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  3. MySpace and other Web sites have unleashed a potent new phenomenon of social networking in cyberspace ,【B1】______at the same tim

MySpace and other Web sites have unleashed a potent new phenomenon of social networking in cyberspace ,【B1】______at the same tim

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问题     MySpace and other Web sites have unleashed a potent new phenomenon of social networking in cyberspace ,【B1】______at the same time, a growing body of evidence is suggesting that traditional social【B2】______play a surprisingly powerful and under-recognized role in influencing how people behave.
    The latest research comes from Dr. Nicholas A. Christakis, at the Harvard Medical School, and Dr. James H. Fowler, at the University of California at San Diego. The【B3】______reported last summer that obesity appeared to【B4】______from one person to another【B5】______social networks, almost like a virus or a fad. In a follow-up to that provocative research, the team has produced【B6】______findings about another major health【B7】______; smoking. In a study published last week in the New England Journal of Medicine, the team found that a person’s decision to【B8】______the habit is strongly affected by【B9】______other people in their social network quit — even people they do not know. And, surprisingly, entire networks of smokers appear to quit virtually【B10】______
    For【B11】______of their studies, they【B12】______of detailed records kept between 1971 and 2003 about 5,124 people who participated in the landmark Framingham Heart Study. Because many of the subjects had ties to the Boston suburb of Framingham, many of the participants were【B13】______somehow—through spouses, neighbors, friends, co-workers—enabling the researchers to study a network that【B14】______12,067 people.
    Taken together, these studies are【B15】______a growing recognition that many behaviors are【B16】______by social networks in【B17】______that have not been fully understood. And【B18】______may be possible, the researchers say, to harness the power of these networks for many【B19】______, such as encouraging safe sex, getting more people to exercise or even【B20】______crime.
【B1】
选项 A、so
B、but
C、as
D、although
答案B
解析 本题要求考生判断空格处应填入什么连词，使前后逻辑关系连贯。空白处上文指出，网站揭示新的网络交际现象phenomenon of social networking，下面一句话则是以at the sametime为标志指出越来越多证据表明传统社交圈落traditional social networking对行为的影响作用，据此可以判断，本文第一段涉及“网络交际”和“传统交际”的对比，提及“网络交际”是在引入话题，“传统交际”才是后文论述的要点。因此空白处前后在逻辑上是转折关系，应选择but，意为“尽管诸多网站在公布网络交际的有利现象，但与此同时传统交际圈对行为的影响日益得到证实”。因此选项[B]正确。
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