麻烦看一下这几句话,有没有错误.

麻烦看一下这几句话,有没有错误.
Abstract
Nowadays vocabulary teaching is playing a fundamentally important and active role in language teaching in middle school. However there are still some misunderstandings in vocabulary teaching and learning, which makes vocabulary classes less effective, even dreary. Therefore, vocabulary teaching is bound to be time-consuming, low-effective and accomplish nothing if the appropriate teaching method is ignored.