Chinese idiom is an important part of children's language development,and exists widely in spoken and written language.In this study,283 third-grade Chinese children were selected and followed up three times from grade 3 entering to grade 5 for two years.A latent variable growth model was used to explore the developmental traj-ectories of high semantic decomposition idiom,middle semantic decomposition idiom,and semantic indecomposable idiom,and the predictive effects of phonological awareness,morphological awareness,and reading comprehension on the developmental trajectories of the three types of idioms.The results showed that:(1)All three types of idi-oms showed a linear development trend over time with significant individual differences in the initial level and de-velopment speed,and there were compensatory effects on the development of high semantic decomposition idiom and middle semantic decomposition idiom;(2)Phonological awareness and reading comprehension could positively predict the initial level of high semantic decomposition idiom,morphological awareness and reading comprehension could positively predict the initial level of middle semantic decomposition idiom,while the initial level of semantic indecomposable idiom was only significantly positively predicted by morphological awareness;(3)Reading compre-hension was a positive predictor and morphological awareness was a negative predictor of the development speed of semantic indecomposable idiom.These results indicate that phonological awareness,morphological awareness,and reading comprehension play different roles in the development of three types of idioms,which enriches the recogni-tion of Chinese idioms and has important implications for future idiom teaching.
idiom comprehension developmentphonological awarenessmorphological awarenessreading com-prehensionmiddle-grade primary school children