怎么就算优质的论文introduction引言？

其实很多同学面对国外的论文写作时都会很忧愁，初次接触科研论文写作的同学疑问更多，那怎么就算优质的论文introduction引言？其实这么看：

一篇好的introduction通常都有如下特征：

1. indicate the topic that the essay is about

2. Describe how the body of the essay is organised

3. Explains the point of writing the essay(The point of writing an essay is usually to argue for a thesis, so you will need to explain what thesis you argue for and how you argue for it-this is called a thesis-statement, and most essay introductions include one)

「Introduction的行文框架可以理解为一个“漏斗结构”，也是一个从较宽泛的学术领域逐渐缩小到你的研究目标的过程」。