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恐龍的身體部位: bones,skin,neck,knees,ankles,toes,teeth 恐龍的分類: plant-eaters,meat-eaters 恐龍的繁殖方式:egg,nest, hatch 疑問代詞的用法，例如: what,when, where 指示代詞的用法，例如: this,that, these, those 副詞的用法，例如:safely 情態(tài)動(dòng)詞的用法，例如: can,might 賓語從句，例如: A dinosaur's teeth tell us what it ate 特殊疑問句，例如: Where did they come from? -般過去時(shí)的用法，例如: The bones weren't always at themuseum.