Unit 3 Fascinating Parks Discover Useful Structures v-ing做主语课件-2024-2025学年高中英语人教版（2019）选择性必修第一册

Unit 3 FASCINATING PARKS The -ing form used as subject 1 Listen to a song--Red Lead-in Loving him is like driving a new Maserati down a dead end street Faster than the wind, passionate as sin, ending so suddenly him is like trying to change your mind once you're already flying through the free fall Like the colors in autumn so bright just before they lose it all him was blue, like I'd never known him was dark gray, all alone him was like trying to know somebody you never met But loving him was red him was red Touching him was like realizing all you ever wanted was right there in front of you Memorizing him was as easy as knowing all the words to your old favorite song Fighting with him was like trying to solve a crossword and realizing there's no right answer Regretting him was like wishing you never found out that love could be that strong Loving Losing Missing Forgetting Loving the v-ing form as the subject. 2 Learning Objectives Recognize the v-ing form as the subject in a sentence Summarize the meaning of the v-ing form as the subject. Understand the grammar rule of “It” as formal subject. （理解It作形式主语的语法规则。） 3 1.________(sing) is their hobby. Singing Task1: Observe and Find 4 2.______(do）exercise is the best way to lose weight. Doing Task1: 5 3._____ (fly) like birds is their dream. Flying Task1: 6 The -ing form as the subject Reading aloud is a good way to learn a foreign language. Going to bed early and getting up early is considered to be a good habit. Listening to the English tapes and watching English films are good ways to learn English. 1.动词 -ing 形式作主语，往往表示抽象的、 的动作, 通常直接置于 。单个的动名词（短语）作主语时谓语动词用单数；两个或多个动名词（短语）并列作主语时，如果是一件事谓语动词用______，如果是两件事,谓语动词要用___ 。  Observe and Find 习惯性 句首 单数 复数 Task1: 7 Playing video games a waste of time. is It is a waste of time playing video games. 形式主语 真正主语 Observe and Find Self-study (自主学习) 例: Playing computer games is a waste of time. It is a waste of time playing computers 1. Seeing the film is worthwhile. __ is worthwhile _______ the film. 2. Trying to escape is no use. ____ is no use___________ 3. Playing with friends is pleasant. __is pleasant ________ with friends. 小结：用_____作形式主语，把真正的主语V-ing形式移置____。 Observe and Find trying to escape. seeing playing It It It it 句尾 Playing computer games is exciting. It is exciting playing computer games. ? Task 2: 9 ⑴ It's worthwhile making the effort. ⑵ It's no use crying over the spilt milk. ⑶ It was a waste of time persuading such a person to join us. 覆水难收。 2. 有时可用 it 作 形式主语 前置，真正的主语是-ing形式。但这种句子形式有一定的限制，作表语的只能是某些形容词或少数名词。 adj. n. 10 It is no use/good/fun doing sth 做……是没有用处/好处的/趣味的 It is/was worthwhile doing 做……是值得的 It is pleasant/useless doing… 做……是有乐趣/无用 It is/was a waste of time doing 做……是浪费时间的 Read and Memorize: (读&记忆) 11 be addicted to Observe and Find a waste of time (1) Being addicted to smartphones is a waste of time. (2) Being occupied with our homework all day makes us tired. (3) ______(be) late for class makes the teacher angry. (4) _____(be) in such a beautiful and wild place makes me feel blessed to be alive. (5) ____________ (punish) made the student lose interest in his studies. (6) _____________(bury) in his studies made him forget to eat meals. Being addicted to smart phones is a waste of time. 。 3. 含有be动词的被动短语或者纯be动词短语作主语时，则be改为____ 即可。 being Being Being Being punished Being buried Group work (合作探究) Task1: 4. 动词-ing形式的复合结构作主语 作主语的V-ing形式的复合结构由“sb.'s +doing” 构成， 即 +doing 。动词-ing形式的复合结构实际上是给动词-ing形式加了一个 。 Her coming to help encouraged all of us. 她来帮忙鼓舞了我们所有人。 Mary's being ill made her mother upset. 玛丽病了，这使她妈妈很心烦。 形容词性物主代词/名词所有格 逻辑主语 1)她的迟到使得老板很生气。 ______________ 2)汤姆这么粗心，引来了不少麻烦 ___________________ made the boss angry caused so much trouble. Her coming late Tom’s being so careless Task2: 13 Attention： 1. 动词-ing形式和 都可以用作主语。动词-ing形式往往表示经常的、习惯性的动作或状态,而不定式常表示某次具体的行为。  2. 如果作主语的动词表示被动意义,那么使用____________作主语。 3. 动词-ing的否定形式是在其前面直接加上_____,带有逻辑主语时，not 应放在逻辑主语和-ing 形式之间。 不定式 being done not Singing is my hobby, and to sing at my friend’s birthday party is my dream. Being invited to the evening party is a great honor for me. Not passing the exam made him disturbed.   Our not obeying the school rule will be punished. 14 Summary use a mind map to summarize what we learnt (group work) Task3: V-ing 作主语的被动形式Being done presentation (小组展示) 15 达标检测 ___________ (talk) with your kids heart to heart is very important for their spiritual well being. _______________ (devote) to the cause of education makes him have no time to accompany his family. ____________(ignore) the difference between the two research findings will be one of the worst mistakes you make. He found it no good __________ (say) that again and again. Your _________(fail) the exam will disappoint your parents. It is waste of time _________ (play) computer games. _____________ (be) polite is a good behaviour. ____________ (they) not knowing English brought them a lot of inconvenience. Going to bed early and having breakfast ___________　(consider) to be good habits. Talking Being devoted Ignoring saying failing playing Being Their are considered Practice 16 Self-evaluation Things I can do Evaluation I can concentrate on the lesson 5 4 3 2 1 I can think actively and cooperate well with my teammates 5 4 3 2 1 I can recognize the v-ing form as the subject in a sentence and summarize the meaning of the v-ing form as the subject. 5 4 3 2 1 I can understand the grammar rule of “It” as formal subject. 5 4 3 2 1 I still need more practice . YES NO Homework: 1 2 Finish activity3(P29) Finish the exercises(导学案) Red (Live) Taylor Swift , track 99999, disc 0 235639.67 $$