请教专家老师：
新定义3-35课：
Theword justice is usually associated with courts of law. We might say thatjustice has been done when a man's innocence or guilt has been proved beyonddoubt. Justice is part of the complex machinery of the law. Those who seek itundertake an arduous journey and can never be sure that they will find it.Judges, however wise or eminent, are human and can make mistakes.
There are rare instances when justice almost ceases to be an abstract concept.Reward or punishment are meted out quite independent of human interference. Atsuch times, justice acts like a living force. When we use a phrase like 'itserves him right', we are, in part, admitting that a certain set ofcircumstances has enabled justice to act of its own accord.
When a thief was caught on the premises oflarge jewellery store on morning, the shop assistants must have found itimpossible to resist the temptation to say 'it serves him right.' The shop wasan old converted house with many large, disused fireplaces and tall, narrowchimneys. Towards midday, a girl heard a muffed cry coming from behind on ofthe walls. As the cry was repeated several times, she ran to tell the managerwho promptly rang up the fire brigade. The cry had certainly come form one ofthe chimneys, but as there were so many of them, the fire fighters could not becertain which one it was. They located the right chimney by tapping at thewalls and listening for the man's cries. After chipping through a wall whichwas eighteen inches thick, they found that a man had been trapped in thechimney. As it was extremely narrow, the man was unable to move, but the firefighters were eventually able to free him by cutting a huge hole in the wall.The sorry-looking, blackened figure that emerged, admitted at once that he hadtried to break into the shop during the night but had got stuck in the chimney.He had been there for nearly ten hours. Justice had been done even before theman was handed over to the police.
1)为何不是are humans? instances when 引导定语从句非常难理解instances的时间含义？假如说成instanceswhere则能理解，可否？
2)这个结构quiteindependent of human interference不会剖析，有人说是方法状语，形容词短语作方法吗？但感觉是主语补语，可否？
3)we are admitting 静态动词可以用进行时吗？must have found 我感觉这里只能理解为从目前的角度去推断，而不可以理解为站在过去的角度去推断，不知对否？
1 human在此为形容词，作表语表示主语的性质、特点。为何必须要用名词表示身份、类别或职业呢？《韦氏高阶》对instance的解释之1、 an occasion of something happening。对occasion的解释之1、a special event or time；a particular time when something happens。所以instance作为先行词，用when引导定语从句有哪些很难理解呢？
2 quite independent of human interference 为形容词短语，形容词作状语在本网已经讨论过N次了，你没看到吗？形容词不可以作方法状语。不要滥用主语补足语这个术语。这个形容词短语剖析为随着状语。谓语动作发生时主语所处的状况。
3 你凭什么觉得admit是静态动词？admit的英文解释之1、to say usually in an unwilling way that you accept or do not deny the truth or existence of ，即admit是say的意思，是动态动词。当admit作谓语动词用一般目前时，是由于你说目前这个句子，say的事件发生，你说完句子，动作也就结束。所以一般admit不需要进行体。这和announce，declare一般不需要进行体为同一个道理，即动词本身就是说话，句子结束，动作也结束，这是不需要进行体的道理。不可以由于这类动词一般不需要进行体就误以为它们是静态动词。进行体的用法原则是描述会结束而没有结束的情景。不会结束的情景不需要进行体，这合适静态动词，由于静态动词没结束意义。已经结束的也不需要进行体，这就合适admit，declare，announce这种动词。你这个句子中，当你说“It serves him right.”这句话的同时，你其实就是在承认...=your are saying...，所以这个特定的场所admit用目前进行时是完全可以的。