【正确答案】 C

【答案解析】[听力原文] The strong emphasis on educational achievement in South East-Asia may be coming at a heavy price. Researchers sag that hard work at school plus the lack of exposure to outdoor light is damaging the eyes of almost nine out of ten students—with one in five at serious risk of visual impairment and blindness. The scientists say that young people need up to three hours a day of outdoor light, but many infants are also missing out as they nap during lunch time. The scientists say that genetic factors, long thought to play a big role in shortsightedness, are not as important as the environment. They point to Singapore as a place with several distinct ethnic groups, all of whom are now suffering high levels of shortsightedness. The authors suggest that essential time outdoors should be considered by educational authorities across South-East Asia as a way of dealing with the problem. What accounts for the poor eyesight for many South East-Asian students? 新闻开头提到，过分强调学习可能会令东南亚国家付出代价，接着指出，研究人员表示，学校的沉重课业负担加上缺乏接触室外光线的机会，对90%学生的眼睛造成了损害——其中五分之一处于视力严重减弱和失明的风险之中，由此可知，沉重的学习负担是导致东南亚学生视力状况糟糕的原因，故选C。

【正确答案】 C

【答案解析】[听力原文] How long do the young people need to be exposed to outdoor light each day? 新闻中提到The scientists say that young people need up to three hours a day of outdoor light，该句间接引用了科学家的话，指出年轻人每天应该至少接触三个小时的户外光线，故选C。

【正确答案】 C

【答案解析】[听力原文] What is the main idea of the news? 该新闻大意为东南亚地区学生由于课业负担压力较大，导致缺少户外活动时间，因而导致大部分学生患有近视或者其他眼疾。新闻开头提到东南亚地区国家要为此付出代价，结尾处又呼吁相关国家教育部门要出台政策保证学生的户外活动时间，因而可以推断该新闻的主旨是应该增加东南亚学生待在户外的时间，故选C。