I bought a storybook yesterday

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定语从句特点：1）先行词在从句中做成分,可为主语,宾语,表语,定语,状语.
2） 引导词代替先行词在从句中做相应的成分,引导词的判断根据先此词所作成分判定
3） whose 做引导词引导定语从句的特点是先行词在从句中做定语,也可以理解为,先行词和从句中的名词间存在所属关系.
He is the student whose father got a big fish.(the student's father)
We all like the book whose writer is HanHan (the writer of the book)
注意：在非限定性定语从句当中,whose= the + 名词 + of + which
He bought a golden watch,whose hands was made by gold.
He bought a golden watch,the hands of which was made by gold.