上课前,我走进教室,一位男生正在擦黑板,见我进来,特意放慢了速度,我把课本放在讲台上,转身对同学们说:“建议大家到走廊上呼吸一下新鲜空气,怎么样?”几个深受粉尘污染的同学喊着:“赞成!”欢笑着走了出去。那位男生擦完黑板,满手的粉尘.我顺手接来一杯水给他说:“来,我倒着水.你洗洗手吧!”他不好意思地说:“不用了。”我一把拉过他.“你客气啥呀?”他洗净擦干了手,并没有立即回到座位上,而是走到讲台上,拿我的教本,用抹布擦了擦桌面,然后用嘴轻 Before class, I walked into the classroom, a boy was wiping the blackboard, see me in, deliberately slowed down, I put the textbook on the podium, turned to the students said: “suggest that you breathe fresh air in the corridor , How?? ”Several dust-polluting students shouted: “ in favor! ”Laugh and walked out. The boy wipe the blackboard, full of hand dust.I readily received a glass of water to him, said: “Come, I turned the water.You wash your hands!” He was embarrassed to say: “No.” “I pulled him one by one.” “You’re welcome?” "He washed and dried his hand, and did not immediately return to the seat, but walked to the podium, took my book, wiped with a rag Desktop, then light mouth