A construction defined in Cognitive Construction Grammar is a form-meaning paring ,a symbolic unit .Constructions with different meaning and generality inherit from or dominate others to form the linguistic hierarchical network . Verbs are not independent polysemous words but are involved in specific argument-structure constructions representing events .A verb and its frequently co-occurring and readily evoked nouns form a composite symbolic unit .With its special event schema and gestalt effect ,it can categorize other participating components in forming its inheritance instances .This unit is called verb's basic construction(VBC) . An investigation into the polysemy of Mandarin verb″chi″(eat)shows that the meaning change is connected with the interaction between the verb and different nouns collocating with it and shows how inheritance sentences are categorized and constuctionalized with metaphor and metonymy construals .Strictly speaking ,this meaning change caused by the interaction occurs on all the participating components ,but not on the verb alone . While a VBC is a private construction for a verb ,each of numerous VBCs can participate as a component in one super-verbal construction ,which is ,therefore ,a public construction and more abstract than VBCs . This type of construction can further be classified into two subtypes : ones profiling VBCs'b ackground roles and ones with special functions . According to Goldberg's Construction Grammar ,the VBC qualifies as a construction with concrete roles . The construction deserves special attention for the following reasons . First ,the return from verb's lexical polysemy to its constructional polysemy will display clearly meaning extensions and extension routes caused by the interaction between construction participants ,including entrenched chunks and new meaning inference . Second ,VBCs form the basis of the linguistic network ,since their usage frequency is higher by far than when they participate in super-verbal constructions and in them more meaning extensions occur than otherwise . Third ,the display of VBCs'p articipation in higher-level constructions will show ways and results of their interaction and integration ,such as addition and fusion .Fourth ,different degrees of typicality that various VBCs or VBC groups show in their above-mentioned participation and interaction can ,therefore ,be shown in a broader view . Fifth ,unlike other schools ,Cognitive Construction Grammar argues for wholism . Therefore ,argument for the VBC is only natural and logical ,while failure to do so is groundless and needs correcting . The notion of VBC may be generally accepted all the time ,but the demarcation between syntax and lexicon advocated by traditional grammar and TG Grammar is deep-rooted and thus has caused the illusion that VBC establishment is unnecessary . The advent of Cognitive Construction Grammar made it possible ,but attention and consideration must be given before it is well-established .Just for this purpose the present research is conducted .