Just why does the author say the things he or she does? Every part of the passage
has a purpose, which is typically connected to the main idea.
How to identify a function of passage part question: The question will ask why the author says something.
For what reason does the author mention the slave rebellion as highlighted?
Why does the author cite the studies on macro warming in paragraph 3?
What function does the analogy to a military coup in paragraph 2 serve?
How to tackle it: Generally the function of most passage parts
can be identified as one of the following:
1. Support a point made elsewhere in the passage (maybe the main
2. Show why two things are similar or different.
3. Clarify a point.