1、大学英语六级卷三真题 2017 年 6 月及答案解析(总分：710.00，做题时间：120 分钟)一、Part I Writing (3(总题数：1，分数：106.50)1.Directions:Suppose you are asked to give advice on whether to attend college at home or abroad, write an essay to state your opinion. You are required to write at least 150 words but no more than 200 words.（分数：106
2、.50）_二、Part II Listening Co(总题数：2，分数：56.80)Questions 1 to 4 are based on the conversation you have just heard. （分数：28.40）A.He would feel insulted.B.He would feel very sad.C.He would be embarrassed.D.He would be disappointed.A.They are worthy of a prize.B.They are of little value.C.They make good rea
3、ding.D.They need improvement.A.He seldom writes a book straight through.B.He writes several books simultaneously.C.He draws on his real-life experiences.D.He often turns to his wife for help.A.Writing a book is just like watching a football match.B.Writers actually work every bit as hard as football
4、ers.C.He likes watching a football match after finishing a book.D.Unlike a football match, there is no end to writing a book.Questions 5 to 8 are based on the conversation you have just heard. （分数：28.40）A.Achievements of black male athletes in college.B.Financial assistance to black athletes in coll
5、ege.C.High college dropout rates among black athletes.D.Undergraduate enrollments of black athletes.A.They display great talent in every kind of game.B.They are better at sports than at academic work.C.They have difficulty finding money to complete their studies.D.They make money for the college but
6、 often fail to earn a degree.A.About 15%.B.Around 40%.C.Slightly over 50%.D.Approximately 70%.A.Coaches lack the incentive to graduate them.B.College degrees do not count much to them.C.They have little interest in academic work.D.Schools do not deem it a serious problem.三、Section B(总题数：2，分数：49.70)Q
7、uestions 9 to 12 are based on the passage you have just heard.（分数：28.40）A.Marketing strategies.B.Holiday shopping.C.Shopping malls.D.Online stores.A.About 50% of holiday shoppers.B.About 20-30% of holiday shoppers.C.About 136 million.D.About 183.8 million.A.They have fewer customers.B.They find it h
8、ard to survive.C.They are thriving once more.D.They appeal to elderly customers.A.Better quality of consumer goods.B.Higher employment and wages.C.Greater varieties of commodities.D.People having more leisure time.Questions 13 to 15 are based on the passage you have just heard.（分数：21.30）A.They are n
9、ew species of big insects.B.They are overprescribed antibiotics.C.They are life-threatening diseases.D.They are antibiotic-resistant bacteria.A.Antibiotics are now in short supply.B.Many infections are no longer curable.C.Large amounts of tax money are wasted.D.Routine operations have become complex
10、.A.Facilities.B.Expertise.C.Money.D.Publicity.四、Section C(总题数：3，分数：142.00)Questions 16 to 18 are based on the recording you have just heard.（分数：42.60）A.It is accessible only to the talented.B.It improves students ability to think.C.It starts a lifelong learning process.D.It gives birth to many emine
11、nt scholars.A.They encourage academic democracy.B.They promote globalization.C.They uphold the presidents authority.D.They protect students rights.A.His thirst for knowledge.B.His eagerness to find a job.C.His contempt for authority.D.His potential for leadership.Questions 19 to 22 are based on the
12、recording you have just heard.（分数：56.80）A.Few people know how to retrieve information properly.B.People can enhance their memory with a few tricks.C.Most people have a rather poor long-term memory.D.People tend to underestimate their mental powers.A.They present the states in a surprisingly differen
13、t order.B.They include more or less the same number of states.C.They are exactly the same as is shown in the atlas.D.They contain names of the most familiar states.A.Focusing on what is likely to be tested.B.Having a good sleep the night before.C.Reviewing your lessons where the exam is to take plac
14、e.D.Making sensible decisions while choosing your answers.A.Discover when you can learn best.B.Change your time of study daily.C.Give yourself a double bonus afterwards.D.Follow the example of a marathon runner.Questions 23 to 25 are based on the recording you have just heard.（分数：42.60）A.He is a pol
15、itician.B.He is a businessman.C.He is a sociologist.D.He is an economist.A.In slums.B.In Africa.C.In pre-industrial societies.D.In developing countries.A.They have no access to health care, let alone entertainment or recreation.B.Their income is less than 50% of the national average family income.C.
