是one…theother…还是one…another?

请看下面一道题：Her lecture was hard to follow because she kept jumping from one subject to _________.
A. other B. the other C. the others D. another

此题容易误选B。选择依据可能是one ... the other ...这一常用结构。但实际上，此题最佳答案为D。使用one ... the other ... 时，我们通常是针对两者而言的，即指“两者中的一个……另一个……”；如果所谈论的情况不是针对两者而言的，而是针对多者而言的，那么我们就不宜在 one 后使用 the other，而考虑用 another。又如(答案均选D，即选 another)：

(1) Those cakes look delicious. Could I have _________ one?
A. other B. the other C. the others D. another

(2) I have many such novels. I'll bring _________ tomorrow.
A. other B. the other C. the others D. another

(3) Saying is one thing and doing is _________.
A. other B. the other C. the others D. another

比较以下各例：

(1) Shut _________ eye, Jim.
A. another B. some other C. other D. the other
答案选D，因为人的眼睛只有两只，故用 one ... the other ... 结构。

(2) It's sometimes hard to tell one twin from _________.
A. another B. some other C. other D. the other
答案选D，twin 意为“孪生子之一”、“双胞胎之一”，即指两者之一，故用 one ... the other ... 这一结构。