听力原文:With more and more people turning to fast food as a meal option, more and more people are becoming overweight. If you enjoy the rich full taste of fast food, but not the calories, Taste Lean Burgers are the way to go. With less than 15 percent of the fat of the average burger, Taste Lean means you can enjoy the taste without having to worry. We have restaurants in 25 handy locations across the state. So, if you are after a taste sensation in a hurry, head on down to the nearest Taste Lean near you. What is the purpose of this advertisement?