不定式考点透视
Ι不定式的时态与语态 主动形式：
一般式(to do)表示的动作通常与谓语所表示的动作（状态）同时发生，或是在它之后发生。
1.I want to have a cup of tea. 我想喝杯茶。（同时）
2. We expect him not to come. 我们希望他不来。（之后）
完成式(to have done)表示的动作在谓语动词所表示的动作（状态）之前发生。
She was said to have been rich. 据说她曾经富有过。
进行式(to be doing)表示当谓语动词所表示的动作发生时，不定式表示的动作正在进行。
He pretended to be waiting for someone. 他装着在等人。
被动形式：不定式的被动语态只有一般式(to be done)和完成式(to have been done)。表示不定式的逻辑主语是不定式所表示的承受者时，不定式一般用被动语态。如：
1.He asked to be sent to work in the country. 他要求送到农村去工作。
2. He thought it an hour to have been invited to the party. 他被邀请参加聚会感到很荣幸。
[考例]1) He agreed _____ here but so far he hasn’t turned up yet.
A. having met B. meeting C. to meet D. to have met
2) Having a trip abroad is certainly good for the old couple, but it remains____ whether they will enjoy it.
A. to see B. to be seen C. seeing D. seen
