以下是引用LES在2004-10-12 15:52:00的发言:语法上是没有错的,都成立。 不过逻辑上有问题,两者的区别是限定性修饰和非限定性修饰,请参考OG141关于两者在逻辑意义上的区别。 141. Unlike transplants between identical twins, whose genetic endowment is the same, all patients receiving hearts or other organs must take antirejection drugs for the rest of their lives. (A) Unlike transplants between identical twins, whose genetic endowment is the same (B) Besides transplants involving identical twins with the same genetic endowment (C) Unless the transplant involves identical twins who have the same genetic endowment (D) Aside from a transplant between identical twins with the same genetic endowment (E) Other than transplants between identical twins, whose genetic endowment is the same In A and B, the phrases beginning Unlike... and Besides... modify patients, the subject of the main clause; thus A absurdly states that Unlike transplants ..., patients... must take ... drugs, and B that all patients except for transplants... must take ... drugs. In B and D the expression identical twins with the same genetic endowment wrongly suggests that only some identical twin pairs are genetically identical. In E, the construction Other than transplants..., all patients ... must take... drugs illogically suggests, as in B, that some patients are transplants. Choice C, the best answer, solves these problems by using a clause introduced by Unless to describe the exception to the rule and a nonrestrictive clause beginning with who to describe the characteristic attributed to all identical twins. 也没发现跟这道题有什么关系阿? |