1.实现动态教学。微课顺应了小学生的年龄和心理需求,能够有效集中小学生的注意力,促使学生参与到英语课堂教学中。如在讲解across,on,in,above,over等介词时,教师可以在微课中借助动画对相关介词进行情境模拟,通过鼠标来对动画人物的前进、倒退、跳跃等一系列动作进行控制,使学生在观看过程中能够 1. To achieve dynamic teaching. Micro-curriculum conforms to the age and psychological needs of primary school students, can effectively focus the attention of primary school students, and encourage students to participate in English classroom teaching. As prepositions such as across, on, in, above and over, teachers can use the animation to simulate the related prepositions in a micro class and control a series of actions such as forward, backward, and jumping of the animated characters through the mouse, So that students can watch the process