问答题这是一个拥有悠久历史的国度。在这里，你看到的是一种公开的传统，而不是隐私。

问答题随着家庭搬出其稳定的社区，离开了多年的朋友，脱离了大家庭的关系，日常的信息交流被切断了，需要时就可以获得可靠信息的信心也随之而去了。生活中最简单方面的无意识的信息交流也被切断。所以，过去通过大家庭随意交流就能学到的东西现在必须有意识地去学。

问答题Faced with growing evidence that avian influenza is spreading in birds, the World Health Organization on Wednesday signed an agreement with the Swiss pharmaceutical company Roche Holding to build up its stockpile of medicines in case of a pandemic in humans. Under the agreement, Roche will reserve three million treatments of its Tamiflu antiviral medicine for use by the UN agency in case of a worldwide human pandemic of avian flu. "It's just enough to deal with an initial outbreak," said Jong-Wook Lee, director-general of the WHO. "But clearly this is not enough to deal with a full pandemic." The agency says only 57 people in Indonesia, Vietnam, Thailand and Cambodia have died, mainly from contact with infected birds. The virus has killed millions of chickens and led to preventive culling across Asia since late 2003. Sustained human-to-human infection has not yet been recorded. But the World Health Organization warns that bird flu, which first appeared in Hong Kong in 1997, could mutate genetically, making it easier for humans to catch and transmit the disease among themselves. Signs the disease has spread recently to birds in Siberia and Kazakhstan are adding to concerns, the WHO says. A panel of European Union experts will convene Thursday in Brussels to discuss measures to prevent the spread of bird deaths to European poultry. When asked whether he thought a widespread outbreak in humans was imminent, Lee said: "We don't know when it will come. But it would be hugely irresponsible if the WHO and member states did not take preventive measures now." Roche declined to give figures for its stockpiles of Tamiflu. A spokeswoman for the company, Martina Rupp, said it took from 12 to 18 months to deliver the drug after an order was placed—a relatively long time due to a complicated production process.

问答题The day before I was to leave I went walking across the river to the red mesa, where many times before I had gone to be alone with my thoughts.

问答题但是，我却看到了一次最雄伟、最瑰丽的日出景象。

问答题US photo giant Eastman Kodak is seeking to exploit their snapping. 11 It announced in March that it would spend more than $ 1 billion in the next few years to capture a share of the Chinese market. "China is one of the fastest growing markets for photography, and its double-digit growth will assure that it moves from the number three rank to number one or two, exceeding Japan and perhaps the United States in the next century," said Kodak chief George Fisher in a statement. 12 According to Kodak, fewer than one in 10 Chinese households owns a camera, which typically uses about four rolls of film per year. "If only half the people in China shot a single 36-exposure roll of film a year—a fraction of usage rates in other countries—that would swell the number of worldwide "clicks" by 25 percent," Fisher said. 13 National figures on camera ownership do not reflect the keen interest in photography in urban areas. "We have two cameras in the house, one for ourselves and one for our 14-year-old son who takes it with him on school trips," said Beijing resident Chen Yanan, who was recently laid off from her state-sector job. Chen"s son is not alone: "All his friends have a camera. They only cost 150 yuan." She added. 14 When the price of a 36-exposure roll of color film (20 yuan) and development costs (16 yuan) are taken into account, the pleasure of photography are affordable to most city inhabitants. And while the cheap costs mean the quality of film and prints is usually poor, the Chinese have nevertheless come a long way in their snapping. 15 In the 1970s, black and white photos hardly bigger than postage stamps were still common. Today more than 70 percent of photos are taken in color and the prints are much larger, according to a Beijing retailer.

