课堂设疑是教师的基本功之一,是启发学生思维,开拓学生视野,拓展学生思路,争取良好课堂效果的主要教学手段之一。也是获得反馈信息,培养学生交际能力的重要方法之一。而掌握设疑技巧,把握设疑时机又是衡量设疑效果的重要标示。一、设疑时机的选择和设定设疑是为了使学生能较好地理解语言材料的表层信息,并促使学生根据表层信息去进一步思考和理解语言材料的深层的本质的东西。设疑是为了让学生全方位,多角度,快速度地思考和理解语言材料。是为了在课堂上始终控制学生注意力,为了巩固和强化所学知识,为了激发学生对于将学知识的兴趣。因此,设 Teaching in class is one of the basic skills of teachers and one of the main teaching methods to inspire students ’thinking, broaden their horizons, broaden students’ thinking and strive for good classroom results. It is also one of the important ways to get feedback and cultivate students’ communicative competence. It is also an important indicator for measuring the effect of suspicion that grasps the timing of suspicious questioning and grasps the suspicion of doubt. First, to establish the timing of the choice and set the suspect is to enable students to better understand the surface information of language materials, and to promote students to surface information to further thinking and understanding of the deep nature of language materials. It is designed to allow students to think and understand linguistic materials in all aspects, angles and speeds. Is to keep students ’attention in class all the time, in order to consolidate and reinforce what they have learned and to stimulate students’ interest in learning. So, set