After several years of rapid growth, the health care company became one of the largest health care providers in the metropolitan area, while it then proved unable to handle the increase in business, falling months behind in its payment to doctors and hospitals.


while it then proved unable to handle the increase in business, falling months behind in its payment to

while it then proved unable to handle the increase in business and fell months behind in its payment to

but then it proved unable to handle the increase in business, falling months behind in its paying

but then proving unable to handle the increase in business, falling months behind in paying

but then proved unable to handle the increase in business, falling months behind in paying

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考题讲解

题目分析：
本题难度相对较大，尤其是对prove的用法，需要十分关注。

选项分析：

A选项：很多同学可能会认为这里的prove最好是被动语态，即，公司被证明如何如何。但实际上，prove还有自己的系动词用法，这里附上一个英英解释：
If something proves to be true or to have a particular quality, it becomes clear after a period of time that it is true or has that quality.
因此，这里的prove是完全没有问题的。本选项的错误是名词payment需改为ing短语paying，这点考查了名词和ing的区别。用之于本题，显然地，句子中说公司拖欠了“支付医生和医院”的费用，也就是说，“支付”这个事件必然没有时间终止点（还没支付完嘛），应用ing短语。

B选项：名词payment需改为ing短语paying错误同选项(A)。

C选项：代词its是赘余的。只要说在“公司在支付医生和医院费用方面落后”即可以表示选项所呈现的语意了，而不必说“公司在公司支付医生和医院的费用方面落后”。

D选项：如果用ing短语 then proving unable to handle the increase in business，则此时的but只能是介词而不是连词了（连词身后肯定是连接句子，只有介词身后才能用名词短语）。当but是介词是，它的意思是“除了...”。在本选项中，the health care company became one of the largest health care providers in the metropolitan area和it proved unable to handle the increase in business之间应是“转折”关系，而非“除了”关系。

E选项：Correct. 本选项在语法和逻辑上都是正确的。

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Prep2008E1-SC
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