introduction

The importance of vocabulary in language was introduced, emphasizing that the core of high school vocabulary teaching is to cultivate students' awareness of lexical chunks in context. The importance of thematic context in language learning has been mentioned, as it not only defines the scope of language and cultural knowledge learning, but also provides a meaningful context that permeates emotions, attitudes, and values. The level of students' understanding of the thematic context affects their cognitive development and language learning outcomes. Under the guidance of thematic meaning, chunk teaching can improve students' understanding and expression abilities, and promote deep discourse comprehension. However, there are problems in current high school English teaching, such as the detachment of chunk teaching from context, fragmentation, single methods for students to identify and use chunks, and lack of evaluation mechanisms. These problems reduce teaching efficiency and are not conducive to improving students' abilities.

The connotation, types, and application value of lexical chunks

Lexical chunks are phrases, fixed collocations, idiomatic expressions, and sentence structures frequently used by language users in the process of language input and output, which integrate grammar, vocabulary, and function, and are conducive to improving language generation ability. A chunk is composed of multiple words and is the smallest combination of form and meaning, constrained by context. According to Lewis' classification, lexical chunks can be divided into four types: multi word chunks, idiomatic collocations, idiomatic expressions, and frames. Memorizing words in chunks can change the phenomenon of students memorizing vocabulary in isolation, guide students to store and call chunks as a whole, and effectively improve the accuracy and fluency of language use.

The cultivation path and teaching practice of chunk awareness in high school English based on thematic context

Introduced the cultivation path and teaching practice of chunk awareness in high school English based on thematic context. The Foreign Language Research Press High School English (2019 edition) provides rich thematic contexts and abundant language materials for cultivating students' core subject literacy. The article takes the understanding ideas section of Unit 1 Food for thought in the compulsory second volume as an example to explore how to carry out chunk teaching practice activities in one class. The theme context of this unit is "People and Society", involving diverse dietary cultures and healthy eating habits. The teacher has set the teaching objectives of this lesson as follows: 1) to understand, memorize, and apply new vocabulary in thematic contextual chunks; 2) Based on the theme context, guide students to identify, extract, memorize, and apply lexical chunks in discourse through the "Three Rings and Eight Steps", improve vocabulary memory effectiveness, expand vocabulary, enhance the ability to accurately understand and express meaning, form a good awareness of lexical chunk learning, and lay the foundation for enhancing the core literacy of English language subject.

conclusion

It emphasizes that in high school English teaching, teachers should design practical thematic contextual teaching activities to cultivate students' chunk awareness. Teachers need to have a teaching awareness of lexical chunks and help students establish sensitivity to lexical chunks through purposeful guidance. Meanwhile, teachers should encourage students to experience the importance of lexical chunks through diverse activities, and cultivate their ability to independently discover and learn lexical chunks through evaluation activities, in order to enhance their English reading and expression skills.