Read and write. （读单词，给单词分类，并抄写在相应的横线上）

brother  peach  Canada  orange  French fries  twenty  squirrel eleven America

grandma apple ant duck pear goose thirteen boy tiger chicken queen snake watermelon

国家：                                                                        

人物：                                                                        

数字：                                                                        

动物：                                                                        

食物：                                                                        

什么是“三不放过”原则和“逐级上诉”原则？