高二英语知识点：经典题型十二
2020.01.10
发布者：网上发布
23. ____ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world. (2005湖北)
A. Being separated
B. Having separated
C. Haring been separated
D. To be separated
【解析】选Cseparate是及物动词，句意为“已经分开几百万年”，因此用分词完成时的被动语态。
24. Hospital staff burst into cheers after doctors completed a 20-hour operation to have ____ one-year-old twins at the head. (2004上海)
A. isolated B. separated
C. divided D. removed
【解析】选B separate用于“把两者分开”，isolate意为“隔离”。