[外语类试卷]2017年6月大学英语六级真题试卷（二）及答案与解析.doc

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1、2017年 6月大学英语六级真题试卷（二）及答案与解析 一、 Part I Writing 1 Directions: Suppose you are asked to give advice on whether to attend a vocational college or a university, write an essay to state your opinion. You are required to write at least 150 words but no more than 200 words. Section A （ A） He would be embarr

2、assed. （ B） He would feel very sad. （ C） He would feel insulted. （ D） He would be disappointed. （ A） They are of little value. （ B） They make good reading. （ C） They are worthy of a prize. （ D） They need improvement. （ A） He writes several books simultaneously. （ B） He draws on his real-life experie

3、nces. （ C） He often turns to his wife for help. （ D） He seldom writes a book straight through. （ A） Writing a book is just like watching a football match. （ B） Unlike a football match, there is no end to writing a book. （ C） He likes watching a football match after finishing a book. （ D） Writers act

4、ually work every bit as hard as footballers. （ A） Undergraduate enrollments of black athletes. （ B） Financial assistance to black athletes in college. （ C） High college dropout rates among black athletes. （ D） Achievements of black male athletes in college. （ A） They make money for the college but o

5、ften fail to earn a degree. （ B） They have difficulty finding money to complete their studies. （ C） They are better at sports than at academic work. （ D） They display great talent in every kind of game. （ A） Around 40%. （ B） Slightly over 50%. （ C） About 15%. （ D） Approximately 70%. （ A） College deg

6、rees do not count much to them. （ B） They have little interest in academic work. （ C） Schools do not deem it a serious problem. （ D） Coaches lack the incentive to graduate them. Section B （ A） Online stores. （ B） Marketing strategies. （ C） Shopping malls. （ D） Holiday shopping. （ A） About 136 millio

7、n. （ B） About 183.8 million. （ C） About 50% of holiday shoppers. （ D） About 20-30% of holiday shoppers. （ A） They appeal to elderly customers. （ B） They find it hard to survive. （ C） They have fewer customers. （ D） They are thriving once more. （ A） Higher employment and wages. （ B） Better quality of

8、 consumer goods. （ C） Greater varieties of commodities. （ D） People having more leisure time. （ A） They are life-threatening diseases. （ B） They are overprescribed antibiotics. （ C） They are new species of big insects. （ D） They are antibiotic-resistant bacteria. （ A） Routine operations have become

9、complex. （ B） Large amounts of tax money are wasted. （ C） Many infections are no longer curable. （ D） Antibiotics are now in short supply. （ A） Money. （ B） Expertise. （ C） Facilities. （ D） Publicity. Section C （ A） It improves students ability to think. （ B） It is accessible only to the talented. （

10、C） It starts a lifelong learning process. （ D） It gives birth to many eminent scholars. （ A） They protect students rights. （ B） They promote globalization. （ C） They uphold the presidents authority. （ D） They encourage academic democracy. （ A） His eagerness to find a job. （ B） His thirst for knowled

11、ge. （ C） His potential for leadership. （ D） His contempt for authority. （ A） People tend to underestimate their mental powers. （ B） Most people have a rather poor long-term memory. （ C） People can enhance their memory with a few tricks. （ D） Few people know how to retrieve information properly. （ A）

12、 They contain names of the most familiar states. （ B） They are exactly the same as is shown in the atlas. （ C） They include more or less the same number of states. （ D） They present the states in a surprisingly different order. （ A） Making sensible decisions while choosing your answers. （ B） Reviewi

13、ng your lessons where the exam is to take place. （ C） Having a good sleep the night before. （ D） Focusing on what is likely to be tested. （ A） Follow the example of a marathon runner. （ B） Give yourself a double bonus afterwards. （ C） Discover when you can learn best. （ D） Change your time of study

14、daily. （ A） He is a politician. （ B） He is a sociologist. （ C） He is a businessman. （ D） He is an economist. （ A） In slums. （ B） In Africa. （ C） In developing countries. （ D） In pre-industrial societies. （ A） Their children cannot afford to go to private schools. （ B） They work extra hours to have t

15、heir basic needs met. （ C） Their income is less than 50% of the national average family income. （ D） They have no access to health care, let alone entertainment or recreation. Section A 26 Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed. Thi

16、s phenomenon is often【 C1】 _ to as the “first-night-effect“. Researchers from Brown University 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【 C2】

17、_ was more likely to wake them up than if the noises were played into their left ears. It was【 C3】 _ observed that the left side of the brain was more active during deep sleep. When the researchers repeated the laboratory experiment on the second and third nights they found the left hemisphere could

