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 twice faster than that of
三个选项我辨不清,
白勇的讲解是说B中增长率和it was 不并列,D中that of无指代对象,可我想不通,除了我觉得好像fast不与rate搭配外。
如果有空的可否帮我看一下,谢拉!
虽然看了CD上牛牛们的比较结构分析,还是有点云里雾里,没救了!
B中twice as fast as对比的应该是动作,短语前部是个名词短语,后部是个带谓语的主谓动词结构,所以名次短语与动词结构不平行;
D中应该说是that的指代对象模糊,因为前部有三个of结构,把that内容补全可以是:than the rate of 1980's;than the rate of increase of 1980's 或 than the rate of increase of the minority population of the 1970's,而这三个结构与句首的in the 1980's结构都无法形成结构的平行,所以,that of的确缺乏合适的指代对象,这个句子如果将of改成in,可能会比较合适,与in the 1980's 有对应。