Unit 3 Fascinating Parks Discover useful structures 课件 -2026-2027学年人教版高中英语选择性必修第一册

该高中英语课件聚焦动词-ing形式作主语的语法知识，通过Lead-in环节分析句子中-ing形式功能导入，从意义、与to do作主语的区别、谓语单复数，到形式主语it的用法、时态语态及复合结构，构建层层递进的学习支架。 其亮点在于通过对比分析（如-ing表泛指习惯与to do表具体一次性的区别）、实例练习（翻译句子“每天读英语很有用，但今天下午读完这本书是不可能的”）培养思维品质，结合形式主语句型等提升语言能力，练习设计有梯度助力学习能力发展。学生能系统掌握语法，教师可高效开展教学。

Unit 3 Fascinating Parks Discover Useful Structures 1.Getting here is quite difficult,so apart from the Sami very few people have ever seen Sarek. Being in such a beautiful and wild place makes me feel blessed to be alive. Identify the function of the-ing form in the sentence below. Lead-in 主语 主语 The V-ing Form as the Subject 动词-ing形式作主语 1.动词-ing形式作主语的意义 Reading aloud is very important in learning English. 大声朗读在英语学习中很重要。 Swimming makes me feel relaxed. 游泳让我感到放松。 总结：V-ing形式作主语表示抽象性的、一般性的动作或状态。 2.动词-ing形式和to do作主语的区别 Reading aloud every morning is a good habit. 每天早上大声朗读是个好习惯。 Learning a foreign language takes time and patience. 学一门外语需要时间和耐心。 To finish the task in one day is impossible. 一天内完成这项任务是不可能的。 To become a doctor requires years of study. 成为一名医生需要多年学习。 总结：v-ing 作主语强调泛指、习惯、抽象；to do 作主语强调具体、一次性、将来/目的 翻译句子 每天读英语很有用，但今天下午读完这本书是不可能的。 Reading English every day is useful, but to finish this book this afternoon is impossible. 3.动词-ing形式作主语时谓语动词单复数 Learning a foreign language takes time and patience. Reading and writing are two different skills.（两件不同的事） Going to bed early and getting up early is a good habit. （“早睡”和“早起”被视为一个整体的生活习惯） 总结：(1).单个V-ing短语作主语时谓语动词用第三人称单数 (2)并列的V-ing作主语时: 若指同一件事、同一个概念或一个整体（如早睡早起、吃喝玩乐），谓语动词用单数; 若指两件不同的事或概念，谓语动词通常用复数。 语法填空 用括号内动词的适当形式填空，并注意谓语动词的单复数。 1. Reading English aloud every morning ______ (be) very useful for your pronunciation. 2. Collecting stamps ______ (bring) him great joy. 3. Reading books and watching movies ______ (be) two different ways to relax. 4. Eating and drinking well (be)important. is is brings are 4.用形式主语it代替动词-ing形式作主语 当动词-ing形式作主语时，常用 it 作形式主语，把真正的主语放到句末。常见句型如下： 当动词-ing形式作主语时，常用 it 作形式主语，把真正的主语放到句末。常见句型如下： It is no use / no good/no fun doing sth. 做某事没用/没好处/没有意思 It is a waste of time doing sth.做某事是浪费时间 It is useless /worthwhile doing sth.做某事是没用/值得的 It is fun / great fun doing sth.做某事很有趣 一、语法填空 用括号内动词的适当形式填空。 1. It is no good ______ (stay) up late every night. 2. It is great fun ______ (swim) in the river in summer. 3. It is worthwhile ______ (read) English aloud every morning. 二、完成句子 1. 和他争论是没有用的。 2. 每天花太多时间玩电脑游戏是浪费时间。 It is no use arguing with him. It is a waste of time spending too much time playing computer games every day staying swimming reading 5.V-ing形式的时态和语态 时态 语态 意义（时间关系） 主动语态 被动语态 一般式 doing being done 动作与谓语动词同时发生，或表示一般性、习惯性动作 完成式 having done having been done 动作发生在谓语动词之前 否定式 not doing / not having done/being done/having been done Reading English aloud every morning helps improve your pronunciation. 每天早上读英语有助于提高发音。 Being praised by the teacher made him very happy. 被老师表扬让他很高兴。· Having finished his homework, he went out to play. 完成作业后，他出去玩。（finish发生在went out之前） Having been told the news, she couldn't help crying. 被告知那个消息后，她忍不住哭了。 e.g.： 用括号内动词的适当形式填空。 1. (work) in this environment is not a pleasure but a suffering. 　 2. ___________(invite) to the party was a great honour to the family. 3. ______ (finish) his work, he turned off the computer and left the office. 4. ______ (punish) by his parents, the boy decided never to lie again. 语法填空 Having finished Having been punished Working Being invited 6.V-ing形式的复合结构作主语 V-ing形式的复合结构作主语的形式为：形容词性物主代词(my,his,her等)/名词的所有格（Tom's、 Mary’s等）＋(not) doing (sth.) His coming late made the teacher angry. 他的迟到让老师很生气。 The students' not finishing their homework made the teacher unhappy. 学生们没完成作业让老师不高兴。 完成句子 1. 他开车太快导致了这场交通事故。 too fast caused the accident. 2. 玛丽没来参加聚会让我们大家都很失望。 the party made all of us disappointed. 3. 我父亲每天早起锻炼身体是一个好习惯。 early to exercise every day is a good habit. His driving Mary's not coming to My father's getting up Homework 完成练习册P80-81的内容 Thank you! $