请问为什么用现在分词worsening 现在进行时的be+ing的ing就是现在分词吗?、退化的忘记了,§（环境恶化的原因是）is that the public are not fully aware of the importance of environmental protection.§§The reason why the environment is worsening
问题描述：
请问为什么用现在分词worsening 现在进行时的be+ing的ing就是现在分词吗?、退化的忘记了,
§（环境恶化的原因是）is that the public are not fully aware of the importance of environmental protection.
§
§The reason why the environment is worsening
答
这个本身就是表示正在恶化,所以用现在进行时啊~worsen是动词,所以加ing~
the reason是主语,why引导同位语从句,阐述主语的内容~is是系动词~后面是that引导的表语从句~