Preliminary data of the biodiversity in the area VNU Journal of Foreign Studies, Vol 37, No 1 (2021) 55 65 55 MOTIVATING SECOND LANGUAGE LEARNERS FROM MAJOR L2 MOTIVATION THEORIES TO IMPLICATIONS FOR L2 CLASSROOM PRACTICE AND RESEARCH Truong Thi My* Hanoi University Km9, Nguyen Trai Road, Nam Tu Liem district, Hanoi, Vietnam Received 28 September 2020 Revised 24 December 2020; Accepted 20 January 2021 Abstract Motivation has long been emphasized as a determinant factor in a learning process in g[.]