【本讲教育信息】
一. 教学内容：
动词ing形式（动名词）的形式及用法
1. doing的形式：doing; being done
2. doing做主语，表语和宾语。
3. doing与to do在动词后面做宾语的区别
二. 知识总结归纳：
（一）动词ing形式起名词作用，在语法中也称做动名词．在句中做主语，宾语，表语和定语。它的基本形式有doing; being done。
例句：
1. Parking is difficult in the shopping center of the city.
2. My favorite job is teaching English.
3. His main hobby is collecting stamps.
4. Denying this will be shutting one’s eyes to fact.
5. I suggest you should practise speaking English whenever you can.
6. Hearing what I said, he couldn’t help laughing.
7. Did you see that car being repaired ?
注：to do形式也可以做主语或表语。一般情况下，这两种形式做主语或表语，差别不是很大。但是如果刻意强调某个具体的动作，就用to do 形式，而要表示一般性或泛指的动作则用doing形式。
例如：
1. It is difficult to park in the shopping center at the weekend.
2. My duty is to take care of the baby while she is out.
（二）在一些动词后面只能接动名词做宾语。后面跟doing 做宾语的常见动词有：admit; advise; appreciate; avoid; complete; consider; deny; mention; mind; miss; prevent; delay; enjoy; escape; imagine; postpone; practise; risk; suggest；常见的动名词短语，如：be worth doing; can’t help doing; look forward to doing; go on doing; insist on doing; prefer doing to doing; be busy doing; keep on doing; devote…to doing; spend…in doing; have difficulty in doing; have a good time doing; prevent…from doing
1. I am looking forward to hearing from you soon.
2. He has devoted himself to protecting the wildlife.
3. He is trying to avoid answering my question.
4. The accused man denied ever having met her.
5. He insisted on sending for doctor at once.
6. The film is well worth seeing.
7. You can’t imagine the difficulty we had making a little money.
（三）doing形式的逻辑主语：当强调doing所表达的动作的执行者（逻辑主语）时，需要在doing前面加上物主代词，人称代词宾格，名词所有格或不定代词
例句：
1. I’m surprised at your/you doing it.
2. She insisted on their both accepting the invitation.
3. Do you mind my opening the window ?
4. Your being right doesn’t necessarily mean my being wrong.
5. The children are looking forward to spring coming.
6. He disapproved of that being said about Jane.
7. Mr. Carson complained about Tom and Mary coming to class late.
（四）doing与to do在动词后面做宾语的区别: remember/forget to do：记住/忘记了去做某事
Don’t forget to do sth.=remember to do sth.
regret to do: 遗憾地去做/说regret
doing: 后悔做了某事
mean to do= want to do mean doing 意味着做
stop to do: 停下来去做stop doing 停止/不去做
try to do: 试图/努力/企图去做try doing: 尝试用一种方法做
go on to do 接着去做另一件事go on doing: 继续把事情做下去
例句：
1. Don’t forget to mail this letter tomorrow morning.
2. I don’t remember having said anything of the sort.
3. I regret to say that you have failed in the exam.
suggest的名词4. He tried to walk without a crutch.
5. He went on to tell us about the accident.
【典型例题】
一. 单项选择：
1. While shopping, people sometimes can’t help ____ into buy something they don’t really need.
A. to persuade
B. persuading
C. being persuaded
D. be persuaded
分析：题意为：进店购物，人们有时不得不被购买不想买的东西。can’t help doing 不得不，禁不住做某事。主语people与persuade为被动关系，所以应用being done。
答案：C
2. In some parts of London, missing a bus means ____ for another hour.
A. waiting
B. to wait
C. wait
D. to be waiting
分析：根据句意：错过一班车意味着要再等上一个小时。意味着作某事：mean doing。
答案：A
3. How many of us_____, say, a meeting that is not important to us would be interested in the discussion?
A. attended
B. attending
C. to attend
D. have attended
分析：根据句意：比如说，我们当中参加一个对我们毫不重要的会议的人会有多少人对这个讨论感兴趣呢？us_____, say, a meeting that is not important to us作为动名词短语做of 的宾语。
答案：B
4. —What should I do with this passage ?
—___ the main idea of each paragraph.
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