![](https://research.class.cityu.edu.hk/wp-content/uploads/2024/01/20231220_CLASS_Research_Verb_Frame_in_Chi_Textbooks_Cover-219x146.png)
Textbooks serve as a vital language input for language acquisition, as indicated by usage-based accounts of language acquisition. Prof LIU Meichun and Prof John LEE Sie-yuen from CityU’s Department of Linguistics and Translation conducted a research project analysing verb-frame diversity and distribution trends by difficulty levels based on a corpus of primary school Chinese textbooks.