18、 not be stimulated in the same way during deep sleep. The researchers explained that the study demonstrated when we are in a【 C4】 _ environment the brain partly remains alert so that humans can defend themselves against any【 C5】 _ danger. The researchers believe this is the first time that the “firs

19、t-night-effect“ of different brain states has been【 C6】 _ in humans. It isnt, however, the first time it has ever been seen. Some animal【 C7】 _ also display this phenomenon. For example, dolphins, as well as other【 C8】 _ animals, shut down one hemisphere of the brain when they go to sleep. A previou

20、s study noted that dolphins always【 C9】 _ control their breathing. Without keeping the brain active while sleeping, they would probably down. But, as the human study suggests, another reason for dolphins keeping their eyes open during sleep is that they can look out for【 C10】 _ while asleep. It also

21、 keeps their physiological processes working. A) classified I) potential B) consciously J) predators C) dramatically K) referred D) exotic L) species E) identified M) specifically F) inherent N) varieties G) marine O) volunteers H) novel 27 【 C1】 28 【 C2】 29 【 C3】 30 【 C4】 31 【 C5】 32 【 C6】 33 【 C7】

22、 34 【 C8】 35 【 C9】 36 【 C10】 Section B 36 Elite Math Competitions Struggle to Diversify Their Talent Pool A 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 mor

23、e than two decades the trend is likely to continue. B But will such contests, which are overwhelmingly dominated 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 th

24、e path toward international math recognition. But efforts are in place to expose more black, Hispanic, and low-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 type

25、s of people are doing something, its difficult for other people to break into it,“ said Po-Shen Loh, the head 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 i

26、n other students, he said. D Most of the training for advanced-math competitions happens outside the confines 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 larg

27、est feeders for high school math competitions including those that eventually lead to the IMO is a middle school program called MathCounts. 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.

28、The most recent one took place last week in Washington, D. C. Students join a team through their schools, which 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.

29、 F Nearly all members of last years winning U. S. IMO team took part in MathCounts as middle school students, 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 th

30、eir lives,“ said Loh. “They often get hooked then.“ G Another influential feeder for advanced-math students is 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

31、 they can pay a few hundred dollars to take courses with trained teachers. According to Richard Rusczyk, the company 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 MathCounts coaches say

32、the children are on the website constantly. H There are also dozens of summer camps many attached to universities that aim to prepare elite math students. Some are pricey a three-week intensive program can cost $4,500 or more but most offer scholarships. The Math Olympiad Summer Training Program is

33、a three-week math camp held by the Mathematical Association of America that leads straight to the international championship 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

34、may also have access to another lever for involvement in accelerated math: math circles. In these groups, which came 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 A

35、ngeles Math Circle, held at the University of California, Los Angeles, began in 2007 with 20 students and now has 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 stud

36、ents from more underserved populations, but they just cant get them in the door. Part of it is communication; part 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 Associat

37、ion of America, not a single African-American or Hispanic student and only a handful of girls has ever made it to 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 bas

38、ketball team thats our competition for resources, student time, attention, school dollars, parent efforts, school 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 MathCounts and those

39、 who do may not have support or feel trained to lead them. L But there are initiatives in place to try to get more 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

40、 students, mostly black and Hispanic, working toward math and science careers. The summer after 7th grade, students 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, hi

41、gh-performing high schools, and eventually college. About 250 students so far have gone through the program, which 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 theyre primar

42、ily centered around Lets get these kids grades up, and not around Lets get these kids access to the same kinds of 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 direct

43、ly through their schools. “We want to reach parents who are not plugged into the system,“ said Zaharopol. N In the past few years, MathCounts 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 sig

44、n up for the National Math Club receive a kit full of activities and resources, but theres no special teacher training 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

45、 application. After the high-pressure Countdown round at this years national MathCounts competition, in which the 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 l

46、ooked quite different from those in the competition roundof the 16 video finalists, 13 were girls and eight were 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 attr

47、act a new pool of students who may not see themselves as “math people“. 37 Middle school is a crucial period when students may become keenly interested in advanced mathematics. 38 Elite high school math competitions are attracting more interest throughout the United States. 39 Math circles provide s

48、tudents with access to advanced-math training by university professors. 40 Students may take advantage of online resources to learn to solve math problems. 41 The summer program run by a nonprofit organization has helped many underserved students learn advanced math. 42 Winners of local contests wil

49、l participate in the national math competition for free. 43 Many schools dont place academic competitions at the top of their priority list. 44 Contestants of elite high school math competitions are mostly Asian and white students from well-off families. 45 Some math training programs primarily focus on raising students math scores. 46 Some intensive summer programs are very expensive but most of them provide scholarships. Section C 46 We live today indebted