og 13

13.   State officials report that soaring rates of liability insurance have risen to force cutbacks in the operations of everything from local governments and school districts to day-care centers and recreational facilities.

(A) rates of liability insurance have risen to force

(B) rates of liability insurance are a force for

(C) rates for liability insurance are forcing

(D) rises in liability insurance rates are forcing（C）

(E) liability insurance rates have risen to force

In choices A and B, rates of is incorrect; when rates means “prices charged,” it should be followed by for. Also in B, are a force for does not accurately convey the meaning that the soaring rates are actually forcing cutbacks in the present. In A and E, it is redundant to say that soaring rates have risen. Similarly, the word rises makes D redundant. C, the best choice, is idiomatic and concise, and it correctly uses the progressive verb form are forcing to indicate an ongoing situation

对于:rate of 和rate for 还是不是很明白,谁有比较清楚的解释?

谢先了

rate:

1. 费用 + for

2. 比率 + of

LES的完全正确

请问NN, 从题目什么地方可以判断出 the soaring rates are actually forcing cutbacks in the present ?

In choices A and B, rates of is incorrect; when rates means “prices charged,” it should be followed by for. Also in B, are a force for does not accurately convey the meaning that the soaring rates are actually forcing cutbacks in the present. In A and E, it is redundant to say that soaring rates have risen. Similarly, the word rises makes D redundant. C, the best choice, is idiomatic and concise, and it correctly uses the progressive verb form are forcing to indicate an ongoing situation

我的问题是为什么(B) rates of liability insurance are a force for 不对，而要选 are forcing
是因为soaring暗示要用进行时吗？

billion,

yes 因為"soaring" 所以要用 progressive tense

感谢 Master LES!