| This thesis quotes semantic parameters of causative constructions listed byDixon (2000), investigates three of Chinese causative constructions:" 使 "construction,"让"construction and " å« " construction mainly, analyses cause the causative gradeof these three kinds, and concludes that the causative grade of " 使" construction arehigher than "让" construction and "å«" construction.In the nine semantic parameters of causative constructions summarized by Dixon (2000 ) mainly, state verbs / action verbs and transitivity are related to verb, control, volition and affectedness are related to causee, directness, intention, naturalness and involvement are related to causer.This thesis analyses " 使" construction, " 让 " construction and " å« " construction from the angle of causer, causee and verb. From the angle of causer, most causers in "使" construction are non-life and have weak intentions; most causers in " 让 " construction and " å«" construction are human or organizations made up by people which belong to high life degrees, and have stronger intentions. "使" construction, "让 " construction and " å« " construction are all the constructions of indirectly causative constructions. The causers in " 使" construction act more indirectly than the ones in " 让" construction and " å«" construction. The causers in "使" construction are generally express the reasons and do not participate in activities, and the ones in "让" construction and " å« " construction are more likely to participate in activities. From the angle of causee, the causes in " 使 " construction are generally lacking control and unwillingly, and the ones in "让 " construction and " å« " construction are having control and willingly. From the angle of verb, most verbs in "使" construction are non-independence verbs (including verb structures , adjectives and adjective structures), most of the ones in " 让" construction and " å« " construction are independent verbs(including verb structures , adjectives and adjective structures).Through comparative analysis, we found that "使" construction shows themeaning of pure "causative", " 让 " construction and " å« " construction do not show the meaning of pure "causative", and they show the meaning of "causative", "command" and "permission". In the causative grade, the typical construction of pure "causative" should in higher grade, so the causative grade of "使" construction are higher than "让" construction and "å«" construction.At last, this thesis points out that the analysis of causative grade of "使" construction, "让 " construction and " å«" construction provides certain reference for teaching Chinese as a second language. |