Unit 5 The Value of Money Discovering Useful Structures 课件-2025-2026学年高中英语人教版必修第三册

该高中英语课件聚焦情态动词（定义、分类、功能等）及过去将来时（“would do”“was/were going to do”），通过歌曲视频填空导入，从歌词中情态动词感知过渡到系统语法讲解，再到单句及语篇练习，构建从感知到应用的学习支架。 其亮点在于情境化导入激发兴趣，通过分类对比（如must与have to主客观差异）、功能辨析（可能性、必要性等）培养思维品质，结合例句解析与分层练习提升语言能力。学生能高效掌握语法应用，教师可依托清晰结构与丰富实例优化教学。

必修三Unit 5 The Value of Money Reading and thinking Unit 5 The Value of Money Discovering Useful Structures 1 At the end of this lesson, you will be able to: 1. identify and figure out the meanings and functions of modal verbs; 2. talk about future events in the past using “would do”& “was/were going to do”. Watch the video and fill in the blanks. Nothing's gonna change my love for you You ________ know by now how much I love you One thing you _____ be sure of I _____ never ask for more than your love Nothing's gonna change my love for you You ________ know by now how much I love you The world _____ change my whole life through But nothing's gonna change my love for you ought to can ought to will may Lead-in 情态动词 1. 情态动词有一定的意义， 大多数情态动词有多个意义。 necessity 必要性 possibility 可能性 obligation 责任 义务 request 请求 advice 建议 intention 意图 2. 情态动词没有人称和数的变化， 即不随主语的不同而变化。 3. 情态动词不能独立使用，须后接动词原形，一起构成谓语。 情态动词的定义 1.只作情态 动词的词 must can could may might 2.作情态动词也 可作实义动词 need dare 3.可作情态动词 也可作助动词 would will should shall 4.具有情态动词 的某些特征 ought to have/has/had to had better used to 情态动词的分类 情态动词的形式 情态动词 否定缩略形式 can could couldn't may mayn’t might mightn’t shall should shouldn’t ought to oughtn’t to 情态动词 否定缩略形式 had better must mustn’t have to will would wouldn’t dare daren’t need needn’t can't shan't had better not won't don’t/doesn’t have to Modal verbs possibility necessity obligation request advice intention can(could更委婉) may(might更委婉) need have to(客观) /must (主观) must/ought to would may should/ought to had better would must can 情态动词的功能 May we ask what you're doing in this country and what your plans are? I can't say that I have any plans. You mustn't worry about that. Could you offer me work here? What are the functions and meanings of these modal verbs? A. necessity B. possibility C. obligation D. request E. advice F. intention 观察下列例句，观察情态动词在句中表示的含义。 1. Oliver believes that with a million-pound bank note a man could live a month in London. 2. Young man, would you step inside a moment, please? 3. Good morning, sir. Would you please come in? 4. May we ask what you’re doing in this country and what your plans are? 5. Well, I can’t say that I have any plans. 6. Well, you mustn’t worry about that. 7. Could you offer me work here? 8. If you don’t mind, may I ask you how much money you have? 9. Well, it may seem lucky to you, but not to me. 10. You mustn’t think we don’t care about you. 11. Oh, no, you’d better not open it. 12. You can’t open it until two o’clock. A. necessity B. possibility C. obligation D. request E. advice F. intention B B B D D D D D E C E C ① He can use the computer skillfully now, but he couldn’t last year. ② Training by oneself in a gym can be highly dangerous. ③ — Can / Could I have a look at your new pen? — Yes, you can. / No, you can’t. ④ That can’t be Mary — she’s in hospital. ⑤ Someone is knocking at the door. Who can it be? ⑥ You can’t be careful enough. can&could (could是can的过去式，语气更委婉) (1) ①句中can表示 ____________。 (2) _______句中can表示可能性，可译为“有可能；有时会”。 (3) ③句中can表示 ____________。 (4) ____________句中can / could在否定句、疑问句中表示推测或怀疑， 译为“___________”。 (5) ⑥句中can’t与____________或too连用，表示“再……也不为过”。 能力 ② 许可 ④ ⑤ 可能 enough 用can / could / be able to填空 1. Samuel, the tallest boy in our class, ______ easily reach the books on the top shelf. 2. _________ you give me a cup of tea, please? 3. —I wonder who that is at the gate. —It _______ be Lisa. She’s always in the library at this time. 4. I ______ swim all the way across the lake，but I ________now. 5. Luckily, he ____________escape from the big fire in the end. can Can/Could can’t could can’t was able to Exercise may&might ① — May I watch TV after supper? — Yes, you may/can. / No, you can’t. ② They may / might be having a meeting, but I’m not sure. ③ If that is the case, you may / might as well try. (1) ①句中may表示____________________。否定回答时，用_______。 (2) ②句中may和might表示_________，______可能性更小。 (3) ③句中______________________________，意为“不妨”。 允许或征询对方许可 can’t 可能性 might may / might as well ＋ 动词原形 Exercise 用may / might 填空 1. They ____________ be having a meeting, but I’m not sure. 2. _____________ we use your typewriter for a little while? 