撰写Introduction的核心思路实际上是：
将讨论范围从“广泛的学术领域”逐渐缩减至“具体的研究目标”。
这一过程就像是通过一个“漏斗形”的结构，从广阔的背景逐步聚焦到具体的话题。
写作策略：
1.总体介绍
For decades, one of the most popular ideas in…research is the idea that…
几十年来,…研究中最流行的观点之一是…
Recent theoretical developments have revealed that…
最近的理论发展表明…
A common strategy used to study… is to…
研究…的常用策略是
This research constitutes a relatively new area which has emerged from…
这项研究是由…产生的一个相对较新的领域。
These approaches have been influential in the field because of
由于…这些方法在该领域产生了影响。
In the past several decades,have played an important role in.
在过去的几十年里,…在…中起了重要的作用。
There are growing appeals for…
有越来越多的人呼吁…
This is the field of study that deals with…
这是研究...的领域
Most of the theories of …are however focused on explaining.
然而,大多数关于...的理论集中于解释...
2.问题定义
This seems to be a common problem in.…
似乎是…的一个普遍问题
This leads to myriad problems in
这导致了…的无数问题
The main problem is that…
主要的问题是…
There is a further problem with…
关于…还有一个更深层次的问题
One primary problem withis that…
关于…的一个主要问题是…
The methods are not without their problems as will be discussed in …
这些方法并非没有问题,我们将在…中讨论这些问题
The foremost problems are the facts that…
最重要的问题是…
3.研究现状
There is no previous research using …approach.
之前没有使用…方法的研究
There has been less previous evidence for…
之前关于…的证据较少
Other studies have failed to…
其他的研究未能证实二
To our knowledge, no study has yielded…
据我们所知,没有一项研究取得了…成果
No study to date has examined…
到目前为止,还没有研究考察过…
Only a few studies have shown…
只有少数研究表明…
However,…has rarely been studied directly
然而,…很少被直接研究
Moreover,few studies have focused on…
