她站在讲台上,眼睛闪闪发光,看着前面暗淡的屏幕,不禁感到困惑。难道这是教室?但看来这确实是个教室——空气有点暖和但不太清新,有书本、粉笔灰,有熟悉的木质讲台。教室里光线很暗,其中隐约闪烁着微光——是玻璃?是塑料?黑暗中,她看不出前面是什么在看着她。教室里有一阵小小的骚动——是期待?是不耐烦?显然,有什么东西在等着她。她看了看面前的备课笔记,上面写的是“地球史”。地球史?这课程太难了,学生能听懂吗? She stood on the rostrum, his eyes glittering, looking faintly in front of the screen, can not help but feel puzzled. Is this a classroom? But it does seem like a classroom - the air is a bit warm but not too fresh, with books, chalk, and familiar wooden podiums. The classroom was very dark, with dim glimmering flickering - glass, plastic, darkness, and she could not see what looked ahead of her. There was a little commotion in the classroom - was it looking forward to? Impatient? Obviously, there was something waiting for her. She looked at the preparatory lesson notes in front of it and wrote “Earth history.” Earth history? This course is too difficult for students to understand?