什么叫“一鱼两做”呢，就是一条鱼，两种做法。比如鱼头做汤，鱼身红烧...
TOEFL的例子展开也可以这么用，灵感来自于一位我们最近的几次考试的写作都拿到28+的小美女考生。
题目：
Do you agree or disagree with the following statement?
When you have been friends with someone for a long time, it is important to continue your friendship with that person even if he or she does something you do not like.
先来看一下文章的让步段：
Surely, people may feel unhappy when their friends do something they do not like, and it is hard for people to continue their friendship. For instance, my brother’s friend took my brother’s laptop without asking him. Because he thought that they had been friends for a long time, it is no need for him to ask my brother. However, after my brother knew it, he was very angry. He did not like people bring his things without asking. He thinks this behavior is very impolite. So my brother had an argument with his old friends. And they still do not talk to each other for quite a long-period of time. In this light, it is hard for people to maintain friendship with other people who made something that they do not like.
首先从文章结构上来说，第一句是很好的点题，段末还有一个总结。
但是我们这里要强调的是，例子部分用了一个自己编的例子，用的语言是相对直白的，而且还会有些小瑕疵，但这些都不会阻碍你拿到哪怕30的满分。
这个例子从对应性上来说，很好的展开了如果朋友做一些让另外一方不开心的事情，友谊会受到影响的观点。
但这一点依然不是我们今天讲解的重点，前面开始的时候说了，我们今天要强调的是例子的一鱼两做。现在我们来看下下一段：
However, it is 重不重要取决于有米有好处, 所以这里要改为 old friends 之间的矛盾会解决的。【it is rational to think that the conflicts between old friends will sooner or later be resolved 】Since they have experienced and encountered various issues. They know how to have a communication and talk to each other face to face to solve the problem. Telling each other which thing they do not like and which thing they like. In this way, they can understand each other more than before. Take the same example of my brother and his friend. After a long time, they had a communication. My brother told his friend about his feelings and why he behaved like that. Then his friend felt very sorry and apologized to him. Also, his friend promised that he would not do this thing again. After that communication, they became friends again. In this regard, it is better for old friends to find a good way to solve the problem instead of breaking the friendship.
这一段的第一句原先有点瑕疵，不够直接点题。但是要真正强调的是黄色highlight 的部分，这个部分再次利用了上段中的例子。这种一个例子，几处用的方法，有些考生可能会觉得重复了，这一点大可不必担心，因为展开的detail 是不一样的，只是角色相同，和重复是完全不同的概念。
另外，通过一条主线的反复用，让段与段之间内容上的coherence 变的特别好。同时也让文章的易读性得以提升。
所以，如果你在写作的时候也刚好有类似的思路，不妨也一试啊。
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