单选题There is Uwidespread/U speculation that he is going to resign.

单选题Let's stop to take up another subject, ______ we? A. oughtn't B. don't C. shall D. should

单选题Under no_______ are children allowed to tell lies to their parents.

单选题 Lazy? Shy? Live in a cave? Those might not be positive attributes for the average human, but they sure are good for animals trying to survive in a changing environment. According to a new study, beasts that hibernate(冬眠)or crawl into holes are less likely to be listed as endangered than those that don't. Following up a previous study on extinct animals, which showed that species exhibiting "sleep or hide" (SLOH)behaviors did better than others, the researchers wanted to see if the same was true of modern crearures like moles and bears. To find out if our more timid animals have a leg up in the survival game, researchers made a master list of 443 sleep-or-hide mammals. With their list in hand, the team compared their 443 to the "red list" of endangered species published by the International Union for Conservation of Nature. As suspected, a sleepy of hiding animal was less likely to be on the red list than a regular animal, and a red-list animal was also less likely to be a SLOH-er. This makes a lot of sense, as animals that hide away in a cave or a tree hole are protected by their physical shelters from a variable environment outside, while hibernators enjoy a flexible metabolism(新陈代谢)that can help them adapt to a changing climate.

单选题Ann never dreams of ______ for her to be sent abroad very soon.

单选题Speaker A:Could you break a 100-dollar bill for me? Speeaker B:______

单选题(The more straighter) the sun's rays shine down (upon) the earth, (the more heat) they give to the part of the earth (they touch).A. The more straighterB. uponC. the more heatD. they touch

单选题Passage 1 The evolution of the social sciences has reached a crucial point that might be called a phase change in which old, atomistic, and impressionistic ways of doing research are superseded by a far more systematic and united methodology. To bring social sciences to the level of rigor already achieved by some of the physical sciences, a new type of facility will be needed. This will be a trans-disciplinary, Internet-based collaboratory that will provide social and behavioral scientists with the databases, software and hardware tools, and other resources to conduct worldwide research that integrates experimental, survey, geographic, and economic methodologies on a much larger scale than was possible previously. This facility will enable advanced research and professional education in economics, sociology, political science, social geography, and related fields. In many branches of social sciences, a new emphasis on the rigor of formal laboratory experimentation has driven researchers to develop procedure and software to conduct online interaction experiment using computer terminals attached to local area networks. The opportunity to open these laboratories to the Internet will reduce the cost per research participant and increase greatly the number of institutions, researchers, students, and research participants who can take part. The scale of social sciences experimentation can increase by an order of magnitude or more, examining a much wider range of phenomena and ensuring great confidence in results through multiple replication of crucial studies. Technology for administering questionnaires to very large numbers of respondents over the Internet will revolutionize survey research. Data from past questionnaire surveys can be the springboard for new surveys with vastly larger numbers of respondents at lower cost than by traditional methods. Integrated researches can combine modules using both questionnaire and experimental methods.Results can be linked via geographic analysis to other sources of data including census information, economic statistics, and data from other experiments and surveys. Longitudinal studies will conduct time-series comparisons across data sets to chart social and economic trends. Each new study will be designed so that the data automatically and instantly becomes part of the archives, and scientific publications will be linked to the data sets on which they are based so that the network becomes a universal knowledge system.

单选题Mike: I got a job from Dell. John: That"s great news. I"m very happy for you. Mike: Thanks. I feel like celebrating. Let"s go have a beer. ______.

单选题A: I have two tickets for tonight"s concert. Could you go with me? B: I"d like to, but I"m busy tonight. A: ______

单选题A. I'm going to pop out to get a sandwich.______ B. No, thank you. I'm all right. A. How can I help you? B. What can 1 do for you? C. Can I get you anything? D. I'll be back in a minute.

