After study,the author of this thesis absorbs and extracts the essence of Chinese translation aesthetics, which includes four aspects: persistence in faithfulness, pursuit of expressiveness, emphasis on resemblance of spirit and creation of ideorealm, and uses them as the theoretic principles for this thesis.

The paper makes a comparison between the American student workers and Chinese instructors from the perspective of management system,working theories and locations,contents and manners of work as well as the current situation of the work development.

The present study investigates the development of pragmatic competence by sixty-four American learners of Chinese at low and high Chinese language proficiency in gratitude realization by means of the written Discourse Completion Tasks (DCT) and the possibility scaled-response questionnaire.