情态动词的教案

情情态态动动词词 Modal Verbs 共 6 课时 Period 1 Studying Aims 1 know more about the Modal Verbs 2 Create the student s interests of English 3 Master the usage about can may must need had better and so on Studying Important and Difficult Points Master the usage about can may must need had better Check list before class Definition Studying Procedure Step1 Lead in 1 教师提问 情态动词都有哪些 2 师生之间相互问候 引出情态动词 Step2 Presentation 一 情态动词有 can could may might must have to shall should will would dare dared need needed ought to 等 情态动词无人称和数的变化 不能单独 使用 必须与其后的动词原形构成谓语 二 情态动词的用法 1 can 用法 1 表示能力 与 be able to 同义 但 can 只用于现在时和过去时 be able to 可 用于各种时态 Two eyes can see more than one 注 Can you Yes I can No I can t I ll not be able to come this afternoon 当表示 经过努力才得以做成功某事 时应用 be able to 不能用 Can 如 He was able to go to the party yesterday evening in spite of the heavy rain 2 表示允许 请求 用 could 比 can 语气更加委婉客气 常用于 could I you 句型中 若表示 同意时 用 can 回答而不用 could Could I borrow the book No you can t Can I go now Yes you can No you can t 此时可与 may 互换 在疑问句中还可用 could might 代替 不是过去式 只是语 气更委婉 不能用于肯定句和答语中 Could I come to see you tomorrow Yes you can No I m afraid not 3 表示推测 可能 惊讶 怀疑 不相信的态度 常用于否定句 疑问句和感 叹句中 can t 表示一定不是 Can this be true This can t be done by him How can this be true It can t be true Can it be true 4 表示客观可能性 客观原因形成的能力 They ve changed the timetable so we can go by bus instead This hall can hold 500 people at least 2 may 用法 1 表允许 请求 can 表示许可或征求对方的许可 常于第一人称连用 注 May I Yes you may No you can t mustn t 用 May I 征徇对方许可时比较正式和客气 而用 Can I 在口语中更常见 在回答以 may 引起的问句时 多避免用这个词 而用其它方式 如 Yes please Certainly might 比 may 语气更委婉 而不是过去式 否定回答时可用 can t 或 mustn t 表示 不可以 禁止 Might May I smoke in this room No you mustn t May Might I take this book out of the room Yes you can No you can t mustn t 2 表推测 可能 也许 常用于肯定句中 might 不是过去式 它所表示的可 能性比 may 小 1 He may might be very busy now Maybe he knows the news He the news 3 用于祈使句 表示祝愿 May you succeed Step3 Do Exercises Step4 Summary Step5 Homework Do your exercises Step6 Self reflection 教学反思 Period 2 Studying Aims 1 know more about the Modal Verbs 2 Create the student s interests of English 3 Master the usage about can may must need had better and so on Studying Important and Difficult Points Master the usage about can may must need had better Check list before class Definition Studying Procedure Step1 Lead in Step2 Presentation 3 must 1 表示义务 意为 必须 主观意志 We must do everything step by step 注 Must I Yes you must No you needn t don t have to Must we hand in our exercise books now No you needn t No you don t have to 2 mustn t 表禁止 不允许 You mustn t talk to her like that 3 表示揣测 意为 想必 准是 一定 等 只用于肯定句 否定 疑问句中 must 改为 can He must be ill He looks so pale She s wearing a diamond necklace She must have a lot of money 注 must 表推测时 其反义疑问句与 must 后面的动词一致 There must be something wrong 4 need 的用法 need 既可用作情态动词 也可用作实义动词 用作情态动词时 主要否定句或 疑问句中 用作实义动词时 可用于各种句式 1 用作情态动词 用于否定句和疑问句中 a Need I Yes you must No you needn t Need we finish the work today Yes you A need B can C may D must b need do sth 变否定句 needn t do sth 变疑问句 Need sb do sth 2 用作实义动词 a need to do sth We need buy some school things 变否定句 don t doesn t didn t need to do sth 变疑问句 Do Does Did sb need to sth Yes do does did No sb don t doesn t didn t You don t need to do it yourself b 当主语是物时 Sth need doing sth Sth need to be done The table needs painting The table needs 5 had better 的用法 1 had better 动词原形 It s best to do sth You had better stay at home stay at home 2 Had better not 动词原形 We had better not play the computer games 6 must have to 1 表示必须 必要 You must come in time 在回答引出的问句时 如果是否定的 不能用 mustn t 禁止 不准 而用 needn t don t have to 不必 Must we hand in our exercise books