常用于引言段的句型：

1.Some people think that … 有些人认为…

To be frank, I can not agree with their opinion for the reasons below. 坦率地说，我不能同意他们的意见，理由如下。

2.For years, … has been seen as …, but things are quite different now. 多年来，…一直被视为…，但今天的情况有很大的不同。

3.I believe the title statement is valid because… 我认为这个论点是正确的，因为…

4.I cannot entirely agree with the idea that …我无法完全同意这一观点的… I believe…

5.My argument for this view goes as follows. 我对这个问题的看法如下。

6.Along with the development of…, more and more… 随着……的发展，越来越多…

7.There is a long-running debate as to whether… 有一个长期运行的辩论，是否…

8.It is commonly/generally/widely/ believed /held/accepted/recognized that… 它通常是认为…

9.As far as I am concerned, I completely agree with the former/ the latter. 就我而言，我完全同意前者/后者。

10.Before giving my opinion, I think it is essential to look at the argument of both sides. 在给出我的观点之前，我想有必要看看双方的论据。