Unit 19: Do it for my sake

 Learning grammar points like language of persuasion, verb+ noun collocations

Learning vocabulary and phrases about: persuasion

Learning how to write proposal

Unit 20: We are what we eat

Learning grammar points like: Hypothesizing

Learning vocabulary and phrases about: word formation, Food

Unit21: Natural Wonder

Learning grammar points like: Range of Grammatical Structure

Learning vocabulary and phrases about: Places and travel, Travel Idioms

Unit22: Under the weather

Learning grammar points like: interpreting and comparing

Learning vocabulary and phrases about: weather and climate, collocations, interpreting and comparing

Unit23: I really must insist

 Learning grammar points like: Phrasal verbs 

Learning vocabulary and phrases about: putting your point across

Unit 24: News and Views

Learning grammar points like: Connecting words

Learning vocabulary and phrases about: Experiments and research, Stories in the news

Unit 25: Intelligence

Learning grammar points like: Complex sentences and adverbial clauses

Learning vocabulary and phrases about: Research and reporting on results, intelligence and learning