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。请根据文章的内容，从每题所给的4个选项中选择1个最佳答案。{{B}}第一篇{{/B}} {{B}} New Foods and the New World{{/B}} In the last 500 years, nothing about people -- not their clothes, ideas, or languages— has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree (可可树) by South American lndians. The Spanish introduced it to the rest of the world during the 1500%. And although it was very expensive, it quickly became fashionable. In London, shops where chocolate drinks were served became important meeting places. Some still exist today. The potato is also from the New World. Around 1600, the Spanish brought it from Peru to Europe, where it soon was widely grown. Ireland became so dependent on it that thousands of Irish people starved when the crop failed during the "Potato Famine (饥荒)" of 1845 -- 1846, and thousands more were forced to leave their homeland and move to America. There are many other foods that have traveled from South America to the Old World. But some others went in the opposite direction. Brazil is now the world's largest grower of coffee, and coffee is an important crop in Colombia and other South American countries. But it is native to Ethiopia, a country in Africa. It was first made into a drink by Arabs during the 1400's. According to an Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee bush. He tried one and experienced the "wide-awake" feeling that one third of the world's population now starts the day with.

单选题The papaya is a tropical fruit usually eaten raw. A．unpeeled B．uncooked C．unsweetened D．unsalted

单选题Fainting, or a temporary loss of consciousness, may be brought about by an {{U}}insufficient{{/U}} supply of oxygen to the brain.

单选题Tales of the Terrible Past It is not the job of fiction writers to analyze and interpret history. Yet by writing about the past in a vivid and compelling manner, storytellers can bring earlier eras to life and force readers to consider them seriously. Among those taking on the task of recounting history are some black writers who attempt to examine slavery from different points of view. Nobel Prize-winning author Toni Morrison deals specifically with the legacy of slavery in her book Beloved . The main character in this novel, a former slave called Sethe, lives in Ohio in the years following the Civil War, but she cannot free herself from her horrific memories. Through a series of flashbacks and bitter reminiscences, the reader learns how and why Sethe escaped from the plantation she had lived on; the fate of her husband, who also tried to escape; and finally, what happened to the child called Beloved. Morrison"s scenes of torture and murder are vivid and strongly convey the desperation of the slaves and the cruelty of their owners. Charles Johnson"s Middle Passage approaches slavery from a different, yet no less violent, vantage point. His main character, Rutherford Calhoun, is a ne"er-do-well free black American who stows away on a slave ship bound for Africa to collect its "cargo". Put to work after he is discovered, Calhoun witnesses firsthand the appalling conditions in which the captured Africans are transported. When they finally rebel and take over the ship, he finds himself in the middle—and is forced to come to terms with who he is and what his values are. Neither Beloved nor Middle Passage is an easy read, but both exemplify African American writers, attempts to bring significant historical situations alive for a modern audience.

单选题The latest {{U}}census{{/U}} suggests that the population is declining in this country.

单选题The author of the report is well familiar with the problems in the hospital because he has been working there for many years.

单选题The representation of a cultural phenomenon is usually a logical consequence of some physical aspect in the life style of the people.

单选题Although fish have no vocal organs, they still are able to make noises. A. signals B. bubbles C. sounds D. ripples

单选题At the meeting, Smith argued mightily in favor of the proposal.

单选题Excessive Demands on Young People Being able to multitask is hailed by most people as a welcome skill, but not according to a recent study which claims that young people between the ages of eight and eighteen of the so-called Generation M are spending a considerable amount of their time in fruitless efforts as they multitask. It argues that, in fact, these young people are frittering away as much as half of their time again as they would if they performed the very same tasks one after the other. Some young people are juggling an ever larger number of electronic devices as they study. At the same time that they are working, young adults are also surfing on the Internet, or sending out emails to their friends, and/or answering the telephone and listening to music on their iPods or on another computer. As some new device comes along, it is also added to the list rather than replacing one of the existing devices. Other research has indicated that this multitasking is even affecting the Way families themselves function as young people are too wrapped up in their own isolated worlds to interact with the other people around them. They can no longer greet family members when they enter the house nor can they eat at the family table. All this electronic wizardry is supposedly also seriously affecting young people"s performance at university and in the workplace. When asked about their perception of the impact of modern gadgets on their performance of tasks, the overwhelming majority of young people gave a favorable response. The response from the academic and business worlds was not quite as positive. The former feel that multitasking with electronic gadgets by children affects later development of study skills, resulting in a decline in the quality of writing, for example, because of the lack of concentration on task completion. They feel that many undergraduates now urgently need remedial help with study skills. Similarly, employers feel that young people entering the workforce need to be taught all over again, as they have become deskilled. While all this may be true, it must be borne in mind that more and more is expected of young people nowadays; in fact, too much. Praise rather than criticism is due in respect of the way today"s youth are able to cope despite what the older generation throw at them.

单选题He has been granted Uasylum/U in France.

单选题He {{U}}ceaselessly{{/U}} interrupted me by asking many irrelevant questions. A. carelessly B. carefully C. continually D. consequently

单选题A notably short man, he plays basketball with his staff several times a week. A．practically B．considerably C．remarkably D．fairly

单选题We have to ask them to {{U}}quit{{/U}} talking in order that all people present could hear us clearly.

单选题During the Second World War, all important resources in the U. S. were Uallocated/U by the federal government.

单选题We had to turn to dried milk as fresh milk wasn"t available.

单选题The company takes environmental issues into account wherever possible.

单选题Screen Test Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens early enough, the disease can often be treated 1 . According to a survey published last year, 21 countries have screening programmes. Nine of them, including Australia, Canada, the U.S. and Spain, 2 women under 50. But the medical benefits of screening these younger 3 are controversial, partly because the radiation brings a small risk of inducing cancer. 4 , younger women must be given higher doses of X-rays because their breast tissue is denser. Researchers at the Polytechnic University of Valencia analyzed the effect 5 screening more than 160,000 women at 11 local clinics. After estimating the women"s cumulative dose of radiation, they used two models to calculate the number of extra cancers this 6 cause. The mathematical model recommended by Britain"s National Radiological Protection Board (NRPB) predicted that the screening programme would 7 36 cancers per 100,000 women, 18 of them fatal. The model preferred by the UN Scientific Committee on the Effects of Atomic Radiation 8 a lower figure of 20 cancers. The researchers argue that the level of radiation-induced cancers is "not very significant" 9 to the far larger number of cancers that are discovered and treated. The Valencia programme, they say, detects between 300 and 450 10 of breast cancer in every 100,000 women screened. But they 11 that the risk of women contracting cancer from radiation could be reduced by between 40 and 80 percent if screening began at 50 instead of 45, because they would be exposed to 12 radiation. The results of their study, they suggest, could help "optimise the technique" for breast cancer screening. " 13 is a trade-off between the diagnostic benefits of breast screening and its risks," admits Michael Clark of the NRPB. But he warns that the study should be interpreted with caution. "On the 14 of the current data, for every 10 cancers successfully detected and prevented there is a risk of 15 one later in life. That"s why radiation exposure should be minimised in any screening programme."

单选题The experimenters thought Washoe was intelligent__________

单选题We reckoned there was only one man who is fit for the post.