The author builds up a mini - corpus of instructions of activities of the two course books 首先，作者将两本教材的活动指令语建成一个小型语料库。
2.
The author read major activities in the two course books and found that these activities reflect their features on the instructional verbs or verb phrases 作者通过阅读主要活动发现这些活动的特征能较集中的从活动指令语的动词和与其相应的名词上体现出来。
3.
They are used as search words to search the corpus . the author reads each instruction carefully and evaluates three features of activities 作者仔细阅读检索出的每个活动指令语，根据搜索词表与评估框架决定该活动的认知特点以及该活动是否具有探究或者交际特点。
