1、大学英语六级（ 2013年 12月考试改革适用）模拟试卷 75及答案与解析 一、 Part I Writing 1 For this part, you are allowed 30 minutes to write an essay on cooperation by referring to the saying “ Two heads are better than one. “ You can give examples to illustrate your point. You should write at least 150 words but no more than 200
2、words. Write your essay on Answer Sheet 1. Section A （ A） Sue looks older in the picture than she really is. （ B） Sue should wear makeup when taking photos. （ C） Sue is the oldest among the people in the picture. （ D） Sue should remove this picture from her photo album. （ A） The woman doesnt believe
3、 the weather forecast. （ B） The woman feels its at least 5 degrees below zero. （ C） The man doesnt like the slippery roads in the cold weather. （ D） The man hates everything about the cold weather. （ A） The woman doesnt like any fragrant cleaning milk. （ B） The cleaning milk is designed for sensitiv
4、e skin. （ C） The woman prefers any fragrance but this kind. （ D） The man thinks the price is reasonable. （ A） The woman doesnt like classical music. （ B） The woman is a musician playing in an orchestra. （ C） The man thinks classical music has no beat at all. （ D） The man prefers jazz to classical mu
5、sic. （ A） Peter is not available. （ B） Peter is not welcome. （ C） Peter has been invited. （ D） Peter has been ill. （ A） He lent the calculator to someone else. （ B） He needed to use the calculator for several more days. （ C） He forgot to bring the calculator to school. （ D） He dropped the calculator
6、 and broke it. （ A） Complaining. （ B） Apologizing. （ C） Inquiring. （ D） Reporting. （ A） Lucy had a row with Jim. （ B） Lucy broke up with Jim. （ C） Lucy had a crush on Jim. （ D） Lucy distanced herself from Jim. （ A） Go to summer camp. （ B） Hold a big party. （ C） Stay at home. （ D） Try house-sitting.
7、（ A） They hired someone to stay in their home. （ B） They left their pets with their relatives. （ C） They rented their house to a student. （ D） They asked their secretary to watch their home. （ A） Mow the lawn. （ B） Water the house plants. （ C） Take care of his pets. （ D） Take care of his children. （
8、 A） They attend a house-sitters party. （ B） They check a house-sitters references. （ C） They interview a house-sitters friends. （ D） They look at a house-sitters academic record. （ A） What the mans plans are for tonight. （ B） Why the man does not want to play tennis. （ C） Why they do not have time t
9、o play tennis after class today. （ D） What time they can meet in the library. （ A） Yesterday. （ B） A couple of days ago. （ C） A month ago. （ D） One week ago. （ A） Let him win a tennis game. （ B） Help him finish his history project. （ C） Give him some medicine for his stomach. （ D） Lend him her histo
10、ry book. Section B （ A） Because machines reduced the price and made cigarettes popular. （ B） Because cigarette industry only began to develop in the 1870s. （ C） Because factories produced more cigarettes than before. （ D） Because people began to accept smoking as a habit. （ A） High school students w
11、ho give up college. （ B） Uneducated men with lower income. （ C） People aged from 24 to 44. （ D） Teenagers from single parent families. （ A） Those from upper-income families. （ B） Those from well-educated families. （ C） Those from farm areas. （ D） Those from smoking families. （ A） Women have a body s
12、tructure that is different from men. （ B） Women have more vitamins, minerals and proteins than men. （ C） There are more fat cells containing less water in women than men. （ D） Men consume more water in life than women. （ A） Helping people keep clean. （ B） Helping people build up muscle. （ C） Helping
13、 people build up cells. （ D） Helping people remove the waste. （ A） By taking a shower. （ B） By drinking cold water. （ C） By cooling the skin. （ D） By sweating. （ A） Because sugar makes the liquid get into the blood slowly. （ B） Because sugar in sweet drinks brings a feeling of thirst. （ C） Because s
14、weet drinks arent as cold as common cold liquid. （ D） Because sweet drinks contain more other substances. （ A） Sex prejudice on women. （ B） Womens social role. （ C） Womens social position. （ D） Womens position in job market. （ A） Work that is irrelevant to womens family role. （ B） Work that can show
15、 prejudice against women. （ C） Work that is within the protection of family. （ D） Work that needs womens special capacities. （ A） The ways sex differences influence social roles have changed. （ B） Sex differences are formed by nature. （ C） Sex differences cant decide social roles. （ D） Differences i
16、n social roles reflect the sex differences. Section C 26 Amazingly for the British, who love queues, there is no formal line-upthe bar staff are skilled at knowing whose turn it is. You are permitted to try to【 B1】 _, but there are rules about how to do this. Do not call out, tap coins on the counte
