The text contains some samples of tasks and extracts to appear in the second part of IELTS General Module – Reading Component. 

The exercises within that text are compiled in the way to introduce trainees to variuos genres: announcements, commercials, manuals, scientific reviews, etc. 

The samples with this text present multiple types of the tasks and their peculiarities. The text includes lists of words and expressions used in the docs like that. The text might be used either as a revision source before sitting an IELTS exam (Reading Component, General Module) or within Reading Comprehension classes.