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1、 2018 年 6 月大学英语六级考试真题 (第 2 套）Part IWriting(30minutes)Directions: For this part, you are allowed 30 minutes to write an essay commenting on the importance ofbuilding trust between teachers and students. You can cite examples to illustrate your views. Youshould write at least 150 words but no more tha
2、n 200words.Part IIListeningComprehension(30minutes)Section ADirections: In this section, you will hear two long conversations At the end of each conversation, you willhear four questions. Both the conversation and the questions will be spoken only once. After youhear a question, you must choose the
3、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.123. A). She advocates animal protection.C). She is going to start a cafe chain. A).
4、 They bear a lot of similarities.B). She sells a special kind of coffee.D). She is the owner of a special cafe.B). They are a profitable business sector.D). They help take care of customers pets.C). They cater to different customers. A). By giving them regular cleaning and injections.B). By selectin
5、g 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.D). They give her cafe favorite reviews.C). They love the animals in her
6、cafe.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.D). It is mostly garbage.C). It can cause obesity.6. A). Its fancy design.B). TV commercials.D). Peer influence.C). Its taste and texture.7. A). Investing
7、 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. A). They hardly ate vegetables.8B). They seldom had junk food.C). They favored chocolate-coated
8、 sweets.D). They like the food advertised on TV.第 1 页 Section BDirections: In this section, you will hear two passages. At the end of each passage, you will hear three or fourquestions. Both the passage and the questions will be spoken only once. After you hear a question, you mustchoose the best an
9、swer from the four choices marked A), B), C)and D). Then mark the corresponding letter onAnswer Sheet 1 with a single line through the centre.Questions 9 to 11 are based on the passage you have just heard.91. A). Stretches of farmland.B). Typical Egyptian animal farms.D). Ruins left by devastating f
10、loods.C). Tombs of ancient rulers.0. 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.1. A). It carries about one fifth of the word fresh w
11、ater.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.11Questions 12 to 15 are based on the passage you have just heard.2. A). Living a life in the fast lane leads to success.B). We ar
12、e 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 .1113. A). She had trouble balancing family and work.C). She was accustomed to tight schedules.4. A). The possibility of ruining her family.C). The fatigue
13、from living a fast-paced life.5. A). She started to follow the cultural norms.C). She learn to use more polite expressions.B). She enjoyed the various social events.D). She spent all her leisure time writing books.B). Becoming aware of her declining health.D). Reading a book about slowing down.B). S
14、he came to enjoy doing everydaytasks.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 fourquestions. The recordings will be played only once. After you hear a question, you must choose the b
15、est answerfrom the four choices marked A), B), C)and D).Then mark the corresponding letter on Answer Sheet 1 witha single line through the centre.Questions 16 to 18 are based on the recording you have just heard.1116. A). They will root out native species altogether.B). They contribute to a regions
16、biodiversity.D). They will crossbreed with native species.B). Their interactions are hard to define.D). Their distinctions are artificial.C). They pose a threat to the local ecosystem.7. A). Their classifications are meaningful.C). Their definitions are changeable.8. A). Only a few of them cause pro
17、blems to nativeB). They may turn to benefit the local environmentC). Few of them can survive in their new habitats.第 2 页 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.C). Research their speci
18、fic demands.0. A). Showing them your palm.B). Attend their business seminars.D). Adopt the right business strategies.2B). Giving them gifts of great value.C). Drinking alcohol on certain days of a month.D). Clicking your fingers loudly in their presence.1. A). They are very easy to satisfy.2B). 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 ov
20、er the sales department of Readers Digest.D). He had the companys boardroom extensively renovated.3. A). It should be sold at a reasonable price.222B). Its articles should be short and inspiring.C). It should be published in the worlds leading languages.D). Its articles should entertain blue-and pin
21、k-collar workers.4. 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.5. A). It carried many more advertisements.C). Several hundred of its
22、 employees got fired.B). George Grune joined it as an ad salesman.D). Its subscriptions increased considerably.Part IIIReading Comprehension(40minutes)Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for eachblank from a list of choices gi
23、ven in a word bank following the passage. Read the passage through carefullybefore making your choices. Each choice in the bank is identified by a letter. Please mark the correspondingletter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of thewords in the
24、 bank 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 (儿歌) about a girl namedMary with a stubborn lamb? This is still dispute , but its clear that the woman 26 for writing it was one ofAmerica s most fa
25、scinating 27 _. 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 a 29 social advocate, and she was particularly 30_ with an idealNew England, which she associated with abundant Thanksgiving meals that she claimed had “a dee
