Unit 5 Period 3 Discovering Useful Structures 含交互式动画（课件）英语人教版必修第三册

Unit 5 人教版必修第三册 The Value of Money Discovering useful structures Modal Verbs and Future Events in the Past Contents Contents 1. Lead in 2. Modal Verbs 3. Future Events in the Past 4. Summary 5. Homework Learning Objectives At the end of this lesson, you will be able to: 1. identify and figure out the meanings and functions of some modal verbs (情态动词）. 2. talk about future events in the past(过去将来时)using “would do” and “was/were going to do”. 01. Lead in Watch the video and fill in the blanks. Lead in 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 loveNothing'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 They are called modal verbs. They are used to express ability, obligation, possibility, intension, request, advice, etc. may 02. Modal Verbs 1. You needn’t try it if you don’t want to. 2. The man can speak two foreign languages. 3. The poor boy had to face the problem bravely. 情态动词 (Modal verb) 情态动词的定义 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。 1.只作情态动词的： 2. 可情态可实义的： 3. 可情态可助动词的: 4. 相当于情态动词的: can/could, may/might, ought to, must need, dare shall/should, will/would have to, had better, used to 情态动词的分类 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 情态动词的形式 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. May we ask what you’re doing in this country and what your plans are? 4. Well, you mustn’t worry about that. 5. Well, it may seem lucky to you but not to me! 观察下列例句，观察情态动词在句中表示的含义。 能力 请求 许可 禁止 可能性 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 情态动词的用法 情态动词的用法 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. 1. can和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 情态动词的用法 2. may和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 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 Exercise 情态动词的用法 3. must 和 have to I must recite the text this morning. 1.表示“必须；不得不”，must侧重主观，have to侧重客观。 Your mother must be waiting for you now. I have to wait here because I have no umbrella with me. — Must we hand in our exercise books today? — Yes, you must. / No, you don’t have to / you needn’t. 2.在回答must的问句时，否定回答通常用needn't或don't have to (mustn't表禁止，不表义务)。 3.must表示非常有把握的推测，仅用于肯定句中。 4.must表示非得、偏偏。 Why must you always interrupt me? 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. 2. He_________ be ill. He looks very pale（脸色苍白的）. 3. —Must I be home before eight o’clock? —Yes, you ______./ No, you __________. has to must must needn’t must Exercise 情态动词的用法 4. shall & should & ought to 1. 用于一、三人称的疑问句中, shall用来征求对方的意见。 “…好吗？要不要…？” eg: Shall I open the window for you? 2. 用于二、三人称的陈述句中, 表说话人命令、警告、允诺等口吻。 eg: You shall do as I say. He shall be punished. (威胁） 【即学活用】写出下列句中shall的含义 (1) You shall fail if you don’t work harder. ( ) (2) You shall get an answer from me tomorrow. ( ) (3) You shall be punished for what you’ve done. ( ) (4) Shall I watch TV for a while? ( ) 警告 允诺 威胁 征求意见 should/ought to 1.表示义务或责任:“应该” eg: You are older brother. You should/ ought to take care of your little sister. 2.表示建议或劝告: “可以，应该” eg: You should/ought to try your best to better your performance. 3.表示猜测推断, 有一定根据的推测，合乎理想的情况：“按道理应该” eg: It’s 9 o’clock. Jack should/ought to be in the office. 4.should的特殊用法：表示出乎意料、惊讶的口气：“竟然”“居然” eg: It's strange that he should come so late. 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 Exercise 5.will & would 1.表示意愿、意志、决心 If you will help me with my English, I will study hard. 2.表示请求或征求意见在疑问句中，用于第二人称，would比will语气更委婉 Will/Would you please give me a hand? 3.表示习惯性倾向性的动作，“总是，常常” When I was a child, my mother would read me a story every night.3. 4.表示事物的固有性质 The door won’t open. 6. need 1. 作情态动词，表示“需要”, 无时态与人称的变化 need do sth 否定： need not do sth eg：I need your help. She need not any help. 2. 作实义动词，有时态与人称的变化 need+n need to do sth 否定： don’t/doesn’t/ didn’t need to do sth 特殊用法：need V-ing=need to be done Lily needs more money to pay for that book. Lily needed more money to pay for that book at that time. Lily doesn’t need any more money to pay for that book. 7. dare 1. 