短语动词是英语语言实践中最活跃、最重要的词语组合。它既是一个完整的语义单位，又是一个不可分割的语法单位。其语义繁多，句法功能和结构复杂，记忆、归纳较困难。为便于理解和掌握，应从结构、句法、语义等方面对短语动词进行深刻地分析和确切地论述。 Phrasal verbs are the most active and important word combinations in English language practice. It is both a complete semantic unit and an indivisible grammar unit. It has many semantics, complex syntactic functions and structures, and it is difficult to remember and summarize. In order to facilitate the understanding and mastery, the phrasal verbs should be profoundly analyzed and accurately discussed in terms of structure, syntax and semantics.