问答题自1949年到2007年的58年中，河南省小麦播种面积增加21.24%，总产量增加了8.8倍，单产提高了7.1倍。

问答题I leave the vault, and as the guard closes the door, a marine archaeologist asks if I want to see anything else. As an example he shows me an astrolabe, a navigation tool that preceded the sextant. Few have survived. "We have three of the oldest known," he says. He directs me to a paper on astrolabes written by a Cuban colleague, who quoted a 16th-century instruction: "He who wants to take the sun with an astrolabe at sea, must be seated near the main mast, the place where the boat oscillates the least and is quiet." I want to take the measure of Cuba's past, so I tell the archaeologist I would like to go to the place where the plain things are. I am here not only to see treasures that glitter but also to see and touch objects that illumine moments of the past. Smiling, he takes me into storage rooms where he and other archaeologists preserve cargoes from four centuries of wrecks. Jumbled on these shelves is the stuff of Cuba's long reign as counting house and command center for Spain's New World colonies. I see knickknacks destined for one of the annual 18th-century trade fairs, where Cubans bought imports from Spain. I also see, pallid from centuries in the sea, dozens of little painted ceramic dogs, lions, cats, and deer later shipped from England. Stacked nearby are sets of dinner dishes, tankards, an hourglass, a bottle of very Old Spanish wine. On another day, in fading light, I walk the ramparts of E1 Morro, its lighthouse standing tall over Havana's harbor. The old fortress, by day a warren of tourist stops, changes by night, looming deeper into the shadows of Havana's past. As torches light the darkness, I watch Cuban soldiers, costumed as 18th-century Spanish sentries, march along the ramparts of the Castillo de San Carlos and fire a cannon that salutes the end of day. In Spanish times the cannon signaled the closing of the city gates and the drawing of a great chain across the harbor. Now the nightly ritual keeps open the sea-lane of memory between colonial past and present nationhood. Near the waterfront of Old Havana stands the Palace of the Captains General. Once the headquarters of the Spanish bureaucracy that governed Cuba, the palace now is the Museum of the city. Light and shadow play along its walls of coral limestone. Royal palms rustle in its lust courtyard. Up a stone stairway a gallery leads to the spacious office of Eusebio Leal Spengler, historian of the city of Havana and preserver of its past. A slight, precise man in a well-tailored dark suit, he is the obvious ruler of the palace. We had hardly shaken hands before he began rapidly talking about Havana, a city he sees simultaneously in past and present. The jewels I had viewed in the vault were about to become part of the treasure he guards for Cuba. He has selected an old fort to be their new home. "This," he said with a sweep of his hand, "is the city that changed history. Because of a decision by Philip Ⅱ all ships had to gather here to carry treasure back to Spain. And what treasure! Silk and aromatic wood from China, emeralds, silver."

问答题At higher CO2levels, certain types of plants, such as legumes, are expected to benefit more than others, and the nutritional quality of some crops will likely decline.

问答题从技术角度讲，除食品外，任何能改变我们生理和心理机能的物质都是药物。许多人错误地认为“药物”这个词仅指某些药品或嗜毒者服用的违禁化学品。他们没有认识到像酒精、烟草这些熟悉的物质也是药物。这也就是为什么许多医生和心理学家现在使用了一个更为中性的词——物质，他们常用“物质滥用”而不是“药物滥用”来清楚表明滥用酒精和烟草这样的物质同滥用海洛因和可卡因一样有害。 在我们生活的社会里，物质(药物)被广泛地使用于社交和治疗：服阿司匹林来缓解头痛，喝点儿酒来应酬，早晨喝咖啡来提神，吸支烟镇定一下情绪等。使用这些物质得到了社会认可，而且显然具有积极的一面，但什么时候变成滥用了呢?首先，大多数物质使用过量都会产生副作用，譬如中毒或反复使用一种物质可导致上瘾或对该物质(药物)的依赖。依赖的最初表现为耐受力增强，用量越来越大才能达到预期效果，一旦停用就会出现不舒服的停药症状。 作用于中枢神经系统改变感觉、情绪和行为的药物(物质)被称为对神经系统起作用的物质。这类物质一般分为兴奋剂、镇静剂或幻觉剂。兴奋剂主要起到加速或刺激中枢神经系统活动的作用，而镇静剂则相反：使其活动减慢。幻觉剂主要作用于人的感觉，以各种不同的方式对感觉加以扭曲和改变，其中包括产生幻觉。这些物质常被认为能“引起幻觉”(psychedelic一词源自希腊语，意思是“心灵显现”)，因为它们似乎能改变人的感觉状态。

问答题Two teams of astronomers using the Hubble Space Telescope have overturned several decades of conjecture and theory by ruling out the possibility that small, dim stars make up most of the mass in the universe. Until now, small stars known as faint red dwarfs were considered ideal candidates for the socalled "dark matter" that is believed to account for more than 90 percent of the mass of the universe. All visible celestial objects, such as planets, stars and galaxies, are believed to account for only 10 percent of the mass of the universe. The rest of the "missing mass" is presumably invisible because it does not emit or reflect light, or the light is too feeble to be detected. But dark matter can be indirectly detected due to its gravitational influence on other visible objects. According to Bacall, professor of natural science at the Institute of Advanced Study in Princeton, New Jersey and leader of one of the teams, the nature of dark matter, and its abundance, are among the most important questions in modem cosmology today. The ultimate fate of the universe will be determined by the amount of dark matter present. If there is not enough dark matter to bind the universe together gravitationally, it could continue expanding forever. If there is enough mass to hold the universe together gravitationally, the universe may slow down its expansion, come to a halt and begin to contract and eventually collapse.

