托福听力练习对照文本第七十七篇

　　Since we've been discussing alternative fuels lately, I wanted to pass on to you some information I read about a new fuel that's been in the news a lot lately.

　　由于近期我们已经讨论过替代燃料，我想传递给你们一些我最近读到的一种上了很多次新闻的新型燃料的信息。

　　It's called A-21. It's composed of water and a chemical known as naphtha.

　　它叫做A—21。它由水和一种被认为是石脑油的化学物质组成。

　　It seems to be a very promising fuel because it's much cleaner than the gasoline that we use today.

　　它似乎是一种非常有前途的燃料，因为它比我们今天使用的汽油要清洁得多。

　　That's not to say that it doesn't pollute, but it is cleaner. A-21 isn't like some other alternative fuels that require completely new types of engines.

　　那并不是说它不会污染，但是它更清洁。A-21不像某些其他的替代燃料那样需要完全新式的引擎。

　　A-21 still works in regular, everyday combustion engines—like the ones in cars—with only minor mechanical modifications.

　　A-21在常规的，日常内燃机——比如汽车里的引擎里依然起作用—只要较小的机械改动。

　　So changing over wouldn't be a big deal.

　　所以(燃料)对换不是什么大事。

　　You may doubt some of these claims as many researchers have.

　　你可能怀疑许多研究人员都有这样的说法。

　　Some people feared that because it contains about 45 percent water it would freeze in the winter.

　　有些人担心由于它包含了大约百分之四十五的水，它可能在冬天冻住。

　　But a small amount of antifreeze was added to it, and that seems to have solved the problem.

　　但是少量的防冻剂被添加进去，而这似乎就解决了问题。

　　A-21 has recently undergone street tests in buses in Reno, Nevada.

　　A-21最近在Nevada的Reno经历了街头测试。

　　So far it seems to work just fine.

　　目前它看来工作良好。

　　This is a good thing, especially in Nevada, because the state government there has passed a law requiring that a large percentage of vehicles in Nevada run on alternative fuels. A-21 should help.

　　这是件好事儿，尤其在Nevada，因为那里的州政府通过了一项法律，要求在Nevada的很大比例的车辆靠替代燃料运转。A-21会有帮助。