“have the folly to do sth/ of doing sth”的用法值得商榷

另外，folly的这些用法在其它词典中也得到印证：　　

(1) 在英国柯林斯出版公司编著《柯林斯COBUILD高阶英汉双解学习词典》(柯克尔等译)(外语教学与研究出版社 2011年7月第1版)P1031上 folly 词条后标注 “oft  N of n/-ing，it v-link N to-inf”(笔者注：即“folly”有两种用法：一是可以接名词或v-ing形式做后置定语，但此时却不构成“have the folly of doing sth”结构；二是可以用于“it v-link+n+to do sth”句式，却没有“have the folly to do sth”结构。)　　

(2) 吕志士主编《英语惯用法大词典》(中国科学技术出版社1994年12月第1版)P805:1.folly用作名词，有两个意思，一是“愚蠢”，是不可数名词；另一个是“愚蠢的行为，愚蠢事”。是可数名词。如：

……

Jane smiled at his folly. The follies of youth are food for repentence in old age. 

2. 在“It is folly +动词不定式”的结构中，不用“a”的情况更普遍。如： It is folly to continue the investigation. It would folly to light a fire near that wood. It would be folly for you to try to lift the heavy stone.

3. 如果folly前有一个形容词修饰，则加不定冠词的情况更多一些。如：It is a sheer folly to play with fire. It is an absolute folly to talk like that in her presence. It is a great folly to bite the hand that feeds you.　　

(3)《朗文当代高级英语辞典》(英英•英汉双解)(外语教学与研究出版社2004年7月第1版)P750: it would be folly to do sth It would be sheer folly to reduce spending on health education. 

the folly of a writer who satirized the follies of aristocratic society