单选题In education, we’re also arguing about ______.

单选题{{B}}Passage 3{{/B}} The first navigational lights in the New World were probably lanterns hung at harbor en- trances. The first lighthouse was put up by the Massachusetts Bay Colony in 1716 on Little Brew- stet Island at the entrance to Boston Harbor. Paid for and maintained by "light dues" levied (征收) on ships, the original beacon was blown up in 1776. Until then there were only a dozen or so true lighthouses in the colonies. Little over a century later, there were 700 lighthouses. The first eight lanterns erected on the West Coast in the 1850's featured the same basic New England design: a Cape Cod dwelling with the tower rising from the center or standing close by. In New England and elsewhere, though, lighthouses reflected a variety of architectural styles. Since most stations in the Northeast were set up on rocky eminences (高处), enormous towers were not the rule. Some of them were made of stone and brick, others of wood or metal. Some of them stood on pilings or stilts; others were fastened to rock with iron rods. Farther south, from Maryland through the Florida Keys, the coast was low and sandy. It was often necessary to build tall towers there -- massive structures like the majestic lighthouse in Cape Hatteras, North Carolina, which was lit in 1870. 190 feet high, it is the tallest brick lighthouse in the country. Notwithstanding differences in construction appearence, most lighthouses in America shared several features: a light, living quarters, and sometimes a bell (or later a foghorn). They also had quarters, and something else in common: a keeper and usually the keeper's family. The keeper's essential task was trimming the lantern wick (灯芯) in order to maintain a steady, bright flame. The earliest keepers came from every industry -- they were seamen, farmers, mechanics, rough mill hands -- and appointments were often handed out by local customs commissioners as political plums. After the administration of lighthouse was taken over in 1852 by the United States Lighthouse Board, and agency of the Treasury Department, the keeper corps gradually became highly professional.

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单选题The big identity-theft bust last week was just a taste of what"s to come. Here"s how to protect your good name. HERE"S THE SCARY THING about the identity-theft ring that the Feds cracked last week: there was nothing any of its estimated 40000 victims could have done to prevent it from happening. This was an inside job, according to court documents. A lowly help-desk worker at Teledata Communications, a software firm that helps banks access credit reports online, allegedly stole passwords for those reports and sold them to a group of 20 thieves at $60 a pop. That allowed the gang to cherry-pick consumers with good credit and apply for all kinds of accounts in their names. Cost to the victims: $3 million and rising. Even scarier is that this, the largest identity-theft bust to date, is just a drop in the bit bucket. More than 700000 Americans have their credit hijacked every year. It"s one of crime"s biggest growth markets. A name, address and Social Security number—which can often be found on the Web—is all anybody needs to apply for a bogus line of credit. Credit companies make $1.3 trillion annually and lose less than 2% of that revenue to fraud, so there"s little financial incentive for them to make the application process more secure. As it stands now, it"s up to you to protect your identity. The good news is that there are plenty of steps you can take. Most credit thieves are opportunists, not well-organized gangs. A lot of them go Dumpster diving for those millions of "pre-approved" credit-card mailings that go out every day. Others steal wallets and return them, taking only a Social Security number. Shredding your junk mail and leaving your Social Security card at home can save a lot of agony later. But the most effective way to keep your identity clean is to check your credit reports once or twice a year. There are three major credit-report outfits: Equifax (at equifax. com), Trans-Union (www. transunion. come) and Experian (experian. com). All allow you to order reports online, which is a lot better than wading through voice-mail hell on their 800 lines. Of the three, I found Trans-Union"s website to be the cheapest and most comprehensive—laying out state-by-state prices, rights and tips for consumers in easy-to-read fashion. If you"re lucky enough to live in Colorado, Georgia, Maryland, Massachusetts, New Jersey or Vermont, you are entitled to one free report a year by law. Otherwise it"s going to cost $ 8 to $14 each time. Avoid services that offer to monitor your reports year-round for about $70; that"s $10 more than the going rate among thieves. If you think you"re a victim of identity theft, you can ask for fraud alerts to be put on file at each of the three credit-report companies. You can also download a theft-report form at www. consumer. gov/idtheft, which, along with a local police re- port, should help when irate creditors come knocking. Just don"t expect justice. That audacious help-desk worker was one of the fewer than 2% of identity thieves who are ever caught.

单选题Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds of thousands, and in some cases millions, of seeds, so microscopic and light that they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator. To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times. Once the right insect has been attracted, some orchids present all sorts of one-way obstacle courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time they have made themselves irresistible to collectors.

