Conjunctive words means that a word belongs to multiple types of words or has multiple parts of words.The difference in its usage are usually different from each other according to the different positions of syntactic distribution.But different parts of word and class words also exist syntactic distribution position the same position,because of meaning,most learners in the process of learning there are difficult,difficult to remember,difficult to use,so they usually use the meaning,language sense to distinguish different two or more parts of words,so the different parts of word misuse,combination of semantic collocation,improper pragmatic expression of context,such as the emergence of regular class bias is inevitable.Therefore,concurrent class words have always been a difficult point in the teaching of Chinese as a foreign language.In modern Chinese,"He" It belongs to the first-level vocabulary in the International Chinese Education Chinese Level Standard.It is a high-frequency word.In modern Chinese,"He" has both prepositions and conjunctions.When "He" of different parts of speech are distributed in different syntactic positions with the same morphology,it is generally difficult for learners to remember,distinguish and use in the process of learning.In communication,they usually distinguish by word meaning,language sense and intuition,so the misuse of word classes is inevitable.Therefore,this paper selects this typical facultative word as the research object,and retrieves 93 misuse bias corpora,197 omission bias corpora,and 118 redundant bias corpora of "He" in the HSK dynamic composition corpus,indicating that the omission omission bias of the facultative word "He" is the most typical.In this paper,the omission and bias of the typical double-class word "He" is selected as the research scope,and the bias corpus within this specific scope is sorted,and the categories of bias are defined in terms of syntax,semantics and pragmatics to find out the reasons for the existence of different types of bias.In this paper,corrective measures are formulated,and corresponding teaching and learning strategies are further given.It is expected to be a case study on the acquisition of Chinese facultative words.We first start with the syntactic,semantic and pragmatic characteristics of "He" as prepositions and conjunctions,and provide theoretical support for bias analysis.Then the sorted corpus is divided into three types: syntactic bias,semantic bias and pragmatic bias,and quantitative statistics and qualitative analysis are conducted on each type of biased corpus.According to the corpus of "He","He" is the most biased one,with 132 errors and 69 biased errors for prepositions.When "He" is a conjunction,syntactic bias is mainly the bias of the subject position,the bias of the object position,the attribute position,semantic bias includes parallel sense bias and selection bias,which is divided into enumerative function bias,prominent bias of semantic expression,tone function bias;when "He" is a preposition,syntactic deviation is mainly the deviation in the position of adverbial.The semantic deviation includes object meaning expression deviation,comparative sense expression deviation,action meaning expression deviation,and synergistic meaning expression deviation,which is divided into the error emphasizing functional deviation and cohesion function.After analysis,the reasons of bias are summarized into three kinds: the first is the incomplete grasp of the rules of target language;the second is the negative transfer of mother tongue;the third is the improper learning strategy and communication strategy,and finally the corresponding teaching suggestions and learning strategies according to the causes of bias. |