单选题The Australian National Day is chosen to commemorate

单选题Paragraphs 2 and 3 are written to ______.

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单选题We can infer from the last paragraph that Mr. Duffy was in a (n)_________mood.

单选题The home of golf is ______.A. Canada B. Wales C. England D. Scotland

单选题The bizarre antics of sleepwalkers have puzzled police, perplexed scientists, and fascinated writers for centuries. There is an endless supply of stories about sleepwalkers. Persons have been said to climb on steep roofs, solve mathematical problems, compose music, walk through plate glass windows, and commit murder in their sleep. How many of these stories have a basic in fact, and how many are pure fakery? No one knows, but if some of the most sensational stories should be taken with a barrel of salt, others are a matter of record. There is an early medical record of a somnambulist who wrote a novel in his sleep. And the great French writer Voltaire knew a sleepwalker who once got out of bed, dressed himself, made a polite bow, danced a minuet, and then undressed and went back to bed. At the University of Iowa, a student was reported to have the habit of getting up in the middle of the night and walking three-quarters of a mile to the Iowa River. He would take a swim and then go back to his room to bed. The world"s champion sleepwalker was supposed to have been an Indian, who walked sixteen miles along a dangerous road without realizing that he had left his bed. Second in line for the title is probably either a Vienna housewife or a British farmer. The woman did all her shopping on busy streets in her sleep. The farmer, in his sleep, visited a veterinarian miles away. The leading expert on sleep in American claims that he had never seen a sleepwalker. He is Dr. Nathaniel Kleitman, a physiologist at the University of Chicago. He is said to know more about sleep than any other living man, and during the last thirty-five years had lost a lot of sleep watching people sleep. Says he, "Of course, I know that there are sleepwalkers because I have read about them in the newspapers. But none of my sleepwalkers ever walked, and if I were to advertise for sleepwalkers for an experiment, I doubt that I"d get many takers." Sleepwalking, nevertheless, is a scientific reality. Like hypnosis, it is one of those dramatic, eerie, awe—inspiring phenomena that sometimes border on the fantastic. It lends itself to controversy and misconceptions. What is certain about sleepwalking is that it is a symptom of emotional disturbance, and that the only way to cure it is to remove the worries and anxieties that cause it. Doctors say that somnambulism is much more common than is generally supposed. Some have estimated that there are four million somnambulists in the United States. Others set the figure even higher. Many sleepwalkers do not seek help and so are never put on record, which means that an accurate count can never be made. The simplest explanation of sleepwalking is that it is the acting out of vivid dream. The dream usually comes from guilt, worry, nervousness, or some other emotional conflict. The age-old question is: Is the sleepwalker actually awake or asleep? Scientists have decided that he is about half-and-half. Dr. Zelda Teplitz, who made a ten-year study of the subject, says, "Some people stay awake all night worrying about their problems. The sleepwalker thrashes them out in his sleep. He is awake in the muscular area, partially asleep in the sensory area." In other words, a person can walk in his sleep, move around, and do other things, but he does not think about what he is doing. There are many myths about sleepwalkers. One of the most common is the idea that it"s dangerous or even fatal to waken a sleepwalker abruptly. Experts say that the shock suffered by a sleepwalker suddenly awakened is no greater than that suffered in waking up to the noise of an alarm clock. Another mistaken belief is that sleepwalkers are immune to injury. Actually most sleepwalkers trip over rugs or bump their heads on doors at some time or other. What are the chances of a sleepwalker committing a murder or doing something else extraordinary in his sleep? Some cases of this have been reported, but they very rarely happen. Of course the few cases that are reported receive a great deal of publicity. Dr. Teplitz says, "Most people have such great inhibitions against murder or violence that they would awaken—if someone didn"t waken them." In general, authorities on sleepwalking agree with her. They think that people will not do anything in their sleep that is against their own moral code. Parents often explain their children"s—or their own—nocturnal oddities as sleepwalking. Sleepwalking is used as an excuse for all kinds of irrational behavior. There is a case on record of a woman who dreamed that her house was on fire and flung her baby out of the window. Dr. Yeplitz believes that this instance of irrational behavior was not due to somnambulism. She believes the woman was seriously deranged or insane, not a sleepwalker. For their own protection, chronic sleepwalkers have been known to tie themselves in bed, lock their doors, hide the keys, bolt the windows, and rip up all sorts of gadgets or wake themselves if they should get out of bed. Curiously enough, they have an uncanny way of avoiding their own traps when they sleepwalk, so none of their tricks seem to work very well. Some sleepwalkers talk in their sleep loudly enough to wake someone else in the family who can then shake them back to their senses. Children who walk in their sleep usually outgrow the habit. In many adults, too, the condition is more or less temporary. If it happens often, however, the sleepwalker should seek help. Although sleepwalking itself is nothing to become alarmed about, the problems that cause the sleepwalking may be very serious.

