专题02 完形填空10篇(第一期)-备战2024年高考英语名校模拟真题速递(上海专用)

备战2024年高考英语名校模拟真题速递(上海专用) 第一期 专题02 完形填空10篇 （2023·上海宝山·统考模拟预测）Owing to the recent pandemic （流行病）researchers have been trying to find more ways to kill viruses, and one result of their work involves 1 . It has long been known that ultraviolet（UV）（紫外线的）light can destroy microbes such as bacteria and viruses. It is already used as a cleaning agent in hospitals and to 2 air and water but only when people aren't around. That's because there are three types of UV light: UVA, UVB and UVC． and they are all 3 to humans. UVA and UVB exposure can 4 skin cancer, while UVB is responsible for sunburns. UVC light is mostly absorbed by the Earth's atmosphere, but it is even more dangerous. Artificial UVC light can pass through the outer layer of skin and eye cells to 5 the living cells underneath. 6 , there is a type of UVC light, known as far-UVC, which does not pass through the outer layer of cells. But studies of the long-term effects of far-UVC on humans, 7 studies on groups comprising more than 20 people, are not available. Researcher David Brenner has helped develop a far-UVC light that kills viruses and bacteria. In a normal-sized room, five lamps 8 the number of microbes by 98 percent in less than five minutes. To achieve results like this through ventilation（通风设备）alone, the air would have to be changed 184 times per hour, which is currently 9 . Even at lower settings, the lamps still killed 92 percent of viruses in 15 minutes. Countries vary in their standards for how much UV light people are allowed to be 10 to. Since Brenner's team was operating in the United States, he observed American 11 , which are less strict than those of some countries such as Germany. But even working within Germany's lower limit of UV light exposure, Brenner's lights still decrease the number of microbes 12 . Brenner argues that using the lights, even 13 Germany's regulations, would likely have reduced the