20版英语《高中全程学习方略》外研版必修三Module 6.ppt

Module 6　 Old and New　 The Three Gorges Project The Three Gorges Project (TGP) is located in Sandouping of the Xiling Gorge, consisting of a large dam across a river, hydro-electric power station and navigation structures. It is an exceptionally large water conservancy scheme possessing enormous, comprehensive utilization benefits for flood control, power generation, navigation, breeding of aquatic products and water supply. Initial Timetable: 1993—1997: The Yangtze River was diverted after four years in November 1997. 1998—2003: The first group of generators began to generate power in 2003, and a permanent ship lock opened for navigation the same year. 2004—2009: The entire project is to be completed by 2009, when all 26 generators (with a combined generating capacity of 18. 2 million kw) will be able to generate 84. 7 billion kwh of electricity annually. May 20, 2006 was a historical day for the famous Three Gorges Hydro-electric Project on Yangtze River: the Three Gorges Dam was officially opened, nearly 10 months earlier than scheduled. As the largest reinforced concrete dam in the world, the main dam has concrete poured to 185 meters above sea level, and is 2309 meters long. The construction of the Three Gorges Project was begun in 1994 and the Yangtze River was completely blocked on Nov. 8, 1997 at the Three Gorges when the opening in the diversion canal of the Dam Project was closed. Hence the natural flow of the mighty river at the Three Gorges is cut. The construction of the Three Gorges Project entered the next stage: the construction of the Three Gorges Dam. The Three Gorges Project is the largest hydro-electric power station in the world, with a combined generating capacity of 18. 2 million kw and an annual electricity generation of 84. 7 billion kwh. 三峡工程 三峡工程位于西陵峡的三斗坪, 由一个拦河大坝、水电站和通航建筑物组成。这是一个特大水利枢纽工程, 在防洪、发电、航运、水产养殖、供水等方面具有巨大的综合利用效益。 初步时间表: 1993—1997: 长江在四年后的1997年11月被绕道。 1998—2003: 第一组发电机于2003年开始发电, 并于同 年开放永久船闸