生物教学要符合新课程标准的倡导,构建学生乐学、教师乐教,学生学习效果高效的课堂。实现高效课堂的首要条件是要进行充分的课前准备,精心备课。 Biology teaching should conform to the advocacy of new curriculum standards, and build students ’learning, teachers’ music education and efficient classroom learning. The first condition for achieving an effective classroom is to have adequate preparation for the lesson and elaborate lesson preparation.