问答题1．“货币”这个字眼还有更广泛的含义，包括任何用作交换手段的东西，不管它是什么形式。 2．只有当债权人相信，当他们向银行或其他授权机构递交这种信用工具将很可能取得法定货币时，他们才会提供信贷。 3．但是，货币的需求量不仅与交易的数量有关，而且还同成交的速度有关。 4．如果可供使用的货币太多，它的价值就会下跌，所能购买的物品就不能像过去，比如说5年以前那样多，这种情况就是所谓的“通货膨胀”。 5．银行最初是人们安全存放贵重物品的地方，但现在世界上一些大银行除了作贵重的私人财产的保护者外，还有许多别的作用。

问答题靠临时抱佛脚要想通过外语课是不可能的。

问答题Every year, humans churn out 8 billion tons of carbon dioxide, almost all of which goes straight into the atmosphere.

问答题1．这场辩论是由政府发动的，政府请任何一个对英国广播公司有意见的人——包括普通的听众和观众——来说说这个公司好在哪里或坏在哪里，甚至要说说他们是否认为这个公司值得被保留下来。 2．这种变化通过引入许多的专业因素从而适应了这个新时代的技术要求，并且它(这种变化)防止了效率的降低。这种效率的降低在精力充沛的创业者之后的第二代和第三代人(领导公司)的时候，经常会毁掉那些家族公司的财富。 3．这样巨大而非个人的对资金和产业的操纵极大地增加了股东的数量和他们作为一个阶级的重要性，这是国家生活中代表不负责任的财富的一个因素，这种财富不但远离了土地和土地拥有者的责任，而且几乎同样与公司的负责任的管理毫无关系。 4．像伯恩茅斯和伊斯特本这样的城镇的涌现是为了给那些数量很多的“舒适”阶级提供居住场所。这些人依赖于其丰厚收入而不工作，他们除了分红和偶尔参加一下股东大会，向管理层口授一下自己的命令之外，跟社会的其他阶层毫无瓜葛。 5．这样的“股东”对他拥有股份的公司所雇用的工人们的生活、思想和需求一无所知，而且他们对劳资双方的关系都不会产生积极的影响。

问答题实现这个目标易如反掌。

问答题{{B}}American Thanksgivings{{/B}} According to tradition, the first American Thanksgiving was celebrated in 1621 by the English Pilgrims who had founded the Plymouth Colony, now in the state of Massachusetts. The an important part of American colonial history, there is no evidence that any of the participants thought of the feast as a thanksgiving celebration. Two years later, during a period of drought, a day of fasting and prayer was changed to one of thanksgiving because rains came during the prayers. Gradually the custom prevailed among New Englanders to annually celebrate Thanksgiving after the harvest. Colonial governments and, later, state governments took up the Puritan custom of designating thanksgiving days to commemorate various public events. Gradually the tradition of holding annual thanksgiving holidays spread throughout New England and into other states. During the American Revolution (1775—1783 ) the Continental Congress proclaimed a national day of thanksgiving following the American victory at the Baffle of Saratoga in 1777.U.S. President George Washington proclaimed another day of thanksgiving in 1789 in honor of the ratification of the Constitution of the United States. In 1817 New York State adopted Thanksgiving Day as an annual custom, and many other states soon did the same. Most of the state celebrations were held in November, but not always on the same day. In 1863, during the American Civil War (1861—1865 ), President Abraham Lincoln proclaimed the last Thursday in November Thanksgiving Day in order to bolster the Union's morale. After the war, Congress established Thanksgiving as a national holiday, but widespread national observance caught on only gradually. Many Southerners saw the new holiday as an attempt to impose Northern customs on them. However, in the late 19th century Thanksgiving's emphasis on home and family appealed to many people throughout the United States. As a distinctly American holiday, Thanksgiving was also considered an introduction to American values for the millions of immigrants then entering the country. During the 20th century, as the population of the United States became increasingly urban, new Thanksgiving traditions emerged that catered to city dwellers. The day after Thanksgiving gradually became known as the first day of the Christmas shopping season. To attract customers, large retailers such as Macy's in New York City and Gimbel's in Philadelphia, Pennsylvania, began to sponsor lavish parades. By 1934 the Macy's parade, featuring richly decorated floats and gigantic balloons, attracted more than one million spectators annually.

