在记叙文中，段的结构有时可以很简单，不需要有主题句，叙事一气呵成，中途没有停顿。段与段之所以分开，只是为了起修辞作用，以便把某一细节置于显著的地位。

某些测试用的表达题，在题目中就已经说明只需要根据。所给的提示写一个段落，而不是一篇文章。对于这一类的写作试题，就可以予以简洁的处理，并不是非要扩充成一篇有头有尾的完整文章。

下面这篇题为“Weekend Homework”(谈周末作业)的短文，就是用一个段落来论述问题和表达观点的。

Usally Saturday night is the time for students to get back to their desks and do their weekend homework. Six school days are enough for the students who have many other interests. I think weekend homework should not be given. With homework arranged for Saturday night and the whole of Sunday, when can he find time to help around the house, play a game of football or see a good film, or just relax? In fact weekend homework is usually put off until Sunday night. As a result our homework is done very poorly and we achive no results. If there were no homework on weekends, students would go to school on Monday well rested, willing to work. Teachers, don`t you agree?