星期五午自修,正是我们大名鼎鼎的朱老师的课。吃完午饭,朱老师不紧不慢地走进教室,向我们郑重宣布:“这节午自修谁要是回答对问题,双休日作业减半。”全班同学听了朱老师的这番话,顿时欢呼雀跃起来。大家都在想:啊!作业减半,太棒了!“丁零零!”上课铃响了,同学们一个个都打起了精神,竖起耳朵倾听朱老师提出的问题。第一个问题被“朱妈妈”抛了出来:求正方体有底无盖的面积。听到题目后,同学们立刻在草稿纸上算了 Friday afternoon self-study, it is our famous class teacher Zhu. After lunch, Mr. Zhu walked into the classroom unhurriedly and solemnly announced to us: “This half-day self-study in the afternoon asked for answers to the questions and weekends work halved.” The class listened to Zhu’s remarks , Suddenly cheered up. Everyone is thinking: ah! Homework halved, great! “Ding zero!” The class rang, the students all splashed up one after another, raised their ears and listened to the questions raised by Professor Zhu. The first question was thrown out by “Mother Zhu”: find the area of ​​the cube with no cover at the end. After hearing the question, the students immediately calculated on the scratch paper