17、r, snap your finger or wave like a【 B2】 _swimmer. And whatever you do, do not ring the bell hanging behind the counterthis is used by the【 B3】 _to signal closing time. The key thing is to catch the bar workers eyes. Do adopt an【 B4】 _, hopeful, even slightly anxious facial expression. If you look to
18、o contented, the bar staff may【 B5】 _you are already being served. Always say “please“ and try to remember some of the British bar staffs pet hates. They do not like people who wait until the end of the order before asking for such drinks as Guinness stout(健力士啤酒 )which take【 B6】 _longer to pour than
19、 other drinks. And they do not like people to keep others waiting when they【 B7】 _. One Dutch tourist who visited 800 of Britains 61,000 pubs and interviewed 50 publicans(酒馆老板 )and bar workers and more than 1,000 customers【 B8】 _how the British ever manage to buy themselves a drink. But they do, and
20、 if you follow these tips you should be able to do so, too. 【 B9】 _tips, you should never offer the bar staff a cash gratuity(小费 ). The correct behavior is to offer them a drink. A tip in cash would be a【 B10】 _of their service role, whereas the offer of a drink is a friendly gesture. 27 【 B1】 28 【
21、B2】 29 【 B3】 30 【 B4】 31 【 B5】 32 【 B6】 33 【 B7】 34 【 B8】 35 【 B9】 36 【 B10】 Section A 36 Waffles? French toast? Bacon? Big breakfasts may be a thing of the past. According to the Associated Press, more Americans are consuming breakfast in stages thanks to on-the-go lifestyles and the belief that mu
22、ltiple, smaller meals are【 C1】 _than three large ones. Serial eating is only expected to increase in the coming years. The NPD Group, a market research company,【 C2】 _that the number of times people will snack in the mornings will increase 23% between 2008 and 2018,【 C3】 _with 20% and 15% increases
23、in the afternoon and evening snacking,【 C4】 _. Unlike their evening alter-egos, morning snackers tend to be more health【 C5】 _, looking for low-calorie foods with more fiber, antioxidants(抗氧化剂 )and whole grains. For instance, General Mills introduced its 140-calorie Fiber One bars in 2007, but recen
24、tly added three more flavors as well as 90-calorie versions. This may be new in the U. S., but second breakfast is【 C6】 _in countries such as Germany. In Bavaria, a traditional second breakfast【 C7】 _of white sausages, pretzels(脆饼干 ), sweet mustard and, of course, beer. But snackers, beware: though
25、spreading calories across several meals is generally accepted to be healthier, it can actually cause people to over-consume and gain weight, David Levitsky, a professor of nutrition and psychology at Cornell University, told the AP. Maybe the trend toward portable, quick-hit breakfasts will【 C8】 _mo
26、re people to eat in the morning. According to the Huffington Post, a 2011【 C9】 _by the NPD Group found that 10 percent of the U. S. population, or 31 million Americans,【 C10】 _the most important meal of the day. A)compared I)made B)connected J)necessary C)conscious K)respectively D)consists L)separa
27、tely E)easier M)skip F)estimates N)supervision G)healthier O)survey H)inspire 37 【 C1】 38 【 C2】 39 【 C3】 40 【 C4】 41 【 C5】 42 【 C6】 43 【 C7】 44 【 C8】 45 【 C9】 46 【 C10】 Section B 46 Genetically Modified FoodsFeed the World? AIf you want to spark a heated debate at a dinner party, bring up the topic
28、about genetically modified foods. For many people, the concept of genetically altered, high-tech crop production raises all kinds of environmental, health, safety and ethical questions. Particularly in countries with long agrarian traditionsand vocal green lobbiesthe idea seems against nature. BIn f
29、act, genetically modified foods are already very much a part of our lives. A third of the corn and more than half the soybeans and cotton grown in the U. S. last year were the product of biotechnology, according to the Department of Agriculture. More than 65 million acres of genetically modified cro
30、ps will be planted in the U. S. this year. The genetic is out of the bottle. CYet there are clearly some very real issues that need to be resolved. Like any new product entering the food chain, genetically modified foods must be subjected to rigorous testing. In wealthy countries, the debate about b
31、iotech is tempered by the fact that we have a rich array of foods to choose fromand a supply that far exceeds our needs. In developing countries desperate to feed fast-growing and underfed populations, the issue is simpler and much more urgent: Do the benefits of biotech outweigh the risks? DThe sta
32、tistics on population growth and hunger are disturbing. Last year the worlds population reached 6 billion. And by 2050, the UN estimates, it will be probably near 9 billion. Almost all that growth will occur in developing countries. At the same time, the worlds available cultivable land per person i
33、s declining. Arable land has declined steadily since 1960 and will decrease by half over the next 50 years, according to the International Service for the Acquisition of Agri-Biotech Applications(ISAAA). How can biotech help? EBiotechnologists have developed genetically modified rice that is fortifi
