The author of this book starts from the practice of Chinese, borrows theories related to prototype category in cognitive psychology, and designs measurement table that is used for judging whether a word belongs to certain word category and measuring its subordinative degree so that words can be generally divided into certain word category by using a relatively feasible method. This book consists of two parts. The first part makes detailed explanation on four measurement tables, including notional word, function word, pronoun and quantifier. The second part tells about how to use these measurement tables. 900 vague entry words are divided. This book is practical as well as beneficial for word category division of the Chinese language, Chinese grammar study and studies in other fields. - from Amzon