From the above views, we can infer that lexical chunks are frequently-occurred, fixed or semi-fixed mufti-words or sentences which are beyond users' current linguistic ability and are acquired as wholes in the process of language acquisition. Moreover, they can be revived and used as wholes rather than generated from grammatical rules.
浅析词块教学在中学英语教学中的应用(3):http://www.751com.cn/yingyu/lunwen_58683.html