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第1段
1 .<-NARRATOR:-> Now listen to part of a lecture on the topic you just read about.
现在来听一段关于你刚刚读到的话题的演讲。
第2段
1 .<-FEMALE PROFESSOR:-> It would be great if we could stop the lake's salt level from increasing and save its fish and birdpopulations, but the solutions you just read about aren't realistic or practical.
如果能阻止湖水的盐度上升，拯救湖中的鱼类和鸟类种群，那该多好啊，但刚才所提到的那些解决办法既不切实际也不可行。
第3段
1 .First-sure, taking salt out of the lake by desalination would reduce salinity, but it would present some serious problems as well.
首先——当然，通过海水淡化从湖中去除盐分能够降低盐度，但这也会带来一些严重的问题。
2 .For example, as you've read, water pumped into desalination facilities evaporates and leaves behind solid materials that were dissolved in the water.
例如，正如您所读到的那样，被输送到海水淡化设施中的水会蒸发，而留在其中的则是原本溶解在水中的固体物质。
3 .Well, the solid materials that desalination facilities leave behind would pose a health risk.
嗯，海水淡化设施所排出的固体物质会带来健康风险。
4 .The materials would be mostly salt, but they would also include other types of chemicals.
这些材料主要是盐，但还会包含其他种类的化学物质。
5 .Some of the chemicals would be toxic, like selenium.
其中一些化学物质是有毒的，比如硒。
6 .If the wind spreads selenium and other chemicals into the air, and people breathe them in, that would be very dangerous to people's health.
如果风将硒以及其他化学物质吹入空气中，而人们又吸入这些物质，那将对人们的健康造成极大的危害。
第4段
1 .Second, the idea of bringing ocean water into the lake.
其次，是将海水引入湖泊的想法。
2 .Again, this would reduce salinity, but, as you've read, it would require constructing pipelines or canals.
再者，这样做会降低盐度，但正如您所读到的那样，这需要修建管道或运河。
3 .The problem is that the local government may not have enough resources to pay for such major construction.
问题在于，当地政府可能没有足够的资金来承担这类大规模的建设工程。
4 .The nearest shoreline of the Pacific Ocean is 100 kilometers away.
太平洋的最近海岸线距离此处有 100 公里远。
5 .Pipelines or canals are very expensive to build over such long distances.
在如此长的距离内修建管道或运河的成本是非常高的。
第5段
1 .As for the third solution-dividing the lake into sections by building a system of walls-well, that's unlikely to work for very long.
至于第三个解决方案——通过修建一系列围墙将湖泊分割成多个区域——嗯，这种办法不太可能长久奏效。
2 .That's because the Salton Sea is located in a region that experiences frequent and sometimes intense geological activity, like earthquakes.
这是因为萨隆湖所在的地区经常会发生地质活动，有时甚至是剧烈的地质活动，比如地震。
3 .That activity would almost certainly destroy the walls separating the different sections.
这种活动几乎肯定会破坏分隔不同区域的那些墙壁。
4 .So while this solution might work for a short while, the walls would likely collapse the first time there's a major earthquake, and water from the special sections with high salinity will mix back in with the low-salinity water from the main section.
所以，虽然这种解决方案在短期内可能有效，但一旦遭遇大地震，这些墙壁很可能会坍塌。而且，来自高盐度特殊区域的水会与主区域的低盐度水混合在一起。