Great as Charles Darwin was, his theory of evolution( )and is being modified by the work of scientist of our time.

Great as Charles Darwin was, his theory of evolution( )and is being modified by the work of scientist of our time.


A、

may be challenged


B、

is to challenge


C、

has been challenged


D、

is challenging


【正确答案】:C
【题目解析】:

本题考查对现在完成时的被动语态have/has been done的判断与使用。
句子前半段是as引导的让步状语从句(结构“形容词+as+主语+be动词”表示“尽管...”),主句主语为theory of evolution,and前后内容并列, and后面时态为现在进行时,且"theory of evolution进化论"与"challenge挑战"之间的逻辑关系为被动,即“进化论受到了挑战”;从句时态为一般过去时,表明“进化论受到到挑战”这一动作从过去到现在都在进行并对现在造成了影响,故主句谓语”challenge挑战“应使用现在完成时的被动语态,C选项符合题意。
句意:尽管查尔斯·达尔文很伟大,但他的进化论也受到了挑战,并被我们这个时代的科学家的研究所修改。


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