Less TV Reduce Kids Weight

PALO AITO, California—“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 grades, generally aged eight and nine, found that children who cut the number of hours spent watching television gained nearly two pounds （0.91 kg） 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,” said Thomas Robinson, a pediatrician （兒科專家）at Stanford University.

“ American children spend an average of more than four hours per day watching television and videos or playing games, and rates of childhood being very fat have doubled over the past 20 years,” Robinson said.

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 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.

1. The author tries to tell us in the first two 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 time American 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.Which 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.

4.Why can watching TV increase kids’ weight according 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

 

【答案】

1.D

2.A

3.B

4.D

【解析】略

 

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We can achieve knowledge either actively or passively（被動(dòng)地）. We achieve it actively by direct experience, by testing and proving an idea, or by reasoning.
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C．Active learning occurs more frequently.
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[1] Teenagers who spend hours in front of the television may have a poorer diet as young adults, a new study suggests. It's not clear, researchers say, whether television itself is the reason, but it is possible that things like snacking(吃零食) in front of the TV or seeing ads for junk food influence young people's diets.

[2] The study included nearly 1,400 high school students. It showed that those who watched TV for five hours or more everyday had less-healthy diets than their students five years later. As a group, they ate fewer fruits and vegetables, but ate more fast food, snack products and fried foods.

[3] "We're not able to tell why," lead researcher Dr. Daheia J. Barr-Anderson said. "But we do have some speculations." People who spend a lot of time in front of the TV, especially teenagers, may have more snacks. It may influence their long-term diet quality. It's also possible that TV ads for fast food, sweets and snacks make teenagers eat more of those foods. TV time might also replace exercise time for some kids.

[4] The researchers found a clear relationship between TV time during high school and diet quality of the young. The heaviest TV viewers              , and those who'd watched fewer than two hours everyday had the most fruits, vegetables.

[5] According to Barr-Anderson, the findings support experts' advice that children should watch no more than two hours of television everyday. "Parents should cut the TV time," Barr-Anderson said. She advised that parents set a good example by eating right, being physically active and controlling their own TV time.

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Some children may spend much time watching TV instead of                             .

2. What does the underlined word “It” in paragraph 2 refer to? (no more than 3 words)

                                                                              

3.According to Barr-Anderson, what should parents do to set a good example for their children? (no more than 15 words)

                                                                                

4.Fill in the blank in paragraph 4 with proper words. (no more than 6 words)

                                                                               

5.What is the passage mainly about? (no more than 12 words)

                                                                               

 

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