2022届高三英语培优外刊阅读学案：能源话题.docx

高三英语培优外刊阅读 班级：____________学号：____________姓名：____________ 外刊精选｜ 能源曙光：欧洲或将率先实现可控核聚变？ 近日，欧洲核聚变实验室的科学家宣布，新的核聚变能量世界纪录诞生了。可控核聚变一直是人类渴望征服的科学技术难题。一旦实现，困扰人类世界的能源问题就能找到答案。欧洲科学家的“官宣”究竟意味着什么？核聚变背后究竟有哪些值得你关注的议题？ European Scientists Set Nuclear-Fusion Energy World Record By Aylin Woodward and Jennifer Hiller A device based at a U.K. facility in Oxfordshire has produced the highest sustained nuclear-fusion energy ever recorded. The results of the December 2021 experiment, which generated 59 megajoules of fusion energy for five seconds, "demonstrates we are on the correct path" with regards to nuclear fusion, said Rafael Juárez Mañas, an engineering professor at the National Distance Education University in Madrid. Nuclear fusion, the same process that powers the sun, occurs when hydrogen gases are superheated to form a plasma. The process brings together hydrogen atoms that combine to form helium - and release a tremendous amount of energy at the same time. The Joint European Torus, or JET, in Oxfordshire is a donut-shaped device called a tokamak that can heat gases to 150 million degrees Celsius inside a vacuum. The device uses magnetic fields to hold the plasma away from its walls. What makes JET unique is that it is the only tokamak that can harness a mix of deuterium and tritium. These two types of hydrogen have the potential to help realize the goal of sustained net gain in fusion-energy production. Currently, nuclear power - responsible for about 10% of the world's electricity - is generated by fission, the process of splitting atoms like uranium. But fission creates radioactive waste that can last thousands of years. Fusion doesn't produce such waste or greenhouse gases like carbon dioxide generated by fossil-fuel burning. 【词汇过关】 请写出下面文单词在文章中的中文意思。 1.facility [fəˈsɪləti] n. ______________________