12-冲刺2023年中考英语首字母填空考前预测（上海专用）.docx

冲刺202 3 年中考英语首字母填空临考押题 （上海专用）12 （ 一 ） Scientists are looking for ways that we can effectively use the light and heat from the sun. One idea that has caught their imagination is solar roads. They are e ____1____ to produce clean and renewable energy. With solar panels （ 控制板 ） on the surfaces, solar roads cost more than traditional roads. However, b ____2____ the functions of traditional roods, they have the panels to receive sunlight and change it into the energy to supply power to homes, factories and street lighting. There are four layers in a solar panel: • Base layer: It is made of insulation （绝缘） material and forms a good grip with the road below this layer. • Middle layer: This is the most important layer. It holds all kinds of power lines connecting all the solar parts in the panel, like LED lights and the heating system. • Top layer: This layer is super-strong glass. It a ____3____ the panel to hold the weight of the heaviest vehicles. • Capping （ 盖子 ） : This is the topmost layer used to offer e ____4____ protection to the solar parts in the panel. The layer must be rough enough to provide the traction for the safety of vehicles. With the smart design, solar roads can successfully charge the vehicles on them. And the roads have inbuilt LED lights to replace the traditional rood signs and lines, which are usually painted and h ____5____ to humans. What ’ s more, the heating systems in the solar roads can take care of the snow