fast food is becoming more and more popular in china, especially among children and teenagers. today, nothing is more representative of the fast pace of modern society than fast food. there are several reasons for its popularity. first, it is quick and convenient. go into a fast food restaurant, and your food will be ready in a minute. you can satisfy your hunger instantly. precious time won't be wasted in waiting-in-line to order or waiting at your table for your food to arrive. second, its popularity is also attributed to the clean food, the excellent service and the comfortable environment of the fast food restaurant.

　　however, i think that fast food isn't healthy enough because it does not compose a balanced diet and is low in nutrition. doctors suggest that people should avoid eating too much fast food. although home cooking is time-consuming and following washing-u p tiresome, it offers healthy and delicious meals your body likes and needs. fast food i s only a good choice when you are in a hurry and we should turn to it only once in awhile.