摘要：This paper explores literacy issues and lexical development arising from the contact between English as Second Language (ESL/L2) and Yoruba as Mother Tongue (YMT/LI) in the non-formal setting of science and technology (ST) in the south-western part of Nigeria. The paper conducts a study of the language of parts of automobile as they are known by the road-side motor mechanics, the literacy level of the mechanics, and the relationship between these two and their technical skills. By administering questionnaires to thirty-eight (38) auto-technicians, the paper further explores the linguistic and technological implications of all these to improved professional performance by these mechanics on the one hand, and the development of indigenous science and technology on the other. This paper concludes that rather than neglecting them they may well represent a significant instrument of attaining self reliance in indigenous ST development in Nigeria
关键词：English as Second Language (ESL/L2); Yoruba as Mother Tongue (YMT/L1); ;Stylistics; Language contact; science and technology (ST); phonological interference
