单选题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 be- cause 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 caressingly bring us to the core of the economic life of the states. During 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 if other countries do not control their emissions. Whereas the UN team calls on the emissions 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 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 tropical diseases, especially where there had been one.

单选题I am grateful for your ______ invitation, and I'd like to accept your offer with pleasure.

单选题______the temperature failing so rapidly, we couldn't go on with the experi ment.

单选题When the writer says "I'd heard of people getting hives from nerves," the phrase of "get- ting hives from nerves "(Paragraph 3) most probably means

单选题And while we ______ have a great deal of trouble adjusting to a climate that gets 2 degrees Centigrade warmer over the next century, an ice age by mid-century ______ be unimaginably devastating.

单选题Assuming that a constant travel-time budget, geographic constraints and short-term infrastructure constraints persist as fundamental features of global mobility, what long-term results can one expect? In high-income regions, 【C1】______North America, our picture suggests that the share of traffic【C2】______supplied by buses and automobiles will decline as high-speed transport rises sharply. In developing countries, we【C3】______the strongest increase to be in the shares first for buses and later for automobiles. Globally, these【C4】______in bus and automobile transport are partially offsetting. In all regions, the share of low-speed mil transport will probably continue its strongly【C5】______decline. We expect that throughout the period 1990—2050, the【C6】______North American will continue to devote most of his or her 1. 1-hour travel-time【C7】______to automobile travel. The very large demand【C8】______air travel(or high-speed mil travel)that will be manifest in 2050【C9】______to only 12 minutes per person a day; a little time goes a long way in the air. In several developing regions, most travel【C10】______in 2050 will still be devoted to nonmotorized modes. Buses will persist【C11】______the primary form of motorized transportation in developing countries for decades.【C12】______important air travel becomes, buses, automobiles and【C13】______low-speed trains will surely go on serving vital functions.【C14】______of the super-rich already commute and shop in aircraft, but average people will continue to spend most of their travel time on the【C15】______.

单选题We regard him as ______ to our cause because he accepted all our suggestions without hesitation.

单选题Although the "on line" life style has dominated the majority of city youth, most people in the remote countryside still think internet or something is______to their life.

单选题The temperature of the atmosphere becomes colder as {{U}}elevation {{/U}} increases.

单选题It is ______ that makes the female horse to bend down and lick its newborn foal.

单选题From the perspective of the poor, it seems obvious that the benefits would outweigh the costs. The benefits to poor people of no longer being poor would be enormous. Their intake of protein and other nutrition would increase their choice of housing and the quality of the housing they select would improve. Crimes related to poverty(that the poor generally commit against each other)— murder, rape, robbery, burglary, child abuse, spouse abuse, and drug related crimes—would probably decrease. Apart from these specific improvements, the poor would benefit by an increase in the control over their own lives. Increased purchasing power represents a part of this. More money to spend not only permits the purchase of additional goods and services but greatly widens the choice of goods and services that potentially could be purchased. The poor, if no longer poor, would also gain greater control of various non-fiscal aspects of their lives. As their economic stake in society increases, their political stake is likely to increase as well. They will note more, and thus exercise a greater influence in municipal, local, state, and federal elections. As a result, elected officials will respond to them more effectively. Agencies of government—police, fire, sanitation, streets, parks, and so forth—will also respond more promptly and effectively. Public school systems in particular will be more responsive. The former poor who dislike the education their children are getting in public schools will have an increased ability to " vote with the dollars " by enrolling their children in previously unaffordable private schools or moving to living quarters in previously unaffordable communities. Responding to the former poor will become a matter of survival for the teachers and administrators who depend for their livelihood on the public schools. While the benefits to the poor of enjoying a right not to be poor may for the most part be obvious, some potential disadvantages—to them — should also be considered. First, will not the creation of a right not to be poor reduce the motivation of the poor to exert themselves to get out of poverty? It is arguable that to the extent that self-help is rendered unnecessary to achieve a minimum living standard, many of the poor will refrain from enrolling in the schools, undertaking the enterprises, and in general taking the risks that today elevate many of them not only above the poverty line but into the middle class and beyond. The establishment of a right not to be poor could result, arguably, in the poor as a whole—or at least a substantial percentage of them—ending up economically worse off in the long run. Second, to the extent that a guarantee of non-poverty reduces the poor's incentive to exert themselves, will there not be a parallel reduction in their innovative contributions to the economic well-being of our entire society—including the well-being of the former poor along with the well-being of the rest of us? In other words, a guarantee of non-poverty may arguably induce the poor child — whose deprivation would otherwise have spurred the child to graduate from high school, finish college, get a Ph.D. in physics, and win the Nobel Prize for devising a way to produce cheaper energy — to refrain, because of the security offered by the guarantee, from embarking on a course that would greatly benefit all former poor people as well as society as a whole.

单选题The task won't feel so ______ if you break it down into small, easy-to-accomplish steps.

单选题[此试题无题干]

单选题The idea of public works projects as a device to prevent or control depression was designed as a means of creating job opportunities for unemployed workers and as a "pump-priming" device to aid business to revive. It was conceived during the early years of the New Deal Era (1933--1937). By 1933, the number of unemployed workers had reached about 13 million. This meant that about 50 million people--about one-third of the nation--were without means of support. At first, direct relief in the form of cash or food was provided these people. This made them recipients of government charity. In order to remove this stigma and restore to the unemployed some measure of respectability and human dignity, a plan was devised to create governmentally sponsored work projects that private industry would not or could not provide. This would also stimulate production and revive business activity. The best way to explain how this procedure is expected to work is to explain how it actually worked when it was first tried. The first experiment with it was the creation of the Works Project Administration (WPA). This agency set up work projects in various fields in which there were many unemployed. For example, unemployed actors were organized into theater projects, orchestras were organized for unemployed musicians, teaching projects for unemployed teachers, and even writers' projects for unemployed writers. Unemployed laborers were put to work building or maintaining roads, parks, playgrounds, or public buildings. These were all temporary "work relief" projects rather than permanent work opportunities. More substantial work projects of a permanent nature were organized by another agency, the Public Works Administration (PWA). This agency undertook the planning of construction of schools, houses, post offices, dams, and other public structures. It entered into contracts with private construction firms to erect them, or it loaned money to local or state governments which undertook their construction. This created many jobs in the factories producing the material as well as in the projects themselves, and greatly reduced the number of unemployed. Still another agency which provided work projects for the unemployed was the Civilian Conservation Corps (CCC). This agency provided job opportunities for youths aged 16 to 20 to work in national parks or forests clearing land, guarding against fires, building roads, or doing other conservation work. In the event of a future depression, the federal government might revive any or all of the above methods to relieve unemployment and stimulate business.

单选题Recent surveys show a majority of Europeans polled have a mostly unfavorable view of the United States and that ______ for Bush and Americans in general are at all-time highs. A. disgust B. disguise C. disdain D. dismay

单选题The two men were found guilty of armed robbery, and ______ to four years' imprisonment.

单选题The author reminds those who are talking about geoengineering of________

单选题In doing so, however, he has shown not that art assists scientific understanding, but that scientific insight can provide a ______ stimulus to some of the most powerful of artistic interpretations.