【正确答案】正确答案：Since linguistics is defined as the scientific study of language, it seems obvious that such a study would help a lot in language teaching and learning. Applied linguistics serves as a mediating area that interprets the results of linguistic theories and makes them user-friendly to the language teacher and leaner. Applied linguistics is conductive to foreign language teaching in two major aspects. Firstly, applied linguistics extends theoretical linguistics in the direction of language learning and teaching, so that the teacher is enabled to make better decisions on the goal and content of the teaching. The teacher can make more informed decisions on what approach to take, hence what to teach. Secondly, applied linguistics states that the insights and implications that linguistics theories have on the language teaching methodology. Once the goal and content of the teaching are settled, the teacher has to consider questions of how to teach. Since applied linguistics defines the nature of language learning in connection with various linguistic theories, it helps the teacher to choose teaching methods and techniques.