09天文和地理 上海2022-2023 高中高三英语专题11选10分类练习题库（含答案）

09天文和地理 A. astonishing B. bordered C. blackouts D. consequences E. constant F. estimated G. exploded H. fascinated I. process J. stretched K. upsetting Aurora(极光): wonders or disturbances Canada, February 2017: I stood in the snow on a frozen lake, watching as the sky twisted in front of me. Green bands of light 31 out in the darkness. Slowly the colours twisted and broke and reappeared elsewhere until, suddenly, a whole band flowed and pulsed across the sky, 32 with delicate yellow, pinks and purples. It was as dramatic as thunderstorm, yet calm. Gentle, yet 33 . Most of all, it was a gift. This was my fifth aurora trip and the first time I had seen fast movements and bright colours. The calm, green auroral displays that many people see are driven by a(n) 34 stream of particles(微粒)from the sun, called the solar wind. But when the sun throws us extra hot, fast particles, this process goes into overdrive—we get much more movement and colour. It is glorious!