听力填空

本听力材料来自于老托partb，partc，是公认实施有效的听写材料，对于上手托福时间不长的同学非常适合。我曾经一次短时间备考听力提高了7分也归功老托。希望大家和我一样一定要坚持下来噢。相信坚持学习的同学听力上都会有很大的飞跃！

Nopain, no gain.我们的安排是这样的，第一遍用听力软件精听材料（建议做单句听写，听写的时候不要偷看我给的挖空题），然后按照我给的挖空题填关键词，回复后即可看到听力原文和文章精解，我将把难点和易错点oneby one 分析给大家。

回复填空答案格式如下：1____2____3____...et.al.

Since we've been discussing alternative fuels lately, I wanted to pass onto you some information I read about a new fuel that's been in the news a lot lately. It's called A-21.It's ______ of water and a chemical known as ______. It seems to be avery promising fuel because it's much cleaner than the ______ that we usetoday. That's not to say that it doesn't pollute, but it is cleaner. A-21 isn'tlike some other alternative fuels that require completely new types of engines.A-21 still works in regular, everyday ______ engines --- like the ones incars --- with only minor mechanical modifications. So changing over wouldn't bea big deal.You may doubt some of these claims as many researchers have. Some people feared that because it contains about 45 percent water it would freeze in the winter. But a small amount of ______ was added to it, and that seems tohave solved the problem.A-21 has recently undergone street tests in buses in Reno, Nevada. So far it seems to work just fine. This is a good thing, especially in Nevada, because the state government there has passed a law requiring that a large percent age of vehicles in Nevada run on alternative fuels. A-21 should help.

答案原文

【填空答案】

1.composed v. 组成；作曲（compose的过去分词）；著作

2.naphtha n. 石脑油；挥发油；粗汽油

3.gasoline n. 汽油

4.combustion n. 燃烧，氧化；骚动

5.antifreeze n. [助剂] 防冻剂

【听力原文】

Since we've been discussing alternative fuels lately, I wanted to pass onto you some information I read about a new fuel that's been in the news a lot lately. It's called A-21.It's composed of water and a chemical known as naphtha. It seems to be avery promising fuel because it's much cleaner than the gasoline that we usetoday. That's not to say that it doesn't pollute, but it is cleaner. A-21 isn'tlike some other alternative fuels that require completely new types of engines.A-21 still works in regular, everyday combustion engines --- like the ones incars --- with only minor mechanical modifications. So changing over wouldn't bea big deal.You may doubt some of these claims as many researchers have. Some peoplefeared that because it contains about 45 percent water it would freeze in thewinter. But a small amount of antifreeze was added to it, and that seems tohave solved the problem.A-21 has recently undergone street tests in buses in Reno, Nevada. So far it seems to work just fine. This is a good thing, especially in Nevada, because the state government there has passed a law requiring that a large percent age of vehicles in Nevada run on alternative fuels. A-21 should help.

精解译文

【听力精解】

这篇文章又是讲能源的，不过侧重的是转化，有一些化学成分很难记，不过在听力中可以简单的用缩写代替，知道它是固体气体或者液体就可以了，把那些甲烷、二氧化碳等一些简单又出现率高的词背下来即可。

minor mechanical modifications -modify修改的变形，意思是 细微的机械修改

undergone 为undergo的过去分词，意为经历

vehicles 在托福中是出现频率很高的词，就是 车辆（vehicle的复数形式）交通工具 的意思，作文里可以代替cars

【参考译文】

因为我们最近一直在讨论替代燃料，我希望到您传递一些信息，我约了一个新的燃料，这在最近的新闻上经常出现。它被称为一个21.它的水和石脑油已知的化学组成。这似乎是艾弗里有前途的燃料，因为它是比清洁汽油，相比我们现在用的。这并不是说，它不污染，但它是清洁。一个-21不像其他一些需要引擎.A-21完全新类型的替代燃料，仍然工作在定期，日常内燃机---一样的在车里---只有轻微的机械改造。所以更换不会是大问题.你可能怀疑这些索赔许多研究者。一些人们感到担忧，因为它包含了约45％的水会冻结在冬天。但加入少量的防冻液，它似乎有机会上解决的i.A-21最近发生在内华达州里诺市的巴士街头测试。所以目前似乎工作得很好。这是一件好事，尤其是在内华达州，因为州政府已经通过了一项法律，规定，在内华达州的的大概率车辆替代燃料运行。A-22应该有所帮助。

祝大家每天进步一点点！

AmyLee