滨州市要参加“创建全国文明城市”活动，北中的学生积极参与到创建“文明城市”的活动中来，并为此制定了以下制度。
1.对人有礼貌，在公交车上遇到老人要让座。
2.遇到有困难的人主动伸出援助之手。
3.遵守交通规则，不闯红灯。
4.保护环境，不乱扔垃圾。
5.利用周末去做志愿者。
请你根据上述要点写一篇80词左右的作文。注意语言连贯，课适当发挥，开头句子已给出，不再计入总字数。
Binzhou is now trying to become a national civilized city.As students , what should we do ?
First, as a student we must be polite to other people .When we meet old people on the bus, we should offer our seats.Second, we should try our best to help people who are in trouble.Third, we should obey the traffic rules.For example, we mustn’t walk when the traffic light is red.What’s more, we should protect our environment.We shouldn’t drop the rubbish everywhere.At last, we should also do something to serve the society.We can be the volunteers in our spare time.
In this way, I believe our city will become more and more beautiful in the future.
