Expert User. Has fully operational command of the language: appropriate,accurate and fluent with complete understanding.
Very Good User. Has fully operational command of the language with only occasional unsystematic inaccuracies and inappropriacies. Misunderstandings may occur in unfamiliar situations. Handles complex detailed argumentation well.
Has operational command of the language,though with occasional inaccuracies,inappropriacies and misunderstandings in some situations. Generally handles complex language well and understands detailed reasoning.
Competent User. Has generally effective command of the language despite some inaccuracies,inappropriacies and misunderstandings. Can use and understand fairly complex language,particularly in familiar situations.
Modest User. Has partial command of the language,coping with overall meaning in most situations,though is likely to make many mistakes.Should be able to handle basic communication in own field. 适当及格,可部分运用英语,在大多数情况下可应付全部的意思,虽然可能犯下许多错误,在本身领域内应可掌握基本的沟通.
Limited User. Basic competence is limited to familiar situations. Has frequent problems in understanding and