21世纪是信息时代,知识经济时代,科学技术竞争激烈。为了适应时代发展的需要,我们的教育需要牢固确立学生的学习主体地位,积极引导学生学会在浩瀚的知识海洋中自主遨游,自主发展;学会在人际交往中,敢想敢说,各抒己见,广泛交流,培养学生的自主学习能力以及合作意识。因此,在生物教学中, The 21st century is the information age. In the era of knowledge economy, science and technology are highly competitive. In order to meet the needs of the development of the times, our education needs to firmly establish students’ learning status and actively guide students to learn to travel independently in the vast ocean of knowledge and self-development; learn how to dare to say, express their opinions and communicate widely in interpersonal communication , Develop students’ self-learning ability and sense of cooperation. Therefore, in biology teaching,