2 . For many adolescents, “screen time” is almost a full-time job that could lead to obesity, diabetes and other health issues, a Canadian researcher says.
Adolescents now spend an average of six hours a day in front of some type of screen, whether it’s a television or computer screen or one of the many portable devices now popular with young people, studies done by Dr. Ian Michael Janssen show. “They spend more hours daily in front of a screen than they do in a classroom in a given year,” said Janssen, a researcher at Queen’s University in Kingston, Canada
. The result is a rise in obesity rates among adolescents. Unfortunately, fixing the problem isn’t as easy as simply cutting down screen time, Janssen cautions. “Decreasing screen time will not automatically increase physical activity levels,” said Janssen, Some active kids also spend a lot of time in front of television and computer screens, and some kids who have low screen times also have low levels of physical activity, he points out.
As well, screen time is not necessarily bad, Janssen said. “The tricky part is that children today need to be using computers,” he said. Computers are required for schoolwork, and technological skills are important for future job prospects. The quality of screen time matters too, along with the quantity---consider the negative health messages found in food advertising during children’s shows, he said. Ideally, children should aim for no more than two hours of recreational screen time a day.
Janssen’s real worry about the rise in childhood obesity rates is not that there are now rare cases of type diabetes in kids, where once there were none, but the health problems these children are likely to face in the future as adults, including high blood pressure, high cholesterol and cardiovascular disease.
1. Which one doesn’t belong to “screen time” according to the passage?
| A．Watching TV. | B．Surfing the Internet. |
| C．Seeing a film on an MP4. | D．Making a telephone call. |
2. In Janssen’s opinion, kids had better
to keep healthy.
| A．lose weight. | B．decrease screen time |
| C．take physical activities | D．go on a diet |
3. What’s the researcher’s attitude towards “screen time of adolescents" ?
| A．Concerned. | B．Passive. |
| C．Positive. | D．Frightened. |
4. We can learn from the passage that
.
| A．many of the people having full-time jobs suffer from obesity and diabetes. |
| B．decreasing screen time can’t really solve the problem |
| C．children today most use computers to finish their school work |
| D．a new type of obesity in kids becomes Janssen’s real worry |
