～～2题细分---that of 用法---CDer请进-----望指教～～～～～～～～

fannybeibei

1.Once they had seen the report from the medical examiner, the investigators had no doubt that the body recovered from the river was that of the man who had attempted to escape from the state prison.

2.Of all the art-related reference and research libraries in North America, that of the Metropolitan Museum of a Art in New York City is among the largest and most complete.

请NN指教that of 到底什么时候用啊
第一题不用that 是因为body 不是dead的关系吗

fannybeibei

谢谢～

gtr

that of主要是用在两个东西不能直接比较的时候


body 不等于man, 所以死去的body最多等于某个男人的body，不能直接等于某个男人，所以用that of the man