today Yes you must No you don t have to you needn t 2 must 是说话人的主观看法 即说话人认为必须干某事 而 have to 必须 不 得不 则强调客观需要 即外界因素迫使某人不得不干某事 外界原因 Must 只有一般现在时 have to 有更多的时态形式 1 he play isn t interesting I really must go now 1 2 I can t stop playing the computer games For your health I m afraid you A can B may C must D had to Step3 Do Exercises Step4 Summary Step5 Homework Do your exercises Step6 Self reflection 教学反思 Period 3 Studying Aims 1 know more about the Modal Verbs 2 Create the student s interests of English 3 Master the usage about can may must need had better and so on Studying Important and Difficult Points Master the usage about shall will would Check list before class Definition Studying Procedure Step1 Lead in Step2 Presentation Usage shall 1 用于第一人称征求对方的意见 如 What shall I wear on the journey 我路上穿什么好呢 Shall we dance 我们跳舞好吗 2 shall 用于第二 三人称时表允诺 警告 命令 威胁 现已少见 如 She shall get her share 她可以得到她的一份 You shall have it back tomorrow 你明天可以将它拿回 should 一般不应被认为是情态动词 shall 的过去式 主要用法有 1 用于第一人称疑问句中询问对方的意愿 但语气较委婉温和 如 What should we do now 我们现在该怎么办 2 表示应该 必须 常与 must 换用 例如 We should must master a foreign language at least 我们应当至少掌握一门外语 3 should be 表语 的结构 表示推测或惊奇 例如 They should be back by now 他们现在应该回来了吧 I am sorry that she should be so careless 我感到遗憾她竟会那样粗心 4 should have 过去分词 的结构 表示过去该做而实际上尚未做的动作 或行为 其否定则表示发生了不应该发生的行为 其同义结构 ought to have 过去分词 表示过去 早应该 本当 之意 语气较强 例如 I should have thought of that 这一点我是应当想到的 但没想到 They should not have left so soon 他们不应当走得这么早 但已走了 5 在 It is natural strange natural necessary surprised impossible important that 句型中 主语从句中的谓语动词要用 should 动词原形 表示 理所当然 奇怪 必要 惊异 等的意思 在 lest 以免 for fear that 以防 in case 以备万一 等之后也要用 should 动词原形 在 advise sugest order demand request 等的从句中 should do 例如 It is necessary that he should be sent there at once 有必要马上派他到那里去 It is strange that he should say so 他会说这样的话真是奇怪 Let us go at once lest we should be late for the train 我们马上走吧 以免赶不上火车 will 和和 would 的用法的用法 1 表示意志 决心或愿望 例如 Surely we will support all the people in the world in their struggle for peace 我们一定要支持全世界人民争取和平的斗争 He would not let me try it 他不肯让我去试 2 will 表示经常性 习惯性 倾向性 would 表示过去的习惯行为 He will sit there hour after hour looking at the traffic go by 他会经常一连几个小时坐在那儿观看来往的车辆 He would come to see me when he was in Beijing 他在北京时 常来看望我 3 用于第二人称作主语的疑问句中 表示对对方的请求 would 的语气比 will 委碗 Would will you kindly tell me the way to the station 请问到火车站怎么走 4 表可能性 This will be the book you are looking for He would come to see me when he was in Beijing 他在北京时 常来看望我 Step3 Do Exercises Step4 Summary Step5 Homework Do your exercises Step6 Self reflection 教学反思 Period 4 Studying Aims 1 know more about the Modal Verbs 2 Create the student s interests of English 3 Master the usage about can may must need had better and so on Studying Important and Difficult Points Master the usage about shall will would Check list before class Definition Studying Procedure Step1 Lead in Step2 Presentation Usage 情态动词后跟完成式和进行式的用法 1 情态动词后跟完成式 表 原本应该干某事 而实际上没干 I should have finished the work earlier He isn t here He must have missed the train 2 情态动词后跟进行式 即情态动词 be v ing 形式 表示 想必正在 可能正在 应当正在 表示推测或评论某动作现在是否正在进行等 意 It s twelve o clock They must be having lunch They may be discussing this problem He can t be telling the truth He must be playing basketball in the room She may be staying at home 3 used to v be used to v ing 和 be used to v 1 used to v 意为 过去常常 过去一直 be used to v ing n 名词 意为 习惯于 be used to v 意为 被用来 做某事 2 used to 只表示过去 而 be used to v ing n 可表示现在 过去或将来 例如 1 He used to smoke Now he doesn t 2 He s quite used to hard work working hard 3 The knife is used to cut bread 4 表推测的情态动词句子的反意疑问句 He must may be in the room isn t he He can t be in the