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1、精选优质文档-倾情为你奉上2017年6月大学英语六级考试真题及答案解析（第3套）Part I Writing (30 minutes)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.【参考范文】Whether to Attend Co
2、llege at Home or Abroad?Currently, with studying abroad gains mounting popularity among people, there is a heated debate about whether to attend college at home or abroad. Opinions on this topic vary from person to person. Some see more benefits in studying at home while others claim that studying a
3、broad is a more ideal choice as its more challenging.Personally, I am a strong favorer of the latter view. Listed below are the reasons for my advice. First of all, attending college abroad provides an opportunity to broaden ones experience and mind. You can acquire cross-cultural experiences and ga
4、in new perspectives on your chosen field of study. In addition, studying abroad helps you to polish your social skills; you can make friends with different people with different background. Thirdly, overseas studying is conducive to the formation of an independent, autonomous and tenacious personali
5、ty, which will ultimately benefit the achievement of our life goals.Just as an old saying goes: “It is better to travel thousand miles than to read ten thousand books.” Then studying abroad can not only enable us to reap in our books, but also in our trips. And this is why attending college abroad i
6、s a preferable selection for me.Part II Listening Comprehension说明：2017年6月大学英语全国共考了两套听力。本套（即第三套）的听力材料与第一套完全一样，只是选项的顺序不同而已，故本套不再重复给出。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 f
7、rom 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
8、use any of the words in the bank more than once.Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed. This phenomenon is often _26_ to as the “first-night-effect”. Researchers from Brown University found that a network in the left hemisphere of t
9、he 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 noises were played into their left ear.It was _28_ observed that the left side of the brain was mo
10、re active during deep sleep. When the 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 sleep. The researchers explained that the study demonstrated when we are in a _29_ environment the br
11、ain partly remains alert so that humans can defend themselves against any _30_ danger.The researchers believe this is the first time that the “first-night-effect” of different brain states has been _31_ in humans. It isnt, however, the first time it has ever been seen. Some animal _32_ also display
12、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 that dolphins always _34_ control their breathing. Without keeping the brain active while sleeping, they would probably drown. But, as the human
13、study suggest, another reason for dolphins keeping their eyes open during sleep is that they can look out for _35_ while asleep. It also keeps their physiological processes working.A) classified B) consciously C) dramatically D) exotic E) identifiedF) inherent G) marine H) novel I) potential J) pred
14、atorsK) referred L) species M) specifically N) varieties O) volunteers26.【解析】K。空格前是系动词is和副词often，空格后是不定式to，所以此空应该填入一个形容词或者动词的-ed形式。选项referred符合句意。be referred to as为固定搭配，意为“被称为”。故选K。27.【解析】O。空格前是名词词组the right ears和介词of ，空格后是系动词was，所以此空应该填入一个表示人的名词，表示所属关系。选项volunteers符合句意。故选O。28.【解析】M。空格前是系动词was，空格后是动
15、词的-ed形式observed，所以此空应该填入一个副词，修饰observed。选项specifically符合。故选M。29.【解析】H。空格前是不定冠词a；空格后是名词environment，所以此空应该填入一个形容词。选项novel符合句意。故选H。30.【解析】I。空格前是代词any ，空格后是名词danger，所以此空应该填入一个形容词。选项potential符合句意。故选I。31.【解析】E。空格前是现在完成时的标志词has been ，空格后是介词词组in humans，所以此空应该填入一个动词的-ed形式。选项identified符合句意。故选E。32.【解析】L。空格前是名词
16、animal，空格后是副词also和动词display,谓语和宾语完整，所以此空应该填入一个名词，与some animal构成名词词组，作主语。选项species符合句意。故选L。33.【解析】G。空格前是代词other，空格后是名词animals，所以此空应该填入一个形容词。选项marine符合句意。故选G。34.【解析】B。空格前是宾语从句的主语dolphins和副词always，空格后是谓语动词control，所以此空应该填入一个副词，修饰control。选项consciously符合句意。故选B。35.【解析】J。空格前是谓语动词look out for，空格后是时间状语从句while
17、 asleep，所以此空应该填入一个名词，作表语从句的谓语。选项predators符合句意。故选J。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
18、 a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.Elite Math Competitions Struggle to Diversify Their Talent PoolA Interest in elite high school math competitions has grown in recent years, and in light of
19、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 dominated by Asian and white students from middle-class and affluent families, become any more dive
20、rse? 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 low-income students to advanced math, in the hope that the demographic pool of high-level conte
21、nders 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 head coach of last years winning U.S. Math Olympiad team. Participation grows through friends and
22、 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 of the normal school day. Students attend after-school clubs, summer camps, online forums and
23、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 school program called Math Counts. About 100,000 students around the country participate in the progr
