高中生物的课时一般较少,特别是高一、高二。而新课标规定的教学内容繁多,为了切实减轻学生负担,真正把时间还给学生,必然要压缩课时,授课时间大量减少。在此情况下,要保证教学质量,就必须采取有效的措施和方法,实施教学改革,提高课堂教学效率,在有限的时间内取得最大的效益。在生物课堂教学实践中,结合生物学科特点采取一些措施,使教学效率有了明显的提高。 High school biology classes generally less, especially the high one, sophomore. The new curriculum provides a wide range of teaching content, in order to effectively reduce the burden on students, the real time back to students, will inevitably compress the class hours, teaching a substantial reduction in time. In this case, to ensure the quality of teaching, we must take effective measures and methods to implement the teaching reform, improve the efficiency of classroom teaching, and achieve the greatest benefits within a limited time. In the biological classroom teaching practice, some measures are taken in combination with the characteristics of biology to make the teaching efficiency improve obviously.