In Lesson 9 of Improving Vocabulary in English Language, students will continue to expand their vocabulary by learning new words and phrases. This lesson will focus on vocabulary related to a specific topic or theme, allowing students to deepen their understanding and use of these words in context. Additionally, students will practice using the new vocabulary in speaking and writing exercises to enhance their language skills. By the end of the lesson, students will have increased their vocabulary and confidence in using English in a variety of situations.