3. ________you have a good journey. may / might May May / Might ① I have to wait here because I have no umbrella with me. ② I must recite the text this morning. ③ — Must we hand in our exercise books today? — Yes, you must. / No, you don’t have to / you needn’t. ④ You mustn’t smoke here. ⑤ Your mother must be waiting for you now. ⑥ Why must you always interrupt me? must & have to ①句中have to和②句中must均表示“_______”，但_______是指说话人的主观看法，而 ________则强调客观需要。 (2) ③句中must所构成的疑问句，回答的否定形式通常为______________或_________，意为“不必要”，而一般不说__________ (④句中mustn’t表示“禁止”)。 (3) ______句中must 常表示有根据的、比较确定的推测（只用于肯定的陈述句），译为 “一定；必定”。⑥句中must表示“_______________”。 必须 must have to needn’t don’t have to mustn’t ⑤ 偏要；偏偏 Exercise 用must & have to 填空 1. There are so many mistakes in his article that he ______ rewrite it. 2. You ______ hurry up or you’ll be late. 3. He_______ be ill. He looks very pale. 4. —Must I be home before eight o’clock? —Yes, you ______./ No, you __________. has to must must needn’t must ① All visitors should / ought to register with the British Embassy. ② He shall have the book when I finish reading. ③ Shall we begin our lesson? ④ Mr Lee asked if he should get his visa on time. ⑤ You should have asked for some help. ⑥ You shouldn’t have told her the news. shall & should & ought to (1) ①句中should表示“___________________”，其同义词是____________； 在疑问句中，通常用_________代替ought to。 (2) ②句中shall在第二、三人称陈述句中表示_________________________。 (3) ③ ④句中shall以及should（shall的过去式），用于第一、三人称作主语的疑问句，用以表示：____________。 (4) ⑤ ⑥句should have done 表示“_____________________________” shouldn’t have done 表示“________________________________”。 义务、责任、建议 ought to should 征求意见 本该做某事（而实际上未做） 本不该做某事（而实际上做了） 威胁, 命令, 警告, 强制, 承诺 Exercise 用shall & should & ought to 填空 1. I am upset that you _________ speak ill of me. 2. _________ we go out for a walk? 3. We _______________attend the meeting for it is important. should should/ought to Shall ①Would you pass me the ball, please? ②She said that she would try her best to help us. ③Each time his mother’s birthday came, he would buy her a present. ④We will do our best to save the child. ⑤Oil will float on the water. will & would (1) ①句中would表示_____________，比will更委婉客气。 (2) ②句中would和④句中的will表示___________________。 (3) ③句中would和⑤句中的will表示______________________。 请求、建议 意志、愿望和决心 习惯性动作或客观真理 Attention: would表示过去的习惯性动作时，暗示现在仍然如此； 而used to表示过去常常做某事，强调现在不是这样了。 My father used to go to work by bike when he was young. 我父亲年轻的时候总是骑自行车去上班。（现在不是这样了） need ① You needn't tell him about it this afternoon. ② — Need I go now? — Yes, you must. /No, you needn't. ③ My bike needs repairing. = My bike needs to be repaired. (1) need作情态动词时，表示“ ____________”。常用于否定句和疑问句中，后接动词原形，否定形式为_________。 (2)由need引出的一般疑问句的肯定回答常用must或have to，而否定回答则常用needn't或don't have to。 (3) need作实义动词时，有________________的变化，有如下搭配： sb. need(s) to do sth. 某人需要做某事 sth. need(s) doing/to be done 某事/某物需要被…… 需要、有必要 need not 时态、人称和数 dare ① If he dare go, I’ll go with him. ② Tom didn’t dare to do it. (1) dare作情态动词时，表示“ __________”。常用于否定句和疑问句中，后接动词原形，否定形式为_________。 (2) dare作实义动词时，有________________的变化，后面可接 ________________ 。 (3) dare 作为实义动词，有如下搭配： dare to do sth 敢于做某事 dare sb to do sth 激某人做某事 敢； 敢于 dare not 时态、人称和数 带to的不定式 had better ① You had better get some sleep. ② You had better not talk with strangers. had better表示“____________”，使用时常缩写为____________， 无人称和数的变化，其否定式一般把not放在had better之______。 最好…… ’d better 后 Complete the following sentences using modal verbs. You’ve been working day and night. You ______ be very tired. 2. —I wonder who that is at the gate. —It _____ be Lisa. She’s always in the library at this time. 3. It is a long time since we met last spring. You _______ often come to see us than ever before. 4. He hasn’t decided where he’s going for my holidays. He _____ go to Australia. 5. Father’s Day is coming. What kind of gift _____ I get to my father? 6. Why don’t you try on this dress? It _____ look nice on you. 7. — Who was the man talking with your teacher? — I’m not sure. It ______ be her brother. must can’t should may shall will might Read the passage and fill in the blanks with suitable modal verbs in the box. may must can ought to might had better would should In the film The Million Pound Bank Note, Henry Adams is stuck in a foreign country without money and friends, and with nowhere to stay. While this situation _____ seem unusual, it can sometimes happen to travellers. In case it happens to you on a trip abroad, what ______ you do? First, and most importantly, you _____stay calm. Fear ____ cause you to become confused. You need to think clearly. Second, you should go to your nearest consulate. They ________ be able to help to some extent. Third, you ______ do well to check with some local charities. They ______offer help to travellers in need. Fourth, you _________avoid getting into trouble. You ______ think that stealing some money or food would help you, but you should not do so. Getting caught ______ ruin your life. may should must can ought to would might had better might would 情态动词+have done 过去本应该...（与实际不同） 1. You could have passed the exam. could have done 表示本可以做某事（实际上没做） 2. Tom, you are too lazy. The work should have been finished yesterday. You ought to have done this exercise more carefully. should/ought to have done 表示本应该做某事（实际上没有做某事） 3. You shouldn't have told her the truth. They shouldn’t/oughtn’t to have let you out of hospital so soon. shouldn’t have done/ought not have done 表示本不应该做（实际做了） 4. He need have hurried to the station. In that case, he wouldn’t have missed the train. need have done 本来需要做某事（实际没有做） You needn't have taken a taxi here, for it was very near to my home. needn’t have done 本不需要做某事（实际上做了） 情态动词+have done（表对过去事情的推测） 1. It must have rained last night, for the road is quite muddy. must have done表示对过去事情的肯定推测，“一定做过某事” 2. There is nowhere to find them. Where can they have gone？ can have done 表示对过去行为的怀疑，用于疑问句 He lost his family in that accident. He cannot have forgotten it. Mary can’t have stolen your money. She has gone home. can’t/couldn’t have done”表对过去事情的否定推测，“不可能做过某事” 3. What has happened to George？ — I don’t know. He may have got lost. may/might have done 对过去事情的推测，“可能已经”,“也许已经” (1)那个测试很容易，他本应该通过的，但却没有。 That test was easy and he but he didn't. (2)作为本地人，你一定去过一些我们知之甚少的地方。 As a native, you some places that we know little about. (3)他或许从没听说过重阳节，但这实际上是我最喜欢的节日。 He Double Ninth Festival, but it is actually my favourite. (4)你本不必订票的，因为这几天动物园免费向公众开放。 You the ticket, for the zoo is open to the public free of charge these days. must have gone to should have passed it might not hear about needn’t have booked Exercise 1.表示在过去某个时间来看，将要发生的动作或存在的状态。 2.过去将来时常用在主句谓语动词为过去时态的宾语从句中。 3.过去将来时句子中有时包含时间状语 the next day，the following week, soon等。 The Past Future Tense 过去将来时 the day after tomorrow two days later next week the next week tomorrow the next/following day tomorrow evening the next evening 一般将来时 过去将来时 will be/do would be/do am/is/are going to be/do was/were going to be/do...(but...) am/is/are about to do was/were about to do ▲ ▲ ▲ ▲ ▲ 过去的过去 过去 过去的将来 现在 (现在的)将来 had done did would do do will do 一般将来时和过去将来时的比较 1. I asked him if Peter would arrive the next day. 2. She told me she was going to post the parcel. 3. We were about to go there when it began to rain. 4. She didn't say when she was coming again next time. 5. I felt nervous because I was soon to leave home for the first time. 6. We were to have been married last year. would/should+动词原形 was/were going to+动词原形 *与would+动词原形相比，was/were going to+动词原形有打算、计划的含义。 was/were about to + 动词原形 go, come, leave, start, meet等动词的过去进行时，表示就过去的某一时刻而言即将发生的动作。 was/were to do; 表示曾经计划做某事，并且从现在看已经实现。 当表示“原计划做某事但是最终未发生”，用was/were to have done. Both “would do” and “was/were going to do” can be talk about future events or intentions in the past. Complete the following sentences that describe the future in the past. 1. Philip bought two tickets for The Phantom of the Opera. He __________ ___________________ (watch) with his girlfriend on the weekend. 2. I was so surprised at the news that David ___________________________ (play) the role of the dinosaur in the play that I gave him a hug out of joy. 3. Lily decided that she ___________________________ (settle) in New York and pursue her dream of becoming an actress. 4. Hey, Timmy. I ________________ (call) you. But now that you are here, I don't have to. 5. The competition was so close that no one was sure who ________________ (win)the Best Actor award 6. Jim is not here right now. He said he ______________________ (be) on duty at the library this afternoon. would watch / was going to watch would play / was going to play would settle / was going to settle was going to call would win would be / was going to be Lavf59.14.100 $