Unit5 First aid Discover useful structures课件-2023-2024学年高中英语人教版（2019）选择性必修第二册

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 主语) (Predicative表语) (Object after a preposition介词后面的宾语) (Attribute定语) (Adverbial状语) (Object complement宾语补足语) 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 2 1) 动词-ing形式作主语 ① 直接置于句首，常表示事物化、抽象化概念。 eg Learning new words is very important for me. 学习新单词对我来说非常重要。 Talking is easier than doing. 说比做容易。 动词-ing形式的功能 ② 用形式主语it，把真正的主语-ing形式移置句尾。但这种句子形式有一定的限制，作表语的只能是某些形容词或少数名词。 eg It is useless trying to argue with Shylock. 和夏洛克争辩是没有什么用的。 It’s worth making the effort. 这事值得去做。 It is pleasant working with you. 和你一起工作很愉快。 常用-ing形式作主语的句型有： It +be +a waste of time doing… 做……是浪费时间的 It is/was no good/use doing… 做……是没益/用处的 It is/was worth/worthwhile doing … 做……是值得的 There is/was no point doing… 干……无意义 归纳 【即学即练】 1.) (play) with fire is dangerous. 2.) (addict) to computer games had a bad effect on his study. 3.) It is no good (regret) for the past. regretting Being addicted Playing 2) 动词-ing形式作宾语，表示动作的对象，或代替it作真正的宾语。 常跟动词-ing形式作宾语的动词： admit, dislike, appreciate, avoid, bear, consider, deny, enjoy, escape, finish, imagine, mind, miss, practice, resist, risk, stand, suggest etc. 有些动词既可以跟动词-ing形式，又可以跟不定式做宾语，但意义有所区别。这类动词有： remember, forget, regret, s