2.Some experts        certain people are predisposed to be late and that part of the problem may come deep from the brain. (subscribe)

有些專家贊同這樣的理論，亦即有些人特別容易遲到，而問題可能部分來自大腦的深處。

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 They do it late at night when their parents are asleep. They do it in restaurants and while crossing busy streets. They do it in the classroom with their hands behind their back. They do it so much that their thumbs hurt.

  Spurred(刺激) by the unlimited texting plans offered by carriers like AT&T Mobility and Verizon Wireless, American teenagers sent and received an average of 2,272 text messages per month, according to the Nielsen Company一almost 80 messages a day.

  The phenomenon is beginning to worry physicians and psychologists. Dr. Martin Joffe, a pediatrician in Greenbrae，Calif.，recently surveyed students at two local high schools and said he found that many were routinely sending hundreds of texts every day.

  The rise in texting is too recent to have produced any conclusive data on health effects. But Sherry Turkle, a psychologist who has studied texting among teenagers in the Boston area for three years,said it might be causing a shift in the way adolescents develop.

  "Among the jobs of adolescence are to separate from your parents，and to find the peace and quiet to become the person you decide you want to be," she said. "Texting hits directly at both those jobs.”

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   B.texting can affect American teens in many ways

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只要堅持這種態(tài)度，一切都好，而且我們也就不會犯任何大錯誤。

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