单选题 Passage 6 An important factor of leadership is attraction. This does not mean attractiveness in the ordinary sense, for that is a born quality {{U}}(1) {{/U}} our control. The leader has, nevertheless, to be a magnet; a central figure towards whom people are {{U}}(2) {{/U}}. Magnetism in that sense depends, first of all, {{U}}(3) {{/U}} being seen. There is a type of authority which can be {{U}}(4) {{/U}}. from behind closed doors, but that is not leadership. {{U}}(5) {{/U}} there is movement and action, the true leaders is in the forefront and may seem, indeed, to be everywhere at once. He has to become a legend; the {{U}}(6) {{/U}} for anecdotes, whether true or {{U}}(7) {{/U}}; an important character. One of the simplest devices is to be absent {{U}}(8) {{/U}} the occasion when the leader might be {{U}}(9) {{/U}} to be there, enough in itself to start a rumor about the vital business {{U}}(10) {{/U}} has detained him. To {{U}}(11) {{/U}} up for this, he can appeal when least expected, giving rise to another story about the interest he can display {{U}}(12) {{/U}} things which other folks might {{U}}(13) {{/U}} as trivial. With this gift for {{U}}(14) {{/U}} curiosity, the leader always combines a reluctance to talk about himself. His interest is {{U}}(15) {{/U}} in other people; he questions them and encourages them to talk and then remembers all {{U}}(16) {{/U}} is relevant. He never leaves a party {{U}}(17) {{/U}} he has mentally field a minimum dossier (档案) on {{U}}(18) {{/U}} present, ensuring that he knows {{U}}(19) {{/U}} to say when he meets them again. He is not artificially extrovert but he would usually rather listen {{U}}(20) {{/U}} talk. Others realize gradually that his importance needs no proof.

单选题Today's popular clothing chains ______ teenagers, who can be counted upon to change their tastes every 30 days. A. resort to B. attend to C. appeal to D. apply to

单选题In order for one to achieve the desired results in this experiment, it is necessary that (he) (work) as (lastly) (as) possible.

单选题{{B}}Questions 16-20 are based on the following passage:{{/B}} It might be supposed that greater efficiency could be achieved if several people worked together to solve a problem than if only one individual works on it. Although groups often may increase the motivation of their members to deal with problems, there are conflicts arising among members of a group. Problem solving needs the presence of an effective leader who not only provides direction, but also permits the orderly, constructive expression of different opinions; much of the leader's effort may be devoted to resolving differences. Success in problem solving also depends on the distribution of ability within a group. Although groups may reach a greater number of correct solutions, or may require less time to discover an answer, their efficiency is typically lower than that achieved by skilled individuals working alone. In brainstorming, a problem is presented to a group of people who then proceed to offer whatever they can think of. Theoretically these unrestricted suggestions increase the probability that at least some better solutions will appear. Nevertheless, studies show that when individuals work alone under similar conditions, performance tends to proceed more efficiently than it does in groups. Under special circumstances, however, a group may solve problems more effectively than a competent individual does. Group members may contribute different resources to a solutionthat no individual can achieve alone. Sometimes social demands may require group agreement on a single issue, as in making national economic or military policies under the governments. When only one among several solutions is correct, even if a group requires more time, it has a higher probability of identifying the right one than does an individual alone.

单选题{{B}}练习十七{{/B}} There are examples of what can be done by the retailer within his store, but perhaps the biggest opportunity for cost-reduction stems from cooperation between manufacturer and distributor in analyzing the total costs involved in moving the product from the factory to the shopper's basket. A helpful technique in this connection is the concept of "direct product profit" which is widely used in the United States. This is a technique for analyzing very precisely the costs and profits associated with each product line, with a view to isolating opportunities for cost reduction. For example, the in-store handling costs for particular item may be reduced if the manufacturer puts it in a large case or reduces the number of layers in the case. With the growing importance of prepackaging both for perishable items like meat and for non-food products, it is essential that the container should facilitate quick unloading and easy display. More obvious is the case for cooperation in reducing the costs of delivery and unloading; the night delivery experiment in Central London is an example of this. Many shops lack proper unloading facilities, often because the local authorities or private developers who built them were not aware of what was needed. Many retailers do not employ modern handling techniques. Some consumer goods manufacturers, such as Unilever, are playing a big part in streamlining the distribution system, simply because they are "market-oriented" companies which recognize the importance of low distribution costs. Even in Unilever, Lord Cole recalled the bad old days when distribution was looked upon as the least important of costs. The process of distribution will gradually be made less labor-intensive; the difficulty of finding additional labor, apart from its cost, is the major factor behind.