He probably will get the sack.

他可能会因此被开除。

I'll get the sack if things go wrong.

如果出了差错，我会被解雇的。

Unless you work harder you will get the sack.

如果你不加劲干，你就要被解雇。

If you don't study hard, you'll get the sack.

如果你不努力工作，你就会被解雇的。

If you're late again tomorrow, you'll get the sack!

如果你明天再迟到，那就卷铺盖走吧！