The Estimated collective classifiers are a kind of classifiers that can semantically reflect collection and uncertain numbers.They are distinctive when it comes to other classifiers.How to effectively enable students to acquire such classifiers has become a new challenge for classifiers teaching in ICLE.This paper selects three approximate classifiers "Qun,Dui,Pi " from the outline of HSK as the research object,and analyzes them from the dimensions of Ontology and Teaching.In the aspect of Ontology,this paper analyzes the common semantic features and different semantic features of "Qun,Dui,Pi ",and finds that they are similar in "plural,approximate and collective",but still are different in semantic features such as "shape,simultaneity and organization".In addition,this paper investigates the Semantic prosody of the them,and comes to the conclusion that the positive Semantic prosody of "Qun" is the highest,"Dui" is the second,and "Pi" is the lowest.In the aspect of teaching,taking Lao students as the survey object,this paper analyzes the errors of the corpus that from the questionnaire.The results of the questionnaire show that the errors of Estimated collective classifiers "Qun,Dui,Pi " of Lao students can be divided into semantic errors and grammatical errors.The former including Semantic ambiguity,indiscrimination in synonym and being bad at distinguish the negative and positive meaning;The latter including omission,incorrectly added and wrong sequence.The causes of errors include shorting of related concept,negative transfer of mother tongue,over-generalization,the influence of study strategies and communication strategy,the influence of teachers.Based on the error analysis,this paper proposed corresponding suggestions from the aspects of teachers,students and teaching materials.Teachers should make proper use of learners’ mother tongue,extend common collection appropriately,the use cases should follow the rule that from concrete to abstract and make use of Semantic prosody;In the process of learning the classifiers,students should establish the concept of comparative learning and cultivate the awareness of autonomous learning;When annotating quantifiers in teaching materials,we can use meta-annotation and pay attention to the combination of complexity and simplicity.We need to give specific examples,set diversified question setting and compare synonym classifiers.We hope that the study can offer an effective reference for the teaching of Estimated collective classifiers. |