1. 引言部分：
With the development of society, we have to face a problem that... 随着社会的发展，我们不得不面对一个问题，那就是...
It is universally acknowledged that... 众所周知...
Nowadays, it is common to hear/see... 如今，经常可以听到/看到...
2. 观点陈述：
From my perspective, I believe that... 在我看来，我认为...
I am convinced that... 我确信...
In my opinion/view, we should... 在我看来，我们应该...
3. 论据支持：
There are several reasons for this phenomenon/belief. 这种现象/观点有几个原因。
It is undeniable that... 不可否认...
A heated discussion/debate has taken place on this issue. 关于这个问题，已经进行了热烈的讨论/辩论。
This issue has become a controversial topic. 这个问题已经成为一个有争议的话题。
As far as I am concerned, I think... 就我而言，我认为...
I have several strong reasons for my opinion. 我有几个充分的理由支持我的观点。
4. 其他常用表达：
There is a growing concern over... 人们对...越来越关注。
It is essential to take measures to... 采取必要措施来...
The benefits of... are obvious. ...的好处是显而易见的。
In contrast to..., ...与...形成鲜明对比。
To sum up, ...总的来说，...
希望这些表达对你有所帮助，使你的考研作文更加流畅和专业。