Unit 3 Section Ⅲ Learning About Language--动词-ing形式作主语（Word 教师用书）-【状元桥·优质课堂】2022-2023学年新教材高中英语选择性必修第一册（人教版2019）

Section Ⅲ　Learning About Language——动词­ing形式作主语 1．It was foolish of you to lie to your teacher. 2．It's no use trying to persuade him to change his mind. 3．This is an English­speaking country. 4．In order to arrive there on time, I got up early. [自我感知] 1．句1、2中黑体部分在句中均作 主语 。 2．根据句1、2可知，动词不定式和动词­ing形式作主语时，可以用 it 作形式主语。 3．句3中的动词­ing作 定语 ，句4中的不定式作 状语 。 一、动词­ing的时态和语态 动词­ing通常有以下几种变化形式(以do为例)： 语态 时态　　　 主动语态 被动语态 一般式 doing being done 完成式 having done having been done ►Sometimes being punished may be a good thing. 有时被惩罚可能是一件好事。 ►Having been given a toy car as a gift made the boy laugh. 那男孩收到一辆玩具汽车作为礼物后笑了。 [即时训练1]——完成句子 (1) Being exposed in the sun for a long time does great harm to your skin. 暴露在阳光下太长时间会对你的皮肤造成极大伤害。 (2) Having been bitten by my dog made Linda refuse to play with me again. 琳达已经被我的狗咬了，所以她拒绝再和我玩。 二、句法功能 (一)动词­ing形式作主语 1．动词­ing形式作主语的功能及基本用法 功能：动词­ing形式作主语时，多表示经常性、习惯性的动作，谓语动词多用单数形式。 ►Using cocaine increases the user's heart rate and blood pressure.使用可卡因会加快使用者的心率并使血压升高。 ►Wasting a person's time is the same as killing him for his property. 浪费别人的时间无异于谋财害命。 [易错精点] 意义不同的两个动词­ing形式并列作主语时，谓语动词需用复数形式。 ►Listening to the English tapes and watching English films are good ways to learn English. 听英文磁带和看英文电影是学英语的好方法。 2．形式主语it代替动词­ing形式作主语 ►It is no use talking to him—he won't listen. 跟他谈没有用——他不会听的。 ►It is a waste of time talking about such useless things. 谈论这些没用的事情是在浪费时间。 [名师指津] (1)It is＋adj.＋doing sth It is useless doing sth　　　做某事无用 It is worthwhile doing sth 做某事是值得的 (2)It is a waste of＋n.＋doing sth It's a waste of time doing sth 做某事是浪费时间 (3)It is no＋n.＋doing sth It's no good/no use/no fun doing sth 做某事没好处/没用/没意思 [即时训练2]——单句语法填空 (1)(2019·天津) Learning (learn) to think critically is an important skill today's children will need for the future. (2)(2021·1月浙江)He remembered landmarks, but since he didn't know his town's name, finding (find) a small neighborhood in a vast country proved to be impossible. (3)It's a waste of time trying (try) to per