单选题For laymen ethnology is probably the most interesting of the biological sciences for the very reason that it concerns animals in their normal activities and therefore, if we wish, we can assess the possible dangers and advantages in our own behavioral roots. Ethnology also is interesting methodologically because it combines in new ways very scrupulous field observations with experimentation in laboratories. The field workers have had some handicaps in winning respect for themselves. For a long time they were considered as little better than amateur animal-watchers certainly not scientists, since their facts were not gained by experimental procedures: they could not conform to the hard-and-fast rule that a problem set up and solved by one scientist must be tested by other scientists, under identical conditions and reaching identical results. Of course many situations in the lives of animals simply cannot be rehearsed and controlled in this way. The fall flocking of wild free birds can't be, or the homing of animals over long distances, or even details of spontaneous family relationships. Since these never can be reproduced in a laboratory, are they then not worth knowing about? The ethnologists who choose field work have got themselves out of this impasse by greatly refining the techniques of observing. At the start of a project all the animals to be studied are live-trapped, marked individually, and released. Motion pictures, often in color, provide permanent records of their subsequent activities. Recording of the animals' voices by electrical sound equipment is considered essential, and the most meticulous notes are kept of all that occurs. With this material other biologists, far from the scene, later can verify the reports. Moreover, two field observers often go out together, checking each other's observations right there in the field. Ethnology, the word, is derived from the Greek ethos, meaning the characteristic traits or features which distinguish any particular group of people or, in biology, a group of animals such as a species. Ethnologists have the intention of studying "the whole sequence of acts which constitute an animal's behavior." In abridged dictionaries ethnology is sometimes defined simply as "the objective study of animal behavior," and ethnologists do emphasize their wish to eliminate myths.

单选题Tom and Ben have ______ again and stop talking to each other. A. fallen in B. fallen out C. fallen through D. fallen up

单选题Although the economy seemed, after a few tense months, to ______ the storm without serious long-term damage, the banks were hit hard.

单选题Henry Ford"s introduction of the assembly line vastly reduced the time it took ______ a car.

单选题He is believed to have been shot by a rival gang in ______for the shootings last week. A.revenge B.reserve C.reverse D.remedial

单选题As marketers increase their communication through both print and electronic channels, the opportunity for ______is growing rapidly. A. fraud B. jargon C. pledge D. motivation

单选题As usual, Singapore Airlines will reduce trans-pacific capacity in _________ seasons this year.

单选题Mr Chen complained about the ______ air-conditioner he bought from the company.

单选题Which of the following state statements is NOT true?

单选题Heavy rain in the south of England means that flooding is______.

单选题 The liberal view of democratic citizenship that developed in the 17th and 18th centuries was fundamentally different from that of the classical Greeks. The pursuit of private interests with as little interference as possible from government was seen as the road to human happiness and progress rather than the public obligations and involvement in the collective community that were emphasized by the Greeks. Freedom was to be realized by limiting the scope of governmental activity and political obligation and not through immersion in the collective life of the polis. The basic role of the citizen was to select governmental leaders and keep the powers and scope of public authority in check. On the liberal view, the. rights of citizens against the state were the focus of special emphasis. Over time, the liberal democratic notion of citizenship developed in two directions. First, there was a movement to increase the proportion of members of society who were eligible to participate as citizens--especially through extending the right of suffrage--and to ensure the basic political equality of all. Second, there was a broadening of the legitimate activities of government and a use of governmental power to redress imbalances in social and economic life. Political citizenship became an instrument through which groups and classes with sufficient numbers of votes could use the state power to enhance their social and economic well-being. Within the general liberal view of democratic citizenship, tensions have developed over the degree to which government can and should be used as an instrument for promoting happiness and well-being. Political philosopher Martin Diamond has categorized two views of democracy as follows. On the one hand, there is the "libertarian" perspective that stresses the private pursuit of happiness and emphasizes the necessity for restraint on government and protection of individual liberties. On the other hand, there is the "majoritarian" view that emphasizes the "task of the government to uplift and aid the common man against the malefactors of great wealth." The tensions between these two views are very evident today. Taxpayer revolts and calls for smaller government and less government regulation clash with demands for greater government involvement in the economic marketplace and the social sphere.

单选题When her purse fell overboard, Sally lost her ______, keys, wallet, and cigarettes.

单选题Questions 21—23 are based on the passage about malls in the US. You now have 15 seconds to read Questions 21—23.

单选题Both a person's heredity and his {{U}}environment{{/U}} help to shape his character.

单选题Most people accept income as a fair tax since ______.

单选题He was ______ to take over the duties and responsibilities of his father from an early age.

单选题The impact of Thoreau' s On the Duty of Civil Disobedience might not have been so far reaching ______ for Elizabeth Peabody, who dared to publish the controversial essay.