4. 近年來臺灣第一條大規模興建下頁圖 (四) - (乙)輻射井與(丁)水平式集水管，蒐集上述水資源的河流是哪一條？(2 分)

（三）本題為英文試題，請以中文詳答。 A severe meteorological disaster impacted the Pacific Northwest of the United States and western Canada during late June 2021. The following information shows the regional temperature change and the weather maps. Please summarize and analyze the causes and possible effects of this phenomenon. （summarize the causes：3 marks analyze the causes：8 marks possible effects：4 marks）