This document presents Sabrina Wu's final proposal for a study on how learning motivation and reading strategies influence senior high EFL students' vocabulary learning through extensive reading. The proposal includes an introduction outlining the background, purpose and research questions of the study. It then reviews literature on definitions of reading, classifications of reading strategies, differences between effective and ineffective readers, and the impact of reading instruction. The methodology section states that about 180 senior high students majoring in Applied Foreign Language in Chunghwa will participate. Participants will complete a questionnaire, think-aloud protocol, and language test after reading an article. The top 5 and bottom 5 students will be interviewed to understand their strategies and motivation.