十三、书面表达。
作为一名好学生,首先要有健康良好的饮食习惯,其次要遵守交通规则。怎样才能
成为一名好学生呢?请用英文写一写。要求语句通顺,不少于5句话。

How to be a good student?
First, we should have healthy eating habits. We need to eat more fruits and vegetables every day. We shouldn't eat too much sweet food or junk food because they are bad for our health.
Second, we must follow traffic rules carefully. When we cross the road, we should wait for the green light. We can't run or play games on the road.
Besides, we should study hard at school. We need to listen to our teachers carefully in class and finish our homework on time.
If we do all these well, we can be good students.

写作时可先点明主题“如何成为好学生”，接着从健康饮食习惯、遵守交通规则以及认真学习这几个方面展开，运用六年级所学的should/shouldn't、must等情态动词来表达建议，确保语句通顺，符合题目不少于5句话的要求。