大学英语六级模拟题及答案

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大学英语六级模拟题及答案

　　Part I Writing (30 minutes)

大学英语六级模拟题及答案

　　Directions: For this part, you are allowed 30 minutes to write a composition on the topic: Salary or Interest. You should write at least 150 words following the outline given below:

　　Salary or Interest

　　1. 如今的大学毕业生面临的职业选择：兴趣重要还是工资重要

　　2. 你的观点

　　3. 结论

　　Part II Reading Comprehension (Skimming and Scanning) (15 minutes)

　　Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer sheet 1. For questions 1-4, markY (for YES) if the statement agrees with the information given in the passage; N (for NO) if the statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage.For questions 5-10, complete the sentences with the information given in the passage.

　　April Fools' Special: History's Hoaxes

　　Happy April Fools' Day. To mark the occasion, National Geographic News has compiled a list of some of the more memorable hoaxes in recent history. They are the lies, darned(可恨的) lies, and whoppers(弥天大谎)that have been perpetrated on the gullible(易受骗的)and unsuspecting to fulfill that age-old desire held by some to put the joke on others. Internet Hoaxes

　　The Internet has given birth to a proliferation(增殖)of hoaxes. E-mail inboxes are bombarded on an almost daily basis with messages warning of terrible computer viruses that cause users to delete benign(良性)chunks of data from their hard drives, or of credit card scams that entice the naive to give all their personal information, including passwords and bank account details, to identity thieves. Other e-mails give rise to wry(歪曲的)chuckles, which is where this list begins. Ban Dihydrogen Monoxide(一氧化二氢)

　　City officials in Aliso Viejo, California, were so concerned about the dangers of dihydrogen monoxide that they scheduled a vote last month on whether to ban foam(泡沫)cups from city-sponsored events after they learned the chemical was used in foam-cup production.

　　Officials called off the vote after learning that dihydrogen monoxide is the scientific term for water. "It's embarrassing," city manager David J. Norman told the Associated Press. "We had a paralegal(律师助手)who did bad research."

　　Indeed, the paralegal had fallen victim to an official-looking Web site touting the dangers of dihydrogen monoxide. An e-mail originally authored in 1990 by Eric Lechner, then a graduate student at the University of California, Santa Cruz, claimed that dihydrogen monoxide "is used as an industrial solvent and coolant, and is used in the production of Styrofoam(聚苯乙烯泡沫塑料)."

　　Other dangers pranksters(爱开玩笑的人)associated with the chemical included accelerated corrosion and rusting, severe burns, and death from inhalation.

　　Versions of the e-mail continue to circulate today, and several Web sites, including that of the Coalition to Ban DHMO, warn, tongue-in-cheek, of water's dangers. Alabama Changes Value of Pi

　　The April 1998 newsletter put out by New Mexicans for science and Reason contains an article titled "Alabama Legislature Lays Siege to Pi". It was penned by April Holiday of the Associmated Press (sic) and told the story of how the Alabama state legislature voted to change the value of the mathematical constant Pi from 3.14159 to the round number of 3.

　　The ersatz(假的)news story was written by Los Alamos National Laboratory physicist Mark Boslough to parody(滑稽地模仿)legislative and school board attacks on the teaching of evolution in New Mexico.

　　At Boslough's suggestion, Dave Thomas, the president of New Mexicans for science and Reason, posted the article in its entirety to the Internet newsgroup Talk. Origins on April 1. (The newsgroup hosts a lively debate on creation vs. evolution.) Later that evening Thomas posted a full confession to the hoax. He thought he had put all rumors to bed.

　　But to Thomas's surprise, however, several newsgroup readers forwarded the article to friends and posted it on other newsgroups.

　　When Thomas checked in on the story a few weeks later, he was surprised to learn that it had spread like wildfire. The telltale signs of the article's satirical intent, such as the April 1 date and misspelled "Associmated Press" dateline, had been replaced or deleted.

