This document contains summaries of 3 English communication units:
Unit 6 focuses on grammar rules for comparatives and superlatives. Key vocabulary for talking about cities is also introduced.
Unit 7 covers the present perfect and past simple tenses. Examples and time expressions that can be used with each are provided. Vocabulary for talking about changes and trends is also summarized.
Unit 8 summarizes modal verbs and related verbs. Vocabulary for career paths and job priorities is also introduced.