Unit 3 Fascinating Parks Discover Useful Structures 动词-ing作主语课件-2025-2026学年高中英语人教版选择性必修第一册

动词-ing形式（一） V-ing作 主语和宾语 Smoking, Parking, Spitting, Littering… Have you ever seen these signs? -ing forms Step 1:Lead in (创设情境) 1. Her hobby is collecting stamps. 2. He found her a charming girl. 3. Checking my watch,I see it’s 7:30am. 4. She enjoys drawing. 5. I found a bag lying on the ground. What are the functions of the –ing form in the sentences? 作表语 作定语 作状语 作宾语 作宾语补足语 1.________(sing) is their hobby. Singing Step4：Presentation & Explanation (展示点拨) Task1: 2.______(do）exercise is the best way to lose weight. Doing Task1: 3._____ (fly) like birds is their dream. Flying Task1: What’s in common? 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 单数 V-ing形式 （一）动词-ing作主语的三种形式： 1. 直接放在句首，表示抽象的、经常的以及习惯性的动作或状态。动词-ing形式作主语时,根据主谓一致的原则,谓语动词使用________形式。但是意义不同的两个动词-ing形式并列作主语时,谓语动词要用_________形式。  (1) Learning to think critically is an important skill today’s children will need for the future. (2) Painting and collecting stamps are his hobbies. 单数 复数 It is no use _________(try) to escape. ________ (try) to escape is no use. Trying trying Task 2: 例： ________ the film is worthwhile. ____is worthwhile _________the film . Seeing seeing Task 2: It _________ computer games is a waste of time. __ is a waste of time________ computer games. Playing playing Task 2: It ______ with friends is pleasant. ___is pleasant_________ with friends . Playing playing Task 2: It 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? it 句尾 It is no use/good doing sth 做……是没有用处/好处的 It is/was worthwhile doing 做……是值得的 It is/was a waste of time doing 做……是浪费时间的 It is pleasant/useless doing… 做……是有乐趣/无用的 2. it在句首作形式主语，动词-ing形式后置作真正的主语，用形容词或名词作表语 3.在there be结构中作主语，常见句型有： (1) There is/was no point(意义) doing 干…无意义 (2) There is no sense in doing 做…没有道理 (3) There is/was no use doing 干…无意义 (4) There is/was nothing worse than doing 没有比…更糟的 (5) There is no doing... 无法……; 不允许…… 【观察思考】 1. Their failing in the examination made them all disappointed. 2. Kate’s leaving made everyone sad. 【探究总结】 动词-ing形式的复合结构作主语时有两种形式: 1.形容词性 　　　　+动词-ing形式; 2.　　　 　+动词-ing形式。 （二）动词-ing的复合结构作主语 物主代词 名词所有格 1.My sister enjoys________（stand）alone on the seashore. standing Task 3: 2.The cat always dreams of ___________(catch)the mouse. catching Task 3: V-ing形式可以做一些及物动词的_____； 也可以做 “动词+介词” 构成的动词短语的_____。 1. My sister enjoys standing on the seashore. 2.The cat always dreams of catching the mouse. 小结： 宾语 宾语 总结：动词­ing为非谓语动词的一种，具有名词性质，可在句中充当________和__________。其构成如下：(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 主语 宾语 doing being done having done having been done not doing (1)喜欢做… (2)花(时间、金钱)做… (3)忙于做… (4)梦想做… (5)值得做… (6)在做…方面有困难 be fond of doing sth spend…(in ) doing sth be busy (in) doing sth dream of doing sth be worth doing sth have difficulty (in) doing 2) V-ing作 动词+介词 构成的短语的宾语 3)v-ing作宾语的常见动词口诀: 考虑建议盼原谅， 承认推迟得想象， 避免错过继续练， 否认完成停欣赏， 不禁介意准逃亡， 不准冒险凭想象。 consider, suggest / advise, look forward to, excuse, pardon admit, delay / put off, fancy avoid, miss, keep /keep on, practise deny, finish, stop, enjoy / appreciate can’t help, mind, allow/ permit, escape forbid, risk, imagine 4）某些动词后既可接不定式（to do），又可接ing形式(doing)，意义差别较大，常见的有： go on to do go on doing 接着做（另一件事） 继续做（同一件事） stop to do stop doing 停下来去做另外的事 停止做某事 remember to do remember doing 记住要做某事 记得曾做过某事 1） 2） 3） 4） forget to do forget doing 忘记要做某事 忘了曾经做过某事 5） 6） regret to do regret doing 很遗憾／抱歉地去做 后悔做了某事 try to do 努力做某事 try doing 试着做某事 ------------------------------------------------------------------------- $