《珍贵的教科书》这篇课文讲的是革命战争年代延安小学的师生,在艰难困苦的环境下坚持学习的事。课文记叙了张指导员为了保护教科书而英勇牺牲的经过,表现了革命先辈 “Precious textbook” This text is about the teachers and students of Yan’an Primary School in the revolutionary war era who insisted on learning in a difficult and difficult environment. The text narrates the heroic sacrifice made by Zhang instructor in order to protect the textbooks,