美洲驼的食物: grass,hay 美洲驼的身体部位: tail, feet, neck, ears,eyes, snout, hair, toes 疑问代词的用法，例如: why 指示代词的用法，例如: this,that, these 数词的用法，例如: one, two 副词的用法，例如: gently, quickly 表语从句，例如: This is where they live! 特殊疑问句，例如: Why are these llamas in the mountains? 祈使句，例如: Let's take a closer look at llamas.