新东方补充材料297题

297

In the 1980's the rate of increase of the minority population of the United States was nearly twice as fast as the 1970's.

B. twice as fast as it was in;

C. twice what it was in;

D. two times faster than that of;

E. two times greater than.

答案是C,为什么不选B

一直对“几倍于...”的表述方法感觉很模糊，敬请各位多指教！！！

'Twice' cannot be used with descriptive adjectives, such as 'fast'.

还有一点刚刚看到的：B. twice as fast as it was in the 1970's.中

的it was in the 1970's是个句子，与名词短语the rate of 不对称,

而C中的what从句相当于名词短语,所以比较对象对等,符合.

谢谢各位，我越来越清楚了