room is he He must have finished the work hasn t he He may have done the work last night didn t he 三 情态动词的同义转换 1 can be able to 2 must have to 3 needn t don t have to 4 need do sth need to do sth 情情态态动动词词语语法法讲讲解解 用用作作情情态态动动词词的的其其他他短短语语 would rather would sooner would just as soon had rather had better had sooner can not but may just as well 等可用作情态动词 例如 1 The soldier would sooner die than surrender 2 The brave soldier would as soon die as yield to such an enemy 3 I d rather walk than take a bus 4 If you don t like to swim you may just as well stay at home 注 这些短语后一般直接跟动词原形 would had rather would had sooner would just as soon 后可跟 that 引导的从句 that 常省去 从句要用 虚拟语气 对现在和将来的假设用过去时 对过去的假设用过去完成时 例 如 1 I would rather you came on Sunday 2 I would sooner you hadn t asked me to speak yesterday Step3 Do Exercises Step4 Summary Step5 Homework Do your exercises Step6 Self reflection 教学反思 Period 5 Exercises 情情态态动动词词语语法法练练习习题题 1 May I stop my car here No you A can t B mustn t C needn t D don t have to 2 Must we clean the house now No you A needn t B may not C mustn t D can t 3 John his father about his failure in the exam A dares not tell B dares not telling C dare not tell D dares not to tell 4 You return the book now You can keep it next week if you like A can t B mustn t C needn t D may not 5 Johnny you play with the knife you hurt yourself A won t can t B mustn t may C shouldn t must D can t shouldn t 6 The fire spread through the hotel very quickly but everyone get out A had to B would C could D was able to 7 Would you go out for a walk with me No I My girl friend is coming A wouldn t B shall not C won t D shouldn t 8 Man die without water A will B can C need D shall 9 If he started at 9 0 clock he be there by now A need B shall C ought to D must 10 I mailed the letter two weeks ago She it A must receive B can t receive C might receive D must have received 11 The professor gave orders that the experiment before 5 30p m A be finished B will finish C must be finished D would be finished 12 There was plenty of time You A mustn t hurry B mustn t have hurried C needn t hurry D needn t have hurried 13 Tom was a diligent boy He go to school though it was raining hard was able to B could C couldn t D wasn t able to 14 I go back before lunch No I don t think you A Need must B Do need to C Must have to D May ought to 15 The teacher do all the exercises but a pupil A needn t must B may not must C needn t needn t D can t must 16 Would you open the window please Yes I A will B would C do D can 17 A lion only attacks a human being when it is hungry A should B can C will D shall 18 Must I finish this novel this morning No you A mustn t B might not C don t have to D can t 19 The taxi only hold six passengers It is full You take the next one A may may B can may C may can D must can 20 I a little earlier but I met a friend of mine on the way A may come B may have come C could have come D must have come 21 I wish to go home now I A may B can t C must D do 答案 1 10 BACCB DCADD 11 20 ADACA ACCBC Period 6 Exercises 1 May I sit beside you sir No you My girlfriend is coming soon can t B may not C needn t D shouldn t 2 I speak to Mary please Sorry she come to the phone because she isn t in A Might won t B Can t mustn t C May can t D Couldn t shouldn t 3 I want to know if I smoke here No you Could you see the sign NO SMOKING there can needn t B must can t C shall won t D may mustn t 4 My wife never remembers my telephone number She always look it up A must B should C would D has to 5 you pass me the English magazine please Sure Here you are Could B Need C Must D Might 6 Must I go to work with you No yo