关于能源的问题成为了近年来大家关心的热点问题。很多不可再生能源需要大家去保护，节约。为了帮大家理清写这类作文的思路，我们来看一篇范文：
Ever since early this century, electricity has become an essential part of our modern life. It plays an important role in many fields such as industry, agriculture and the daily life of men. Electricity is a source of energy that makes it possible for the factories to turn out products and for people to create comfortable living conditions, for example.
If there were no electric power, things would be quite different. Machines could not run and people would have to fall back on their hands to produce what is essential for them to keep alive. Traffic would have to stop at night because there would be no lights in the street. A world in darkness would no longer be a pleasant one. In a word, things would be in a mess.
Therefore, we should realize the importance of electricity. As electricity is insufficient in our country, we should be frugal in using electricity. We should make great efforts to produce more electricity.
这篇范文讲的是电。典型的三段论
1. How can we use electricity?
2. What would happen if there were no electricity?
3. We should improve the enery conservation.(节约能源)
从上文中可以看出，有很多关于能源的词汇是我们必须掌握的。
对于这来话题，我们要从一下几方面入手：
1. 此能源用来干什么，也就是回答What can we do by using it?
2. 没有这类能源，世界或者我们的生活会是什么样，也就是回答What would happen if there were no...?
3. 怎样合理利用能源，也就是回答What should we do to improve the enery conservation?
由于作文时间很紧，在审题的同时我们就要在心中认真思考这三个问题，并及时想到有哪些词汇或句子可以为我们所用，给文章增色。最重要的是要有一个大方向-合理利用能源，节约能源。
有了这个框架，在碰到任何关于能源的话题时，我们就不至于手忙脚乱，头脑发懵了。