2021年6月大學(xué)英語六級考試真題

1、第 PAGE 9 頁2021年 6 月大學(xué)英語六級考試真題 (第 2 套）PartIWriting(30minutes)Directions: For this part, you are allowed 30 minutes to write an essay commenting on the importance of building trust between teachers and students. You can cite examples to illustrate your views. You should write at least 150 words but no

2、 more than 200 words.PartIIListeningComprehension(30minutes)Section ADirections: 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

3、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.Questions1 to 4 are based on the conversation you have just heard.1.A). She advocates animal protection.B). She sells a special kind of co

4、ffee.C). She is going to start a cafe chain.D). She is the owner of a special cafe.2.A). They bear a lot of similarities.B). They are a profitable business sector.C). They cater to different customers.D). They help take care of customers pets. 3.A). By giving them regular cleaning and injections.B).

5、 By selecting breeds that are tame and peaceful.C). By placing them at a safe distance from customers.D). By briefing customers on how to get along with them.4.A). They want to learn about rabbits.B). They like to bring in their children.C). They love the animals in her cafe.D). They give her cafe f

6、avorite reviews. Questions 5 to 8 are based on the conversation you have just heard.5.A). It contains too many additives.B). It lacks the essential vitamins.C). It can cause obesity.D). It is mostly garbage.6.A). Its fancy design.B). TV commercials.C). Its taste and texture.D). Peer influence.7.A).

7、Investing heavily in the production of sweet foods.B). Marketing their products with ordinary ingredients.C). Trying to trick children into buying their products.D). Offering children more variable to choose from.8.A). They hardly ate vegetables.B). They seldom had junk food.C). They favored chocola

8、te-coated sweets.D). They like the food advertised on TV.Section BDirections: In this section, you will hear two 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 be

9、st 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 9 to 11 are based on the passage you have just heard.9.A). Stretches of farmland.B). Typical Egyptian animal farms.C). Tombs of ancient rulers

10、.D). Ruins left by devastating floods. 10.A). It provides habitats for more primitive tribes.B). It is hardly associated with great civilizations.C). It has not yet been fully explored and exploited.D). It gathers water from many tropical rain forests.11.A). It carries about one fifth of the word fr

11、esh water.B). It has numerous human settlements along its banks.C). It is second only to the Mississippi River in width.D). It is as long as the Nile and the Yangtze combined.Questions 12 to 15 are based on the passage you have just heard.12.A). Living a life in the fast lane leads to success.B). We

12、 are always in a rush to do various things.C). The search for tranquility has become a trend.D). All of us actually yearn for a slow and calm life.13.A). She had trouble balancing family and work.B). She enjoyed the various social events.C). She was accustomed to tight schedules.D). She spent all he

13、r leisure time writing books.14.A). The possibility of ruining her family.B). Becoming aware of her declining health.C). The fatigue from living a fast-paced life.D). Reading a book about slowing down.15.A). She started to follow the cultural norms.B). She came to enjoy doing everyday tasks.C). She

14、learn to use more polite expressions.D). She stopped using to-do lists and calendars.Section CDirections: In this section, you will hear three recordings of lectures or talks followed by three or four questions. The recordings will be played only once. After you hear a question, you must choose the

15、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 16 to 18 are based on the recording you have just heard.16.A). They will root out native species altogether.B). They contribute to a regions

16、biodiversity.C). They pose a threat to the local ecosystem.D). They will crossbreed with native species.17.A). Their classifications are meaningful.B). Their interactions are hard to define.C). Their definitions are changeable.D). Their distinctions are artificial.18.A). Only a few of them cause pro

17、blems to native species.B). They may turn to benefit the local environmentC). Few of them can survive in their new habitats.D). Only 10 percent of them can be naturalized.Questions 19 to 21 are based on the recording you have just heard.19.A). Respect their traditional culture.B). Attend their busin

18、ess seminars.C). Research their specific demands.D). Adopt the right business strategies.20.A). Showing them your palm.B). Giving them gifts of great value.C). Drinking alcohol on certain days of a month.D). Clicking your fingers loudly in their presence.21.A). They are very easy to satisfy.B). They

19、 have a strong sense of worth.C). They trend to friendly and enthusiastic.D). They have a break from 2:00 to 5:30 p.m.Questions 22 to 25 are based on the recording you have just heard.22.A). He completely changed the companys culture.B). He collected paintings by world-famous artists.C). He took ove

20、r the sales department of Readers Digest.D). He had the companys boardroom extensively renovated.23.A). It should be sold at a reasonable price.B). Its articles should be short and inspiring.C). It should be published in the worlds leading languages.D). Its articles should entertain blue-and pink-co