16、They work extra hours to have their basic needs met.D.Their children cannot afford to go to private schools.五、Part III Reading Com(总题数：1，分数：35.50)Half of your brain stays alert and prepared for danger when you sleep in a new place, a study hasrevealed. This phenomenon is often (26)_to as the “first-
17、night-effect”. Researchers from BrownUniversity found that a network in the left hemisphere of the brain “remained more active” than the network in the right side of the brain. Playing sounds into the right ears (stimulating the left hemisphere) of (27)_ was more likely to wake them up than if the n
18、oises were played into their left ears. It was (28)_ observed that the left side of the brain was more active during deep sleep. Whenthe researchers repeated the laboratory experiment on the second and third nights they found the left hemisphere could not be stimulated in the same way during deep sl
19、eep. The researchers explained thatthe study demonstrated when we are in a (29)_ environment the brain partly remains alert so thathumans can defend themselves against any (30) _ danger. The researchers believe this is the first time that the “first-night-effect” of different brain stateshas been (3
20、1)_ in humans. It isn?t, however, the first time it has ever been seen. Some animal(32)_ also display this phenomenon. For example, dolphins, as well as other (33)_ animals, shut down one hemisphere of the brain when they go to sleep. A previous study noted thatdolphins always (34)_ control their br
21、eathing. Without keeping the brain active while sleeping,they would probably drown. But, as the human study suggests, another reason for dolphins keepingtheir eyes open during sleep is that they can look out for (35) _ while asleep. It also keeps theirphysiological processes working. 注意：此部分试题请在答题卡 2
22、 上作答。 A) classified B) consciously C) dramatically D) exotic E) identified F) inherent G) marine H) novel I) potential J) predators K) referred L) species M) specifically N) varieties O) volunteers （分数：35.50）A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.A.
23、B.C.D.E.F.G.H.I.J.K.L.M.N.O.A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.六、Section B(总题数：1，分数：71.00)Elite Math Competitions Struggle to Diversify Their Talent Pool A
24、 Interest in elite high school math competitions has grown in recent years, and in light of last summers U.S. win at the International Math Olympiad (IMO)-the first for an American team in more than two decadesthe trend is likely to continue. B But will such contests, which are overwhelmingly domina
25、ted by Asian and white students from middle-class and affluent families, become any more diverse? Many social and cultural factors play roles in determining which promising students get on the path toward international math recognition. But efforts are in place to expose more black, Hispanic, and lo
26、w-income students to advanced math, in the hope that the demographic pool of high-level contenders will eventually begin to shift and become less exclusive. C “The challenge is if certain types of people are doing something, its difficult for other people to break into it,” said Po-Shen Loh, the hea
27、d coach of last years winning U.S. Math Olympiad team. Participation grows through friends and networks and if “you realize thats how theyre growing, you can start to take action” and bring in other students, he said. D Most of the training for advanced-math competitions happens outside the confines
28、 of the normal school day. Students attend after-school clubs, summer camps, online forums and classes, and university-based “math circles”, to prepare for the competitions. E One of the largest feeders for high school math competitionsincluding those that eventually lead to the IMOis a middle schoo
29、l program called Math Counts. About 100,000 students around the country participate in the programs competition series, which culminates in a national game-show-style contest held each May. The most recent one took place last week in Washington, D.C. Students join a team through their schools, which
30、 provide a volunteer coach and pay a nominal fee to send students to regional and state competitions. The 224 students who make it to the national competition get an all-expenses- paid trip. F Nearly all members of last years winning U.S. IMO team took part in Math Counts as middle school students,
31、as did Loh, the coach. “Middle school is an important age because students have enough math capability to solve advanced problems, but they havent really decided what they want to do with their lives,” said Loh. “They often get hooked then.” G Another influential feeder for advanced-math students is
32、 an online school called Art of Problem Solving, which began about 13 years ago and now has 15,000 users. Students use forums to chat, play games, and solve problems together at no cost, or they can pay a few hundred dollars to take courses with trained teachers. According to Richard Rusczyk, the co
