卫生类AB级阅读理解Dangerous Sunshine
Two United Nations agencies warned on Tuesday that children are most at risk of developing skin cancers as a result of the long-term decline in the earths protective ozone layer. The agencies. the World Health Organization(WHO) and the UN Environmental Programme(UNEP)，issued the warning as they launched a global programm aimed at altering schools to the dangers of exposure to the sun.
"As ozone depletion becomes more marked， and as people around the world engage more in sun-seeking behavior， the risk of health complications from overexposure to ultra-violet radiation is becoming a substantial public health concern， ”said WHO Director-general Lee Jong-wook. By reducing the time children and adolescents are exposed to direct sunlight， he said “We can substantial]y reduce the risk of contracting skin cancers， cataracts and other conditions which might only appear much later in life.”
In its 2002 World Health Report，the WHO said around the world an average of 66，000 people died every year from melanoma or other types of skin cancer. Independent scientific research shows that every year there are between two to three million new cases of non-malignant melanoma and around 130，000 malignant- and normally fatal - new full-blown skin cancer cases.
Although most known skin cancers seemed to occur in the industrialized world， WHO radiation and environmental health specialist Mike Repachoh told a news Conference，there were many cases believed to. be unreported in poorer countries. Although people with darkerskins were less susceptible to` akin cancers， they were just as likely to contract eye cataractsas fairer-skinned populations. and people living close to the equator were even more likely to develop them.
As for the protection method， the WHO said that under the school plan， dubbed the Intersun Project， the two agencies will distribute packages showing teachers how to develop their own sun education programs， the WHO said. In a joint statement from the two agencies which also marked the International Day for the preservation of the Ozone Layer， UNEP Executive Director Klaus Toepfer said latest studies showed the protective shield was on the road to recovery. This was the result of international agreements over the decades to phase out use of various chemicals - like those used in some pesticides， refrigerators and aerosols.
"But we must remain vigilant and more needs to be done before we can say the problem is solved for good"，" said Toepfer. This included stopping illegal trade in chemicals and enforcing the agreements in developing countries. "Only then can we say the sky above our heads will be safe for our children and their children to come，" the German environment minister said.
词汇：
ozone n. 臭氧
alert vt. 向…发出普报.使普觉
depletion 耗尽(精力或资源等)
complication 并发症，并发病
ultra-violet adj.紫外(线)的n.萦外线
contract vt.患(病)，感染(恶习等)
cataract 白内障
melanoma .黑素瘤
non-malignant 非恶性的
malignant adj.恶性的
full-blown adj. 成熟的
fairer-skinned/ 肤色较浅的
pesticide 杀虫剂
aerosol 烟，雾， 烟雾剂
vigilant adj.警锡的
1.Why does the risk of developing skin cancers in children become greater and greater?
A Because they pay little attention to their skin health.
B Because they are short of physical training
C Because the earth’s protective ozone layer declines year after year
D Because the earth is getting warmer and warmer
2. How many people die from skin cancers including melanoma all over the world every year?
A an average of 66，000
B approximately 130，00
C about 196，000
D between 2，000，000 to 3，000， 000