21、llar workers.24.A). He knew how to make the magazine profitable.B). He served as a church minster for many years.C). He suffered many setbacks and misfortunes in his life.D). He treated the employees like members of his family.25.A). It carried many more advertisements.B). George Grune joined it as

22、an ad salesman.C). Several hundred of its employees got fired.D). Its subscriptions increased considerably.PartIIIReadingComprehension(40minutes)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 i

23、n 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 b

24、ank more than once.Questions 26 to 35 are based on the following passage.Did Sarah Josepha Hale write “Mary s Little Lamb,” the eternal nursery rhyme (兒歌) about a girl namedMary with a stubborn lamb? This is still dispute , but its clear that the woman26for writing it was one ofAmerica s most fascin

25、ating27 _. In honor of the poem s publication on May 24，1830， heres more about the28author s life.Hale wasnt just a writer, she was also a29social advocate, and she was particularly30_ with an idealNew England, which she associated with abundant Thanksgiving meals that she claimed had “a deep moral

26、influence.”she began a nationwide31to have a national holiday declared that would bring families together whilecelebrating the32festivals. In 1863, after 17 years of advocacy including letters to five presidents， Hale got it.President Abraham Lincoln, during the Civil War, issued a33 the holiday.set

27、ting aside the last Thursday in November forThe true authorship of “Marys Little Lamb” is disputed. According to New England Historical Society, Hale wrote only one part of the poem, but claimed authorship. Regardless of the author, it seems that the poem was34 by a real event. When young Mary Sawye

28、r was followed to school by a lamb in 1816, it caused someproblems. A bystander named John Roulstone wrote a poem about the event, then, at some point, Hale herself seemsto have helped write it. However, if a 1916 piece by her great-niece is to be trusted, Hale claimed for the her life that “Some ot

29、her people pretended that someone else wrote the poem”.35 ofA). campaignB). careerC). charactersD). featuresE). fierceF). inspiredG). latterH). obsessedI). proclamationJ). rectifiedK). reputedL). restM). supposedN). traditionalO). versatileSection BDirections: In this section, you are going to read

30、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 corre

31、sponding letter on Answer Sheet2.Grow Plants Without WaterA. Ever since humanity began to farm our own food, weve faced the unpredictable rain that is both friend and enemy. It comes and goes without much warning, and a field of lush (茂盛的) leafy greens one year can dry up and blow away the next. Foo

32、d security and fortunes depend on sufficientrain, and nowhere more so than in Africa, where 96% of farmland depends on rain instead of the irrigation common in more developed places. It has consequences : South Africas ongoing droughtthe worst in three decades will cost at least a quarter of its com

33、 crop this year.B. Biologist Jill Farrant of the University of Cape Town in South Africa says that nature has plenty of answers for people who want to grow crops in places with unpredictable rainfall. She is hard at work finding a way to take traits from rare wild plants that adapt to extreme dry we

34、ather and use them in food crops. As the earths climate changes and rainfall becomes even less predictable in some places, those answers will grow even more valuable.The type of farming Im aiming for is literally so that people can survive as its going to get more and more dry,Farrant says.C. Extrem

35、e conditions produce extremely tough plants. In the rusty red deserts of South Africa, steep- sided rocky hills called inselbergs rear up from the plains like the bones of the earth. The hills are remnants of an earlier geological era, scraped bare of most soil and exposed to the elements. Yet on th

36、ese and similar formations in deserts around the world, a few fierce plants have adapted to endure under ever-changing conditions.D. Farrant calls them resurrection plants (復(fù)蘇植物) . During months without water under a harsh sun.They wither, shrink and contract until they look like a pile of dead gray

37、 leaves. But rainfall can revive them in a matter of hours. Her time-lapse (間歇性拍攝的) videos of the revivals look like someone playing a tape of the plants death in reverse.E. The big difference between drought-tolerant plants and these tough plants: metabolism. Many different kinds of plants have dev

38、eloped tactics to weather dry spells. Some plants store reserves of water to see them through a drought ; others send roots deep down to subsurface water supplies. But once these plants use up their stored reserve or tap out the underground supply, they cease growing and start to die. They may be ab

39、le to handle a drought of some length, and many people use the term drought tolerant to describe such plants, but they never actually stop needing to consume water, so Farrant prefers to call them drought resistant.F. Resurrection plants, defined as those capable of recovering from holding less than

40、 0.1 grams of water per gram of dry mass, are different. They lack water-storing structures, and their existence on rock faces prevents them from tapping groundwater, so they have instead developed the ability to change their metabolism .When they detect an extended dry period, they divert their met

