Nowadays/In recent years/In modern society, 描述问题 ，which has/have been brought into focus/has/have aroused great concern .
The reasons for this phenomenon are varied. Among all these reasons, 原因一plays/play a critical role. Moreover/Furthermore/What s more,原因二. Besides,原因三.(产生这种现象的缘由)
In view of the seriousness of the problem, effective measures must be taken before things get worse. /Considering the seriousness of the problem, it is an urgent thing or us to take effective measures to解决该问题. Firstly/First of all,方法一. Secondly/Moreover,方法二. Thirdly/Besides/In addition,方法三. Only through these ways/Only in this way XXXX
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