高士其同志是我国著名的生物学家,他多年从事科学普及工作,特别关心我国生物学教学的发展,他的文章和著作一直受到广大青少年的喜爱。本文是他应本刊的邀请写给中学同学的。请老师们把它介绍给青少年朋友,希望他们为了实现四个现代化,要热爱生物科学,努力学好生物学。 Comrade Gao Shiqi is a famous biologist in our country. He has been engaged in science popularization for many years and is particularly concerned about the development of biology teaching in our country. His articles and writings have always been loved by the majority of young people. This article is for him to write to middle school classmates. Teachers are invited to introduce it to young friends and hope they will love biology and strive to learn biology in order to realize the four modernizations.