Diachronic Evolution And Synchronic Differences Of "Tou Ru" In The Perspective Of Global Chinese

Under the concept systems of "Global Huayu" and "Hua yu",the academic circles have carried out independent descriptions and comparative studies of different Chinese variants,which have achieved considerable results.The global Chinese variants with modern Chinese Mandarin as the core have different origins;in the perspective of "Global Huayu",some lexical-grammatical items show synchronic differences in different Chinese variants,and this synchronicity The differences are,to some extent,evidence that the language project is in its various stages of evolution.Taking the word "tou ru" as an example,from the perspective of "Global Huayu",the paper firstly describes the changing process of its meaning,collocation,position in sentences and parts of speech from a diachronic perspective;usage in several mature Chinese variants,and contrast these usages.Afterwards,it examines the use cases and error flags of "Investment" in the "HSK Dynamic Composition Corpus",and then analyzes the results combined with a questionnaire survey,to discuss the flexibility of teaching Chinese as a foreign language from the perspective of "Hua yu".