2014
高考英语阅读理解巩固练习（42）及答案 the hole in the earth’s ozone layer (臭氧层) has until now protected antarctica from the worst effects of global warming. but scientists have warned that as the hole closes up in the next few decades, temperatures on the continent could rise by around 3 ℃ on average, with melting ice contributing to a global sea level increase o
