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单选题The author seems to consider it to be ______ for those Swedish smokers to switch to smokeless tobacco.

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单选题Questions 9 and 10 are based on the following news. At the end of the news item, you will be given 20 seconds to answer the questions. Now listen to the news.

单选题 {{I}} Questions 7 and 8 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each of the two questions. Now listen to the news.{{/I}}

单选题During the drafting of the Declaration of Independence and the drafting of the Constitution, the issue of Negro slavery was ______.A. not raisedB. raised but voted downC. bitterly debatedD. raised but, because of strong southern opposition, was put aside for greater objective

单选题What kind of sentence is "The green breeze sleeps ferociously" ? A. A meaningless sentence. B. A well-formed sentence. C. A nongrammatical sentence. D. All of the above.

单选题Why did Bernard Foyer move to a cave?

单选题Chomsky defines ______ as the ideal user's knowledge of the rules of his language.[A] performance[B] langue[C] parole[D] competence

单选题In Britain, the day after Christmas is called A. Easter B. New Year's Day C. Boxing Day D. Thanksgiving Day

单选题______ puts forward the distinction between diachronic studies and synchronic studies,A. BloomfieldB. ChomskyC. SaussureD. Halliday

单选题Why should governments ensure the careful handling and recycling of the CFCs now in use?

单选题Howdidthisaccidenthappen?

单选题The Independence Day is ______.

单选题Growing concerns over the safety and efficacy of anti-depressant drugs prescribed to children have caught the eye of Congress and the New York state attorney general. Now they're becoming the catalyst for calls to reform the way clinical trials of all drugs are reported. Pressure is already causing some changes within the pharmaceutical industry. And it has put the US Food and Drug Administration (FDA), which approves new drugs, in the hot seat. If reforms are carried out, they could bring an unprecedented level of transparency to drug research. The solution now under consideration: a public database, or registry, of drug trials, where companies would post the results of those trials. In congressional testimony Thursday, a spokesman for the American Medical Association endorsed the registry and said it should include information on each trial's purpose and objective, its design, and the dates it begins and ends. If the trial is not completed, the registry should include an explanation. While drug companies have been eager to make public any positive results of their trials, recent revelations suggest they've balked at divulging tests when the results are not what they'd hoped to see. The furor has centered around the use Of anti-depressants on children. The industry has begun to make some moves to address the concerns about drug trials. Drug companies have agreed to set up a voluntary system of posting their drug trials on the Internet. But that seems unlikely to satisfy some members of Congress, who are expected to introduce legislation to establish a mandatory drug registry. Last week, editors of a dozen influential medical journals announced that they would begin requiring drug companies to post a drug trial in a public database prior to accepting an article about it. Doctors rely on these articles to make treatment choices. The editors hope that the registry will force unfavorable drug studies, before kept secret, into the open. Medical journals already had been tightening up on the authorship of their articles, insisting that authors declare if they had any conflicts of interest, such as any financial or other ties to the drug company, says Daniel Callahan, a director at the Hastings Center, a nonprofit bioethics research institute in Garrison, N.Y. Information from previously undisclosed clinical trials could lower prices, reduce the number of badly designed trials, and help doctors considering the use of a drug for a non-approved purpose to know why it hasn't been approved for that use. Antidepressant drugs "have some serious side effects ... that seem to be much more common than people realize ... much more common than you might think from seeing drug ads and from reports on drug studies," says Joel Gurin, executive vice president of Consumer Reports. His magazine just finished a survey of readers showing a "dramatic shift from talk therapy to drug therapy for mental health problems" during the past decade. In 1995, less than half of people getting mental health treatment--40 percent--got drug therapy. Today 68 percent receive drug treatment, Mr. Gurin says. Some studies coming to light show that antidepressants work no better than placebos. Even better than merely registering drug trials, Caplan (director of the Center for Bioethics at the University of Pennsylvania in Philadelphia) suggests, would be to require that a new drug not only be "safe and do what it's supposed to do", but that it do it as well or better than other drugs already on the market. That, he says, would help push research into new areas and save money.

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单选题Cold and hot are called ______ antonyms. A. complementary B. converse C. reversal D. gradable

单选题Roger Rosenblatt's book Black Fiction, in attempting to apply literary rather than sociopolitical criteria to its subject, successfully alters the approach taken by most previous studies. As Rosenblatt notes, criticism of Black writing has often served as a pretext for expounding on Black history. Addison Gayle's recent work, for example, judges the value of Black fiction by overtly political standards, rating each work according to the notions of Black identity which it introduces. Although fiction assuredly springs from political circumstances, its authors react to those circumstances in ways other than ideological, and talking about novels and stories primarily as instruments of ideology outwits much of the fictional enterprise. Rosenblatt's literary analysis discloses affinities and connections among works of Black fiction which solely political studies have overlooked or ignored. Writing acceptable criticism of Black fiction, however, presupposes giving satisfactory answers to a number of questions. First of all, is there a sufficient reason, other than the racial identity to the authors, to group together works by Black authors? Second. how does Black fiction make itself distinct from other modern fiction with which it is largely contemporaneous? Rosenblatt shows that Black fiction constitutes a distinct body of writing that has an identifiable. coherent literary tradition. Looking at novels written by Blacks over the last eighty years, he discovers recurring concerns and designs independent of chronology. These structures are related to the themes, and they spring, not surprisingly, from the central fact that the Black characters in these novels exist in a predominantly White culture, whether they try to conform to that culture or rebel against it. Black Fiction does leave some aesthetic questions open. Rosenblatt's theme-based analysis permits considerable objectivity, he even explicitly states that it is not his intention to judge the merit of the various works, yet his reluctance seems misplaced, especially since an attempt to appraise might have led to interesting results. For instance, some of the novels appear to be structurally diffuse. Is this a defect, or are the authors working out of, or trying to forge, a different kind of aesthetic? In addition, the style of some Black novels, like Jean Tommer's Cane, verges on expressionism or surrealism; does this technique provide a counterpoint to the prevalent theme that portrays the fate against which Black heroes are. pitted, a theme usually conveyed by more naturalistic modes of expression? In spite of such omissions, what Rosenblatt does include in his discussion makes for an astute and worthwhile study. Black Fiction surveys a wide variety of novels, bringing to our attention in the process some fascinating and little-known works like James Weldon Johnson's Autobiography of an Ex-colored Man. Its argument is tightly constructed, and its forthright, lucid style exemplifies levelheaded and penetrating criticism.

单选题The last but one paragraph aims to ______.

单选题If we study language as it exists at a particular point in time, it is ______.A) lexical morphologyB) linguistic atlasC) linguistic competenceD) synchronic study