PALO ALTO, California------"Switching off the television may help prevent c
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PALO ALTO, California------"Switchingoff the television may help prevent children from getting fatter------ even ifthey do not change their diet or increase the amount they exercise," USresearchers said last week.
Astudy of 192 third and fourth graders, generally aged eight and nine, foundthat children who cut the number of hours spent watching television gainednearly two pounds(0.9kg) less over a one-year period than those who did notchange their television diet.
"Thefindings are important because they show that weight loss can only be theresult of a reduction in television viewing and not any other activity,"said Thomas Robinson, a pediatrician(儿科专家) at Stanford University.
"Americanchildren spend an average of more than four hours per day watching televisionand videos or playing video games, and rates of childhood being very fat havedoubled over the past 20 years," Robinson said.
Inthe study, presented this week to the Pediatric Academic Societies‘ annualmeeting in San Francisco, the researchers persuaded about 100 of the studentsto reduce their television viewing by one-quarter to one-third.
Childrenwatching fewer hours of television showed a significantly smaller increase inwaist size and had less body fat than other students who continued their normaltelevision viewing, even though neither group ate a special diet or took partin any extra exercise.
"Oneexplanation for the weight loss could be the children unstuck to the televisionmay simply have been moving around more and burning off calories,"Robinson said.
"Anotherreason might be due to eating fewer meals in front of the television. Somestudies have suggested that eating in front of the TV encourages people to eatmore," Robinson said.
1.The author tries to tell us in the firsttwo paragraphs that ________.
| A．children will get fatter if they eat too much |
| B．children will get thinner if they eat less |
| C．children will get fatter if they spend less time watching TV |
| D．children will get fatter if they spend more time watching TV |
2.According to the passage, the timeAmerican children usually spend on watching TV_____.
| A．is more than four hours a day | B．is less than four hours a day |
| C．doubled in the last twenty years | D．is more than on any other activities |
3. The time children spend on TV viewingevery day is suggested to be about ________.
| A．six hours | B．eight hours | C．three hours | D．one hour |
4.Which one of the following is right?
| A．Children usually eat fewer while watching TV. |
| B．Children usually eat more while watching TV. |
| C．Children eat the same amount of meals while watching TV. |
| D．Children usually eat nothing while watching TV. |
5.Why can watching TV increase kids’ weightaccording to the passage?
A.They usually eat more while watching TV.
B.They burn off fewer calories.
C.They change their diet while watching TV.
D. Both A and B.
试题答案
【答案】
1.D
2.A
3.C
4.B
5.C
【解析】略