中文摘要：

文章主要介绍了双语言语产生中词汇提取机制的两种理论：非特定语言提取的理论和特定语言提取的理论。重点围绕着双语言语产生中词汇提取的一个关键问题，即非目标语言的词汇是否对目标语言的词汇提取形成竞争或者干扰详细地论述了二者的理论分歧，非特定语言提取的理论认为非目标语言的词汇会对目标语言的词汇提取形成竞争，而特定语言提取的理论认为不会形成竞争。文章最后介绍了双语言语产生中词汇提取机制的最新研究趋势，表明了非特定语言提取的理论和特定语言提取的理论逐步走向融和。

英文摘要：

This paper mainly introduced two theories about the mechanism of lexical access in bilingual speech production： language-unspecific selection theory and language-specific selection theory. And the question of whether or not the lexical nodes of the non-response language act as competitors to those of response language is crucial for the mechanism of lexical access in bilingual speech production. This paper mainly discussed the differences between these two theories about the crucial question. The language-unspecific selection theory states that the lexical nodes of the non-response language act as competitors to those of response language, but the language-specific selection theory does not. At last in the new trend of the mechanism of lexical access in bilingual speech production, the consistencies between these two theories on two aspects were introduced.