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6. 前面省略了介词in的-ING惯用法

The two children are busy doing their homework.

Mr. Smith has difficulty fulfilling the task.

There is no use going over the lessons before the night of exam.

He has spent a lot of time preparing the exam for the postgraduate.

Xiao Li lost no time catching up with his classmates.

There is no point arguing with him.

五、 -ING结构作宾语补足语

1. 表示感觉和心理状态的动词，如 hear， feel， find， give， listen to， look at， notice， observe， see， smell， watch等词的宾语可以用-ING作宾语补语

21） “Where are the children？” “I saw in the yard.”

［A］ them to play ［B］ them played ［C］ them playing ［D］ to them playing

22） I must say I don't like to hear you like that.

［A］ talking［B］ to talk［C］ have to talk［D］ talked

2. 表示“致使”等意义的动词，如 catch， have， get， keep， leave， set

I am sorry to have kept you waiting for me so long.

What you have told left me thinking that you experienced much when you were young.

3. 其他动词宾语的补语

23） The average age ［A］ of the Mediterranean ［B］ olive trees grow ［C］ today is two hundred years ［D］ .

六、 -ING结构作状语

-ING结构作状语表示主语在进行一动作的同时所进行的另一动作，它对谓语动词起修饰或陪衬的作用。这时要注意-ING与其逻辑主语在时态、意义上的统一

1. 表示时间和伴随 一般放在句首，有时可放在句中

Coming into the room， I found him sobbing. （=When I came into the room， I found him sobbing.） 在这里coming这一-ING分词动作发生时，紧接着（几乎是同时）发生了谓语动作，有“一……就”的意思。

Pulling his body in the car， he drove away.（=After he pulled his body in the car， he drove away.）

24） Those naughty boys were caught flowers in the garden again.

［A］to steal［B］stealing［C］ having stolen［D］stolen

25） Daniel walked up and down ［A］ as he listened， hands behind ［B］ his back， now and then ［C］ asked ［D］ a question.

2. 表示方式

Being a clever girl， she was sent to college by her father.（此例不可改成：Being a clever girl， her father sent her to college.因为分词短语的逻辑主语不是“her father ”， 而只能是“she ”。）

如果-ING分词所表示的动作与谓语动词所表示的动作同时发生，-ING分词前可以加when，while等连词，可放在句首或句末：When arriving home， he found the door opened. / He listened to the music radio while reading.

26） ，Tony jumped into the river and saved the drowning man.

［A］ Good swimer as he is ［B］ He can swim very well

［C］ Being that he was a good swimmer ［D］ Being a good swimmer