单选题{{B}}Text 2{{/B}} Tom Sponson, at fifty-three, was a thoroughly successful man. He had married a charming wife and built himself a good house in a London suburb. His son, Bob, nineteen, was doing well at Oxford; his daughter, April, aged sixteen, who was at a good school, had no wish to use makeup, to wear low frocks or to flirt. She still regarded herself as too young for these trifling amusements. Yet she was gay, affectionate and enjoyed life. All the same, for some time, Tom had been aware that he was working very hard for very little. His wife, Louise, gave him a peck in the morning when he left for the office, and if she were not at a party, a quick kiss when he came home in the evening. Her life was completely filled with the children, her clothes, keeping her figure slim, the house clean and smart, with her bridge, her tennis, her friends and her parties. The chidren were even more preoccupied-the boy with his own work and his friends, the girl with hers. They were polite to Tom, but when he came into a room there was at once a feeling of constraint. When they were alone together he perceived that they were slightly embarrassed and changed the subject of their conversation, whatever it was. Yet they did not seem to do this with their mother. He would find all three of them laughing at something and when he came in they would stop and gaze at him as if he had shot up through the floor. He said to himself, "it isn't only that they don't need me, but I'm a nuisance to them. I'm in the way." One morning, when he was just going to get into his car and his wife had come out to say goodbye, he suddenly made an excuse, saying, "Just a moment, I've left a letter" and went back to his desk, and then dashed out to the car and drove off, pretending to forget that goodbye had not been said. Immediately he felt that he could not stand any more of this existence; it was nonsense. His wife and children did not depend on the business any more; it could be taken over tomorrow and it would support all of them in comfort. Actually he would miss the business; it was his chief interest. But if he had to give it up for the sake of freedom, a break in this senseless life, he could do even that. Yes, joyfully. As he circled Trafalgar Square, only a few hundred yards from his office, he told himself that he could not go on. It was as if at that moment when he had dodged the customary goodbye a contact had been broken. The conveyor belt which was his life had been stopped. An hour later he was in the train for Westford, a seaside place where he had once spent a summer holiday before his marriage. On the luggage rack was a new suitcase, containing pajamas, shoes, a new kit as for a holiday by the sea even new paper backs for a wet day.

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单选题 A hundred years ago, pioneer psychologist William James declared that humans use only a{{U}} {{U}} 1 {{/U}} {{/U}}part of their potential. All too many of tasks are{{U}} {{U}} 2 {{/U}} {{/U}}or tedious. Then the{{U}} {{U}} 3 {{/U}} {{/U}}operates almost on idle. The result can be{{U}} {{U}} 4 {{/U}} {{/U}}mistakes or dragged-out drudgery because we can't get with it. The perfect state of flow, Csikszentmihalyi explains, {{U}}{{U}} 5 {{/U}} {{/U}}l when our skills exactly measure up to the challenges{{U}} {{U}} 6 {{/U}} {{/U}}us. {{U}}{{U}} 7 {{/U}} {{/U}},says Csikszentmihalyi, the way to get a dull but{{U}} {{U}} 8 {{/U}} {{/U}}job done easily is to make it harder. Turn a boring task into a{{U}} {{U}} 9 {{/U}} {{/U}}game, so than you{{U}} {{U}} 10 {{/U}} {{/U}}all your potential. Invent rules,{{U}} {{U}} 11 {{/U}} {{/U}}l goals,{{U}} {{U}} 12 {{/U}} {{/U}}yourself against a clock. This increased challenge may be what{{U}} {{U}} 13 {{/U}} {{/U}}you into your zone. I was once asked to write an {{U}}{{U}} 14 {{/U}} {{/U}}to a{{U}} {{U}} 15 {{/U}} {{/U}}l of articles on lawsuit. Words came slowly as I plugged away at a {{U}}{{U}} 16 {{/U}} {{/U}}that didn't{{U}} {{U}} 17 {{/U}} {{/U}}me. I made{{U}} {{U}} 18 {{/U}} {{/U}}trips to the coffeepot. Then the magazine's art director phoned to say he'd created an eye-catching{{U}} {{U}} 19 {{/U}} {{/U}}for the article. Could the first{{U}} {{U}} 20 {{/U}} {{/U}}of the article begin with J?

单选题Alan Greenspan owes his reputation much to

单选题By reading The Open and Closed Mind, we may ______.

单选题 Predictions of many robots in industry have yet come true. For ten years or more, manufacturers of big robots have explained how their machines can make industry more competitive and productive. The maker for{{U}} (21) {{/U}}robots is over-supplied now, and the driving force of the robotics revolution is{{U}} (22) {{/U}}to be with makers of machines that handle a few kilos at most. "Heavy-robot manufacturers are in some difficulty{{U}} (23) {{/U}}finding customers. They are offering big{{U}} (24) {{/U}}just to get in the door. There has been a{{U}} (25) {{/U}}growth everywhere in the numbers of robots, so we admit we are either deceiving{{U}} (26) {{/U}}or that the market is slowly growing." said John Reekie, chairman of Colen Robotics. "The following things must happen{{U}} (27) {{/U}}the robotics revolution to occur. We must achieve widespread robot literacy,{{U}} (28) {{/U}}there has been a computer{{U}} (29) {{/U}}program. There must be a robot policy. Finally, some kind of{{U}} (30) {{/U}}intelligence needs to be{{U}} (31) {{/U}}." Colen makes educational robots and machine tools. It is small{{U}} (32) {{/U}}with companies like ASEA or Fujitsu Fanuc. But Galen with others and departments in universities such as Surrey, Manchester, and Durham possess an advantage{{U}} (33) {{/U}}the giants. The big companies sell very expensive{{U}} (34) {{/U}}to businesses with expert knowledge in automation. The{{U}} (35) {{/U}}companies make robots for teaching people, and now they have realized that there is a need for small.{{U}} (36) {{/U}}robots that they can meet. The little companies either bring their educational machines{{U}} (37) {{/U}}an industrial standard or design from the start. One technique that they all adopt is to choose{{U}} (38) {{/U}}components where possible. The major cost of making{{U}} (39) {{/U}}their models is the electronics, which will fall in price. There is{{U}} (40) {{/U}}scope for reductions in mechanical costs. The sue of standard parts, which are easily replaced, should give these robots a mechanical life of something in the order of five years.

单选题The expression "play safe" probably means

单选题Howlongdoesaninterviewusuallylastaccordingtothespeaker?A.Atleast45minutes.B.From30to45minutes.C.Lessthan30minutes.D.Morethan45minutes.

单选题Unsought goods

单选题Which of the following sentence is true according to the passage?