单选题The room is dim and quiet.

单选题Global Warming At the Kyoto conference on global warming in December 1997, it became abundantly clear how complex it has become to work out international agreements relating to the environment because of economic concerns unique to each country. It is no longer enough to try to forbid certain activities or to reduce emissions of certain substances. The global challenges of the interlink between the environment and development increasingly bring us to the core of the economic life of states. During the late 1980s we were able, through international agreements, to make deep cuts in emissions harmful to the ozone layer. These reductions were made possible because substitutions had been found for many of the harmful chemicals and, more important, because the harmful substances could be replaced without negative effects on employment and the economies of states. Although the threat of global warming has been known to the world for decades and all countries and leaders agree that we need to deal with the problem, we also know that the effects of measures, especially harsh measures taken in some countries, would be nullified (抵消) if other countries do not control their emissions. Whereas the UN team on climate change has found that the emissions of carbon dioxide would have to be cut globally by 60% to stabilize the content of CO2 in the atmosphere, this path is not feasible for several reasons. Such deep cuts would cause a breakdown of the world economy. Important and populous (人口众多的) low or medium income countries are not yet willing to undertake legal commitments about their energy uses. In addition, the state of world technology would not yet permit us to make such a big leap. We must, however, find a solution to the threat of global warming early in the 21st century. Such a commitment would require a degree of shared vision and common responsibilities new to humanity. Success lies in the force of imaginations, in imagining what would happen if we fail to act. Although many living in cold regions would welcome the global warming effect of a warmer summer, few would cheer the arrival of the subsequent diseases, especially where there had been none.

单选题She had a natural courtesy combined with unshakable conviction .

单选题It is {{U}}postulated{{/U}} that a cure for the disease will have been found by the year 2020. A.challenged B.assumed C.deducted D.decreed

单选题I am not certain whether he will come.

单选题We can no longer put up with his actions.

单选题There is an abundant supply of cheap labor in this country. A. steady B. plentiful C. an extra D. a stable

单选题The express train went through the station with Ua mighty/U roar.

单选题 Irradiating Food Irradiating fruits, vegetables, pork and chicken to kill insects and bacteria has been approved by the Food and Drug Administration over the past decade or so. Irradiation of other meats, such as beef and lamb, is being reviewed. Federal approval does not require that industry adopt the process, and few food processors presently offer irradiated products. Market studies have shown that many consumers are afraid that eating irradiated foods may cause cancer, despite scientific studies that prove the safety of treated foods. Some people argue that more severe government inspection, higher food-safety standards, and more careful-preparation practices by consumers are all that is needed to ensure that food is safe. Consequently, companies currently see no need to spend millions of dollars outfitting processing plants with the equipment necessary for a process that very few shoppers are in favor of. All supermarkets that sell irradiated food must label the food either directly on the packaging, or, in the case of bulk items like fruits and vegetables, by placing a sign nearby. There is no requirement for the labeling of irradiated food served by chain restaurants or hospitals that buy directly from distributors, nor any regulations for products that contain irradiated ingredients. Presently, the FDA allows food to be treated with three types of radiation—gamma rays, high-energy electrons, and X rays—and sets limits on doses, depending on the type of food. The principle is that the dose to be used for a certain type of food should not exceed the amount that is sufficient to kill most harmful insects and bacteria present in it. Different types of food, because of their molecular compositions, may require different doses of radiation.

单选题The parents always restrain their daughter from swimming in the nearby pool.

单选题The audience at the music hall applauded enthusiastically after the piano solo. A. laughed B. clapped C. jumped D. chatted

单选题The union representative put across her argument very effectively.

