These questions that transfer role of NL is positive, negative transfer is unavoidable, interlanguage is inevitable will be discussed in this paper.

• 那么，学习者在掌握目标语时究竟应该持哪种态度，本文将从母语的正迁移作用，负迁移的不可避免性及中介语的必然性等方面进行探讨。