不定式的进行式表示的动作(情况)与谓语动词表示的动作同时发生。

　　【例如】

　　He is said to be studying in Harvard.

　　The children appear to be enjoying themselves at the party.

　　Betty happened to be playing in the garden when her teacher called.

　　They are reported to be building another bridge across the river.

　　I'd rather read than watch television; the programs seem( )all the time. (CET-4 1997,1)

　　A) to get worse

　　B) to be getting worse

　　C) to have got worse

　　D) getting worseSeem后面接不定式作宾语。时间状语为“一直”，表明“变坏”的动作一直在进行，因此用不定式的进行式，答案为B。

　　62、不定式的被动式

　　不定式与其逻辑主语之间是被动关系时，要用不定式的被动式。

　　【例如】

　　It is an honor for me to be asked to speak here.

　　She preferred to be given more work to do.

　　Women have become a force to be reckoned with in society.

　　The matter is not to be trifled with.

　　The bank is reported in the local newspaper( )in broad daylight yesterday. (CET-4 2000,12)

　　A) robbed

　　B) to have been robbed

　　C) being robbed

　　D)shavingsbeen robbed

　　report后面一般加不定式作主补，而且根据句意，银行是被抢的，被抢的动作发生在报道之前，所以不定式应用其完成被动式，答案为B。