单选题The American Family In the American family the husband and wife usually share important decision making. When the children are (51) enough, they take part as well. Foreigners are often surprised by the permissiveness (宽容) of American parents. The old rule that "children should be seen and not heard" is rarely (52) , and children are often allowed to do (53) they wish without strict control of their parents. The father seldom expects his children to listen to him (54) question, and children are encouraged to be (55) at an early age. Some people believe that American parents carry this freedom (56) far. Others think that a strong father image would not (57) the American values of equality and independence. Because Americans emphasize the importance of independence, young people are expected to (58) their parental families by the time they have (59) their late teens or early twenties. Indeed, not to do so is often regarded as a (60) , a kind of weak dependence. This pattern of independence often results in serious (61) for the aging parents of a small family. The average American is expected to live (62) the age of 70. The job-retirement age is (63) 65. The children have left home, married, and (64) their own households. At least 20 percent of all people over 65 do not have enough retirement incomes. (65) the major problem of many elderly couples is not economic. They feel use less and lonely with neither an occupation nor a close family group.

单选题Home Fibre Plans Survive Downturn The latest figures on superfast broadband delivered by fibre to the home(FTTH) shows 18% growth over the last survey compiled in late 2008. The continued growth suggests that the global economic downturn has not hit plans to build a fibre infrastructure. Sweden tops the list of nations rolling out the technology, with 10.9% of its broadband customers using fibre. Karel Helsen, president of Europe's Fibre-To-The-Home Council, said the growth matched predictions that were revised when the credit crunch started to make itself felt. By 2012, the FISH Council expects that 13 million people across 35 European nations will have their broadband delivered by fibre. Such services would start at speeds of 100 megabits per second(mbps), said Mr. Helsen. Around Europe more than 233 projects were underway to lay the fibre that would connect homes or buildings to the net, said Mr. Helsen. Many of those, he said, were being operated by local governments or smaller net firms. They were interested in FTTH because of the economic and social benefits it brought, said Mr. Helsen. The low delay in data transfer in high-speed fibre networks made possible novel uses of broadband, he said. "No delay is very important," he said," specifically if you talk about applications that are time dependent such as personal communications, conference calls or video calls where delays cause a lot of interference. "While early FTTH services were concentrated in cities, said Mr. Helsen, many more were reaching out to rural areas for e—health and e—learning projects. Separate studies show that all FTTH infrastructure carl have a direct impact on local economic output, said Mr. Helsen. The UK, France and Germany have yet to break into the list of top ten FTTH nations.

单选题It is a pity that he finally turned down my suggestions on this issue.A. regainedB. regardedC. reflectedD. refused

单选题Even in a highly modernized country, Umanual/U work is still needed.

单选题Money and Love Paul had long promised to marry Clara. But at thirty-three he met and married Alice. Clara was driven mad. Paul was taken to court. The judge ordered him to pay Clara $600 because of the broken promise. Paul had to borrow the money from a moneylender. He agreed to pay back $5 a month—for twenty years. His wages at the time were $16 a month. Paul and Alice were poor but not unhappy. They had little enough food, certainly, even before the children began to arrive. Each month Paul paid $5 to the moneylender. He worked hard, never taking a holiday. In time, there were seven mouths to feed. Illness was always with them. It grew serious when the oldest child was eight. The years of hunger weakened the family, because each month Paul paid $5. The details of the sickness were ugly, but the result was this: After twelve years of family life, Paul was alone in the world. He lived alone, except for memories. Work was not now a god for him. it was a pain-killer. Each month he paid, and in time the twenty years ended. From that moment his wages were his own. One day, it was a holiday—he went to the seaside. He sat down on a seat by the sea. A middle-aged woman came and sat down near him. They recognized each other at once. The woman said, "The $600 has been in the bank since the day it was paid to me. It is now $6,000, and I have kept it for you. Will you let me share it with you?" "No," said Paul, gently. "Each thousand is a lost life in a desert between us. It can never bring any happiness."

单选题Professor Taylor"s talk has indicated that science has a very strong influence on the everyday life of non-scientists as well as scientists.

单选题The carts are painted to Ucorrespond/U to the themed area they are used in.

单选题My best friend Udisgraced/U his athletics team by cheating.