专题13阅读理解专题现代科技类 -(2018-2022)高考英语真题分项汇编

阅读理解专题13 现代科技类 (2018-2022)高考英语真题分项汇编（全国） 2022年(全国乙卷)Can a small group of drones (无人机) guarantee the safety and reliability of railways and, at the same time, help railway operators save billions of euros each year? That is the very likely future of applying today’s “eyes in the sky” technology to making sure that the millions of kilometres of rail tracks and infrastructure (基础设施) worldwide are safe for trains on a 24/7 basis. Drones are already being used to examine high-tension electrical lines. They could do precisely the same thing to inspect railway lines and other vital aspects of rail infrastructure such as the correct position of railway tracks and switching points. The more regularly they can be inspected, the more railway safety, reliability and on-time performance will be improved. Costs would be cut and operations would be more efficient (高效) across the board. That includes huge savings in maintenance costs and better protection of railway personnel safety. It is calculat