We'd better hurry or we'll be in for it.

我们最好赶快，不然要受罚的。

You might be in for a shock at the sheer hard work involved.

对所涉及的这些绝对艰难的工作，你也许会大吃一惊。

He will be in for it if he doesn't get home on time.

他如果不准时回家，势必倒霉。

They may be in for a shock.

他们也许会受到震动。

They may be in for some bad weather.

他们可能会遇到一些坏天气。