上课前，我们的老师会检查哪些学生出席或缺席。

Before class, our teacher checks which pupils are present or absent.

我们需要在上课前读课文。

We need to read the text before class.

他习惯在上课前略读课本。

He has a habit of skimming the textbook before class.

我们应该在上课前预习课本。

We should preview the textbook before class.

老师在上课前分发了学习材料。

The teacher handed out the study materials before the class started.

大学要求在上课前完成入学注册。

The university requires matriculation before attending classes.

每次上课前，老师都会先准备好板书。

Before each class, the teacher always prepares the writing on the blackboard.

老师要求我们在上课前预先阅读这一章。

The teacher asked us to pre-read the chapter before the class.

上课前进行体育锻炼。

Take physical exercise before class.

我的生物老师怀特先生在上课前五分钟来到了教室。

My biology teacher, Mr. White, came to the classroom five minutes before the class began.