Unit 5 First Aid Discover Useful Structures 非谓语动词用法课件-2023-2024学年高中英语人教版（2019）选择性必修第二册

UNIT 5 FIRST AID Leading-in Read the sentences below. 1. As you can imagine, getting burnt can lead to very serious injuries. 2. The first and most important step in the treatment of burns is giving first aid. 3. It is best to place burns under cool running water, especially within the first ten minutes. 4. Remove any clothes using scissors if necessary, unless you see the fabric sticking to the burnt skin. 5. You can protect the burn by covering it with a clean cloth. What is the function of the -ing form in each sentence below? (Subject) (Predicative) (Object after a preposition) (Attribute) (Adverbial) (Object complement) 复习动词-ing形式 课本P53，导学案P174 Review of the -ing form Presentation 动词­ing形式 1．动词­ing形式是动词的一种非谓语形式，包括现在分词和动名词两种。 2. 动词­ing形式在句中的语法作用：动名词在句中作主语、宾语、表语和定语，现在分词在句中作状语、宾语补足语、表语和定语。 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. 　 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 having been done 一、-ing形式的结构 not doing being done not being done having done not having done not having been done 二、-ing形式的用法 1．直接位于句首作主语（谓语用单数） Walking is a good form of exercise for both young and old. 二、-ing形式的用法 1．直接位于句首作主语（谓语用单数） Walking is a good form of exercise for both young and old. 1. is her hobby. 阅读是他的爱好。 2. new words is very important for me. 学习新单词对我来说非常重要。 3. is easier than doing. 说比做容易。 Practice time Reading Learning Speaking 2、用it做形式主语，真正的主语是动名词。常用-ing形式作主语的句型有： It + is/was +a waste of time doing… 做……是浪费时间的 It is/was no good/use/fun/pleasure doing… 做……是没益/用处/乐趣的 It is/was useless doing… 做……是没有用的 It is/was worth/worthwhile doing …