33、mpany founder, the six U.S. team members who competed at the IMO last year collectively took more than 40 courses on the site. Parents of advanced- math students and Math Counts coaches say the children are on the website constantly. H There are also dozens of summer campsmany attached to universiti
34、esthat aim to prepare elite math students. Some are pricey-a three-week intensive program can cost $4,500 or morebut most offer scholarships. The Math Olympiad Summer Training Program is a three-week math camp held by the Mathematical Association of America that leads straight to the international c
35、hampionship and is free for those who make it. Only about 50 students are invited based on their performance on written tests and at the USA Math Olympiad. I Students in university towns may also have access to another lever for involvement in accelerated math: math circles. In these groups, which c
36、ame out of an Eastern European tradition of developing young talent, professors teach promising K-12 students advanced mathematics for several hours after school or on weekends. The Los Angeles Math Circle, held at the University of California, Los Angeles, began in 2007 with 20 students and now has
37、 more than 250. “These math circles cost nothing, or theyre very cheap for students to get involved in, but you have to know about them,” said Rusczyk. “Most people would love to get students from more underserved populations, but they just cant get them in the door. Part of it is communication; par
38、t of it is transportation.” J Its no secret in the advanced-math community that diversity is a problem. According to Mark Saul, the director of competitions for the Mathematical Association of America, not a single African-American or Hispanic student-and only a handful of girls-has ever made it to
39、the Math Olympiad team in its 50 years of existence. Many schools simply dont prioritize academic competitions. “Do you know who we have to beat?” asked Saul. “The football team, the basketball team-thats our competition for resources, student time, attention, school dollars, parent efforts, school
40、enthusiasm.” K Teachers in low-income urban and rural areas with no history of participating in math competitions may not know about advanced-math opportunities like Math Countsand those who do may not have support or feel trained to lead them. L But there are initiatives in place to try to get more
41、 underrepresented students involved in accelerated math. A New York City-based nonprofit called Bridge to Enter Mathematics runs a residential summer program aimed at getting underserved students，mostly black and Hispanic, working toward math and science careers. The summer after 7th grade, students
42、 spend three weeks on a college campus studying advanced math for seven hours a day. Over the next five years, the group helps the students get into other elite summer math programs, high-performing high schools, and eventually college. About 250 students so far have gone through the program, which
43、receives funding from the Jack Kent Cooke Foundation. M “If you look at a lot of low-income communities in the United States, there are programs that are serving them, but they re primarily centered around Lets get these kids grades up, and not around Lets get these kids access to the same kinds of
44、opportunities as more-affluent kids,” said Daniel Zaharopol, the founder and executive director of the program. “Were trying to create that pathway.” Students apply to the program directly through their schools. “We want to reach parents who are not plugged into the system,” said Zaharopol. N In the
45、 past few years, Math Counts added two new middle school programs to try to diversify its participant pool-the National Math Club and the Math Video Challenge. Schools or teachers who sign up for the National Math Club receive a kit full of activities and resources, but theres no special teacher tra
46、ining and no competition attached. O The Math Video Challenge is a competition, but a collaborative one. Teams of four students make a video illustrating a math problem and its real-world application. After the high-pressure Countdown round at this years national Math Counts competition, in which th
47、e top 12 students went head to head solving complex problems in rapid fire, the finalists for the Math Video Challenge took the stage to show their videos. The demographics of that group looked quite different from those in the competition round-of the 16 video finalists, 13 were girls and eight wer
48、e African-American students. The video challenge does not put individual students on the hot seat-so its less intimidating by design. It also adds the element of artistic creativity to attract a new pool of students who may not see themselves as “math people”.（分数：71.00）(1).Middle school is a crucial
49、 period when students may become keenly interested in advanced mathematics.（分数：7.10）A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.(2).Elite high school math competitions are attracting more interest throughout the United States.（分数：7.10）A.B.C.D.E.F.G.H.I.J.K.L.M.N.O.(3).Math circles provide students with access to advanced-math training by university professors.（分数：7.10）A.B.C.D.E.F.G
