【练习】

1. It’s said that the Olympic Games _____(hold)  in London in 2012 will cover more events than any other Olympics did.(填空练习)

答案:to be held

解析:hold与the Olympic Games之间是被动关系,且2012奥运会尚未举办,应用不定式表将来。

2.   I listened to the wind, ______ that he would not cometonight.

A. thinking    B. to think    C. thought    D. being thinking

答案: A

解析: 分词作伴随状语.如填C, 前面应有and.不定式表目的或结果,句子意思不通.D 为不正确的表达.

3. The boy lay on his back, his teeth   ______and his glaring eyes  ______.

A.set;looked       B.set;looking  

C.setting;looked     D.setting;looking

答案: B

解析:独立主格结构在句中作伴随状语, teeth 与set两个词之间含有逻辑上的被动关系,所以用过去分词;look这一动作是eyes所发出,所以用looking。

4. All the thing  ______,his proposal is of greater value than yours.

A.considered   B.considering   C.to consider   D.consider

答案:  A

解析: 独立主格结构在句中作状语,因为things与consider之间含有被动关系,所以用过去分词。

5.   ______who she was, she said she was Mr.Johnson's friend.

A.Asking   B.Asked   C.To be asked   D.When asking

答案:  B

解析:分词短语作状语,因为ask与句子的主语(she)之间有被动关系,所以用过去分词。

6. A doctor can expect _____ (call) at any hour of the day or night. (填空练习)

答案: to be called

解析: expect后跟不定式作宾语,call与doctor之间是被动关系。

【小知识】动词不定式的基本用法

(1)作宾语:
①作及物动词的宾语,如:She wishes to be a musician.
②作某些形容词的宾语:可以有动词不定式为宾语的形容词一般有glad, sorry,afraid,pleased, determined, willing,eager, anxious, ready, sure等,如:I am determined to give up smoking.
③动词不定式一般不作介词的宾语,但动词不定式之前如有疑问词时,就可作介词的宾语,如:Can you give us some advice on what to do next?

(2)作宾语补足语,如:Tell the children not to play on the street. 如果句中的谓语动词为see, hear,watch, notice, have,make, let等,作宾语补足语的动词不定式须将to省去,如:I saw a little girl run across the street.