GbEng
你应该在课堂上完成语法练习。 You should finish your English grammar drills in the class.
有些教师觉得课堂秩序很难维持. Some teachers find it difficult to keep order in their classes/to keep their classes in order.
老师在这类课堂活动中起着十分积极的作用。 The teacher plays a very active part in this type of classroom activity.
要不然他还会在教书,因为他的心仍然在课堂上和他的学生们在一起。 Otherwise he would still be teaching, because his heart and soul were still in the classroom with his students.
研究计划一个学生或一组学生执行以使用、阐明或补遗课堂作业的大量任务 An extensive task undertaken by a student or group of students to apply, illustrate, or supplement classroom lessons.