题目内容

12．Though it was dangerous      Tom to save the baby from the fire，it was really brave    
him to do so．（　　）
A．of；ofB．of；forC．for：forD．for：of

分析 虽然对汤姆来说从火中救那个婴儿很危险，但是他那样做真的很勇敢．

解答 答案：D．
句意是"虽然对汤姆来说从火中救那个婴儿很危险，但是他那样做真的很勇敢．"第一个设空处前面的形容词是dangerous一般用来修饰事物，所以用句式：It's+adj．+for sb．+不定式，第二个设空处前面的形容词是brave，用来表示人的品德，所以用句式："It's+adj．+of sb．+不定式"故选D

点评 该题考查的是介词的区别，考点较细，It's+adj．+of+sb．+不定式和It's+adj．+for+sb．+不定式的区别比较抽象，应该仔细加以区别．

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