第一段：
第一句： 描述背景 There are various different opinions on the subject of
替换句型： there are widely differing views on the issue of whether or not .
The issue of whether or not is certainly a contentious one .
The past 20 years have seen a dramatic increase in
The past 20 years have seen a considerable increase in
These days , it seems that
第二句： 引入话题 while some people might suggest that ,
替换句型：1. while some still hold to the view that
2. this raises certain question about
3. Despite the arguments of some people that
第三句： 表达观点 I personally believe that
替换句型：1. In this essay , I intend to argue that
2. I would argue that the overall impact of has in fact been negative / positive . Two of the primary drawbacks associated with this trend are as follows .
3. Although there are valid arguments to the contrary , in this paper I will argue that
4. It is my believe that
5. Personally I do not agree with this opinion , for the following reasons
6. However , I am not a believer in the argument that
7. I disagree with this point of view for the following reasons