如何区别？

　　句型 句型特点 常用形容词 可替换句型 It +be + adj. + of sb. to do sth. 这里形容词是对人的品质、特征等的修饰、说明

　　good, kind, nice, clever, wise, foolish, silly, right, wrong, careful, careless,selfish, generous,politethoughtful

　　Sb.+be +adj.+ to do sth.

　　句型 句型特点 常用形容词 可替换句型 It +be + adj. + for sb. to do sth. 这里形容词是对动词不定式to do这件事的好坏等性质的修饰、说明 hard, good, difficult, easy, important, interesting, necessary, possible, impossible etc. Doing/ To do sth. is + adj. +for sb. It’s very silly of you to make such a mistake.

　　It’s creative of her to think of the idea.

　　It’s impossible for you to finish the task today.

　　It’s not easy for you to be a top student in such a short time. You are silly to make such a mistake. Being/To be a top student in such a short time is not easy for you. She is creative to think of the idea. Finishing/To finish the task today is impossible. 1. It is very kind _____ Jackie Chan to raise money for charities.

　　of 2. It is polite ______students to wave to teachers goodbye.

　　of 用 for 或 of 填空: 用 for 或 of 填空: 3. It is meaningful __________ us to help the elderly. 4. It is helpful ________ Millie to organize the charity show. 5. It is unfair __________ Daniel not to give him a chance to express his ideas. 6. It is generous ____________ Amy to donate her pocket money to Project Hope. 7. It is polite __________ Lucy to greet her teacher and classmates in the morning. for

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