as...as与more than

木木OOO宝宝

Carbon-14 dating reveals that the megalithic monuments in Brittany are nearly 2000 years as old as any of their supposed Mediterranean predecessors.
(A) as old as any of their supposed
(B) older than any of their supposed
这个题应该选什么呢？如何判断用as...as 还是more than 呢？我觉得两个结构意思是不一样的，比如设计倍数，twice more than 和twice as many as 的意思就不同。

切尔西

这个。。。我也说不清楚了，好像这么用的比较少，或者等NN给你解释下了，呵呵

木木OOO宝宝

恩，谢谢。可是如果想用as...as表示A和B一样20岁怎么表示呢？

切尔西

                   Carbon-14 dating reveals that the megalithic monuments in Brittany are nearly 2000 years as old as any of their supposed Mediterranean predecessors.
(A) as old as any of their supposed
(B) older than any of their supposed
这个题应该选什么呢？如何判断用as...as 还是more than 呢？我觉得两个结构意思是不一样的，比如设计倍数，twice more than 和twice as many as 的意思就不同。
你的第一个问题：这个题应该选B， older than any of their supposed....
第二个问题么，就本题来说， as...as 是比较其前后的两个对象，这里是nearly 2000 years和any of their supposed Mediterranean predecessors, 显然这两个对象不能放在一起比较，如果要改可以直接说the megalithic monuments in Brittany are s old as any of their supposed Mediterranean predecessors.
而 more than 正好是将monuments 和any of their supposed Mediterranean predecessors 进行了比较，避免了上述的错误
第三点，twice as many/much as是正确的，不能用作twice more than(这个印象中是的，希望NN确认)

venus2elva

同问。同错选了B。

OG解释是说The expression as old as indicates equality of age, but the sentence indicates that the Brittany monuments predate the Mediterranean monuments by 2,000 years. In B, the best choice, older than makes this point of comparison clear.
但是如何看出来the sentence indicates that the Brittany monuments predate the Mediterranean monuments by 2,000 years的？不明白。