OG2: Since 1981, when the farm depression began, the number of acres overseen by professional farm-management companies have grown from 48 million to nearly 59 million, an area that is about
(A) have grown from 48 million to nearly 59 million, an area that is about
(B) have grown from 48 million to nearly 59 million, about the size of
(C) has grown from 48 million to nearly 59 million, an area about the size of
(D) has grown from 48 million up to nearly 59 million, an area about the size of
(E) has grown from 48 million up to nearly 59 million, about
In choice C, the best answer, an area about the size of Colorado clearly describes a rough equivalence between the area of Colorado and the area overseen by the companies. In A and B, the plural verb have does not agree with the singular subject number. Choice A is also wordy, since that is can be deleted without loss of clarity. The absence of an area in B and E impairs clarity: the phrase beginning with about must modify a noun such as area that is logically equivalent to the number of acres given. In D and E up to is unidiomatic; the correct expression is from x to y. In D, the size of Colorado’s is unidiomatic, since of Colorado forms a complete possessive.
这道题我做对了，但是有个语法现象还是不太明白（以前的帖子的讨论中好像也没有个定论）：
为什么一定要有area？为什么about the size of...一定得修饰area？为什么不能直接修饰59 million？
the number 是主语
没有area
就变成 about the size of
number和size无法平行
加上area就明确了所指的对象，逻辑意思也更明确
哦？是这样啊？
如果没有area：about the size of
现在有了area：an area about the size of
an area about the size of
是，59million acres 相当于an area about the size of
不会是the number的同谓语
the number （数字）是 科罗拉多的大小吗？
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