Last week I posted a context clues worksheet, the reason for whose existence escaped me, on the noun utility in the sense of a service (as light, power or water) provided by a public utility. Here is a context clues on the other meaning of utility, which is to say either fitness for some purpose or worth to some end or something useful or designed for use. Unless you work at a economics-and-finance-themed high school like the one in which I serve, this is probably the better worksheet for you.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.