(单词翻译:单击)
听力文本
Chinese state media say work crews in Tibet are turning the Lhasa River into a series of artificial lakes.
The Chinese government's Lhasa River Project aims to build six dams along a 20-kilometer long stretch of the river.
Media reports say the man-made lakes are designed to help the travel industry, improve water quality, and prevent sandstorms. The project is aimed at creating what Chinese officials are calling a "green environment."
But some critics disagree. Fan Xiao is a Chinese geologist with the Sichuan Geological Society. He told VOA's Tibetan Service that "dams can slow down the river flow and damage the water quality." He calls the dams "problematic," explaining that they will lead to sedimentation, which damages water quality.
He also said the water environment capacity, the amount of water kept in each lake, will decrease and be more easily polluted. He added that "flowing water is much better than still water."
Agricultural Impact
Also known as Kyichu, the Lhasa River provides irrigation and drinking water for Tibetan farmers in nine counties. Work on two major hydropower dams has already affected many farmers. The dams are being built northeast of the city of Lhasa, in Lhundup and Maldro Gungkar counties. The two have an estimated cost of over $1 billion, according to the China Tibet News service.
Earthquake risk
Geologist Fan Xiao also says Chinese officials are ignoring the serious risk of the Lhasa River Project causing earthquakes. Some leading engineers and geologists have linked the 7.9-magnitude Sichuan quake of 2008 with work on China's huge Three Gorges Dam.
According to the China Daily, the Lhasa River Project's first working dam – named "Dam No. 3" -- has already widened the river more than 300 meters. It has also created a water storage capacity of 1.5 million cubic meters.
If all six dams are of about the same size, they could hold about 9 million cubic meters of water in Lhasa Valley when finished.
Environmentalists are concerned about how the remaining construction work will impact Salmon migration.
A China Daily article quoted someone described as Dam No.3's project manager. It said the official promised that the project would not harm the movement of fish.
"The dam gate will open for the fish to propagate in due time; therefore, it won't pose a threat to the ecology of river downstream," the project manager said.
I'm Anne Ball.
词汇解释
1.sandstorm n. [气象] 沙暴；大风沙
His plane made a crash-landing during a sandstorm yesterday.
昨天他的飞机在沙尘暴中紧急降落。
2.problematic adj. 问题的；有疑问的；不确定的
Some places are more problematic than others for women travelling alone.
对独自旅行的妇女来说，有些地方比其他地方更容易出问题。
3.sedimentation n. [矿业][物化] 沉降，[化学] 沉淀
Effluent from the sedimentation tank is dosed with disinfectant to kill any harmful organisms.
沉降池中的废水中加入了消毒剂，以消灭所有有害微生物。
4.propagate vt. 传播；传送；繁殖；宣传 vi. 繁殖；增殖
The easiest way to propagate a vine is to take hardwood cuttings.
繁殖葡萄藤最容易的办法就是采取硬木扦插。
5.downstream adv. 下游地；顺流而下 adj. 下游的；顺流的
Breaking the dam could submerge downstream cities such as Wuhan.
毁坏大坝可能会淹没武汉这样的下游城市。
内容解析
1.Chinese state media say work crews in Tibet are turning the Lhasa River into a series of artificial lakes.
turn into (使)成为，(使)变为，转变为；译为：
He turned those sentences into English.
他把那些句子译成了英文。
They turned the reading room into a laboratory.
他们把阅览室改建成了一个试验室。
2.The dam gate will open for the fish to propagate in due time;
in due time 在适当的时候；适时地，按时地，及时地
Readers and borrowers will be suitably rehearsed in due time.
读者和借书人到恰当的时候,都得好好演习一下。
He arrived here in due time.
他来得正是时候。
参考译文
中国国家媒体称西藏工人正在将拉萨河转变成多个人工湖。
中国政府的拉萨河项目意在在沿河20公里的范围内建造20个大坝。
媒体报道称这些人工湖建造的目的是促进旅游业的发展，改善水质并预防沙尘暴，该项目意在创建中国官方所谓的“绿色环境”。
但一些批评者并不赞同，范晓是四川地质学会的地质学家，他告诉美国之音驻西藏记者，“大坝可以让水流速度放缓并损害水质”，他称这些大坝“存在问题”，并解释称这会导致沉淀，这会损害水质。
他还说水环境容量，也就是每个湖泊所能容纳的水量将会减少，且更容易被污染，他说“流水比静水要好”。
又名Kyichu的拉萨河为西藏9个县的农民提供灌溉和饮用水，两座水利大坝的建设已经影响了很多农民。这些大坝位于拉萨市东北部和林周县和贡嘎县，中国西藏新闻称这两个大坝的成本大约超过了10亿美元。
地质学家范晓说，中国官方忽略了拉萨河项目可能导致地震的严重风险，一些著名工程师和地质学家将2008年四川7.8级大地震归咎于中国庞大的三峡工程。
根据中国日报的报道，拉萨河项目的第一个已经运营的大坝“3号大坝”已经将河流拓宽了300多米，还创造了150万立方米的水储藏容量。
如果6个大坝的规模大小一样，那么一旦建成，拉萨河谷将能容纳大约900万立方米的水。
环保人士担心剩下的建设工作会影响到三文鱼的迁移。
中国日报上一篇文章援引了“3号大坝”一位项目经理的话，称官方承诺该项目不会损害到鱼类活动。
“大坝的门会在适当的时候为鱼类打开，因此这不会损害到下游的生态环境。”
我是安·保尔。
