If i were to choose a job now, i would become a jouralist, an investigative journalist in particular.

这里，now 并不表示“现在的习惯”，也不是“此时此刻”，它仍然表示“将来”（最近的将来）。试想一下：一个发生后马上结束的一次性动作，能理解为“现在习惯发生”吗，只有将来发生（马上发生也是将来），所以，虚拟语气用 were to do 就很自然了。仔细体会下面的例句。

If I were to tell you that I killed him, would you believe me? 

要是我告诉你是我杀了他，你会相信吗？

If I were to ask, would you help me? 

如果我提出请求，你会帮助我吗？

If I were to tell you that you aren't ambitious, how would you refute me?

如果我要告诉你你不够有雄心，你会怎么反驳我？

If I were to ask for leave, would he agree? 

如果我请假，他会答应吗？

If I were to do it, I would soon lose patience. 

要我的话，我早不耐烦了。

If I were to do it, I would do it in a different way. 

假如我去做这件事，我会用不同的方法。

If I were to try anything more, I would take away from what he has experienced. 

如果我还尝试做一些别的，我就拿走他的那份体验了。

Even if I were to tell you they were all wrong, you would not be deterred.

即使我告诉你这一切都是错的，你也不会就此打消念头。

If I were to go abroad, I would go to America. 

假如我要出国，我就会去美国。

If I were to turn up in Bishkek today, I would not be safe. 

如果我今天出现在比什凯克，我的人身安全一定受到威胁。

If I were to see her tomorrow, I would tell her the truth. 

要是我明天真的见到她，我就把真相告诉她。

If I were to ask you to scrub my back, what would you say? 

要是我叫你替我擦背，你会答应吗？

If I were to leave now, I'd lose all my pension benefits! 

如果我现在离开，就拿不到养老金了！

If I were to leave, I wouldn't even know where to go. 

如果我可以走，我不知道该去哪里。