26、p moral influence.”she began a nationwide 31 to have a national holiday declared that would bring families together while第 3 页 celebrating the 32 festivals. In 1863, after 17 years of advocacy including letters to five presidents， Hale got it.President Abraham Lincoln, during the Civil War, issued a
27、 33 setting aside the last Thursday in November forthe holiday.The true authorship of “Marys Little Lamb” is disputed. According to New England Historical Society, Halewrote only one part of the poem, but claimed authorship. Regardless of the author, it seems that the poem was34by a real event. When
28、 young Mary Sawyer 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 theher li
29、fe that “Some other people pretended that someone else wrote the poem”.35 ofA). campaignC). charactersE). fierceB). careerD). featuresF). inspiredH). obsessedJ). rectifiedL). restG). latterI). proclamationK). reputedM). supposedO). versatileN). traditionalSection BDirections: In this section, you ar
30、e going to read a passage with ten statements attached to it. Each statementcontains information given in one of the paragraphs. Identify the paragraph from which the information isderived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer thequestions by mark
31、ing the corresponding letter on Answer Sheet2.Grow Plants Without WaterA. Ever since humanity began to farm our own food, weve faced the unpredictable rain that is bothfriend and enemy. It comes and goes without much warning, and a field of lush (茂盛的) leafygreens one year can dry up and blow away th
32、e next. Food security and fortunes depend on sufficientrain, and nowhere more so than in Africa, where 96% of farmland depends on rain instead of theirrigation common in more developed places. It has consequences : South Africas ongoing droughtthe worst in three decades will cost at least a quarter
33、ofits com crop this year.B. Biologist Jill Farrant of the University of Cape Town in South Africa says that nature has plenty ofanswers for people who want to grow crops in places with unpredictable rainfall. She is hard atwork finding a way to take traits from rare wild plants that adapt to extreme
34、 dry weather and usethem in food crops. As the earths climate changes and rainfall becomes even less predictable insome places, those answers will grow even more valuable.The type of farming Im aiming for isliterally so that people can survive as its going to get more and more dry,Farrant says.C. Ex
35、treme 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 areremnants of an earlier geological era, scraped bare of most soil and exposed to the elements. Yet ont
36、hese and similar formations in deserts around the world, a few fierce plants have adapted to endureunder ever-changing conditions.D. Farrant calls them resurrection plants (复苏植物) . 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 canrevive them in a matter of hours. Her time-lapse (间歇性拍摄的) videos of the revivals look likesomeone playing a tape of the plants death in reverse.第 4 页 E. The big difference between drought-tolerant plants and these tough plants: metabolism. Manydifferent kinds of plants have
38、developed tactics to weather dry spells. Some plants store reserves ofwater to see them through a drought ; others send roots deep down to subsurface water supplies. Butonce these plants use up their stored reserve or tap out the underground supply, they cease growingand start to die. They may be ab
39、le to handle a drought of some length, and many people use the termdrought tolerant to describe such plants, but they never actually stop needing to consume water, soFarrant prefers to call them drought resistant.F. Resurrection plants, defined as those capable of recovering from holding less than 0
40、.1 grams of waterper gram of dry mass, are different. They lack water-storing structures, and their existence on rockfaces prevents them from tapping groundwater, so they have instead developed the ability to changetheir metabolism .When they detect an extended dry period, they divert their metaboli
41、sms, producingsugars 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 statethat is the most stable state that the plant can maintain, Farrant says. That s
42、lows the plantsmetabolism and protects its dried-out tissues. The plants also change shape, shrinking to minimize thesurface area through which their remaining water might evaporate. They can recover from monthsand years without water, depending on the species.G. What else can do this dry-out-and-re
43、vive trick? Seeds-almost all of them. At the start of her career,Farrant studied . recalcitrant seeds (执拗性种子) , 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 avocado pit). I
44、n the seed world, that makes them rare, because most seedsfrom flowering plants are quite robust. Most seeds can wait out the dry, unwelcoming seasons untilconditions are right and they sprout (发芽 ). Yet once they start growing, such plants seem not toretain the ability to hit the pause button on me
45、tabolism in their stems or leaves.H. After completing her Ph. D. on seeds, Farrant began investigating whether it might be possible toisolate the properties that make most seeds so resilient (迅速恢复活力的) and transfer them to otherplant tissues. What Farrant and others have found over the past two decad
46、es is that there are manygenes involved in resurrection plants response to dryness. Many of them are the same that regulatehow seeds become dryness-tolerant while still attached to their parent plants. Now they are trying tofigure out what molecular signaling processes activate those seed-building g
47、enes in resurrection plantsand how to reproduce them in crops.Most genes are regulated by a master set of genes,Farrantsays.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 throw, they willhave 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 donot want to eat genetically modified crops, but she is push