“良好的开端是成功的一半。”一堂课的开始对整堂课起着至关重要的作用,所以,导语的设计是不可忽视的环节。从心理学的角度讲,在上课之初,幽默、风趣、富有情趣的课前导语可以吸引学生的注意力,活泼课堂气氛,激发学生学习的兴趣,使学生很自然地进入最佳学习状态,并能 “Good start is half done. ” The beginning of a class plays a crucial role in the whole class, so the design of the lead language can not be ignored. From the psychological point of view, at the beginning of class, humorous, humorous and full-fledged introductory essay can attract the attention of students, lively classroom atmosphere, stimulate students interest in learning, so that students naturally into the best learning state, And can