要点提示：

1、 读懂题目，了解写作主题。该文讲的是养成一个按时上课的习惯有什么益处。

2、 文章第一段引出话题，可适当背诵一些常见引出话题的句子。

3、 文章第二段，围绕按时上课带来的好处展开行文。

4、文章第三段，总结第二段，可以适当背诵一些常见总结句。四级英语

参考例文：

College class attendance

At present there are some students who are late for their classes or slip out of the classroom before the class is over, what’s worse, some are absent from their classes. Class attendance has become a thorny problem for both students and teachers.

Actually, it is important for students to attend their classes regularly. First, it will keep students catch up with the teachers in their learning, which is helpful to them if they want to gain excellent results in their study. Second, attending classes regularly is a way of showing respect to teachers. It will bring terrible influence on teachers if students do not attend their classes. Third, attending classes regularly will boost students to form a good habit of punctuality, which is beneficial to students to work well in the future.

Thus, it is necessary for university students to form a good habit of attending their classes regularly.