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根据初中物理新课程标准的要求,光现象命题立足于考察对“双基”知识的认知和理解,立足于考察学生初步的观察能力、应用知识解决简单问题的能力.光现象通常考查运用光的直线传播、光的反射规律折射规律以及平面镜成像性质的相关知识解释有关的光学现象,解决简单实际问题及画出简单的光路图.照相机、幻灯机、放大镜是日常生活中经常使用的技术设备,而透镜是其中的最重要的组成部分,因此与现实生活密切联系的光学知识是中考考查的重要部分.
According to the requirements of the new curriculum standards for junior high school physics, the light phenomenon proposition is based on the investigation of the knowledge and understanding of the “double-base” knowledge, based on the students’ initial observation ability and the ability to apply knowledge to solve simple problems. The light phenomenon is usually examined. The use of light linear propagation, the law of light reflection law of refraction and the related knowledge of the imaging properties of the mirror to explain the relevant optical phenomena, to solve simple practical problems and draw a simple light path diagram. Cameras, slide projectors, magnifiers are often used in everyday life The lens is the most important part of the equipment, so the optical knowledge that is closely related to real life is an important part of the examination.