comprehensive - simple - clear
..........................excellent
As to the disccussion
After working with my students I realized that they could write three paragraphs based on this unit
The first
Imagine that you are a computer programmer , a civil engineer or a receptionist. write about your job
the second
write about the distingished Egyptian surgeon Dr Magy Yacoub.
The third write about
The importance of charitable organizations .
this will eliminate their phobia of this question as they have much vocabulary and ideas about these paragraphs through studying the unit.