专题02 阅读理解（说明文+议论文）--2022年春期高二期末英语精准练 解析版.docxVIP

优点英语 专题02 阅读理解（说明文+议论文）--2022年春期高二期末英语精准练 解析版 体裁 话题 主题 建议时间 正答率 说明文 人与社会 冰壶赛场的检测器械的起源以及应用 7分钟 _____/4 【山东省烟台市5月联考】If the ball goes out of bounds in say, a soccer game, it’s up to the referees to call the violation(犯规). But in a high-level curling(冰壶) match, the stones are somewhat self-policing——thanks to the red and green lights atop each one. As long as the curler releases the stone before the front of it crosses the first red line——the “hog line”, the lights will stay green, and play will continue. If you see the red lights come on, that means the curler keeps his/her hand on the handle too long, committing a hog line violation. The shot is disqualified, and the stone is quickly removed so it doesn’t disturb other stones on the curling sheet. The detection system, called “Eye on the Hog”, dates back to the late 1990s, when University of Saskatchewan engineering professor Eric Salt suggested that some of his advanced electrical engineering students invent one for a class project: With his help, they did, and Canadian engineering company Startco improved their design and brought it to market. The Canadian Curling Association soon adopted it for official use, and its popularity grew from there. Basically, there’s a magnetic strip(磁条) fixed beneath the ice slightly behind the hog line. Inside the stone is an electrical circuit(电路), whose current is affected when you’re touching the handle. If you’re still touching the handle when the stone crosses the in-ice magnet, it’ll set off the battery-operated red lights. Release the handle before the stone reaches the magnet and the green lights will flash until the stone gets there. At that moment, the flashing will switch to a steady green to indicate that the release is qualified. This system also explains why the player releasing the stone doesn’t wear a glove on their delivery hand: They’re not allowed to, since gloves are banned access to the touch sensor. Due to the high capacity of Olympic curlers, hog line violation