英语听力精选进阶版 13756

Sight problems for students in Asia

Summary

8 May 2012

Scientists say there's been a massive rise in levels of short sightedness among school leavers in Asia. Researchers writing in the journal, The Lancet, say that almost 90% of young adults are suffering from myopia.

Reporter:

Matt McGrath

Report

The strong emphasis on educational achievement in China, Japan and other parts of South-East Asia may be coming at a heavy price. Researchers say that hard work at school plus the lack of exposure to outdoor light is damaging the eyes of almost 9 out of 10 students - with 1 in 5 at serious risk of visual impairment and blindness.

The scientists say that young people need up to 3 hours a day of outdoor light - but many infants are also missing out as they nap during the middle of the day. Dr. Ian Morgan is the lead author of the study:

I think what's happened in South-East Asia is we've got a double whammy. We've got the massive educational pressures and we've got the construction of a child's day in a way that really minimises the amount of time they spend outside in bright light.

The scientists say that genetic¹ factors, long thought to play a big role in short sightedness, are not as important as the environment. They point to Singapore as a place with several distinct ethnic² groups, all of whom are now suffering high levels of myopia.

The authors suggest that mandatory³ time outdoors should be considered by educational authorities across South-East Asia as a way of dealing⁴ with the problem.

1 genetic   

adj.遗传的，遗传学的

参考例句：

• It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
• Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。

2 ethnic   

adj.人种的，种族的，异教徒的

参考例句：

• This music would sound more ethnic if you played it in steel drums.如果你用钢鼓演奏，这首乐曲将更具民族特色。
• The plan is likely only to aggravate ethnic frictions.这一方案很有可能只会加剧种族冲突。

3 mandatory   

adj.命令的；强制的；义务的；n.受托者

参考例句：

• It's mandatory to pay taxes.缴税是义务性的。
• There is no mandatory paid annual leave in the U.S.美国没有强制带薪年假。

4 dealing   

n.经商方法，待人态度

参考例句：

• This store has an excellent reputation for fair dealing.该商店因买卖公道而享有极高的声誉。
• His fair dealing earned our confidence.他的诚实的行为获得我们的信任。