前苏联教育家苏霍姆林斯基说得好:“教师如果不想方设法使学生产生情绪高昂和智力振奋的内心状态,而只是不动情感的脑力劳动,就会带来疲倦,处于疲倦状态下的头脑,是很难有效地汲取知识的。”因此,在讲一节新课知识时,一个好的教学引入,有利于吸引 Sukhomlinski, a former Soviet Union educator, put it well: “Teachers who are not emotionally-conscious, do not want to find ways to make their students have a state of emotional and intellectual excitement, will be tired and tired Under the mind, it is difficult to effectively learn the knowledge. ”Therefore, in introducing a new lesson knowledge, a good teaching is conducive to attract