Whatweallknowisthattheoldscientist,_______lifewashardinthepast,stil

What we all know is that the old scientist, _______ life was hard in the past, still works very hard in his eighties.A.for whomB.for himC.for whoseD.for which

A解析试题分析：这是定语从句，因为that引导的是表语从句，the old scientist still works very hard in his eighties.是主句，______life was hard in the past是定语从句，两个句子中间缺少关系词，him不能起连接的作用，故排除B；先行词是the old scientist，which不能代替人，故排除D；如果用for whose，那么从句中就缺少主语，因为for whose life是介词短语不能作主语，这里选for whom，life是从句的主语，故选A。考点：考查定语从句的用法。点评：本题较难。定语从句是英语语法中非常重要的内容，在阅读和理解过程中起着极其重要的作用。定语从句的考查关键在于定语从句的成分分析，需要考生有分析理解复杂的句子结构的能力。即学即练：They rushed over to help the man ______ car had broken down.A. whom B. that C. whose D. which解析：C。句意：那人车坏了，大家都跑过去帮忙。

感谢回答，我学习了