动名词做主语

1、动词-ing形式作主语和宾语The -ing form as the Subject and Object 动词的 -ing 形式可分为动名词和现在分词两类。 作为动名词，它有名词的基本性质，因此动名词可以在句子中充当主语、宾语、表语，宾语补足语和定语。导入： 1.动名词做主语 (动名词做主语往往表示经常性、习惯性的动作。此时，谓语动词用单数形式) 动名词做主语有三种形式： 动名词在句首直接做主语 It 在句首做形式主语，而动名词短语在后面做真 正的逻辑上的主语 1）形式一 动名词在句首直接做主语 Reading aloud is very important for us to learn

2、a foreign language. Seeing is believing. _(collect) stamps(邮票) is his hobby. Collecting2）It 在句首做形式主语，而动名词在后面做真 正的逻辑上的主语 Going to bed early is considered to be a good habit. It is considered to be a good habit going to bed early . 用下划线画出下面句子的形式主语和真正的主语 It was a waste of time reading that book. It is

3、dangerous standing in the middle of the street. Is it worthwhile arguing with her?改一改： 1. Drinking milk are good for your health. _ 2. Eat too much may make you fat._ 3. Read in the sun is bad for your eyes. _ 4. Traveling by ship is a comfortable. _ 5. It is dangerous stand there. _ isEatingReading

4、standing2.动名词做宾语 动词-ing做宾语的情形： 作及物动词宾语 it作形式宾语，代替动名词 作含有介词的动词短语的宾语 既可接doing 又可接to do 的动词，但意义不同 常接动名词的动词或动词短语 1)作及物动词宾语。 Would you mind opening the window? The girl practices playing the violin every evening. 2)it 作形式宾语，代替动名词。 I found it pleasant walking along the river after supper. Do you consider

5、it necessary trying again? 3）接doing的动词及含有介词的动词短语: 动词：mind, allow, stand, suggest, practise, consider, dislike, enjoy, 含介词的动词短语：feel like, give up, look forward to, keep (on), pay attention to, be used to. 4)接doing 又可接to do 的动词: A 意义基本一样，如like, love, hate, begin,. B 意义明显不一样，如remember, forget, regret,

6、 stop, go on, mean, try. They stopped to talk. 他们停下来开始讲话。 They stopped talking.他们停止讲话。填一填 1. The boy was lucky to escape _(punish). 2. We dont allow _(dive) in the pool. 3. Visitors are not allowed_(enter) the park without a ticket. 4. Would you mind _(close) e window? 5. Please remember _(give) my