The professor could hardly find sufficient grounds( ) his arguments in favor of the new theory.

Question

The professor could hardly find sufficient grounds( ) his arguments in favor of the new theory.
A.to be based on
B.to base on
C.which to base on
D.on which to base

【这个题 我选的是A 因为我觉着 C D 是一样的 D不就是把介词提前了么？那位大侠帮忙解答一下啊~~~~~~】

Answer 1

答案是D，为什么不选C 的原因我说简单一点吧（说多了也是废话）：

看短语：base sth on sth else. 选C的话which to base on his arguments，显而易见 base 后面直接跟了on ，宾语都掉了。。。。与短语不一致。所以错误。

选D就不一样了。on which to base his arguments，base 后面直接跟得就是 他需要的宾语。

细微的差别，平时多读读，培养语感很容易发现的。。。

Answer 2

选D.on which to base
句意: 这位教授几乎找不出充分的论据来支撑他赞同新理论的观点.

此题考查定语从句的缩略形式: on which to base his argument=on which he would base his argument (which指代sufficient grounds)
当从句的主语与主句的主语一致时,可以用不定式缩略定语从句.
因此就变成了on which to base his argument.

根据句意,on应放在关系代词which之前,构成: to base his argument on sufficient grounds. (base为及物动词)

如选C, 则成了: sufficient grounds to base on his argument. 这不合句意.因此C不正确.
同理,A和B.都是base on his argument.所以AB也不对.本回答被网友采纳