2014江苏省南京市
高考英语阅读理解巩固自练(2)及答案 阅读理解 (2013•西安市标准化考练,d) up to 45 rare species of australian animals are in danger of becoming extinct within 20 years, scientists warned in a report. but hope is not lost! according to the report, the species can be saved if immediate action is taken to control their natural predators (天敌) and other threats. the threatened ani