作情态动词，通常只用于否定句、疑问句以及if或whether之后，一般不用于肯定句。无人称变化，有过去式dared dare not do sth 不敢做某事 eg: Dare you tell her the truth? I dare not ask her this question. 2. 作实义动词， 有人称与时态的变化 dare to do sth 敢于做某事 don’t / doesn’t / didn’t dare to do sth 不敢于做某事 eg: She dares to go alone. She doesn’t dare to go alone. 8. had better had better表示“最好”，其缩写为“’d better”，表示“最好做某事”。 It’s very cold outside. You’d better put on more clothes. 外面很冷，你最好多穿些衣服。 He warned me that I had better not say anything about it. 他警告我对此事最好只字不提。 结构 说明 had better的基本式 had better意为“最好”“应该”，后接动词原形。 had better的否定式 通常将not置于had better之后。 had better的疑问式 通常将had置于主语之前。 had better+完成式 表示最好做完某事或本该做某事而未做。 功能 情态动词 能；会（能力） 可能；可以（许可） 义务；责任（建议） 禁止（建议） （委婉）建议 必须；不得不 情态动词 否定式 没必要 （建议） 请求 需要 敢于 打算；意愿 can ,could should , ought to, had better will, would(总是要） need(to) may,can/could,will/ would,should shall(第一人称） The functions of modal verbs may,might,can,could must, should, ought to must(主), have to(客) don’t have to ,needn’t dare(to ) mustn’t 不准 1.Find modal verbs in previous sections and discuss their functions. 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 2. 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 03. Future Events in the Past 过去将来时的定义 定义：过去将来时表示从过去的某一时间来看将来要发生的动作或呈现的状态。 基本结构： 1) would/should +V原形 2) was/were going to+V原形 3) was/were to + V原形 4) was/were about to + V原形 5) was/were +V-ing 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 begin 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. would be/do 从过去某一时间看将要发生的动作或存在的状态（常用于宾从） was/were going to be/do...(but...) ①过去的打算；②在过去看来有迹象表明将要发生的动作或存在的状态。但因外界干扰而中断，后常有but出现。 was/were about to do 在过去看来将要发生的动作，不与时间状语连用。 was/were doing come,go,leave,start,arrive... The Past Future Tense Exercise 1．莉莉说晚上将有一场音乐会。 Lily said there _____________that evening. 2．她确信她会成功。 She was sure she ． 3．我想知道我们什么时候出发。 I wanted to know when we ． 4．他说运动会就要开始了。 He said the sport meet ． 5．他说他今晚要走。 He said he tonight. would/was going to be a concert would succeed were going to set off was about to begin was leaving Use “would do” and “was/were going to do”Complete the following sentences. 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 04. Summary Summary 过去将来时基本结构： 1) would/should +V原形 2) was/were going to+V原形 3) was/were to + V原形 4) was/were about to + V原形 5) was/were +V-ing 情态动词 05. Homework （过去将来时：was going to do）Henry was going to find a job to earn an honest income when he was stopped by the two wealthy brothers. （情态动词：must，表必要性）We must remember that money is not the only measure of a person’s value. （过去将来时：would do）The two brothers believed that Henry would survive in London for a month with the million-pound bank note. （情态动词：should，表建议）You should always keep your dignity even when you are in financial trouble. （情态动词 + 过去将来时）Henry thought he might get help from the consulate and would not accept the brothers’ charity. Homework 1. 请运用本节课知识点写出5句话。 要求：每句话至少运用情态动词或过去将来时中的一个。 EXAMPLE 1. Henry was going to find a job to earn his own living when he was stopped by Roderick and Oliver.（语法点：过去将来时 was going to do，表过去的打算，贴合课文情节） 2. The two brothers believed that Henry could survive in London for a month with the million-pound bank note.（语法点：情态动词 could，表可能性，贴合兄弟俩的赌约设定） made the headlines for Our school’s charity sale made the headlines for raising over 10,000 yuan for students in need. return the money to its owner When I found a wallet with 200 yuan in the classroom, I chose to return the money to its owner immediately. take out a large loan My parents had to take out a large loan to pay for my grandma’s medical bills. apologize to sb for doing sth I should apologize to my deskmate for accidentally breaking her favorite pen. set up a fundraising website Some students set up a fundraising website to help our sick classmate get treatment. generous and honest act Helping the elderly man carry his heavy bags is a generous and honest act. railway station I waited for my cousin at the railway station for two hours yesterday. plastic bag We should use fewer plastic bags to protect our environment. 