2020届人教版高三英语二轮复习课件：第一部分专题三第三节 说明文(共55张PPT)

专题三　完形填空 第三节　说明文 (2019·全国卷Ⅲ)The small town of Rjukan in Norway is situated between several mountains and does not get direct sunlight from late September to mid­March—__41__six months out of the year. “Of course，we__42__ it when the sun is shining，”says Karin Ro，who works for the town's tourism office.“We see the sky is__43__，but down in the valley it's darker—it's like on a__44__day.” But that__45__when a system of high­tech__46__ was introduced to reflect sunlight from neighboring peaks(山峰)into the valley below.Wednesday，residents(居民)of Rjukan__47__their very first ray of winter sunshine：A row of reflective boards on a nearby mountainside were put to__48__．The mirrors are controlled by a computer that__49__them to turn along with the sun throughout the__50__and to close during windy weather.They reflect a concentrated beam(束)of light onto the town's central__51__，creating an area of sunlight roughly 600 square meters.When the light __52__，Rjukan residents gathered together. “People