关键词: 语法, 词汇, 语言发育迟缓, 儿童

Abstract: 【Objective】 To identify the language development of children aged 2 to 4 years old. 【Methods】 A total of 713 children aged 24~47 months living in Heze city was randomly selected.Their parents were asked to complete a detailed questionnaire about their children's language skills.The questionnaire included a total of 260 particles and phrase(18 kinds of words and 14 kinds of expressive phrases). 【Results】 1) There was a significant gender difference in grammatical development between 24 to 47 months,girls could express more kinds of particles and phrases than boys.2)Actor-action and action-object were the earliest phrases. 【Conclusions】 To master of children aged 2~4 years old with normal language development law,is helpful for professionals in language development guidance and assessment,the preschool language education and special education language rehabilitation scientific and orderly.

Key words: grammar, vocabulary, language development delay, children