used to be前it的含义 - 柯帕斯英语网

It used to be a very prosperous town.

It used to be that any teen who wanted a summer job could get one.

请教老师，it是形式主语？还是虚指代词？为什么？谢谢老师。

It used to be a very prosperous town.

it指前文提及的一个城镇。

It used to be that any teen who wanted a summer job could get one.

it在此为虚指代词，可以翻译为“情况”或者不翻译：以前（的情况是），...。

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It used to be a very prosperous town.

It 是人称代词，指代前文提到的那个地方。

It used to be that any teen who wanted a summer job could get one.

It 仍然是人称代词，指代前文提到的某个情况。

that any teen who wanted a summer job could get one，是 be 的表语从句。

who wanted a summer job，是 any teen 的定语从句。

It used to be that any teen who wanted a summer job could get one.

【翻译】以前的情况是，任何想要在暑期打工的青少年都能得到一份工作。