Unit3 Fascinating Parks V-ing形式作主语课件-2024-2025学年高中英语人教版（2019）选择性必修第一册

动词-ing形式(一) V-ing作 主语 Unit 3 1.To master the basic grammar rules of V-ing form as the subject. (掌握V-ing形式做主语的基本语法规则。) 2. To understand the grammar rule of “It” as formal subject. (理解It作形式主语的语法规则。) 3.动词-ing的时态和语态 4. Put what has been taught into practice. (把所学到的运用到实践中去。) Learning goals: 2 Smoking抽烟, Parking停车, Spitting吐痰, Littering乱丢垃圾… Have you ever seen these signs? -ing forms Step 1:Lead in Step2:Presentation & Explanation (展示点拨) Task1:完成下列练习并作出小结。 1._(sing) is their hobby. 2. _ (do)exercise is the best way to lose weight. 3._ (fly) like birds is their dream. Singing Doing Flying What’s in common (共同点)? Singing is their hobby. Doing exercise is the best way to lose weight. Flying like birds is their dream. 小结: 1._不能作主语,_ 可以作主语,往往表示经常性、习惯性动作,谓语动词用 。 动词 V-ing形式 单数 注意1:动名词v-ing 和不定式 to do 都可以做主语, 它们有什么区别吗? Delivering newspaper is his job.送报纸是他的工作。 To deliver newspaper is his job today.送报纸是他今天的工作。 动名词做主语表示一般的,抽象的行为. 不定式做主语表示一次性的,具体的行为. 注意2: 两个或两个以上的动词-ing短语作主语时,如果表示一件事,谓语动词用单数;如果表示两件或多件事情,谓语动词用复数。 Going to bed early and getting up early good for our health. 早起早睡对我们的健康有好处(早起早睡是一件事) Listening to the English tapes and watching English films _ good ways to learn English. is are 听英文磁带和看英文电影是学英语的好方法。 It is no use _(try) to escape. 1._ (try) to escape( 逃跑) is no use. Trying trying Task 2: 模仿例子变换句型并作出小结: 例: 2._ the film is worthwhile(值得的). Seeing _is worthwhile _the film . It seeing 3. Playing computer games is a waste of time. _ is a waste of time_ computer games. It playing 4. Playing with friends is pleasant(愉快的). _is pleasant_ with friends . It playing 8 It is no use trying to escape. It is worthwhile seeing the film . It is a waste of time playing computer games . It is pleasant playing with friends . 小结:用_作形式主语,把真正的主语V-ing形式移置_。 What’s in common (共同点)? it 句尾 It is no use/good doing sth. 做某事是没有用处/好处的 It is/was worthwhile doing sth. 做某事是值得的 It is/was a waste of time doing sth. 做某事是浪费时间的 It is pleasant/useless doing sth.… 做某事是有乐趣/无用的 Read and Memorize: (读&记忆) It is no use/good doing sth 做某事是_/_的 It is/was worthwhile doing sth. 做某事是_的 It is/was a waste of time doing sth. 做某事是_的 It is pleasant/useless doing sth. 做某事是_/_的 Fill blanks: (填空) It is _/_doing sth 做某事是没有用处/好处的 It is/was _ doing 做某事是值得的 It is/was _doing 做某事是浪费时间的 It is _/_ doing… 做某事是有乐趣/无用的 Fill blanks: (填空) Step 3 动词-ing的时态和语态 1. 构成如下:(以do为例) 主动形式 (do) 被动形式 (be done) 一般式 完成式 否定形式 doing being done having done having been done not doing 2.动词-ing的时态意义 1)动词-ing的一般式多用于表示一般情况,或所表示的动作通常与谓语动词动作几乎同时发生,或发生在谓语动词动作之后。 I enjoy listening to classical music. We had a good time in dancing with them. We are considering buying a new car. 一般情况 同时 稍后 Jack was praised for having done a good deed. 杰克因为做件好事而受到表扬。 2)动词-ing的完成式所表示的动作发生在谓语动词动作之前。 14 Passagetiona 3.动词-ing的语态 动词-ing的主动式表示的是它的逻辑主语是动作的执行者。 动词-ing的被动式表示的是它的逻辑主语是动作的承受者。 He insisted on sending her to hospital. 他坚持要送她去医院 Sorry, I didn’t mean to lose my temper. I just can’t stand being misunderstood. 执行者 承受者 对不起,我不是故意发脾气的。我只是不能忍受被误解。 15 Passagetiona 动词-ing形式作主语 表示经常性或习惯性的动作且常放句首 动词-ing 作 主 语 It’s a waste time doing sth It’s useless/no use/no good doing sth It’s no pleasure doing sth it 作形 式主语 动词原形+-ing 基本构成 基本用法 动词-ing与动词不定式作主语的区别 Summary 小结 16 Step4:Consolidation (巩固达标) Time for Practice 1. (read) in bed is bad for your eyes. 2. _ (talk) with your kid heart to heart is very important. 3. It is no use _(regret) your past mistakes. 4. It is a waste of time _ (play) video games. 5.Climbing mountains (be) really fun. 6.It is no good (cry) over spilt milk. 7. I can't stand (work) with Jane in the same office. 8. It's no use (complain) without taking action. 9.(2019 全国卷 ) (volunteer) just feels so good. 10._(invite) to the party was a great honour to the family. 11. His not (know) English brought him a lot of inconvenience. 12. _ (win) the gold medal in the Olympic Games made her famous overnight. Exercise I .单句语法填空 Reading Talking regretting playing is crying working complaining Volunteering Being invited knowing Having won Exercise II 汉译英 学习英语非常有趣。 2.阅读是扩大(enlarge)你的词汇量的一个好方法。 3. 在教育上多花钱是值得的. Learning English is very interesting. It is worthwhile spending much money on education. Reading is a good way to enlarge your vocabulary. Step5:Homework It is no use/good doing sth _ It is/was worthwhile doing _ It is/was a waste of time doing _ It is pleasant/useless doing… _ 1.默写: _做……是没有用处/好处的 _做……是值得的 _做……是浪费时间的 _做……是有乐趣/无用的 1.默写: 2.金版 巧学活用——用所给动词的适当形式填空/补全句子 ①_ (learn) to think critically is an important skill today’s children will need for the future. ②_ (learn) English as a second language can be a painful experience. ③It’s a waste of time _ (try) to persuade such a person. ④It’s no use _ (complain) without taking action. ⑤_ (未能通过考试) made him very upset. ⑥_ (他又一次迟到) made his teacher very angry. 3.维度一 单句语法填空 1.What we all know is that it’s a waste of time _(play) computer games. 2._(lie) on the beach in summer really makes you feel relaxed. 3.It is no use _(wait) here for a long time.He won’t come tonight. 4.It is acknowledged that swimming _(be) a good sport in summer. 5.It is a waste of time _(try) to persuade him to give up computer games. 6.Of course,_ (enjoy) a nice meal with friends can have a great effect on our spirits. 7._ (get) a high score can make it easier for you to enter a famous university. 8._ (know) basic first aid techniques will help you respond quickly to emergencies. 9._ (invite) to the party was a great honour to the family. 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