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voa慢速英语讲解附字幕:美国年轻人媒体使用量增加
发表时间:内容来源:
For Youths in US, a Jump in Media Use
This is the VOA
American children and teenagers have increased their use of entertainment media by more than one hour a day in the last five years. On an average day they now spend seven and a half hours using media.
These are the findings of a new survey. It included devices like TVs, computers, mobile phones and MP3 players, but also media like books and magazines. It did not count media use for school.
Vicky Rideout at the Kaiser Family Foundation, a health research group, wrote the report. She was surprised that kids could fit even more media time into their day.
She found that they spent ten hours and forty-five minutes if you counted each device individually. But children multi-task a lot, and Vicky Rideout says this is not necessarily a good thing.
VICKY RIDEOUT: &People who study the brain will tell you that you can't actually multi-task in that way. You're really switching back and forth sequentially from different tasks, just doing it rapidly, and that you don't really do either task as well as you would do them if you did them one at a time.&
The study suggests a link between heavy media use and lower performance in school. About one-fourth of those who used media the least reported that their grades were mostly average or below. But that was true of half the heavy media users.
So where are the parents? Children who had any rule limiting the use of any kind of media were exposed to an average of about three hours less media a day. But only one-third of children had to follow any rules.
Girls spent more time than boys on social networking sites, listening to music and reading. Boys spent more time on video games -- an average of forty-eight minutes more a day than girls.
VICKY RIDEOUT: &It looks like the girls just sort of lose interest in the games and they drop off and start doing other things, whereas the boys' interest remains strong.&
Some other findings: Time spent reading books has not dropped in the last five years. But time with newspapers and magazines has, though some reading now takes place online.
Blacks and Hispanics use media over four hours more a day than other groups. And for all children, media use appears to reach its highest point between the ages of eleven and fourteen. Vicky Rideout will try to explain these findings in future research.
The report is based on more than two thousand students ages eight to eighteen. They took a written survey in class through May of last year.
And that's the VOA
, written by Mario Ritter. How much media use do you think is enough for children? Post your comments at com, and you can find transpts and captioned videos of our reports. I'm Mario Ritter.
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VOA慢速讲解附字幕：疫苗短缺威胁流感预防
来源：　 10:17:27　【】　
　　参考翻译
　　H1N1流感持续传播。目前该病毒在全球北部活动，但是专家认为该病毒已经成为所有国家的重要流感病毒。
　　感染H1N1病毒的具体人数还不确定。H1N1，俗称猪流感，4月份首次在墨西哥报道。各个国家没有要求检测并且没有个人病例报道。11月份初，世界卫生组织报道了将近50万的确诊病例。
　　世界卫生组织驻美国和西太平洋办事处报道了确诊病例中的2/3。该办事处指出全世界6000多人死于H1N1.
　　世界卫生组织特约顾问Keiji Fukuda 上周指出H1N1病毒以季节流感这样的形式继续传播。大多数人并非是通过服用抗病毒药品好转的。
　　H1N1有不同的地方。在很多国家的夏季，H1N1保持着非常高的水平。H1N1和季节性流感不同的是在严重病例和死亡人数上年轻人占大部分。
　　在美国，疑似病例在流感季节占多数。疾病防御控制中心的专家指出医院治疗疑似H1N1的对象中最常见的对象是在0到4岁大的孩子.
　　全球的卫生组织担忧疫苗的生产。富国承诺向贫困国捐赠该国10%的H1N1疫苗。但是全球都处于疫苗短缺状态。
　　传统生产流感疫苗的方法是在鸡蛋中培育病毒。国家卫生研究院Anthony Fauci指出疫苗短缺是生物学的问题。Anthony Fauci指出生产疫苗的公司在病毒不能很好生长的状态下不能生产数量更多的疫苗。
　　沙特阿拉伯政府在准备麦加朝圣，今年的麦加朝圣开始于11月份的最后一周。麦加朝圣把从160个国家的三百万穆斯林信徒聚集到圣城麦加。
　　疾病专家担心H1N1容易在人群中传播。沙特有给健康工人注射疫苗的活动。他们也说服朝圣者的国家给这些来参加朝拜的穆斯林信徒注射疫苗。同时他们也不建议儿童，孕妇和其它容易感染的人群参加。&&&2&&& 　　推荐：
　　　　　
　　　　　
文章责编：guofengru&　看了本文的网友还看了
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