1、随着社会的不断发展，出现了越来越多的问题，其中之一便是：
Along with the advance of the society more and more problems are brought to our attention, one of which is that……
2、关于是否值得……的问题，一直以来争论不休。当然，不同的人对此可能持 不同的观点。
As to whether it is worthwhile ……, there is a long-running controversial debate. It is quite natural that people from different backgrounds may have divergent attitudes towards it.
3、最近，这种现象引起了人们的广泛关注，有人开始担心……
Recently the phenomenon has aroused wide concern, some people are in alarm that……
4、人类进入了一个历史的崭新的阶段，经济全球化、都市化的速度不断加快，随之给我们带来了很多问题。
The human race has entered a completely new stage in its history, with the increasingly rapid economic globalization and urbanization, more problems are brought to our attention.
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