三峡的好处 英语用英语表达三峡大坝的好处、优点、、字数不限 越多越好!

advantages of the three gorges dam
Supporters say the benefits of the project far outweigh the costs.The principal advantage of the project is to generate power to keep pace with China's economic growth.It is estimated that China's power output must rise by 8 percent annually to keep pace
with 6 percent annual increase in gross national product.In practical term,that means the nation's total 1990 power capacity of 130 million kilowatts must grow to 580 million by the year 2015.
Chinese officials note that the dam will relieve the danger of flooding.The Chang Jiang River Valley has been chronically threatened by flooding.For example,in 1954,a flood killed 30.000 people and left one million homeless.In addition,navigation capacities on the river from Yichang to Chongging will be improved,thus,10.000 tons fleets can make direct trips.
Another advantage of the dam is to reduce emissions of sulfur dioxide and carbon dioxide; generating electricity equal to about 40 million tons of coal.China's growing coal consumption poses a huge threat to the environment.Coal burning emits several harmful
air pollution including carbon dioxide (CO2),a major contribution to the global warming.Three quarters of the country's energy comes from coal.China used between 1.1 and 1.2 bn tons of coal in 1993,mostly for heating and generating electricity.Industry source predict China will consume as much as 1.5 to 1.6 bn tons by the year 2000.Sulfur dioxide emissions,which cause acid rain,
are expected to rise from 15.5 million tons in 1991 to 1.4 billion.
In April 1992,the National People's Congress approved the construction of the Chang Jiang River,the world's third largest river,as part of China's 10-year development program.The project has four goals:to prevent flooding of the navigation on the river,and to generate power for the surrounding communities.It consists of three parts:a dam,a hydropower station and navigation facilities.
The impact to international trade is indirect,but nonetheless,important.The construction of the hydroelectric dam requires umerous international inputs,such as machinery and hydraulic equipment.Moreover,the generated power of 17 million kilowatts will be used for industry to boost outputs.The ground breaking began December,1994,but the resettlement of residents had begun two years before that.The full-scale construction is currently underway and the projected completion date is 15 years away in the year 2010.
In April 1992,the plan was formally endorsed by the National People's Congress (NPC).It is believed that the project will alter the entire ecological system and environment in the area.Not only will it divert the river's natural course,but it will also reclaim hundreds of acres of land that is the habitat for many species.