光学作图在中考中出现的几率非常大,难度根据命题者总的安排,跨度比较大,有非常容易的,也有一些较难的,下面以2013年中考题为例作一个归类。1.利用光的反射定律作图例1(2013·黄冈市)在汽车驾驶室内,驾驶员通过左右两侧后视镜观察,有看不到的区域(盲区),人或其他车辆应尽量避免进入盲区。如图1,S为驾驶员眼睛位置,MN为左侧后视镜左右两边界点,请作出反射光线NS的入射光线,并标出BM到车左 Optical mapping in the exam there is a very high probability of difficulty according to the total arrangement of the proponent, the span is relatively large, there is a very easy, there are some more difficult, the following 2013 exam questions for example as a classification. 1. Using the Law of Reflection of Light as Example 1 (2013 · Huanggang City) In the cab of a car, the driver observes through the left and right side mirrors and has an invisible area (blind spot), and should be avoided as far as possible Blind zone. As shown in Fig. 1, S is the driver’s eyes position, MN is the left and right boundary points of the left side-view mirror, please make the incident light reflected by the NS and mark the BM to the car left