34、ed with beta-carotene(-胡萝卜素 )which the body converts into vitamin Aand additional iron, and they are working on other kinds of nutritionally improved crops. Biotech can also improve farming productivity in places where food shortages are caused by crop damage attribution to pests, drought, poor soil
35、 and crop viruses, bacteria or fungi(真菌 ). FDamage caused by pests is incredible. The European corn borer, for example, destroys 40 million tons of the worlds corn crops annually, about 7% of the total. Incorporating pest-resistant genes into seeds can help restore the balance. In trials of pest-res
36、istant cotton in Africa, yields have increased significantly. So far, fears that genetically modified, pest-resistant crops might kill good insects as well as bad appear unfounded. GViruses often cause massive failure in staple crops in developing countries. Two years ago, Africa lost more than half
37、 its cassava(树薯 )cropa key source of caloriesto the mosaic virus(花叶病毒 ). Genetically modified, virus-resistant crops can reduce that damage, as can drought-tolerant seeds in regions where water shortages limit the amount of land under cultivation. Biotech can also help solve the problem of soil that
38、 contains excess aluminum, which can damage roots and cause many staple-crop failures. A gene that helps neutralize aluminum toxicity(毒性 )in rice has been identified. Many scientists believe biotech could raise overall crop productivity in developing countries as much as 25% and help prevent the los
39、s of those crops after they are harvested. HYet for all that promise, biotech is far from being the whole answer. In developing countries, lost crops are only one cause of hunger. Poverty plays the largest role. Today more than 1 billion people around the globe live on less than 1 dollar a day. Maki
40、ng genetically modified crops available will not reduce hunger if farmers cannot afford to grow them or if the local population cannot afford to buy the food those farmers produce. IBiotech has its own “distribution“ problems. Private-sector biotech companies in the rich countries carry out much of
41、the leading-edge research on genetically modified crops. Their products are often too costly for poor farmers in the developing world, and many of those products wont even reach the regions where they are most needed. Biotech firms have a strong financial incentive to target rich markets first in or
42、der to help them rapidly recoup the high costs of product development. But some of these companies are responding to needs of poor countries. JMore and more biotech research is being carried out in developing countries. But to increase the impact of genetic research on the food production of those c
43、ountries, there is a need for better collaboration between government agenciesboth local and in developed countriesand private biotech firms. The ISAAA, for example, is successfully partnering with the U. S. Agency for International Development, local researches and private biotech companies to find
44、 and deliver biotech solutions for farmers in developing countries. Will “Franken-foods“ feed the world? KBiotech is not a panacea(灵丹妙药 ), but it does promise to transform agriculture in many developing countries. If that promise is not fulfilled, the real losers will be their people, who could suff
45、er for years to come. LThe world seems increasingly to have been divided into those who favor genetically modified foods and those who fear them. Advocates assert that growing genetically altered crops can be kinder to the environment and that eating foods from those plants is perfectly safe. And, t
46、hey say, genetic engineeringwhich can induce plants to grow in poor soils or to produce more nutritious foodswill soon become an essential tool for helping to feed the worlds burgeoning(迅速发展的 )population. Skeptics contend that genetically modified crops could pose unique risks to the environment and
47、 to healthrisks too troubling to accept placidly. Taking that view, many European countries are restricting the cultivation and importation of genetically modified agricultural products. Much of the debate are concerned about of safety. But what exactly does recent scientific research say about the
48、hazards? MTwo years ago in Edinburgh, Scotland, eco-vandals stormed a field, crushing canola plants. Last year in Maine, midnight raiders hacked down more than 3,000 experimental poplar trees. And in San Diego, protesters smashed sorghum and sprayed paint over greenhouse walls. This far-flung outrag
49、e took aim at genetically modified crops. But the protests backfired: all the destroyed plants were conventionally bred. In each case, activists mistook ordinary plants for genetically modified varieties. NIts easy to understand why. In a way, genetically modified cropsnow on some 109 million acres of farmland worldwideare invisible. You cant see, taste or touch a gene inserted into a plant or sense its effect
