清人刘淇、王引之,今人王力、吕叔湘等对“则”字在古汉语中的作用、词性作了较详细的论述。但是他们对“则”字的某些特殊用法似乎尚未论及。本文试以《吕氏春秋》中有关句子为例,对“则”字用法的某些规律作一探讨。 Qing Dynasty Liu Qi, Wang Yinzhi, present-day Wang Li, Lv Shuxiang and other “the” word in ancient Chinese role, part of speech made a more detailed discussion. However, some of their special usage of the word “Zee” does not seem to have been addressed yet. This paper tries to take “Sentences” in “Lu Shi Chun Qiu” as an example to discuss some rules of “Ze” usage.