单选题Tom has been a vegetarian ______ principle for years.A. inB. onC. forD. by

单选题{{I}}Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now listen to the conversation{{/I}}

单选题Great as Russell was, many of his ideas ______ today and are being modified by the work of philosophers of our time.[A] are to challenge[B] may be challenged[C] have been challenged[D] ale challenging

单选题 The horse and carriage are things of the past. But love and marriage are still with us and still closely interrelated. Most American marriages, particularly first marriages{{U}} (31) {{/U}}young couples are the result of{{U}} (32) {{/U}}attraction and affection{{U}} (33) {{/U}}than practical considerations. In the United States, parents do not arrange marriages for their children. Teenagers begin{{U}} (34) {{/U}}in high school and usually find mates through their own{{U}} (35) {{/U}}and social contacts. Though young people feel free to choose their friends from{{U}} (36) {{/U}}groups, most choose a mate of similar background. This is due in part to{{U}} (37) {{/U}}guidance. Parents cannot select spouses for their children, but they can usually influence choices by{{U}} (38) {{/U}}disapproval of someone they consider unsuitable. {{U}} (39) {{/U}}, marriages between members of different groups ( interclass, interfaith, and interracial marriages) are increasing, probably because of the greater{{U}} (40) {{/U}}of today's youth and the fact that they are restricted by{{U}} (41) {{/U}}prejudices than their parents. Many young people leave their home towns to attend college,{{U}} (42) {{/U}}in the armed forces,{{U}} (43) {{/U}}pursue a career in a bigger city.{{U}} (44) {{/U}}away from home and family, they are more{{U}} (45) {{/U}}to date and marry outside their own social group. In mobile American society, interclass marriages are neither{{U}} (46) {{/U}}nor shocking. Interfaith marriages are{{U}} (47) {{/U}}the rise particularly between Protestants and Catholics.{{U}} (48) {{/U}}interracial marriage is still very uncommon. It can be difficult for interracial couples to find a place to live, maintain friendships, and{{U}} (49) {{/U}}a family. Marriages between people of different national{{U}} (50) {{/U}}(but the same race and religion) have been commonplace here since colonial times.

单选题The traffic police stopped three trucks heavily _______ merchandise that looked ______ grain bags.A. that were loading.., likeB. loaded with.., likeC. to load with.., forD. loaded with.., for

单选题 Questions 26 to 28 are based on the following news. At the end of the news item, you will be given 15 seconds to answer the questions. Now listen to the news.

单选题With great efforts of the peace-loving people all over the world, Iraq ______ the war.A. survived fromB. survived inC. survivedD. survived to

单选题In such a(an) ______ competition, not few businessmen went bankruptcy.[A] intense[B] tense[C] intensive[D] extensive

单选题______, he should be punished if he goes against the law.

单选题In the following description about the critics of the new way of life, what is not true ?

单选题It was not the first time she ______ in the exam. I think it"s high time we ______ the truth to our headteacher.

单选题Questions 26 and 27 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.

单选题By saying that the U.S. "was now able to take its place among the arbiters of the world' s destinies" (the second sentence in paragraph 1), the author means that the U.S. ______.

单选题Despite the fact that a wide range of reading materials was specially written or______for language learning purposes, there is yet no comprehensive systematic program for the reading skills.A. adaptedB. acknowledgedC. assembledD. appointed

单选题The small shop owner often welcome nearby competition to ______ business.

单选题Mary could be a very attractive girl but she______about her clothes.A. cares littleB. cared littleC. had cared littleD. would care little

单选题Some scientists are thinking twice about doing or reporting certain research, reacting to political and social controversy in addition to legal restrictions. "It appears that controversy shapes what scientists choose to study and how they choose to study it, and we need to look a little bit more closely at the effects it might, be having," said Joanna Kempner, a researcher at the University of Michigan. Kempner and coauthors from Brown University and the University of Pennsylvania conducted in-depth interviews with 41 scientists engaged in a variety of studies. They found that half felt con-strained by formal limits, but even more said they were affected by informal or unspoken rules on what and how studies can be done. Their findings are reported in Thursday's issue of the journal Science, in a paper entitled "Forbidden Knowledge." Formal limits include such things as the ban on federal funding for most research on embryonic stem cells and restrictions on research involving humans. In many cases, too, scientific journals have their own rules, such as refusing to publish material they think might be detrimental to national security. But there also are fears about the ire of interest groups, such as opponents of animal testing, or about how a project would be perceived by the public. While formal and informal restrictions on re-search are not unusual, Deborah G. Johnson of the University of Virginia said they are not necessarily all bad. "On the one hand, you want a profession to have norms and to have some standards and some self-regulation. On the other hand, you don't want there to be an environment of fear of repercussions if they do something which they think is legitimate," said Johnson, who has studied similar issues but was not part of Kempner's group. One researcher, commenting on avoiding controversial work, told Kempner's team: "I would like to lunatic-proof my life as much as possible." Militant animal rights groups were a concern for many, who worded about organizations that have invaded laboratories to set animals loose and destroy research. Kempner recalled one of her interviews. "All of a sudden he said, 'How do I know you're not from an animal rights organization collecting information to storm the place?'" Sometimes commercial interests can get in the way of research, Kempner added, saying there are cases when the pharmaceutical industry will ask a researcher not to publish a particular finding.