参考答案 1. Henry was going to find a job to earn an honest income when he was stopped by the two wealthy brothers.（过去将来时：was going to do） 2. We must remember that money is not the only measure of a person’s value.（情态动词：must，表必要性） 3. The two brothers believed that Henry would survive in London for a month with the million-pound bank note.（过去将来时：would do） 4. You should always keep your dignity even when you are in financial trouble.（情态动词：should，表建议） 5. Henry thought he might get help from the consulate and would not accept the brothers’ charity.（情态动词 + 过去将来时） Homework 2.（选做）仿照课本 P54 第 4 题的对话示例，编写一段 80-100 词的双人对话。要求： ① 围绕“Roderick 和 Oliver 的赌约是否公平”“Henry 是否应该接受这封匿名信”两个核心话题展开； ② 至少使用 2个不同的情态动词。 EXAMPLE A: I think it’s kind of Roderick and Oliver to give Henry the money. B: I’m afraid I disagree. They shouldn’t be making a bet on him. A: But Henry might get into trouble if they didn’t offer him the money. B: Well, if they really wanted to help Henry, they could offer him a job. A: Maybe you’re right. But I guess that would be a different story ... made the headlines for Our school’s charity sale made the headlines for raising over 10,000 yuan for students in need. return the money to its owner When I found a wallet with 200 yuan in the classroom, I chose to return the money to its owner immediately. take out a large loan My parents had to take out a large loan to pay for my grandma’s medical bills. apologize to sb for doing sth I should apologize to my deskmate for accidentally breaking her favorite pen. set up a fundraising website Some students set up a fundraising website to help our sick classmate get treatment. generous and honest act Helping the elderly man carry his heavy bags is a generous and honest act. railway station I waited for my cousin at the railway station for two hours yesterday. plastic bag We should use fewer plastic bags to protect our environment. 参考答案 A: I think Roderick and Oliver shouldn’t make such a bet on Henry. It’s totally unfair to treat a poor man like an experiment. B: Why? They might think they’re giving Henry a chance to change his life. A: But Henry must feel confused and upset when he gets the letter. He could refuse it, but he has no money and nowhere to stay. B: Well, if they really want to help, they ought to offer him a job instead of a bet. A: Exactly. A bet will never be real help for a man in trouble. made the headlines for Our school’s charity sale made the headlines for raising over 10,000 yuan for students in need. return the money to its owner When I found a wallet with 200 yuan in the classroom, I chose to return the money to its owner immediately. take out a large loan My parents had to take out a large loan to pay for my grandma’s medical bills. apologize to sb for doing sth I should apologize to my deskmate for accidentally breaking her favorite pen. set up a fundraising website Some students set up a fundraising website to help our sick classmate get treatment. generous and honest act Helping the elderly man carry his heavy bags is a generous and honest act. railway station I waited for my cousin at the railway station for two hours yesterday. plastic bag We should use fewer plastic bags to protect our environment. Things I can do Scores I can master modal verbs and the past future tense, and use them to introduce the plot of The Million Pound Bank Note. 5 4 3 2 1 I understand the western values of dignity and wealth, and form a correct outlook on money. 5 4 3 2 1 I can infer characters’ feelings and implied meanings, and think critically about the bet in the story. 5 4 3 2 1 I take an active part in role-play and group discussion, and can review and solve learning problems by myself. 5 4 3 2 1 Self-assessment Thank you Lavf59.14.100 $null