1、大学英语六级（2013 年 12月考试改革适用）模拟试卷 247及答案解析(总分：118.00，做题时间：90 分钟)一、Writing(总题数：2，分数：4.00)1.Part I Writing（分数：2.00）_2.Directions: For this part, you are allowed 30 minutes to write an essay based on the following drawing. In your essay, you should first describe the drawing and interpret its meanings, and
2、then give your comment on it. You should write at least 150 words but no more than 200 words. Write your essay on Answer Sheet 1. （分数：2.00）_二、Listening Comprehens(总题数：11，分数：50.00)3.Part II Listening Comprehension_4.Section A_A.Organisms far below the Earths surface.B.New drilling methods.C.A hidden
3、underground world.D.Rare and infectious bacteria.A.Modem experiments.B.Advanced technology.C.Precise statistics.D.Keen observation.A.3,000m.B.3,000km.C.6,000m.D.6,000km.A.They would be killed by the human immune system.B.They would die once brought to the surface.C.Many precautions and remedies are
4、available.D.Drilling operations are always closely monitored.A.Writing papers for his classes.B.Preparing for the coming exam in the library.C.Doing extra work in the chemistry lab.D.Working overtime at a library.A.Spend more time in the library.B.Write just one paper for all his classes.C.Drop one
5、of his courses.D.Write his papers on closely related topics.A.She once wrote about it.B.She thinks the man should write about it.C.She has been studying it recently.D.She particularly likes Romantic poetry.A.She knows he is very busy.B.Hes already helped her enough.C.He is incompetent to help her.D.
6、She doesnt need any help.5.Section B_A.Bank savings.B.Spending habits.C.Monthly bills.D.Family debts.A.$500,000.B.$330,000.C.$1,000,000.D.$190,000.A.Quit his eating-out habit.B.Use only paper bills and save coins.C.Use the discount tickets.D.Invest into a mutual fund.A.Last week.B.Three weeks ago.C.
7、Two months ago.D.Three years ago.A.By coach.B.By bus.C.By car.D.By train.A.Get information.B.Watch a film.C.Find a bank.D.Buy some shoes.A.Go sailing.B.See the lake by bus.C.Go swimming.D.Feed the ducks.6.Section C_A.To discuss the different categories of films.B.To discuss the styles of an early fi
8、lmmaker.C.To discuss the emergence of hybrid films.D.To discuss the standards of early films.A.They do not fit into the norms of the 1920s and 1930s.B.They are considered a mixture styles of science and fiction.C.They are fictional and difficult to understand.D.They are all filmed about underwater a
9、nimals.A.They could dance to the music like human beings.B.They had both human and animal characteristics.C.Their sounds and images in films were twisted.D.They had all the special features of human beings.A.It is about the jellyfish.B.It is about the seahorse.C.It is about unfamiliar sea plants.D.I
10、t is about unknown sea animals.A.It can be found in both plants and animals.B.It can be found only in human beings.C.It cannot be found in one-cell creatures.D.It cannot be found in plants growing underwater.A.They stay awake all day long in summer.B.They work 24 hours every day in summer.C.They spe
11、nd 12 hours sleeping every day in winter.D.They spend much time with families in winter.A.Sleeping from 8:00 p.m. until sunrise.B.Sleeping from 8:00 p.m. to 2:00 a.m.C.Sleeping twice with meditation at the end.D.Sleeping twice with in-between meditation.A.Drinking addiction.B.Gambling addiction.C.In
12、ternet addiction.D.Drug addiction.A.Moving fingers during dreams.B.Feeling better on the Internet.C.Checking emails online.D.Preferring social activities.A.IAD can be cured with a new drug.B.IAD is helpful to get information online.C.Getting information online takes much time.D.Internet is an effect
13、ive way for communication.三、Reading Comprehensio(总题数：8，分数：60.00)7.Part III Reading Comprehension_8.Section A_Crying is hardly an activity encouraged by society. Tears, be they of sorrow, anger, or joy, typically make Americans feel uncomfortable and 1. The shedder of tears is likely to apologize, ev
14、en when a devastating (毁灭性的) tragedy was the provocation. The observer of tears is likely to do everything possible to put an end to the 2outpouring. But judging from recent studies of crying behavior, links between illness and crying and the chemical composition of tears, both those responses to te
15、ars are often 3and may even be counterproductive (使达不到预期目标的).Humans are the only animals 4known to shed emotional tears. Since evolution has given 5to few, if any, purposeless physiological responses, it is logical to assume that crying has one or more functions that 6survival. Although some observe
