I’m going to discuss “connecting words”.
Connecting words come between two ideas and help explain how they relate to each other.
Here I have an example from the New England Journal of Medicine using the connecting word “though”. Pay attention to how that word tells the reader what to expect from the second idea.
the total number of beds in Ebola treatment centers far exceeded the number of patients reported each week, though there were substantial gaps in treatment capacity in some areas of all three countries
Here’s a brief list of connecting words that serve the same purpose as “though”: