Unit 1 Art Discover Useful Structures 课件-2025-2026学年高中英语人教版（2019）选择性必修第三册

Discovering Useful Structures 新人教选择性必修三 Unit 1 Art Learning Objectives By the end of the class, students will be able to: identify and summarize the forms of infinitives as predicatives understand the meaning of infinitives and apply it correctly in specific context raise the awareness of protecting traditional art forms 动 词 { 谓语 非谓语 Lead-in： 判断下列句子中画线部分的动词是谓语动词还是非谓语动词： 1.I like to go to the library today. 2.He came to like English because of his teacher’s encouragement. 4.Those devoted to helping those in need are well worth respecting. 5.We were walking in the street when we met a foreigner looking worried. 6.Walking in the street, we met a foreigner looking worried. 谓语动词 谓语动词 非谓语动词 非谓语动词 非谓语动词 Lead-in： 动 词 { 谓语 非谓语 时态、语态、主谓一致 ｛ to do doing done Lead-in： Lead-in： Watch and answer questions Q1: What are the names of five characters? Q2: What are their functions? Fear, anger, joy, sadness, disgust Their functions are to make Riley fearful, angry, joyful, sad and disgusted. 1.As I play games all day, my eyesight gets worse and worse. 2.Subsequently, I became an influential person. 3.What I like is investing. 4.The good news was that she passed the exam. 5.Perhaps the best way to understand Western art is to look at the development of Western painting over the centuries. 上述句子的句子结构都为： Observe the following sentences and find out predicatives. 主+系+表(SVP) adj.短语 n.短语 v.-ing that从句 to do不定式 1.Do you have anything to eat? 2.The man pretended to be reading a newspaper. 3.I’d like to share with you the sports meeting to be held next week. 4.I am very happy to have helped you decorate your new house. Observe the forms of the infinitive Observe the forms of the infinitive 类别 主动形式 被动形式 时间 一般式 完成式 进行式 / to be done to have done to be doing to have been done 发生在谓语动词之后 发生在谓语动词之前 正在进行 to do 即学即练 1.Do you have anything ___________ (share) with me? 2.Somebody seems ______________ (cry) in the next room. 3.I am so sorry to ______________ (bring) you so much trouble. 4.He doesn’t like ___________________(interrupt) while talking. to share to be crying have brought to be interrupted 常用不定式to do 作表语的情况 观察思考 Judy's dream is to become a real police officer. My goal is to make the world a better place. Her job is to take care of the flowers in the garden. My plan is to climb the mountain. 1.当主语是表示意图、计划、建议、任务、梦想等抽象名词时，后面常接不定式作表语,表示主语的具体内容、目的、期望、预期结果。 常见主语名词:way, intention, purpose, aim, attempt, plan, duty, dream, wish, task等。 Exercise ①我的理想是成为一名律师。 My dream is _____________. ②他的梦想是为贫困家庭的孩子们建立学校。 His dream _________ schools for children of poor families. ③The best way of solving the problems is ______(turn) to your teacher for advice. ④Your major duty at this moment is ______ (have)a good rest. ⑤His ambition is ____ (be) a soldier as brave as his father. to be a lawyer is to set up to turn to have to be 常用不定式to do 作表语的情况 观察思考 ①I am to call him once I reach the airport. 我一到机场就得给他打电话。 ②They are to be married in June. 他们计划于六月结婚。 ③He was to regret the decision for the rest of his life. 他终生都将后悔做出了那个决定。 ④He was never to see his wife again. 他注定再也见不到他的妻子了。 ⑤If we were to offer you more money, would you stay? 如果我们给你加钱，你愿意留下吗？ 2.不定式作表语可以表示计划、安排，注定，义务，可能性，愿望，命令，警告等。 Exercise ①英语演讲比赛计划于下周举行。 The English speech contest is _________(take) place next week. ②最坏的注定要到来。 The worst is __________(come). ③你必须得和他们进行一次面对面的谈话。 You are _________(have) a face-to-face talk with them. ④你要想成功就必须要努力。 If you are ____________(succeed), you must work hard. to take to come to succeed to have 常用不定式to do 作表语的情况 观察思考 All I should do is (to) study harder and harder! The first thing is to show respect. One of the biggest challenges is to memorize new words. The best way to learn new words is to read more. 3.当主语包含定语从句且其先行词为_____或者主语被___________________或形容词________修饰时，其后可接“系动词+不定式”作句子的表语。 all only, last, 序数词 最高级 Exercise ①The first choice he made was _______(go)to the poor village to help the villagers out of poverty. ②The best thing she decided on was _______ (leave) the selfish man. ③All he wanted was _______________. 他只想一个人待着。 ④The least I can do to help is ________________. 我所能帮的最起码的事是借给她一辆车。 to go to leave to stay alone to lend her a car 常用不定式to do 作表语的情况 观察思考 4.以What引导的主语从句，常用不定式作表语，说明主语的内容。 What I want is to go home. What matters most is to concentrate on your favourite things. What I suggest is to ask your friends and teachers for help. 他想要的是解决问题。 常用不定式to do 作表语的情况 5.当不定式作表语，且与主语在逻辑上是动宾关系（即主语是不定式动作的承受者）时，通常用主动形式表示被动意义。 The house is to let. (这房子要出租。) John, rather than you, is to blame for the accident. (这次事故该受责备的是约翰，而不是你。) 常用不定式to do 作表语的情况 6.当句子的主语是不定式时，系动词后可接不定式作表语 To ask him such questions is __________(irritate) him. To see is __________(believe). To hear is _________(obey). to irritate to believe to obey 注意1: 动词不定式作表语省略to的情况 情况一：主语是包含 do 的名词性从句 1. What I did was tell him the truth. 情况二：主语是 All, The (only) thing 2. All you have to do is press this button. 3. The only thing I can do now is wait. 当主语部分包含了实义动词 do 的某种形式（如 do, did, does, done,to do）时，作表语的不定式省略 to。 “有 do 无 to，无 do 有 to” All we need to do is live each day with hope. 我们需要做的就是怀有希望过好每一天。 ______________________________________________________________________________ 注意2: 动词不定式作表语和动词-ing形式作表语的区别 to do作表语强调的是将要、具体的、 发生的动作； doing作表语强调的是抽象的、 发生的动作。 一次性 习惯性 The man’s job today is to paint the wall. The man’s job is painting walls. 即学即练 1. Your task is ________(wash) the curtains. 2. My hobby is ________(collect) stamps. 3. Her best wish is ________(help) her parents live a healthy and happy life. to wash collecting to help Practice and Apply： My goal for this year is ________ (learn) a new language. 2. The only thing we can do now is ________ (wait) for the rescue team. 3. Her wish is ________ (become) a famous pianist. 4. All I want ________ (do) is ________ (help) you. 5. I think it is your brother who is _______ (blame) for the accident. 6. When I saw him at that moment, he seemed_______________(read) a novel.  7. Whether to participate in that competition remains_____________(discuss) and decided.  8. What the boys’ parents told them just now was___________(not play) in the street. It was too dangerous. to learn wait to become to do help to blame to be reading to be discussed not to play 1.His dream is_________________________________________.  他的梦想是有一天能成为一名伟大的足球运动员。 2.Li Hua seemed_________________________before he came here.  李华似乎在来这儿之前就已经感冒了。 3.Her plan_______________________sooner or later.  她的计划迟早是要失败的。 to become a great football player one day to have caught a cold is to be a failure 4.The goal of this activity is________________________________.  这个活动的目的是满足普通人的需求。 to meet the needs of ordinary people Practice and Apply： Thank You ! Discovering Useful Structures 新人教选择性必修三 Lavf60.16.100 $