“It is 形容词 of sb. (not) to do” 与“It is 形容词 for sb. (not) to do”的使用

“It is 形容词 of sb. (not) to do” 与“It is 形容词 for sb. (not) to do”的使用 “It is + 形容词 + of sb. + (not) to do” 与“It is + 形容词 + for sb. + (not) to do”的使用 解读:要分清何时用of ，何时用for，主要应从以下两点来区别: (1) 两者使用的形容词不同。“It is + 形容词 + of sb. + (not) to do”用 的形容词是示人的性格品质之类的形容词，常用的有:good, kind, nice, wrong, silly, clever, careless, selfish, generous等。“It is + 形容词+ for sb. + (not) to do”里的形容词仅仅是描述事物，不是对不定式行为 者的品格进行评价，常用的有:hard, important, interesting, necessary, difficult, exciting, easy, comfortable, true, sad, certain, pleasant 等。如: It is very nice of you to help me so much. 你帮我这么多真是太好了。 It’s dangerous for children to swim in the river. 对孩子们来说在河里游泳是危险的。 (2) “It is + 形容词 + of sb. + (not) to do”这个句型可以转变成一个带 不定式作状语的句子，而“It is + 形容词 + for sb. + (not) to do”这个句 型不可以转变。如: It’s careless of Lucy to make so many mistakes in her homework. =Lucy is careless enough to make so many mistakes in her homework. Lucy真粗心，在作业中犯如此多的错误。 应用:1. 单项选择 It’s important ______ students ______ to their teachers carefully in class. A. for; listening B. for; to listen C. of; to listen D. of; listening 2.用of , for 填空 (1) It is helpful ______ Daniel to organize the party. (2) It is unfair ______ Amy not to give her a chance to express her ideas.