They are fortunate to be able to buy such a large a house.

她们真好运，能买那般大的房屋。

但不能说：

They are fortunate to buy such a large house.

■

若想在

am[is, are]

fortunate

后接动态性形容词，则要用进行式或进行式。如：

They are fortunate to have bought such a large house.

她们很好运，买来那般大的房屋。

You are fortunate to be working in London.

你简直好运，能在纽约工作中。

■

若在其中的形容词

be

为过去时（

was, were

），则之后不定式便沒有之上限定。如：

He was extremely fortunate to escape without injury.

他能安然无事地逃离，实在太好运了。

He was fortunate to have had the chance of doing so.

他很好运还有机会那样做。

■

be fortunate

后接不定式与接从句含意稍有不一样：

It is fortunate that

…

的意思是“……是件好事儿”，而“主语

be

fortunate to do sth

”

则注重主语的好运。如：

It’s fortunate for us that he has a rich uncle

他有一位富有的大伯是大家的运势。（如能够替大家借款）

He’s fortunate to have a rich uncle.

他真好运有一位富有的大伯。（很多人沒有）