1、（giving reasons）,Paragraph writing in task-based writing：,分析原因,Fast food is becoming popular in China, especially among children. There are several reasons for its popularity .First , it is very convenient and saves a lot of time to eat fast food. You just go into a fast food restaurant, order your food, and then you can either eat there or take it away. Second, its popularity is also due to the comfortable environment and the quality of food in fast food restaurants.,主題：分析洋快餐在中。