First, we choose six verbs and two nouns, all of which have a relatively high frequency in English. Then their respective concordance lines are retrieved from both CLEC and Brown Corpus, and LOB if the concordance lines from Brown are not adequate enough.

• 首先,选定英语中常用的6个动词和2个名词,分别从CLEC和Brown提取相关的词语索引条,若Brown中词语索引条不足,则从LOB中提取来补充;