标题: 一道语法题求指教 [打印本页] 作者: sfyy 时间: 2012-5-22 22:33 标题: 一道语法题求指教 题目： In his research paper, Dr. Frosh, medical director of the Payne Whitney Clinic, distinguishes [mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis.] 画线部分为[]中的部分，
A. mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis （即原句） C. between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis.
答案：C
请问A选项中without their being 是错的吗？我记得动名词有个复合结构，介词+物主代词+动名词，这里为什么错呢？ C选项中将distinguish...from...换成了distinguish between...and... 这两个短语可以互相替代吗？我觉得distinguish from好像更侧重前者，而distinguish between就两者侧重程度相同了。
谢谢！作者: godiva11 时间: 2012-11-15 11:33
我看到有人对distinguish between...and ... 和distinguish ...from...的解释是： 从语法上讲distinguish A from B 和 distinguish between A and B 是都对的 但是一般distinguish A from B 这个A 和 B要是完全对立的两个东西；而这里mood swings和genuine manic-depressive psychosis都是两种情绪，并没有完全对立。 而且，一种说法就是ETS更加倾向于distinguish between A and B