During this time, the agency has required heightened safety measures be implemented at the facility including increased staff presence during patient interactions, increased monitoring of the patient care areas, and increased security measures with respect to visitors at the facility,” it said in a statement.
像require, ask, suggest等等后面的从句常常接省略should的虚拟语气,
此处Require后的从句,被要求的对象肯定会执行,为什么还是要用虚拟语气呢?
1 动词原型式虚拟语气并不是省略should而来的。动词原型的使用早于should do形式,不能本末倒置。
2 require/ask/suggest/order后面的that表示的是要求、建议、命令的具体内容,不是陈述事实。所以要用虚拟语气表示“未必是事实”这层含义。这与要求是否被满足、建议是否被采纳、命令是否被执行等没有关系。(英国英语非正式语体现在在这类that从句中可以用陈述语气,中国英语教学没有涉及这一点。)
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