16、rs have suggested that crying is a way to elicit assistance from others (as a crying baby might from its mother), the shedding of tears is hardly necessary to get help. Vocal cries would have been quite enough, more likely than tears to gain 7. So, it appears, there must be something special about t
17、ears themselves. Indeed, the new studies suggest that emotional tears may play a direct role in alleviating stress. University of Minnesota researchers who are studying the chemical composition of tears have recently 8two important chemicals from emotional tears. Both chemicals are found only in tea
18、rs that are shed in response to emotion. Tears shed because of exposure to cut onion would contain no such 9. Researchers at several other institutions are investigating the usefulness of tears as a means of 10human ills and monitoring drugs.A) attention I) definitelyB) overwhelming J) enhanceC) ina
19、ppropriate K) aspirationD) embarrassed L) emotionalE) diagnosing M) repelledF) indispensable N) substanceG) rise O) increasingly H) isolated（分数：20.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_10.Section B_Theres Gold in Them there LandfillsA In the movie WALL E, humankind
20、 has left Earth in a bit of a mess. The planet is choked with garbage and all the people have shipped out, leaving robot WALLE to clean the place up and make it habitable again. Things may not be quite that bad yet, but theres no doubt that we produce a huge amount of waste. Even with increased recy
21、cling, landfill sites are filling up by the day andin the absence of a brave robotthe waste experts of planet Earth are working on the next best thing: landfill mining.B The idea is simple. Instead of disappearing under mountains of our own waste, while paying through the nose for diminishing commod
22、ities, why not dig up and recycle what we have already thrown away?C Next week, industry experts will gather in London for the first global landfill mining conference. Bringing together environmental scientists, economists and landfill operators, the one-day meeting promises to show delegates how to
23、 turn waste into “garbage gold“.D Landfill mining has been tried before. The first scheme began in 1953 at Hiriya garbage dump outside Tel Aviv, Israel, and aimed to reclaim fine-particle waste rich in minerals to improve soil quality at local fruit farms. The landfill closed in 1998, but the recycl
24、ing plant that remains on the site still produces soil improver from green waste. Then during the 1960s and 1970s, a handful of sites in the US began separating waste to recycle the steel and to compost food scraps. In the late 1980s, a pilot programme was set up to extract recyclables from a small,
25、 community landfill in the town of Edinburg, New York, and burn the solid leavings to generate energy. This pilot proved uneconomical but during the oil price rising of the 1990s interest in the economic value of waste soared. Investors claimed to snap up scrap metal companies, only for the price of
26、 commodities to drop through the floor in the mid-1990s.E Yet now that commodities prices are rising once more, environmental issues are high on everyones list of priorities and land prices are increasing, every square kilometre is worth too much to use for landfill. Raiding the dump seems like a go
27、od idea again. This time the prospects are more promising. Thanks to a decade of innovation by the recycling industry, the technology to process landfill waste is more readily available.F So whats in a landfill worth recycling? For a start, the average landfill is filled with valuableand sometimes e
28、ven preciousmetals. Aluminium, from drinks cans, is just one example. According to Patrick Atkins, environmental consultant for private equity fund Pegasus Capital Advisors, and until recently director of energy innovation at US aluminium producer Alcoa, Americans throw away 317 aluminium cans every
29、 second of every day. Around half of these, totalling 680,000 tonnes of aluminium each year, dodge the recycling basket and end up in landfill. Given that the cost of aluminium peaked at $2,700 per tonne in July this means America is burying up to $1.83 billion worth of metal per year. Atkins estima
30、tes that there is now more aluminium in US landfills than can be produced from ores globally in one year. And its not only aluminium that is hiding down there with the used diapers (尿布) and grocery bags. One tonne of scrap from discarded PCs contains more gold than can be produced from 16 tonnes of
31、ore, he says. And the world throws away 18 million tonnes of electronic waste each year.G Nowadays it is relatively easy to separate the metal you want from the junk you dont using recycling technologies. Eddy current (漩涡流) magnets, for example, can avert aluminium and other metals from a flowing st