问答题With the use of this chart, those "Yah, ha-ha-got-it-wrong-again" remarks from the weather-conscious public won't trouble the meteorological observatory too much any more.

问答题地球上散落分散着一百多个互不相连且面积不大的火山活动区，被地质学家称为热区。与大多数火山不同的是，它们都不位于形成地球表面的巨大漂移板块的连接处，许多反倒藏于板块的深处。大多数热区移动极其缓慢，有时，板块滑过这些热区，便留下死火山的痕迹。热区及其火山痕迹是板块移动的标志。 板块漂移现在已是无可争辩的了。以非洲和南美洲为例，由于有新物质嵌入洋底，两个大陆距离越来越远。虽然远隔大洋，但相互吻合的海岸线和好像跨越过海的地质特征，会使人想到这两个大陆曾是连成一片的。带着两个大陆漂移的板块做相对运动，这已得到详细说明，但不能把一个板块相对于另一板块的运动简单地解释为板块与地球内部之间的运动。人们还不能确定两个大陆是否在朝相反的方向运动，也不能确定是否是一个大陆原地不动，另一个大陆正在离它而去。位于地壳深处的热区提供了解决这一问题的测量仪。从热区的人口情况分析来看，似乎非洲板块是固定的，三千万年过去了也没有移动。

问答题As The Economist went to press, Steve Fossett, a famed and fearless aviator who went missing over the Nevada desert on September 3rd, had not been found. But it was not for want of trying. Mr. Fossett has been the subject of one of the most intensive civilian manhunts in history—and also, fittingly, one of the most technological. Besides the usual panoply of search-and-rescue aircraft deployed by America"s Civil Air Patrol, which wound down its search on September 17th, a different sort of search effort is being conducted online, using satellite photographs. These pictures of the search area are being provided by two firms that supply information to Google Earth: GeoEye and DigitalGlobe. The search itself is being co-ordinated by a corner of the Amazon empire called Mechanical Turk. This is an online job market which farms out tasks that humans are good at, but for which software is poorly equipped, like labeling images and transcribing speech. For the Fossett hunt, volunteers comb through the images and flag any that include what might be a plane or its wreckage. Among those who keep track of slightly less high-profile missing-person cases, the story will be strikingly familiar. In January Jim Gray, one of Microsoft"s programming gurus, disappeared while sailing near San Fransisco Bay. Mr. Gray was as big a celebrity among computer geeks as Mr. Fossett is among thrill-seekers, and the story played out in the same way. A friend at Amazon, Werner Vogels, got in touch with DigitalGlobe, and the firm provided thousands of images. Within four days, Mechanical Turk was hosting the images and more than 10,000 volunteers were sifting through them—though to no avail, as Mr. Gray was never found. Mechanical Turk"s director, Peter Cohen, says that now the search protocol has been established, conducting such "distributed" searches is much easier. The limiting factor is the satellite imagery—which obviously has to be up-to-date. At the moment, only three commercial satellites provide the kind of resolution that can help in efforts like the Fossett hunt. The firms that own them have governments as their main customers. This makes search-and-rescue imaging a secondary concern. That looks set to change, though. DigitalGlobe launched its second satellite, WorldView-1, on September 18th, and will launch a third late next year. GeoEye will launch its second next spring. This machine should set a new record for commercial satellite resolution: just 41cm (though that will still not be quite good enough to spot people as well as planes). In total, these launches will double the amount of satellite time that can be dedicated to requests for instant pictures. Cost, however, is less of a problem. Area such as the Nevada desert and San Francisco Bay are not strategic, so taking photographs of them does not displace paying customers—indeed, DigitalGlobe is not charging for the pictures being used in the Fossett hunt. With the extra capacity provided by the new satellites, the cost will drop even further. And Mr. Cohen is convinced that the internet will always come up with the few thousand volunteers needed to scour the resulting images. Far from being the invasion of privacy it was recently claimed to be, the technology behind Google Earth may in time grow to be a standard search-and-rescue tool.