better known与most known

有这样一道题:

Professor White has written some short stories, but he is _____ known for his plays.

A. the best                        B. more

C. better                        D. the most

【陷阱】容易误选D。

【分析】此题首先不宜选B或D，因为 well known 的比较级和最高级通常是 better known和best known，有时也可以是 more well known 和 most well known，但通常不能是 more known 和 most known。至于是选A还是C，这就要看语境。由于句中涉及的只有 stories 和 plays 两个对象，故应选比较级。