My Space and other Web sites have unleashed a potent new phenomenon of social networking in cyberspace, (1) at the same time, a growing body of evidence is suggesting that traditional social (2) 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 (3) reported last summer that obesity appeared to (4) from one person to another (5) social networks, almost like a virus or a fad. In a follow-up to that provocative research, the team has produced (6) findings about another major health (7) : smoking. In a study published last week in the New England Journal of Medicine, the team found that a person’s decision to (8) the habit is strongly affected by (9) other people in their social network quit—even pe
A. filling
B. blocking
C. fueling
D. contributing
Passage One Swine flu has infected more than a million Americans and is infecting thousands more every week even though the annual flu season is well over. That total of those who have already been infected is "just a ballpark figure," said Dr. Anne Schuchat, director of respiratory diseases at the Centers for Disease Control and Prevention, adding, "We know we’re not tracking every single one of them." Only a tiny fraction of those million cases have been tested. 66 A survey in New York City showed that almost 7 percent of those called had had flu symptoms during just three weeks in May when the flu was spreading rapidly through schools. If that percentage of the city has had it, then there have been more than 500,000 cases in the city alone. 67 The flu has now spread to many areas of the country, Dr. Schuchaf noted, and the C. D. C. has heard of outbreaks in 34 summer camps in 16 states. About 3,000 Americans have been hospitalized, and their median ag
A. The world’s eyes are on the Southern Hemisphere, which is at the beginning of its winter, when flu spreads more rapidly.
B. Swine flu doesn’t often infect people, and the rare human cases that have occurred in the past have mainly affected people who had direct contact with pigs.
C. That means difficult decisions will have to be made about whom to give it to first.
D. Of those who die, Dr. Schuchat said, about three-quarters have some underlying condition like morbid obesity, pregnancy, asthma, diabetes or immune system problems.
E. The estimate is based on testing plus telephone surveys in New York City and several other locales where the new flu has hit hard.
F. However, most of them have been mild enough that doctors recommended nothing more than rest and fluids.
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