　　Alabama legislators were bombarded with calls protesting the law. The legislators explained that the news was a hoax. There was not and never had been such a law. TV and Newspaper Hoaxes

　　Before the advent of the Internet, and even today, traditional media outlets such as newspapers, radio, and television, have sometimes hoaxed their audiences. The deceptions run the gamut from purported natural disasters to wishful news. Swiss Spaghetti (意大利式细面条) Harvest

　　Alex Boese, curator of the Museum of Hoaxes, a regularly updated Web site that also appeared in book form in November 2002, said one of his favorite hoaxes remains one perpetrated by the British Broadcasting Company.

　　On April 1, 1957, the BBC aired a report on the television news show Panorama about the bumper spaghetti harvest in southern Switzerland.

　　Viewers watched Swiss farmers pull pasta off spaghetti trees as the show's anchor, Richard Dimbleby, attributed the bountiful harvest to the mild winter and the disappearance of the spaghetti weevil.

　　The broadcaster detailed the ins and outs of the life of the spaghetti farmer and anticipated questions about how spaghetti grows on trees. Thousands of people believed the report and called the BBC to inquire about growing their own spaghetti trees, to which the BBC replied, "Place a sprig of spaghetti in a tin of tomato sauce and hope for the best." "It was a great satirical effect about British society," Boese said. "British society really was like that at that time. The British have a tendency to be a bit insulated(绝缘的) and do not know that much about the rest of Europe."

　　Taco Liberty Bell

　　On April 1, 1996, readers in five major U.S. cities opened their newspapers to learn from a full page announcement that the Taco Bell Corporation had purchased the Liberty Bell from the U.S. government. The announcement reported that the company was relocating the historic bell from Philadelphia, Pennsylvania, to Irvine, California. The move, the corporation said in the advertisement, was part of an "effort to help the national debt".

　　Hundreds of other newspapers and television shows ran stories related to the press release on the matter put out by Taco Bell's public relations firm, PainePR. Outraged citizens called the Liberty Bell National Historic Park in Philadelphia to express their disgust. A few hours later the public relations firm released another press announcement stating that the stunt was a hoax.

　　White House press secretary Mike McCurry got into the act when he remarked that the government would also be "selling the Lincoln Memorial to Ford Motor Company and renaming it the Lincoln-Mercury Memorial". Crop Circles

　　Strange, circular formations began to appear in the fields of southern England in the mid-1970s, bringing busloads of curious onlookers, media representatives, and believers in the paranormal out to the countryside for a look.

　　A sometimes vitriolic(讽刺的)debate on their origins has since ensued(跟着发生), and the curious formations have spread around the world, becoming more and more elaborate as the years go by.

　　Some people consider the crop formations to be the greatest works of modern art to emerge from the 20th century, while others are convinced they are signs of extraterrestrial communications or landing sites of UFOs.

　　The debate rages even today, although in 1991 Doug Bower and Dave Chorley, two elderly men from Wiltshire County, came forward and claimed responsibility for the crop circles that appeared there over the preceding 20 years. The pair made the circles by pushing down nearly ripe crops with a wooden plank suspended from a rope. Moon Landing—a Hoax?

　　Ever since NASA sent astronauts to the moon between 1969 and 1972, skeptics have questioned whether the Apollo missions were real or simply a ploy to one-up(领先)the Soviet Union during the Cold War. The debate resurfaced and reached crescendo levels in February 2001, when For television aired a program called Conspiracy Theory: Did We Land on the Moon?

　　Guests on the show argued that NASA did not have the technology to land on the moon. Anxious to win the space race, NASA acted out the Apollo program in movie studios, they said. The conspiracy theorists pointed out that the pictures transmitted from the moon do not include stars and that the flag the Americans planted on the moon is waving, even though there is though to be no breeze on the moon.

　　NASA quickly refuted these claims in a series of press releases, stating that any photographer would know it is difficult to capture something very bright and very dim on the same piece of film. Since the photographers wanted to capture the astronauts striding across the lunar surface in their sunlit space suits, the background stars were too faint to see. As for the flag, NASA said that the astronauts were turning it back and forth to get in firmly planted in the lunar soil, which made it wave.

　　1. Some people have the age-old desire to put the joke on others. 2. According to the passage, the only form of Internet hoaxes is e-mail hoax.

