2020年全国各地中考英语真题汇编-任务型阅读

任务型阅读 北京卷 This 12-year-old Girl Built a Robot to Find Plastics in the Ocean Anna Du was walking along the beach when she noticed plastics there. She reached down to pick them up, and quickly realized there were many more tiny pieces than she could deal with. It seemed impossible to clean them all up. Du, 12 years old at the time, tried to solve the problem like any good scientist—first, by doing a little research. That’s how she learned that 8 million tons of plastics end up in the oceans every year. Then she got to work building something that could help solve the problem; a remote-operated vehicle(遥控潜水器), or ROV. Her ROV can move through water and find plastics on the ocean floor. The actually cool part of Du’s ROV is the detection(探测) system. She uses a camera along with three different kinds of light to find the plastics. She also uses visible(可见的) light to find unnatural colors that might make the plastics stand out. “She has a very good engineering sense to break down a probl