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  3. Ever heard the one about the doctor who gave his patient six months to live? When the man couldn’t pay his bill, the doctor gave

Ever heard the one about the doctor who gave his patient six months to live? When the man couldn’t pay his bill, the doctor gave

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问题     Ever heard the one about the doctor who gave his patient six months to live? When the man couldn’t pay his bill, the doctor gave him another six months.
    Go ahead, laugh. It’s strong medicine, researchers are learning. Even the physical act is good for you, says William Fry, pioneer in laughter research. It increases blood flow and contracts abdominal (腹部 的) muscles. A hundred loud and deep laughs is equivalent to a very active exercise of ten minutes on a rowing machine, according to Frv.
    But the benefits go beyond an exercise. The most astonishing evidence of laughter’s power comes from a 1997 study of 48 heart-attack patients. Half of them watched funny shows for 30 minutes even-day: the rest served as controls. After a year, ten patients in the control group had suffered repeat heart attacks, compared with only two in the group that watched the shows.
    Can a good laugh help patients get well? In a landmark experiment at the University of California at Los Angeles, called Rx Laughter, scientists plan to test the effect of laughter in children with serious illnesses, including cancer. Early results suggest that humorous videos help kids handle uncomfortable or painful procedures.
    Justin Black, 13 years old, already knows that. He was in considerable pain when he woke up from surgery — until Bill Marx, a volunteer (志愿者) for Rx Laughter, appeared at his bedside. Marx told jokes, made faces and pranced (欣喜地跳跃) around the hospital room. "Having something to laugh at took my mind off the pain," says Justin. "When you’re laughing, you can’t help but feel better."
What is this passage mainly about?
选项 A、The benefits that laughter can bring to people.
B、A landmark experiment that is called Rx Laughter.
C、How Justin Black felt when a volunteer appeared in the hospital room.
D、Why Bill Marx became a member of the experiment team to test the effect of laughter.
答案A
解析 本题为主旨题。问“这篇文章的中心意思是什么?”。选项A．The benefits thatlaughter can bring to people．与文章中讨论的主题相关，为正确答案。选项B．A landmarkexperiment that is called Rx Laughter．只是文章中提到的某个试验，不能代替文章主题。选项C．How Justin Black felt when a volunteer appeared in the hospital room．则只是试验中的一个案；选项D．Why Bill Marx became a member of the experiment team to test the effect of laughter．说明一个人成为该试验团队成员的事情。上述三个选项均为文章主题服务，但不是主题。
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