作文範文：
Should Class Attendance Be Optional
It is really a common scene in college classroom and lectures: students are engaged in whatever they can think of except listening carefully to their teachers and reflecting actively on what is taught. For example, they are busy with sleep, playing games with the phone, communication with friends through short messages. Some students even are absent from classes.
This phenomenon is worrying and attracting a lot of discussion among the people concerned. There is an opinion that class attendance should be optional. Firstly, the students have the freedom to choose their universities, their majors, and definitely are free to choose whether or not to go to classes. Secondly, the teaching quality has a great influence on the students choice. Thirdly, if the students are forced to the classroom, their careless attitude hurts both the teacher who may feel his effort is not worthy and other hard-working classmates who may be distracted.
