获取文献信息的有效方法是学会文献检索．文献检索课是一门科学方法课，必须通过大量实习方能掌握文献检索原理与方法．为此，所使用的实习模式主要包括三个步骤，即对事实、数据性文献的检索，专类文献的检索以及专利文献的检索．通过实习能使学生牢固地掌握这门课的基本内容． An effective way to obtain literature information is to learn literature retrieval. Document Retrieval Course is a scientific method, must pass a large number of internship to master the principle and method of literature retrieval. For this reason, the internship model used mainly consists of three steps, that is, the retrieval of factual and data literatures, the retrieval of special literatures and the retrieval of patent documents. Internships enable students to firmly grasp the basics of this course.