摘要
《列子·天瑞》里说,札国有个人,担心天要坍塌下来他将无处存身,因此愁得觉也睡不着,饭也吃不下。后人就用“札人忧天”比喻不必要的或无根据的忧虑。 臭氧这篇文章读后真让人们去“忧天”了!国人惯说“天塌下来”,看来,天是塌不下来的,但是,天上出现了伤及人类的“臭氧洞”: Scientists say a decrease in ozone and an increase in the harmful radiation willcause many more cases of skin cancer and will harm crops,animals and fish. 本文是美国之音的广播稿,从文中知道,成文的时间是1989年。但是,此文现在还在广播,究其原因,大概是本文深入浅出地向读者(听众)交代了关于臭氧的基本知识。 比如,什么是臭氧? Ozone is a three—atom form of oxygen gas. 臭氧的利弊? It is found both in the air we breathe and in the upper atmosphere.atmosphere Near theEarth,ozone in the air is a danger to life.It is a pollutant.But ozone found 10kilometers to 50 kilometers up in the atmosphere protects life on Earth. 臭氧洞及其发现的时间? The mystery involves a change in the atmosphere--a hole,or thinning.of theozone in the atmosphere over Antarctica. The trouble first
出处
《当代外语研究》
1997年第12期4-7,共4页
Contemporary Foreign Language Studies