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听力材料：
Of course, there are some negative consequences of selling fossils in the commercial market, but they have been greatly exaggerated. The benefits of commercial fossil trade greatly outweigh the disadvantages.
当然，在商业市场上买卖化石是有一些负面影响，但是这些负面影响在阅读部分被夸大了。化石买卖的优点大大的超过其缺点。
First of all, the public is likely to have greater exposure to fossils as a result of commercial fossil trade, not less exposure. Commercial fossil hunting makes a lot of fossils available for purchase, and as a result, even low-level public institutions like public schools and libraries can now routinely buy interesting fossils and display them for the public.
首先，私人化石买卖合法之后，公众接触化石的机会不是变少了，而是增加了。私人化石买卖让更多的化石进入流通领域。这样，甚至等级较低的公共机构，比如公立学校和图书馆也有能力通过正规渠道购买化石，并向公众展示了。
As for the idea that scientists will lose access to really important fossils, that’s not realistic either. Before anyone can put a value on a fossil, it needs to be scientifically identified, right? Well, the only people who can identify, who can really tell what a given fossil is or isn’t, are scientists, by performing detailed examinations and tests on the fossils themselves. So, even if a fossil is destined to go to a private collector, it has to pass through the hands of scientific experts first. This way, the scientific community is not going to miss out on anything important that’s out there.
至于说科学家将错失接触重要化石机会的说法，也是站不住脚的。不论是谁，在给一组化石定价之前，都一定是需要科学家来鉴定的，是不是?那么，唯一能够鉴定化石，唯一能够说出化石是否有价值的人是科学家。是科学家通过对细节的检查和测试来决定化石的价值的。所以，即使化石最终归于私人收藏家，但是还是要首先经过科学家的手的。这样，科学团体就不会错过化石上的任何重要信息了。
Finally, whatever damage commercial fossil collectors sometimes do, if it weren’t for them, many fossils would simply go undiscovered because there aren’t that many fossil collecting operations that are run by universities and other scientific institutions. Isn’t it better for science to at least have more fossils being found even if we don’t have all the scientific data we’d like to have about their location and surroundings than it is to have many fossils go completely undiscovered?
最后，私人化石收藏者的确会损坏化石，但是如果没有他们，很多化石就会永远埋在地下了。这是因为大学和其他科学研究机构没有足够多的化石采集项目。对于科学发展来说，能够发现更多的化石比让化石长眠于地下要好，不是吗?尽管我们可能确实一些诸如化石位置其周围伴生化石的信息。
听力部分需要提取的观点是：
- Main point: 私人化石买卖利大于弊。
- Sub point 1: 公众不会失去接触化石的机会，反而更多。
- Sub point 2: 科学家也不会失去接触化石的机会。
- Sub point 3: 尽管化石的珍贵数据可能遭到破坏，但是要好过让大量化石长眠于地下。
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