单选题Which of the following cities is located on the eastern coast of Australia?

单选题Australia's most common plants are ______.A. oaks and elms B. palms and pinesC. willows and poplars D. eucalypts and wattles

单选题Which part in America is the earliest to be found and taken over by early settlers?

单选题 Questions 9 and 10 are based on the following news.

单选题The Preface to Shakespeare and Lives of the Poets are the works of critic A. G. B. Shaw. B. Samuel Johnson. C. Ben Johnson. D. E. M. Foster.

单选题Francis Bacon is best known for his ______ which greatly influenced the development of this literary form.

单选题Cooperative competition. Competitive cooperation. Confused? Airline alliances have travellers scratching their heads over what's going on in the skies. Some folks view alliances as a blessing to travellers, offering seamless travel, reduced fares and enhanced frequent-flyer benefits. Others see a conspiracy of big businesses, causing de- creased competition, increased fares and fewer choices. Whatever your opinion, there's no escaping airline alliances: the marketing hype is unrelenting, with each of the two mega-groupings, One world and Star Alliance, promoting itself as the best choice for all travellers. And, even if you turn away from their ads, chances are they will figure in any of your travel plans. By the end of the year, One world and Star Alliance will between them control more than 40% of the traffic in the sky. Some pundits predict that figure will be more like 75% in 10 years. But why, after years of often ferocious competition, have airlines decided to band together? Let's just say the timing is mutually convenient. North American airlines, having exhausted all means of earning customer loyalty at home, have been looking for ways to reach out to foreign flyers. Asian carriers are still hurting from the region-wide economic downturn that began two years ago -- just when some of the airlines were taking delivery of new aircraft. Alliances also allow carriers to cut costs and increase profits by pooling manpower resources on the ground (rather than each airline maintaining its own ground crew) and code-sharing--the practice of two partners selling tickets and operating only one aircraft. So alliances are terrific for airlines--but are they good for the passenger? Absolutely, say the airlines: think of the lounges, the joint FFP (frequent flyer programme) benefits, the round-the-world fares, and the global service networks. Then there's the promise of "seamless" travel: the ability to, say, travel from Singapore to Rome to New York to Rio de Janiero, all on one ticket, without having to wait hours for connections or worry about your bags. Sounds utopian? Peter Buecking, Cathay Pacific's director of sales and marketing, thinks that seamless travel is still evolving. "It's fair to say that these links are only in their infancy. The key to seamlessness rests in infrastructure and information sharing. We're working on this." Henry Ma, spokesperson for Star Alliance in Hong Kong, lists some of the other benefits for consumers : "Global travellers have an easier time making connections and planning their itineraries. " Ma claims alliances also assure passengers consistent service standards. Critics of alliances say the much-touted benefits to the consumer are mostly pie in the sky, that alliances are all about reducing costs for the airlines, rationalizing services and running joint marketing programmes. Jeff Blyskal, associate editor of Consumer Reports magazine, says the promotional ballyhoo over alliances is much ado about nothing. "I don't see much of a gain for consumers: alliances are just a marketing gimmick. And as far as seamless travel goes, I'll believe it when I see it. Most airlines can't even get their own connections under control, let alone coordinate with another airline. " Blyskal believes alliances will ultimately result in decreased flight choices and increased costs for consumers. Instead of two airlines competing and each operating a flight on the same route at 70% capacity, the allied pair will share the route and run one full flight. Since fewer seats will be available, passengers will be obliged to pay more for tickets. The truth about alliances and their merits probably lies somewhere between the travel utopia presented by the players and the evil empires portrayed by their critics. And how much they affect you depends on what kind of traveller you are. Those who've already made the elite grade in the FFP of a major airline stand to benefit the most when it joins an alliance: then they enjoy the FFP perks and advantages on any and all of the member carriers. For example, if you're a Marco Polo Club "gold" member of Cathay Pacific's Asia Miles FFP, you will automatically be treated as a valuable customer by all members of One world, of which Cathay Pacific is a member even if you've never flown with them before. For those who haven't made the top grade in any FFP, alliances might be a way of simplifying the earning of frequent flyer miles. For example, I belong to United Airline's Mile- age Plus and generally fly less than 25,000 miles a year. But 1 earn miles with every flight l take on Star Alliance member--All Nippon Airways and Thai Airways. If you fly less than I do, you might be smarter to stay out of the FFP game altogether. Hunt for bargains when booking flights and you might be able to save enough to take that extra trip anyway. The only real benefit infrequent flyers can draw from an alliance is an inexpensive round-the-world fare. The bottom line: for all the marketing hype, alliances aren't all things to all people--but everybody can get some benefit out of them.

