Unit 3 第2课时 Learning About Language-（课件）2022-2023学年新教材高中英语选择性必修第一册【南方凤凰台·5A新学案】人教版

Unit 3　Fascinating Parks 第2课时　Learning About Language ——动词­ing形式作主语 第1页 Unit 3　Fascinating Parks 5A新学案 英语 · 选择性必修第一册 主语 it 动词­ing形式 形式主语 动词不定式短语 精讲精练 Singing to sing His Going exploring to adopt denying is It Being educated saying Reading aloud is very important Going to bed early and getting up early is considered His being late arguing about such questions with them　 Thank you for watching 第1页 Unit 3　Fascinating Parks 5A新学案 英语 · 选择性必修第一册 ① For hundreds of years, looking after reindeer was a way of life for the Sami. ② Being in such a beautiful and wild place makes me feel blessed to be alive. ③ Hiking through the mountains in the pathless Sarek is challenging yet really fascinating. ④ Collecting information about children's health is his job. ⑤ It is no use arguing with him over the problem. ⑥ It is simply a waste of time and money doing something like this. ⑦ It's necessary to discuss the problem with an experienced teacher. 1. 第①②③④句都是动词­ing形式作________。 2. 第⑤⑥句都是用________作形式主语，真正的主语是后面的_________________。 3. 第⑦句是it作____________，真正的主语是后面的__________________。 Ⅰ. 动词­ing形式作主语的用法 1. 直接用在句首作主语 Learning about a language is easier than using it. 学习有关语言的知识比使用它容易。 Working all day made her very tired. 工作了一天使她很劳累。 注意：动词­ing形式作主语，表示一般或抽象的习惯性行为，谓语动词用单数形式。 2. 用it作形式主语，把动词­ing形式后置 ① it is no use doing sth. 做某事没有用处 ② it is worthwhile doing sth. 做某事是值得的 ③ it is a waste of time doing sth. 做某事是浪费时间 ④ it is fun doing sth. 做某事很有趣 ⑤ it is no good doing sth. 做某事没有好处 It is no good/use regretting for the past. 悔恨过去是没用的。 It's useless arguing with them. 跟他们争论是没有用的。 3. 用于“there be”结构中 There is no saying when it will stop raining. 无法断定这场雨什么时候会停。 There is no joking about such matters. 这种事开不得玩笑。 4. 动词­ing形式的复合结构作主语 当动词­ing形式有自己的逻辑主语时，常可以在前面加上一个名词或代词的所有格，构成动名词的复合结构。 His coming to the party made me very excited. 他来参加派对使我很兴奋。 Tom's failing the exam made his parents worried. 汤姆考试不及格使他父母着急。 Ⅱ. 动词­ing形式和动词不定式作主语的区别 动词不定式通常表示一个将来的、具体