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课件网) Discovering Useful Structures 新人教选择性必修二 Unit 5 First Aid Learning Objectives Identify the form, meaning, function and structures of the -ing form by using the methods of observation-discovery-induction-practice-application; Rewrite sentences and complete passages using the -ing form; Talk about helping elderly people and avoiding accidents in life using the -ing form. Lead-in： v-ing功能分类 v-ing形式 动名词 现在分词 主语 宾语 表语 定语 定语 表语 状语 宾补 Playing with fire is dangerous. Jim likes jumping in muddy puddles. Her idea is building up a new company. People living there are quite friendly. He really needs a washing machine. The performance was really amazing. Laughing and talking, they went in. I love to watch her performing on the stage. 非谓语动词之V-ing 动词 谓语 非谓语 done doing to do 具有动词的特征 具有名词的特征 具有形容词的特征 具有副词的特征 动名词 现在分词 主语 谓语 表语 宾语 定语 状语 宾补 ing Observe and Discover： 1．As you can imagine, getting burnt can lead to very serious injuries. 2．You can protect the burnt area by covering it with a loose clean cloth. 3．The first and most important step in the treatment of burns is giving first aid. 4．It is best to place burns under cool running water, especially within the first ten minutes. 5．If you see someone choking，first call the emergency services. 6．Remove any clothes using scissors if necessary, unless you see the fabric sticking to the burnt skin. Subject主语 Predicative表语 Attribute定语 Adverbial状语 Object complement宾语补足语 Object after a preposition宾语 宾语补足语 What is the function of the -ing form in each sentence 一、动词–ing 形式的结构 主动语态 被动语态 肯定式 否定式 肯定式 否定式 一般式 doing 完成式 not doing being done not being done having done not having done having been done not having been done 形式 意义 doing having done done being done having been done 主动，与主句谓语动词同时或基本同时发生 主动，先于谓语动词发生 被动 被动，正在进行，一般作原因状语放句首 被动，先于谓语动词发生 动词-ing形式的复合结构有4种： 形容词性物主代词+动词-ing 名词所有格+动词-ing 人称代词宾格+动词-ing 名词+动词-ing 1. Do you mind my/ me/ Jack’s/ Jack leaving now 2. His/ Tom’s winning the first prize last year impressed me a lot. 主语、宾语 宾语 v-ing作主语 单个的动词 -ing 形式作主语时，谓语动词用_____。 多个的动词 -ing 形式作主语时，谓语动词用_____。 1. Placing burns under the cool running water is the most efficient step to stop the burning process. 2. Applying oil to the injuried area is a bad idea. 3. Singing songs and dancing are his hobbies. Observe and Find 单数形式 复数形式 动词-ing形式做主语 （2）动词-ing形式做主语，可放在句首或句末，放在句末时长用it做形式主语。 做……是浪费时间的 做……是没益/用处/乐趣的 做……是没有用的 做……是值得的 做……没有道理 It + is/was +a waste of time doing… It is/was no good/use/fun/pleasure doing… It is/was useless doing… It is/was worth/worthwhile doing … T ... ...
