17 阅读理解之说明文精练精析15篇-2023年高考英语语法重难点复习百题斩

2023年高考英语语法重难点复习百题斩-阅读理解之说明文 （2022·江西省乐平中学高三开学考试）Noisy brothers or sisters? Loud construction right outside your window? A flexible new loudspeaker could help you rest easy. It could someday turn your walls into noise-canceling systems. And when you’re ready to liven things up, use the same wallpaper—or the surfaces of other ordinary objects in your room—to play music. The new loudspeaker is super thin—about as thick as a few sheets of paper. It’s lightweight and flexible enough to stick to most surfaces. And you can make it big, as in wall-sized, notes Jinchi Han. He’s an electrical engineer at the Massachusetts Institute of Technology in Cambridge. Lots of dome-shaped (圆顶状) microstructures cover the surface of the speaker. The researchers start with a thin, flat sheet of some material. Then they use pressure to pull that material through openings to create the dome shapes. When squeezed, the material they use creates an electric charge. But applying an electric field across the mate