介词“向”产生于南北朝时期,由动词语法化而来。动词“向”经常带处所宾语,这是它语法化的语义基础;由于表达的需要,“向”经常被用于连动式中,连动式为“向”的语法化提供了条件。人们对无标记形式的追求以及人们认知过程中前景信息的完全转移是“向”语法化的主要动因。 Preposition “to ” was produced in the Northern and Southern Dynasties, from the grammaticalization of verbs. The verb “to” often takes the place of the object, which is the semantic foundation of its grammaticalization. Because of the need of expression, “to ” is often used in conjunction, and the conjunction is “” Provided the conditions. People’s pursuit of unmarked forms and the complete transfer of foreground information in people’s cognition are the main motivators of the grammaticalization of “to ”.