Abstract: Based on Swales’ modified CARS model, this paper analyzes the similarities and differences in genre of introduction sections between that of the Chinese and foreign forestry SCI indexed papers, to provide reference for forestry English academic writing. The results show that: 1) Introductions in Chinese and foreign forestry journals generally are in the length of more than 800 words. 2) The first part in about half of papers in domestic journal Forest Ecosystems is written as “Background”, but it can be identified as “Introduction...