With theory as the forerunner and material as the basis, the writing of this dictionary is being done under the direction of linguistics, lexis and lexicology theory.
The paper aims to discuss how to apply the semantic field theory to improvement of teaching business English lexis so as to help the students acquire vocabulary.
According to the theory on patterns of lexis, the English texts can be described as a complexion of three parts: lexis repetition, sentence bonds and sentence coherence.