中国古老的灌溉工具桔槔,它的发明和应用,对中国农业的发展做出了杰出的贡献。现在的历史教科书已很少提及它。人教版《中国古代史》(选修)对桔槔只作了最简单的注释,学生无法理解其工作原理,也缺乏必要的认识。正是基于“答疑解惑”的目的,本文从记载文献、结构和工作原理、使用局限以及用途四个方面对桔槔作了进一步的阐释和说明,并对历史教科书的修改提出了一点建议。 Its ancient invention of irrigation tools, its invention and application, has made outstanding contributions to the development of agriculture in China. It is seldom mentioned in current history textbooks. PEP “Ancient Chinese History” (elective) only made the most simple annotations on orange cake, students can not understand its working principle, but also lack the necessary knowledge. It is based on the purpose of “answering questions and doubting ”, this article further clarifies and explains the citrus from the four aspects of documenting, structure and working principle, the limitation of use and its use, and puts forward some suggestions on the revision of the history textbook Suggest.