【练习】

1.  There _____ (be) no rain for a long time, most of the crops in this area died from lacking water.(填空练习)

答案:  being

解析:  There being no rain为 there be句型的独立主格形式。

2.Yesterday a street-beggar bought a lottery ticket purposelessly, _____(make)  him a millionaire overnight.(填空练习)

答案: to make 

 解析: 不定式作结果状语表示主语未曾预料到的结果。

3. He hurried to the station,_____the 9:30 train had already left.

A.to find   B.found   C.only to find   D.only finding

答案: C

解析: 本题考查"(only)+不定式"与"-ing形式"作结果状语的区别。"only+不定式"表示该结果在主语的预料之外;接"-ing"形式表示由主句所产生的逻辑上的结果。

4. Which do you enjoy_____your weekends, fishing or watching TV?

A.spending   B.to spend   C.being spent   D.spend

答案: B

解析: 本题考查不定式作目的状语,本题极易误选A。其实 enjoy的宾语为fishing or watching TV。

5. As a result of my laziness, I failed ________ my work intime.

A. and finished    B. to finish      C. and finishing     D. to finished

答案: B

解析: fail to do sth. 固定短语,"没有能够…".A项句子意义不通,D项表达不对.

6. The boy often gives a satisfactory answer to the teacher’s question, _____(think)  just a minute. So he’s usually the teacher’s pet. (填空练习)

答案: having thought

解析: -ing形式短语作状语,且think(思考)表示的动作发生于give a satisfactory answer之前,故用having thought。

【小知识】动词不定式的基本用法

(1)动词不定式在句中作宾语,如带有宾语补足语时,须先用it作形式宾语,而将该动词不定式后置,如:I don’t think it right to do it that way.

(2)作定语:动词不定式作定语时,须位于被其修饰的名词或代词之后,如:Is this the best way to help him?
和定语用的动词不定式如果是不及物动词,不定式后面就要用必要的介词,如:He is the man to depend on.
如果被不定式修饰的名词为place, time, way,不定式后面的介词,习惯上可以省去,如:The old man is looking for a quiet place to live.