[originaltext] " Switching off the television may help prevent children from

游客2023-08-25  26

问题  
" Switching off the television may help prevent children from getting fatter, even if they do not change their diet or increase the amount they exercise," US researchers said last week.
    A study of 192 third and fourth graders, generally aged eight and nine, found that children who cut the number of hours spent watching television gained nearly two pounds less over a one-year period than those who did not change their television diet. The findings are important because they show that weight loss can only be the result of a reduction in television viewing and not any other activity. American children spend an average of more than four hours per day watching television and videos or playing video games, and rates of childhood being very fat have doubled over the past 20 years.
    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 one-third. Children watching fewer hours of television showed a significantly smaller increase in waist size and had less body fat than other students who continued their normal television viewing, even though neither group ate a special diet or 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 more and burning off calorics. 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.
16. What do we know about the findings of the study?
17. Why are the findings important?
18. What accounts for the findings?

选项 A、Children will get absent-minded if they play video games.
B、Children will get healthier if they change their diet.
C、Children will improve their grades if they stop watching TV.
D、Children will lose weight if they spend less time watching TV.

答案 D

解析 细节题。通过对三道题目选项的浏览,重复率较高的children与TV提示短文内容可能与小孩看电视有关。短文开篇就提到了researchers的研究结果,即“不看电视可以防止小孩长胖……”,然后介绍了研究过程和研究结果背后可能的原因,故D为正确答案。此外,这句话也是整个短文的主题句。
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