在there be句型及with的復(fù)合結(jié)構(gòu)中，可以用主動形式表被動意義。

例如：

There is nothing to read. \ There is nothing to worry about.

With so much work to do, Mary cannot but stay at home.

There is nothing doing these days. 這些天沒事干。

I see there’s a good idea planning. 我知道又在打好主意。

在“疑問詞what/which/whom+不定式”結(jié)構(gòu)中，有時以主動形式表被動意義。

例如：The question is which to choose.問題是挑選哪一個。

He will advise you what to do.他會建議你們做什么。

在“too...to...”結(jié)構(gòu)中，用主動形式表示被動意思，此時不定式前面可以加邏輯主語。

例如: The box is too heavy (for me) to carry.這盒子太重了,搬不動。

The room is not enough (for us) to have a meeting in.這個房間不是大到足夠能在里面開會。