初中的学生,正在长身体的关键时期,身体和心理发育都很明显,长高的速度快,长重很明显,成熟的标志更明显,这些变化,影响的不仅是生理,更是心理。这个年龄段的学生有困惑、有渴求、有逆反,想独立而又动荡、敏感,这个年龄,最需要的是关心和引导,稍有不慎,他们在《生物》学习中,就会走向低级庸俗。作为教师本想引导学生走进生命科学,作为学生,他们常常津津乐道于性趣味,性追求,甚至走向性危害。要想让学生正常地成 Junior high school students are in a critical period of long physical and mental development are obvious, growing up fast, long-term weight is obvious, more obvious signs of maturity, these changes affect not only the physical, but also psychological. Students of this age group are confused, they are thirsty, they have the opposite. They want to be independent and turbulent and sensitive. What they need most at this age is care and guidance. They are careless and inadvertently, they will move toward the lower level in “biology” learning vulgar. As a teacher wanted to guide students into life science, as a student, they often talked about sexual interests, sexual pursuit, and even toward sexual harm. To make students as normal as possible