24、ams 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 provide a volunteer coach and pay a nominal fee to send students to regional and state competit
25、ions. 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, as did Loh, the coach. “Middle school is an important age because students have enough math capab
26、ility 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 an online school called Art of Problem Solving, which began about 13 years ago and now has 15,000
27、 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 company founder, the six U.S. team members who competed at the IMO last year collectively took more
28、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 universitiesthat aim to prepare elite math students. Some are pricey-a three-week intensive program can cost
29、$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 championship and is free for those who make it. Only about 50 students are invited based on their pe
30、rformance 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 came out of an Eastern European tradition of developing young talent, professors teach promising K-12
31、 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 more than 250. “These math circles cost nothing, or theyre very cheap for students to get involved
32、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; part of it is transportation.”J Its no secret in the advanced-math community that diversity is a proble
33、m. 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 the Math Olympiad team in its 50 years of existence. Many schools simply dont prioritize academic com
34、petitions. “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 enthusiasm.”K Teachers in low-income urban and rural areas with no history of participating in math c
35、ompetitions 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 underrepresented students involved in accelerated math. A New York City-based nonprofit called Bridge
36、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 spend three weeks on a college campus studying advanced math for seven hours a day. Over the next five
37、 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 receives funding from the Jack Kent Cooke Foundation.M “If you look at a lot of low-income communities
38、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 opportunities as more-affluent kids,” said Daniel Zaharopol, the founder and executive director of the p
39、rogram. “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 past few years, Math Counts added two new middle school programs to try to diversify its participant poo
40、l-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 training and no competition attached.O The Math Video Challenge is a competition, but a collaborative one. T
41、eams 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 the top 12 students went head to head solving complex problems in rapid fire, the finalists for the Math Vid
42、eo 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 were African-American students. The video challenge does not put individual students on the hot seat-so its l
43、ess 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”.36. Middle school is a crucial period when students may become keenly interested in advanced mathematics.36.【解析】 F。根据题干中的关键词middle school, crucial
44、 period, keenly interested in 可定位至原文的F)段。37. Elite high school math competitions are attracting more interest throughout the United States.37.【解析】A根据题干中的关鍵词elite high school math competitions, more interest 可定位至A)段。38. Math circles provide students with access to advanced-math training by university
45、 professors.38.【解析】I。根据题干中的关键词math circles, professors可定位至I)段。39. Students may take advantage of online resources to learn to solve math problems.39.【解析】G。根据题干中的关键词online resources 和 solve math problems 可定位至 G)段前两句。40. The summer program run by a nonprofit organization has helped many underserved st
46、udents learn advanced math.40.【解析】L。根据题干中的关键词nonprofit organization, underserved students 可定位至L)段。41. Winners of local contests will participate in the national math competition for free.41.【解析】E。根据题干中的关键词national math competition, free 可定位至 E)段。42. Many schools dont place academic competitions at t
47、he top of their priority list.42.【解析】J。根据题干中的关键词academic competitions, priority 可定位至 J)段。43. Contestants of elite high school math competitions are mostly Asian and white students from well-off families.43.【解析】B。根据题干中的关键词Asian and white students from well-off families可定位至B段。44. Some math training pr
48、ograms primarily focus on raising students math scores.44.【解析】M。根据题干中的关键词 focus on raising.math scores 可定位至 M)段。45. Some intensive summer programs are very expensive but most of them provide scholarships.45.【解析】H。根据题干中的关键词expensive, scholarships可定位至H)段。Section CDirections: There are 2 passages in th
49、is section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 46 to 50 are based on the following passage.