In the study，presented this week to the Pediatric Academic Societies' annual meeting in San Francisco, the researchers persuaded about 100 of the students to reduce their television viewing by one quarter to one­third.

　　Children watching

　　fewer

　　hours

　　of

　　television showed a significantly smaller increase in waist size and had less body fat than other students who continue

　　their normal television viewing, even though neither group ate a special diet nor took part in any extra exercise.

　　“One explanation for the weight loss could be the children unstuck to the television may simply have been moving around and burning off calories，” Robinson said.

　　“Another reason might be due to eating fewer meals in front of the television. Some studies have suggested that eating in front of the TV encourages people to eat more，” Robinson added.

　　5. What do the first two paragraphs imply？

　　A. Children in the US are tired of watching TV.

　　B. Watching TV can help children to lose weight.

　　C. Younger children watch more TV than older ones.

　　D. More TV viewing is harmful to children's health.

　　6. In

　　average, the

　　time

　　American

　　children

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