| The common Chinese word "Da" is a level A word in the "Chinese Proficiency Vocabulary and Chinese Character Grades",but a corpus search shows that Chinese learners often make mistakes when using "Da".Because of the complexity of "Da" itself and its many meanings,it is difficult for foreign students to acquire this word.Therefore,the author will take "Da" as the object of study,firstly,conduct an ontological study of "Da",then summarize the types of errors by observing the collected corpus,analyze the causes from the perspective of second language acquisition and teaching,and put forward effective teaching suggestions.This paper is divided into five parts.The first chapter is the introductory section.It introduces the background of the chosen topic,the significance of the chosen topic,the current status of the study,and the research method and the sources of the corpus.Chapter Two is an ontological study of the commonly used Chinese word "Da".In terms of semantics,"Da" is a multi-functional word with many meanings,each of which is derived from the basic meaning,forming a complex and multi-functional semantic system.In terms of syntactic structure,"big" has both adjectival and adverbial forms.The adjective "big" can be used as a definite article,a predicate and a complement.The adverb "Da" can be used as a gerund and we believe that the adverb "Da" has two meanings,which are different in semantics and usage.We also examined the fixed form "big A big B",which is used very frequently and has specific meanings and syntactic functions.In addition,in the ontological study of the common Chinese word "Da",it was found that when "not" is used in conjunction with "Da" to form the Chinese structure "not big",When "not" and "big" are used together to form the Chinese structure "not big",the lexical nature of Da "" remains unchanged and it is a negative adverb,while "Da" can be either an adjective or an adverb.When "Da" is used as an adjective,"not big" is a phrase.When "big" is used as an adverb,"not big" is a word.The third chapter analyses the types of errors that Chinese learners acquire from the semantic and syntactic levels,which include four main categories: mixed use,misordering,omission and wrong addition.From the classification,it can be seen that mixed-use occur most frequently and should be given sufficient attention in teaching and learning.Due to the complexity of the meaning of the common Chinese word "Da" and the similarity of its meaning and usage with many other words,and the fact that Chinese learners do not grasp the semantic features of the common Chinese word "Da" well and ignore the difference between "Da" and other words,"Da" may be misused.The difference between "Da" and other words is often confused and misused.Chapter fourth discusses the causes of bias,which are mainly due to the complexity of the common Chinese word "Da",negative native language transfer and overgeneralisation of knowledge of the target language.Four specific solutions are proposed: strengthen the teaching of syntactic rules,enhance the teaching of semantic contrast,pay attention to the teaching of pragmatic situations,and teach with the help of antonymic morphemes,in order to help the teaching of the common Chinese word "Da".Conclusion.The content and shortcomings of this paper are summarized. |