“丁零零……”大嗓门儿的上课铃唱起了歌,我们期待已久的科学课又到啦!蒋老师大步流星地走上讲台,满面春风地告诉我们:“今天,我们继续跟空气打交道,要做孔明灯实验,请各小组派代表上来领材料!”我兴奋地以百米冲刺的速度跑上讲台,领了一个紫色的塑料袋和一支白色的长蜡烛,喜滋滋地回 “Ding zero ... ” loud voice children’s class bell sang song, we have long been looking forward to the science class! Jiang teacher strode to the podium, full of breeze tell us: “Today, we continue To deal with the air, to do Kong Mingdeng experiment, please send representatives to receive the material team! ”I am excited to sprint speed ran the podium, led a purple plastic bag and a long white candle, happy Back