动词不定式

典型例题

The next morning she found the man ___ in bed，dead.

A. lying　 B. lie　 C. lay　 D. laying

答案：A. find的宾语后面，用分词或分词短语，起宾语补足语作用。现在分词表达主动，也表达正在进行，过去分词表达被动。

2) to + be 的不定式结构，作补语的动词。

acknowledge, believe, consider, think, declare(声称), discover, fancy(设想), feel, find,　guess, judge, imagine, know, prove, see(理解), show, suppose, take(以为), understand

We consider Tom to be one of the best students in our class. 我们认为汤姆是班上最好的学生之一。

典型例题

Charles Babbage is generally considered　___ the first computer.

A. to invent　B. inventing　 C. to have invented　 D. having invented

答案：A. 由consider to do sth. 排除B、D。. 此句只说明发明这一个事实，不定式后用原形即可。而C为现在完成时，发明为点动词一般不用完成时，且此处也不强调对现在的影响，因此不选C。

3) to be +形容词

seen, appear, be said, be supposed, be believed, be thought, be known, be reported, hope, wish, desire, want, plan, expect, mean

The book is believed to be uninteresting.　人们认为这本书没什么意思。