　　3. Dihydrogen monoxide is a very dangerous chemical, which is often used as an industrial solvent.

　　4. Dihydrogen monoxide can accelerate corrosion and rusting, and cause sever burns and even death from inhalation.

　　5. The reason why the ersatz news that Alabama changed the value of Pi spread wildly was that ________ forwarded

　　the article to friends and posted it on other newsgroups.

　　6. Traditional media outlets such as ________ may still hoax their audiences nowadays.

　　7. According to Boese, many people believed the report of Swiss spaghetti harvest because the British did not know ________.

　　8. According to a hoax announcement, the Taco Bell Corporation bough the Liberty Bell and moved it to Irvine to help ________.

　　9. The crop circles were thought to be the greatest works of modern art, the signs of ________ or landing sites of UFOs.

　　10. Some people thought that NASA acted out the Apollo program in movie studios partially because the pictures transmitted from the moon do not include ________.

　　Part IV Reading Comprehension (Reading in Depth) (25 minutes)

　　Section A

　　Directions: In this section, there is a short passage with 5 questions or incomplete statements. Read the passage carefully. Then answer the questions or complete the statements in the fewest possible words on Answer Sheet 2. Questions 47 to 51 are based on the following passage.

　　Wild ducks and other migratory(迁移的) birds could be important carriers of deadly bird flu, researchers say. Even so, the infectious-disease experts say there is no solid basis for killing wild birds to protect poultry and minimize the risk of human infection.

　　The European team investigating the global spread of the H5N1 strain of avian influenza(禽流感)says certain duck species may be infecting wild bird populations. Geese and wading birds are also possible vectors(带菌者)of the virus, the team says.

　　The team's study was led by Bjrn Olsen of Umea University in Sweden. Olsen runs Europe's largest wild-bird flu monitoring program.

　　Studies have shown that influenza viruses in lake water, generally passed via bird feces(粪), can stay infectious for up to 30 days. The migration or feeding behavior of dabbling ducks could at least partially explain the spread of the H5N1 strain of bird flu, the researchers add.

　　This group of duck species includes mallards, teal, pintails, and others that feed at or near the surface, where viruses in water are most likely to be picked up. Perhaps as a result, dabblers have the highest known rates of avian influenza infection, the study says. For instance, nearly 13 percent of mallards tested positive for bird flu. Other species tested include the American black duck (18.1 percent), blue-winged teal (11.5 percent), and northern pintail (11.2 percent).

　　However, bird flu viruses appear to exist in ducks in a low-pathogenic form, meaning infection doesn't usually lead to severe illness and death.

　　"Dabbling ducks are for sure the prime hosts for low pathogenic viruses," said study co-author Ron Fouchier, a virologist at the Erasmus Medical Center in Rotterdam, Netherlands. "But the big question is, how much of our knowledge about these viruses can we translate to high-pathogenic viruses such as the H5N1 strain of bird flu?"

　　In poultry avian viruses can mutate(变异)into more virulent influenza strains, including H5N1. If this mutated virus then finds its way back into wild populations, the birds could then spread the disease through migration.

　　Some scientists have argued that wild birds infected with HN51 would be too ill to migrate. Swans, for instance, appear to be particularly vulnerable to the strain. "Swans apparently drop dead quite easily, but they are unlikely to be the vector because they are not going to fly very far if they are dead," Fouchier said.

　　But the study team says that some birds that have been purposely infected for the sake of research show that wild birds can survive H5N1. "For some reason H5N1 has adapted so it no longer kills dabbling ducks," Fouchier said. This means the ducks may be able to spread the virus over a wide area.

　　The study team says migratory geese may also be vectors, because they often graze in huge flocks, a practice that could encourage transmission.

　　Migrating ducks, the researchers add, "could provide an intercontinental bridge" for bird flu to North America, which has not yet had any known cases of H5N1.

　　47. According to the author, what may be the possible carriers of bird flu?

　　48. The main sources of influenza viruses in lake water are ________, which may stay infectious for up to 30 days.

　　49. By saying "bird flu viruses appear to exist in ducks in a low-pathogenic form" (Para. 6), the author suggests that infection ________.

　　50. On what condition can the birds spread the influenza through migration?

　　51. According to the study team, ________ is a practice that can encourage transmission of the bird flu.

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