记得批改学生习作时，我常发现这样的语句：“夜阑人静，敬爱的老师还在灯下聚精会神地背课。”每次遇到这种情况，我总是仔细地把“背”订正为“备”，而后责备学生连备课也不懂，把“备”错写成“背”。然而，最近听了一些教师的课，我却深感，我们的不少教师是多么需要... I remember when correcting student assignments, I often found the following sentence: “Every night, the beloved teacher is still concentrating on the light to lectures.” Every time I encounter this situation, I always carefully “back” to “prepare ”And then blame the students do not know even the lesson preparation, the“ prepared ”wrongly written as“ back. ” However, recently heard some teachers' class, but I deeply feel that many of our teachers need it ...