单选题He seemed {{U}}reluctant{{/U}} to help us.

单选题Success often depends on temperament .

单选题Experiments have shown that, contrary to our expectation, people tend to treat you the way you treat them.

单选题下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。{{B}}第一篇{{/B}} {{B}}Modern Sun Worshippers{{/B}} People travel for a lot of reasons. Some tourists go to see battlefields or religious shrines. Others are looking for culture, or simply want to have their pictures taken in front of famous places. But most European tourists are looking for a sunny beach to lie on. Northern Europeans are willing to pay a lot of money and put up with a lot of inconveniences for the sun because they have so little of it. Residents of cities like London, Copenhagen, and Amsterdam spend a lot of their winter in the dark because the days are so short, and much of the rest of the year in the rain. This is the reason the Mediterranean has always attracted them. Every summer, more than 25 million people travel to Mediterranean resorts and beaches for their vacation. They all come for the same reason: sun! The huge crowds mean lots of money for the economies of Mediterranean countries. Italy's 30,000 hotels are booked solid every summer. And 13 million people camp out on French beaches, parks, and roadsides. Spain's long sandy coastline attracts more people than anywhere else. 37 million tourists visit yearly, or one tourist for every person living in Spain. But there are signs that the area is getting more tourism than it can handle. The Mediterranean is already one of the most polluted seas on earth. And with increased tourism, it's getting worse. The French can't figure out what to do with all the garbage left by campers around St. Tropez. And in many places, swimming is dangerous because of pollution. None of this, however, is spoiling anyone's fun. The Mediterranean gets more popular every year with tourists. Obviously, they don't go there for clean water and solitude. They tolerate traffic jams and seem to like crowded beaches. They don't even mind the pollution. No matter how dirty the water is, the coastline still looks beautiful. And as long as the sun shines, it's still better than sitting in the cold rain in Berlin, London, or Oslo.

单选题The full-sun method may affect the following EXCEPT_____.

单选题As both a religion and a social force, Puritanism has made a widespread influence in the United States.

单选题Can you mend the hole in my shirt?

单选题下面有3篇短文，每篇短文后有5道题，每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题，从4个选项中选择1个最佳答案。{{B}}第一篇{{/B}} The Beginning of American Literature American has always been a land of beginnings. After Europeans 'discovered' America in the fifteenth century, the mysterious New World became for many people a genuine hope of a new life, an escape from poverty and persecution, a chance to start again. We can say that, as nation, America begins with that hope. When, however, does American literature begin? American literature begins with American experiences. Long before the first colonists arrived, before Christopher Columbus, before the Northmen who 'found' America about the year 1,000, Native Americans lived here. Each tribe's literature was tightly woven into the fabric of daily life and reflected the unmistakably American experience of lining with the land. Another kind of experience, one filled with fear and excitement, found its expression in the reports that Columbus and other explorers sent home in Spain, France and England. In addition, the journals of the people who lived and died in the New England wilderness tell unforgettable tales of hard and sometimes heartbreaking experiences of those early years. Experience, then, is the key to early American literature. The New World provided a great variety of experiences, and these experiences demanded a wide variety of expressions by an even wider variety of early American writers. These writers included John Smith, who spent only two-and-a-half years on the American continent. They included Jonathan Edwards and William Byrd, who thought of themselves as British subjects, never suspecting a revolution that would create a United States of America with a literature of its own. American Indians, explorers, Puritan ministers, frontier wives, plantation owner -- they are all the creators of the first American literature.

单选题Can you {{U}}account for{{/U}} your absence from the class last Thursday?

单选题Even in a highly modernized country, manual work is still needed.

单选题Practically all species of animals communicate either through sounds or through soundless codes. A. Simultaneously B. Almost C. Absolutely D. Basically

单选题I wonder who first conceived the idea of cutting a hole in the door.

单选题In the film, the hero has to rescue the president from an evil scientist.A. a weakB. a cleverC. a wickedD. a Brilliant

单选题The operation could prolong his life by two or three years.

单选题Pool Watch Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble. The Royal Society for the Prevention of Accidents says that on average 15 people drown in British pools each year, but many more suffer major injury after getting into difficulties. Now a French company has developed an artificial intelligence system called Poseidon that sounds the alarm when it sees someone in danger of drowning. When a swimmer sinks towards the bottom of the pool, the new system sends an alarm signal to a poolside monitoring station and a lifeguard"s pager. In trials at a pool in Ancenis, near Nantes, it saved a life within just a few months, says Alistair McQuade, a spokesman for its maker, Poseidon Technologies. Poseidon keeps watch through a network of underwater and overheard video cameras. AI software analyses the images to work out swimmers trajectories. To do this reliably, it has to tell the difference between a swimmer and the shadow of someone being cast onto the bottom or side of the pool. "The underwater environment is a very dynamic one, with many shadows and reflections dancing around." says McQuade. The software does this by "projecting" a shape in its field of view onto an image of the far wall of the pool. It does the same with an image from another camera viewing the shape from a different angle. If the two projections are in the same position,the shape is identified as a shadow and is ignored. But if they are different, the shape is a swimmer and so the system follows its trajectory. To pick out potential drowning victims, anyone in the water who starts to descend slowly is added to the software"s "pre-alert" list, says McQuade. Swimmers who then stay immobile on the pool bottom for 5 seconds or more are considered in danger of drowning. Poseidon double-checks that the image really is of a swimmer, not a shadow, by seeing whether it obscures the pool"s floor texture when viewed from overhead. If so, it alerts the lifeguard, showing the swimmer"s location on a poolside screen. The first full-scale Poseidon system will be officially opened next week at a pool in High Wycombe. Buckinghamshire. One man who is impressed with the idea is Travor Baylis, inventor of the clockwork radio. Baylis runs a company that installs swimming pools, and he was once an underwater escapologist with a circus. "I say full marks to them if this works and can save lives," he says. But he adds that any local authority spending ￡30,000-plus on a Poseidon system ought to be investing similar amounts in teaching children to swim.

单选题By the stop-motion process, many separate shots can be combined into a single image.

单选题The cost of elections in the United States is {{U}}borne{{/U}} by both the government and the private sector.

单选题Micro-chip Research Center Created A research center has been set up in this far-east country to develop advanced micro-chip production technology. The center, which will start out with about US $14 million, will help the country develop its chip industry without always depending on imported technology. The center will make use of its research skills and facilities to develop new technology for domestic chip plants. The advent of the center will possibly free the country from the situation that it is always buying almost-outdated technologies from other countries, said the country's flagship chipmaker. Currently, chip plants in this country are in a passive situation because many foreign governments don't allow them to import the most advanced technologies, fearing they will be used for military purposes. Moreover, the high licensing fees they have to pay to technology provider are also an important reason for their decision of self-reliance. As mainstream chip production technology shifts from one generation to the next every three to five years, plants with new technology can make more powerful chips at lower costs, while plants with out-dated equipment, which often cost billions of dollars to build, will be marginalized by the maker. More than 10 chip plants are being built, each costing millions of US. dollars, the majority of that money goes to overseas equipment vendors and technology owners—mainly from Japan and Singapore. Should the new center play a major role in improving the situation in industry, the country admits the US $14 million in vestment is still rather small. This country is developing comprehensive technologies. Most of the investment will be spent on setting alliances with technology and intellectual property owners.

单选题Ants always {{U}}put{{/U}} food {{U}}away{{/U}} in Autumn. A. store B. steal C. eat D. carry

单选题She married her boss's son because she wanted a husband from a wealthy family. But she had to {{U}}bear{{/U}} her husband's bad temper.