上数学课,我同桌在睡觉,老师写了一黑板的数学题。写完后,老师问:谁愿意上来做?这时候我喊醒同桌,说:“嘿,老师让你上去擦黑板。”同桌抬头看了老师一眼,老师看着他微笑地点了点头。他突然站了起来走向黑板,同学一脸惊讶地看着他。只见他拿起黑板擦擦完了整个黑板,底下一片掌声,老师一片黑线…… On math class, I was sleeping at the same table, the teacher wrote a blackboard math problem. After writing, the teacher asked: Who would like to do? At this time I woke up at the same table and said: “Hey, the teacher let you go up and wipe the blackboard. ” At the same table looked up at the teacher, the teacher looked at him smiling nod. Suddenly he stood up and approached the blackboard, and his classmate looked at him in astonishment. I saw him pick up the blackboard wipe the entire blackboard, the bottom of a round of applause, a black line teacher ...