1、Nowadays, there remains an increasing interest in the topic about............................

2、As a saying goes.....................................

衔接句：

The meaning of the saying seems that..................................

中间段:

Three reasons would contribute to this way of thinking.In the first place,.............................What's more,.............................The last but not least,........................

结尾句：

As far as I am concerned,.........................Therefore,do bear in mind:...........................