一题prep里的题目(prep172里好像没有)

independence

In some species of cricket, the number of clirps per minute used by the male for attracting females rIse and fall in accordance with the surrounding temperature, and they can in fact serve as an approximate thermometer.

(A)for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve

(B)for attracting females rises and falls in accordance with the surrounding temperature, which can in fact serve

(C)in attracting females rise and fall in accordance with the surrounding temperature, in fact possibly serving

(D)to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve

(E)to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving (D)

(A)(C)主谓语的单复数不一致,不选

(B)for attracting不好,用to attract比较好

不知道E哪里不好了,请指教

谢谢

[此贴子已经被作者于2007-3-22 19:29:05编辑过]

nutliu

can最好保留

can和possibly意思有区别

independence

请问can 和 possibly 差在哪呢

Zeldaw

possibly表示可能性，can表示能够

Snevy

应该是SERVING的部分会不清楚，

让人误会是TEMPERATURE, which servess as.....