30 5 1年的一天 ,人类第一座临时学校开始上课。第一节是地球历史课。老师在电子黑板上打出了一片黄树叶的图案 ,同学们立刻提起了精神。老师让他们回答这是什么图案 ?同学桌上的红灯相继亮起来。老师从计算机里调出了学生的答案。有人说是飞船 ,有人说是只鞋子 ,还有人说是一 One day a year, the first human temporary school began. The first section is Earth history lesson. The teacher made a pattern of yellow leaves on the electronic blackboard, and the students promptly raised their spirits. Teacher asked them to answer what is this pattern? Students red light on the table have been lit up. The teacher calls out the student’s answer from the computer. Some people say that the spacecraft, some people say that only shoes, others say one