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“叮铃铃!”这节是科学课,同学们伸长脖子,巴望着科学老师的到来。过了一会儿,老师来了。可与众不同的是,老师拿来了一个袋子,班上立刻炸开了锅,大家七嘴八舌地议论着,不知道老师葫芦里到底卖的什么药。老师先清了清嗓子,说道:“大家先静一静,你们知道什么是‘小孔成像’吗?”还没等老师说完,下面有人喊道:“那什么是小孔成像?”“下面我们做一个实验来理解。”老师故意卖了个关子,神秘地说,“请大家看大屏幕。”
“Jingle bell! ” This section is a science class, students stretch their necks, Pakistan looking at the arrival of a science teacher. After a while, the teacher came. The difference is that the teacher brought a bag, the class immediately exploded the pot, we ramble talked about, do not know what the teacher in the end gourd drugs. The teacher first cleared his throat and said: “Everyone first quiet, you know what is the” hole imaging “?” Before the teacher finished, someone shouted: “What is the hole imaging ? ”“ Below we do an experiment to understand. ”The teacher deliberately sold off, mysteriously, “ Please see the big screen. ”