2024届高考英语阅读理解五步法专项带练(21)讲义

【选材来源：2024年1月“七省联考”考前猜想卷英语试题】 ①Imagine you can open your fridge,open an app on your phone and immediately know which items will go bad soon.This is one of the applications that a new technology developed by engineers at the University of California San Diego would enable. ②The technology combines a chip(芯片)integrated into product packaging and a software update on your phone.The phone becomes capable of identifying objects based on signals the chip sends out from specific frequencies,in this case Bluetooth or WiFi.In an industrial setting,a smartphone equipped with the software update could be used as a radio frequency identification(RFID)reader. ③The work uses breakthroughs in back-scatter(反向散射)communication,which uses signals already generated by your smartphone and re-directs them back in a format your phone can understand.Effectively, this technique uses less power than the latest technology to generate WiFi signals. ④The custom chip,which is roughly the size of a grain of sand and costs only a few pennies to produce, needs so little power that it can be entirely powered by LTE signals,a technique for wireless broadband communication for mobile devices.The chip turns Bluetooth signals into WiFi signals,which can in turn be detected by a smartphone with that specific software update. ⑤The technology's broader promise is the development of devices that do not need batteries because they can harvest power from LTE signals instead.This in turn would lead to devices that are significantly less expensive that last longer,said Dinesh Bharadia,one of the paper's senior authors. ⑥“E-waste,especially batteries,is one of the biggest problems the planet is facing,after climate change,”Bharadia said. ⑦For future research,the team will integrate this technology into other projects to demonstrate its capabilities,and they also hope to commercialize it,either through a startup or through an industry partner. 1.How does the chip link up with the phone? A.By providing power for