【正确答案】It is believed that schemata, meaning packets of stored knowledge, play an important role in language processing．The features of schemata are as follows:
(1)Schemata can vary considerably in the formation they contain．from the very simple to the very complex．
(2)Schemata are frequently organized hierarchically; for example．in addition to a rather general restaurant schema or script, we probably also have more specific restaurant schemata for different kinds of restaurant(e.g.fast-food places, up-market French restaurant, and so on)．
(3)Schemata operate in a top-down or conceptually driven way to facilitate interpretation of environmental stimuli．

【答案解析】[解析] 本题考查图式的特征。图式意为储存知识的信息包，往往是分等级地组织起来的，从非常简单到非常复杂，在语言过程中发挥着重要作用。