21 世纪是信息时代，科技进步日新月异。信息技术学科的教学目标就提到要提高学生的信息素养，为未来的 科技进步培养人才。当前很多中学的信息技术课是每周一节课，课时量少，学生不重视，信息技术教师积极性受到打击，信息 技术课堂效率低下。如何提高信息课堂效率，让学生学有所获是一线信息技术教师的常规课题。

In the twenty-first century, which is the information age, science and technology advances rapidly. The aim of information technology teaching is to improve students’information literacy. At present, the course of information technology in many middle schools is arranged once a week. Students do not pay attention to the course, and the teacher’s enthusiasm is hit, leading to the low class efficiency of information technology. Therefore, it is a regular subject for teachers to improve the class efficiency of information technology, so that students can learn and earn.