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题库 / Prep2008E2-SC-234
The coyote is one of several recent ecological success stories: along with the white-tailed deer, the moose, and other species that are enlarging their natural domains, they have established themselves as supreme adapters in an era when the capability to adjust to the environmental changes wrought by human beings has created a whole new class of dominant large mammals.
they have established themselves as supreme adapters in an era when the capability
they have established themselves as being supreme adapters in an era when being able
it has established itself as a supreme adapter in an era when to be able
it has established itself as being a supreme adapter in an era when its ability
it has established itself as a supreme adapter in an era when the ability
1、5个答案中最明显的不同是首尾的不同！along with A,B and C这个只是状语从句，主谓一致还是看主句的主体。首先，我们该判断是“it”还是“they”？这要求我们理解整句话的意思。“The coyote is one of several recent ecological success stories: along with the white-tailed deer, the moose, and other species that are enlarging their natural domains”这句话想说的是郊狼是个成功的案例，这个成功的案例是：“it has established itself as a supreme adapter in an era when the ability...”（中文翻译：“it”它，郊狼是一种适应能力很强的物种。）所以答案只能从C/D/E里面寻找！
2、在看C/D/E的句尾,区别是“ability”&“be able to”!根据句子的完整性原则，答案只能是：the ability has created a whole new class of dominant large mammals.所以排除答案C。to be able表示的是将来，逻辑错误。并且when从句无主语了，注意后面有has created，需要一个主语来发起这个动作
3、the ability强调的是能力本身，而its ability强调郊狼的这种能力。个人觉得，E选项的the ability没有错，但是its ability更好，选D！
但是D比E多了being，being显得很多余！
所以，只有根据优先性原则，说话啰嗦是重罪!故选E！
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