1)for sb. 常用于表示事物的特征特点，表示客观形式的形容词，如easy, hard, difficult, interesting, impossible等：
Its very hard for him to study two languages. 对他来说学两门外语是很难的。
2)of sb的句型一般用表示人物的性格，品德，表示主观感情或态度的形容词，如good, kind, nice, clever, foolish, right。
Its very nice of you to help me. 你来帮助我，你真是太好了。
for 与of 的辨别方法：
用介词后面的代词作主语，用介词前边的形容词作表语，造个句子。如果道理上通顺用of，不通则用for。如：
You are nice. 。
He is hard.
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a 1a-2d课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a 1b课本听力素材（mp3）
人教版英语八下Unit 9《Have you ever been to a museum》（Section A 3a）课文朗读
2014人教新目标英语八下unit 10《I’ve had this bike for three years》课件4
2014人教新目标英语八下unit 1《What’s the matter》section b 1b课本听力素材（mp3）
2014人教新目标英语八下unit 1《What’s the matter》period 4课件
人教版英语八下Unit 9《Have you ever been to a museum》（Section A 2a）课文朗读
2014人教新目标英语八下unit 1《What’s the matter》section a 3a-4c（含grammar focus）课件
2014人教新目标英语八下unit 1《What’s the matter》period 2课件
人教版英语八下Unit 9《Have you ever been to a museum》（Section B 1c）课文朗读
人教版英语八下Unit 9《Have you ever been to a museum》课件7
2014人教新目标英语八下unit 10《I’ve had this bike for three years》period 2课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a 2d课本听力素材（mp3）
2014人教新目标英语八下unit 1《What’s the matter》words单词听力朗读素材（mp3）
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a1课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》period 3课件
人教版英语八下Unit 9《Have you ever been to a museum》（Section A-1）课件
人教版英语八下Unit 9《Have you ever been to a museum》课件9
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a 3a课本听力素材（mp3）
2014人教新目标英语八下unit 10《I’ve had this bike for three years》period 4课件
2014人教新目标英语八下unit 1《What’s the matter》section b 3a-3b（含self check）课件
2014人教新目标英语八下unit 1《What’s the matter》section a 2a课本听力素材（mp3）
2014人教新目标英语八下unit 1《What’s the matter》section a 1b课本听力素材（mp3）
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a 2b课本听力素材（mp3）
2014人教新目标英语八下unit 1《What’s the matter》section a 1a-1c课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》section a 3a-4c（含grammar focus）课件
人教版英语八下Unit 9《Have you ever been to a museum》（Section A 2d）课文朗读
人教版英语八下Unit 9《Have you ever been to a museum》（Section B）课件
2014人教新目标英语八下unit 1《What’s the matter》section b 1a-2e课件
2014人教新目标英语八下unit 10《I’ve had this bike for three years》课件3