拜读了刘老师和罗老师的有关分析，觉得都有其道理。我从手头的资料中找了几个例句，算是一个补充吧：

▲It is too soon to do sth

It is too soon to reach any definitive judgement. 现在作出最终判断还为时过早。——摘自《牛津英语搭配词典》

It’s too soon to give a definite answer. 要给出一个明确的答复，现在还为时过早。——摘自《柯林斯Cobuild高阶英汉双解学习词典》

It’s still too soon to say whether the operation was a success. 现在说手术是否成功还为时过早。——摘自《朗文当代英语辞典》(2003年第4版)

It is too soon to generalize the study’s findings beyond the study group. 把研究的结果向研究小组以外推广还为时过早。——摘自《麦克米伦高阶美语词典》

So far, he seems to be handling the job well, but it’s really too soon to judge. 到目前为止，他的工作还干得不错，但现在下结论还为时过早。——摘自《剑桥高级英语词典》（第3版）

▲It is too early to do sth

It’s too early to know the outcome of her illness. 现在要想知道她病情的结果还为时过早。——摘自《柯林斯Cobuild高阶英汉双解学习词典》

It’s too early to say whether the show will be a success. 要预测演出是否会成功还为时过早。《朗文当代英语辞典》(2003年第4版)

She considers that it is too early to form a definite conclusion. 她认为现在下确切的结论还为时过早。《牛津高阶英汉双解词典》(第6版)

It is far too early to make sweeping statements about gene therapy. 现在对基因疗法下结论还为时过早。——摘自《柯林斯Cobuild高阶英汉双解学习词典》

▲《朗文当代英语辞典》(2003年第4版)在soon词典将 too soon 作为固定搭配处理，并用 too early 来解释。其相关例句是：

It's still too soon to say whether the operation was a success.

The holidays were over all too soon (=much earlier than you would like).

▲原句意思：It is too early to say what effect, if any, there will be on the workforce. 就算会对劳动力产生一些影响，但现在就说是什么影响还为时过早。