If the indiscipline is so disruptive as to hinder the progress of the whole class, the teacher should stop the class and make it clear what is wrong.
举一反三
- My teacher did what he could (__) （make）his class lively.
- The English teacher asked the whole class to __________discussions.
- The whole class ______________ (be) now listening to the teacher attentively.
- When class begins, we stop _______ to the teacher carefully.
- 英语教师指着一只苹果用英语对全班同学说:“这是一只苹果。” A: The English teacher pointed with an apple and said to the whole class in English, “This is an apple.” B: The English teacher pointed to an apple and said to the whole class in English, “This is an apple.” C: The English teacher pointed an apple to the whole class in English, “This is an apple.”