32、ream of waste. Plastic, too, is becoming easier to pick out. Rather than the more expensive process of doing it by hand, some plastic sorting plants are now using some scanners, which sort different types based on the spectrum of light they absorb. And since rising prices are making oil seem like an
33、 expensive raw material to produce plastics, recycling existing plastic from landfill seems sensible.H Metals and plastics are only part of it, says William Hogland, an environmental engineer at the University of Kalmar in Sweden. All that smelly food and other organic waste rots down sooner or late
34、r. And as the TelAviv project discovered back in the 1950s, even this can be worth digging up.I “The earth fraction of landfill can be one of the most profitable as coverage material, compost (堆肥) and for lawn improvement,“ Hogland says. Theres also plenty of flammable material in landfills. One kil
35、ogram of the coarse earth fractioncontaining particles greater than 50 millimetres acrossyields between 6 and 10 megajoules (兆焦) of energy, Hogland says, and the average Swedish landfill has 40 million tonnes of the stuff. Burning that waste is a controversial idea because of toxins (霉素) that may be
36、 released in the process. But, Hogland says, thanks to new technology for cleaning flue gases, Sweden is building new incinerators (焚烧炉) to provide heat and light for local communities.J So if landfill sites are, sometimes literally, gold mines, why arent companies tearing into them already? For its
37、 part, Alcoa has invested heavily in stopping as many cans as it can from reaching a landfill, but has stopped short of digging them up again. “Its not something we are doing at this point,“ said Alcoa spokesman Kevin Lowery. “If we thought it was the most efficient thing, wed do it.“K Part of the r
38、eason for this is that while aluminium can be recycled at a fraction of the cost of producing it from ore, and using 94 per cent less energy, thats only the case once you have collected the cans. Getting them out of landfill is more expensive than buying aluminium directly from a recycling plant. Pl
39、us no two landfill sites are the same. Each has a different blend of useful materials, mixed with all kinds of less useful or dangerous materials. And when you consider that companies would likely want to mine more than one site, covered perhaps by different state or national regulations, it starts
40、to look like too much trouble.L Reid Lifset, an industrial ecologist at Yale University who has investigated the prospect of extracting copper from landfills, has come to a similar conclusion. “With current technology and prices, landfill mining is generally not economically feasible,“ he says. “The
41、 benefits such as revenue from sale of recovered metals, and reduction in regulatory costs, generally did not outweigh the costs.“ In other words, there may be a lot of copper buried in landfills, but if copper is your thing, a huge mine with gigantic equipment makes more sense than picking your way
42、 through several different landfill sites.M Advocates of landfill mining argue that with more imagination and a sober assessment of the true cost of burying rubbish, there is a reasonable economic case for landfill mining. He and his colleagues have calculated that reclaiming sites in the Baltic reg
43、ion alone could generate billions of euros from various revenue streams. Rather than approaching landfill mining with one outcome in mind, Hogland says, you have to look at the overall advantages, including environmental services like protecting water quality.（分数：20.00）(1).Eddy current magnets are u
44、sed to separate metals from the waste.（分数：2.00）填空项 1:_(2).The pilot programme in the 1980s was found to be inefficient（分数：2.00）填空项 1:_(3).The controversy over waste burning is that it may release poisonous substances.（分数：2.00）填空项 1:_(4).The purpose of the garbage dump in Israel was to recover the mi
45、neral fine-particle.（分数：2.00）填空项 1:_(5).As the landfill sites are filling up, the waste experts are trying to put effort into landfill mining.（分数：2.00）填空项 1:_(6).It is estimated that the aluminum American throw into landfill every year totally is worth 1.83 billion.（分数：2.00）填空项 1:_(7).The benefits f
46、rom landfill mining may not outweigh the costs.（分数：2.00）填空项 1:_(8).Digging metals up from the dump is not the most efficient thing.（分数：2.00）填空项 1:_(9).The prospects of digging up the dump are now more promising because the waste recycling technology has been improved.（分数：2.00）填空项 1:_(10).Advocates of landfill mining believe th
