【练习】
1.?— Tom enjoys _____ (play) basketball on Sunday afternoons, doesn’t he?
? — Yes, he does. But what his sister enjoys _____(dance) .?（填空练习）
答案：playing； is to dance。
解析：enjoy后常接-ing形式作宾语； what his sister enjoys作主语，is to dance构成句子的谓语。
2. We then listened to the child ________ the article ______ on theblackboard.
A. read, writing ? ? ? B. reading, writingC. to read, written ? ? ?D. read, written
答案：?D
解析：?listen to 意为"听某人做某事"与hear用法相同，其后可以用不带to 的不定式，也可以用动名词。writtenon the blackboard 为过去分词作定语，修饰the article。
3.??His letter, _____(address) to the wrong number, reached me late.?（填空练习）
答案：?having been addressed
解析：?address所表示的动作发生在谓语动词所表示的动作之前，且与letter之间逻辑上存在着被动关系，having been addressed...在句中作非限制性定语。
4.?There are lots of places of interest _____(need; repair) ?in our city.（填空练习）
答案：?needing to be repaired。
解析：?needing to be repaired相当于needing repairing，在句中作定语。另外，require和want也有类似的用法。
5.?When I caught him cheating me, I stopped ＿＿things in his shop.
A.buying?? B.buy?? C.to buy?? D.bought答案：A
解析：当stop后面接不定式时,表示"停下来去做某事"；如果接-ing形式,则表示"停止正在做的事"。
6.— Mum, why do you give me so much popcorn?
? — _____ (kill)the boring time.?（填空练习）
答案：?To kill
解析：?why引导的特殊疑问句通常可用不定式短语来回答。
【小知识】非谓语动词-动词-ing形式的基本用法
（1）作主语：?–ing作主语时，如果其结构较长，可用it作形式主语，而将作主语的-ing后置。如：It isn’t much good writing to them again. It’s no use waiting here.
（2）作表语：Her job is washing and cooking. My hobby is collecting stamps.
（3）作宾语：
①作及物动词的宾语。She likes drawing very much.
②作某些短语动词的宾语。 Mary is thinking of going back to New York.
③ do+限定词（my, some, any, the等）+ -ing，表示“做?事”之意，如：We often do our cleaning on Saturday afternoon. Will you do any shopping on Saturday this afternoon?
④作介词的宾语：Her sister is good at learning physics.
⑤作形容词worth， busy等的宾语：This book is well worth reading. –ing作宾语带有宾语补足语时，要用it作为形式宾语，而将作宾语的-ing后置，如：We found it no good talking like that. Do you think it necessary trying again? ??
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