorgetownand the University of TexasIn all，12 universities participate in EDX，which offerscertificates for course completion and has said that it plans to continue to expandnext year，i
42、ncluding adding international schoolsI.The EDX assessment tool requires human teachers，or graders，to first grade l00essays or essay questionsThe system then uses a variety of machinelearningtechniques to train itself to be able to grade any number of essays or answersautomatically and almost instant
43、ly The software will assign a grade depending onthe scoring system created by the teacher，whether it is a letter grade ornumerical(数字的)rankJ.EDX is not the first to use the automated assessment technology，which datesto early computers in the l960sThere is now a range of companies offering commercial
44、精品欢迎下载可修改programs to grade written testanswers，and four states-Louisiana，North Dakota，Utah and West Virginia-are using some formof the technology in secondary schools A fifth，Indiana，has experimented with it Insome cases the software is used as a“second reader”to check the reliability ofthe human gr
45、adersK.But the growing influence of the EDx consortium to set standards is likely to givethe technology aboost On Tuesday，Stanford announced that it would work with EDXto develop a joint educational system that will make use of the automated assessmenttechnologyL.Two startupsCoursera and Udacity，rec
46、ently founded by Stanford faculty membersto create“massive open online courses，”0r MOOCs，are also committed to automatedassessment systems because of the value of instant feedbackIt allows studentsto get immediate feedback on theirworkso that learning turns into a game，with students naturally gravit
47、ating(吸引)toward resubmitting the work until they get it right，”said Daphne Koller，acomputer scientist and afounder of CourseraMLast year the Hewlett Foundation，a grantmalting organization set up by oneof the Hewlett Packard founders and his wife sponsored two$100，000 prizes aimedat improving softwar
48、e that grades essays and short answersMore than l50 teamsentered each categoryA winner of one of the Hewlett contestsVik Paruchuri，was hired by E(to help design its assessment softwareN“One of our focuses is to help Mds learn how to think critically，”said VictorVuchic，a program officer at the Hewlet
49、t Foundation“Its probably impossibleto do that with multiple choice tests The challenge is that this requires humangraders，and so they cost a lot more and they take a lot more time“OMark DShermis，a professor at the University of Akron in Ohi0supervised theHewlett Foundations contest on automated ess
50、ay scoring and wrote a paper aboutthe experimentIn his view，the technology-though imperfect-has a place ineducational settingsPWith increasingly large classes，it is impossible for most teachers to givestudents meaningful feedback on writing assignments，he said Plus，he noted，criticsof the technology