同学们，实践是检验真理问题的唯一标准，运用你们学到的知识实践检验一下能力提升了吗?

参考答案

The value of linguistics in the professional development of language teachers lies in these aspects: to increase the teacher’s understanding of the nature language; to develop the teacher’s awareness of the complexity of language and language learning; to sensitive the teacher in identifying errors and diagnosing their sources; to help the teacher to monitor his/her own use of the target language.