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数学课上,我正讲得起劲。当我讲到常用的长度单位有“米、分米、厘米。毫米”时,邱晓艳同学冒出了一句:“老师,还有‘纳米’。” 一阵哄堂大笑过后,同学们的眼光茫茫然地望着这个“插嘴”的学生,继而又把目光一齐投向了我。 我微微一笑。 “你知道得真多,你是怎样知道的?”我笑着对她说。 “我是从书上看到的。”她不好意思地说。 “有关‘纳米’的知识,你还知道哪些,能和同学们说说吗?”我说。 “我还知道‘纳米’是一个长度单位,1纳米等于一百万分之一毫米,在电冰箱、洗衣机、飞机制作中利用纳米技术,可以使它们既轻便,又坚固耐用……”她滔滔不绝地讲着。 此时同学们早已瞪大了眼睛,张大了嘴,发出一阵嘘唏声,禁不住向她投去了羡慕的目光,继而又是长时间热烈的掌声。
In math class, I am speaking energetically. When I talked about the commonly used length unit “rice, decimeter, centimeter. Mm”, Qiu Xiaoyan students emerge a sentence: “teacher, there are” nano. “After a burst of laughter, the students' eyes are boundless Looked at this ”interrupting“ students, and then put all my eyes on me. I smiled. ”You know so much, how do you know?“ I smiled and said to her. ”I saw it from the book,“ she said, embarrassed. ”Do you know anything about 'nano' knowledge and can you talk to your classmates?“ I said. ”I also know that 'nano' is a unit of length and 1 nanometer equals one millionth of a millimeter. Using nano-technology in refrigerators, washing machines, and aircraft makes them both portable and durable ..." She fluttered Never say. At this point the students had already widened their eyes, mouth wide open, issued a burst of hush, could not help but cast her envious eyes, then there is a long warm applause.