现在中国流行快餐，但快餐对人体并没有什么好处。请根据以下要点，以"Fast Food"为题为学校写一篇海报，向同学们普及一下相关知识。要点如下：
1.优点：
（1）便利性；
（2）服务质量；
2.缺点：营养单一。
3.建议。
注意：
1.词数100左右；
2.可以适当增加情节，以使行文连贯。

【考点】提纲作文．

【答案】Fast Food
Fast food is becoming more and more popular in China，especially among children and teenagers.
There are several reasons for its popularity.First，it is very convenient and saves a lot of time.You just go into a fast food restaurant，order your food，and your food is ready in no time.Second，you can either eat there or take it away.Third，the environment of fast food restaurant is both clean and comfortable.Fourth，it has excellent service，and the quality of food is guaranteed.
However，in terms of nutrition，fast food is far from satisfactory.It is usually not a balanced diet and low in nutritional value.
Fast food is only a good choice when you are in a hurry and turn to it once in a while.It's good for people，especially children，to eat fast food as little as possible.