It's frustrating to see students who rely on textbooks to teach them everything about the English language. Why read an article in an 'upper intermediate' textbook (that was probably written 10 years ago) when you could be reading 'real' articles in newspapers or on the Internet?
Read articles because you find them interesting, not because they have been written to demonstrate a particular grammar point.
A suggestion: if you've read anything really interesting recently, put a link to it (and maybe a quick summary if you have time) in the comments area below this lesson. As an example, click here to see an article that I read the other day.