请大家帮我翻译下高一英语下的unit17的课文(人教版的）

额，找不到课文，所以。。。
1. alone in antarctica 独自在南极...

medium-sized penguins occurring in large colonies on the Adelie coast of Antarctica.
中等体格的企鹅，出没于南极洲阿德利沿岸的大殖民地地区。
In 1985, British scientists confirmed that chemical reactions had begun to damage the ozone layer above Antarctica.
1985年，英国科学家确认，化学反应已开始损害南极上空的臭氧层。
Scientists believe that tiny ice crystals of nitric acid in Antarctica's upper atmosphere are directly involved.
科学家认为，南极上部大气圈内微小的硝酸冰晶也直接参与其中。
Their measurements showed a 40 percent reduction in ozone concentrations over Antarctica from the middle 1970's to 1984.
他们的测量表明，从20世纪70年代中期到1984年，南极上空的臭氧浓度减少了40％。
usually herbivorous land turtles having clawed elephant-like limbs; worldwide in arid area except Australia and Antarctica.
通常为陆栖的食草性龟，四肢与象的类似并有爪；广泛分布于除澳大利亚和南极洲之外的干旱地区。
legal status of the Antarctica
南极洲的法律地位
The hole in the ozone layer over Antarctica is about to start shrinking