41、abolisms, producing sugars and certain stress-associated proteins and other materials in their tissues. As the plant dries, these resources take on first the properties of honey, then rubber, and finally enter a glass-like state that is the most stable state that the plant can maintain, Farrant says

42、. That slows the plants metabolism and protects its dried-out tissues. The plants also change shape, shrinking to minimize the surface area through which their remaining water might evaporate. They can recover from months and years without water, depending on the species.G. What else can do this dry

43、-out-and-revive trick? Seeds-almost all of them. At the start of her career, Farrant studied . recalcitrant seeds (執(zhí)拗性種子) , such as avocados, coffee and lychee. While tasty, such seeds are delicate-they cannot bud and grow if they dry out (as you may know if youve evertried to grow a tree from an av

44、ocado pit). In the seed world, that makes them rare, because most seeds from flowering plants are quite robust. Most seeds can wait out the dry, unwelcoming seasons until conditions are right and they sprout (發(fā)芽 ). Yet once they start growing, such plants seem not toretain the ability to hit the pau

45、se button on metabolism in their stems or leaves.H. After completing her Ph. D. on seeds, Farrant began investigating whether it might be possible to isolate the properties that make most seeds so resilient (迅速恢復(fù)活力的) and transfer them to other plant tissues. What Farrant and others have found over t

46、he past two decades is that there are manygenes involved in resurrection plants response to dryness. Many of them are the same that regulate how seeds become dryness-tolerant while still attached to their parent plants. Now they are trying to figure out what molecular signaling processes activate th

47、ose seed-building genes in resurrection plantsand how to reproduce them in crops.Most genes are regulated by a master set of genes,Farrant says.Were looking at gene promoters and what would be their master switch.I.Once Farrant and her colleagues feel they have a better sense of which switches to th

48、row, they will have to find the best way to do so in useful crops.Im trying three methods of breeding,Farrant says : conventional, genetic modification arid gene editing. She says she is aware that plenty of people do not want to eat genetically modified crops, but she is pushing ahead with every av

49、ailable tool until one works. Farmers and consumers alike can choose whether or not to use whichever version prevails :Im giving people an option. J. Farrant and others in the resurrection business got together last year to discuss the best species of resurrection plant to use as a lab model. Just l

50、ike medical researchers use rats to test ideas for human medical treatments, botanists use plants that are relatively easy to grow in a lab or greenhouse setting to test their ideas for related species. The Queensland rock violet is one of the best studied resurrection plants so far, with a draft ge

51、nome (基因圖譜) published last year by a Chinese team. Also last year, Farrant and colleagues published a detailed molecular study of another candidate, Xerophyta viscosa, a tough-as-nail south African plant with lily-like flowers, and she says that agenome is on the way. one or both of these models wil

52、l help researchers test their ideas so far mostly done in the lab on test plots.K. Understanding the basic science first is key. There are good reasons why crop plants do not use dryness defenses already. For instance, theres a high energy cost in switching from a regular metabolism to an almost-no-

53、water metabolism. It will also be necessary to understand what sort of yield farmers might expect and to establish the plants safety.The yield is never going to be high,Farrant says, so these plants will be targeted not at Iowa farmers trying to squeeze more cashout of high-yield fields, but subsist

54、ence farmers who need help to survive a drought like the present one in South Africa.My vision is for the subsistence farmer, Farrant says.Im targeting crops that are of African value. .There are a couple of plants tough and adaptable enough to survive on bare rocky hills and in deserts.Farrant is t

55、rying to isolate genes in resurrection plants and reproduce them in crops.Farmers in South Africa are more at the mercy of nature, especially inconsistent rainfall.Resurrection crops are most likely to be the choice of subsistence farmers.Even though many plants have developed various tactics to cop

56、e with dry weather, they cannot survive a prolonged drought.Despite consumer resistance, researchers are pushing ahead with genetic modification of crops.Most seeds can pull through dry spells and begin growing when conditions are ripe, but once this process starts, it cannot be held back.Farrant is

57、 working hard to cultivate food crops that call survive extreme dryness by studying the traits of rare wild plants.By adjusting their metabolism, resurrection plants can recover from an extended period of drought.Resurrection plants can come back to life in a short time after a rainfall.Section CDir

58、ections： 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 th

59、e centrepassage oneQuestions 46 to 50 are based on the following passage.Human memory is notoriously unreliable. Even people with the sharpest facial-recognition skills can only remember so much.Its tough to quantify how good a person is at remembering. No one really knows how many different faces s

60、omeone can recall, for example, but various estimates tend to hover in the thousands-based on the number of acquaintances a person might have.Machines arent limited this way, Give the right computer a massive database of faces, and it can process what it sees-then recognize a face its told to find-w