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单选题 Countless medical studies have concluded that playing too many video games can be harmful to one's health. Now, however, it turns out that one of the more popular video-game consoles on the market, the Xbox 360, could be used to save lives. A computer scientist at the University of Warwick in England has devised a way to use an Xbox 360 to detect heart defects and help prevent heart attacks. The new tool has the potential to revolutionize the medical industry because it is both faster and cheaper than the computer systems that are currently used by scientists to perform complex heart research. The system, detailed in a study in the August edition of the Journal of Computational Biology and Chemistry, is based on a video-game demo created by Simon Scarle two years ago when he was a software engineer at Microsoft's Rare studio, the division of the U.S.-based company that designs games for the Xbox 360. Scarle modified a chip in the console so that instead of producing graphics for the game, it now delivers data tracking how electrical signals in the heart move around damaged cardiac cells. This creates a model of the heart that allows doctors to identify heart defects or conditions such as arrhythmia, a disturbance in the normal rhythm of the heart that causes it to pump less effectively. "This is a clever use of a processing chip...to speed up calculations of heart rhythm. What used to take hours can be calculated in seconds, without having to employ an extremely expensive, high-performance computer," Denis Noble, director of Computational Physiology at Oxford University, tells TIME. To create a heart model now, researchers must use supercomputers or a network of PCs to crunch millions of mathematical equations relating to the proteins, cells and tissues of the heart, a time-consuming and costly process. Scarle's Xbox system can deliver the same results at a rate five times faster and 10 times more cheap, according to the study. "These game consoles aren't just glorified toys. They are pieces of very powerful computing hardware," Scarle says. "I can see this...being most useful for students and early-career scientists to just quickly and cheaply grab that extra bit of computing power they otherwise wouldn't be able to get." Scarle attributes his breakthrough creation to his unusual background of working as a software engineer in the gaming industry and performing electrocardio-dynamics research at the University of Sheffield in England. The idea for the heart-modeling tool came from a "little shooter game" he developed at Microsoft in which a player tries to gun down enemies in an arena meant to resemble a heart. "I did a gameified version of my old cardiac code. I could actually present some 'proper' science based on the cool things us game developers do," Scarle says. The Xbox 360 isn't the only video-game console that is being used for scientific research. At the University of Massachusetts campus in Dartmouth, scientists are using Sony PlayStations to simulate black-hole collisions to try to solve the mystery of what happens when a supermassive black hole swallows a star. So perhaps parents shouldn't be too worried if their children are spending an inordinate amount of time playing video games. Who knows, today's Grand Theft Auto or Halo addict may end up discovering a new moon around Saturn or finding a cure for cancer.

单选题A: What do you think of James?B: A fine day, isn't it?In the dialogue, B's answer flouts which of the four maxims of CP?A. The maxim of quality. B. The maxim of quantity.C. The maxim of manner. D. The maxim of relation.

单选题______refers to long narrative poems which deal with heroic deeds and noble characters.[A] Epic[B] Pastoral[C] Sonnet[D] Ode

单选题Howmanypeoplewereonboardwhenthetourbuscrashed?A.Five.B.Six.C.Seven.D.Forty-five.

单选题Who does the word "Stakhanovites" refer to according to the passage?

单选题In history hostility to Gypsies in Europe resulted in their persecution by all the following EXCEPT