《Unit-5-The-Value-of-Money-Discovering-Useful-Structures》教案(附导学案)1.docx

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1、Unit 5 The Value of MoneyDiscovering Useful StructuresTeaching Aims1. Learn the definition, structures, functions and features of modal verbs and past future tense.2. Learn to summarize the usage of modal verbs, especially guessing the past events.Important Points And Difficult PointsLearn to summar

2、ize the usage of modal verbs, especially guessing the past events.Teaching ProceduresPart A Modal verbsStep 1 Definition of modal verbsAccording the literal interpretation of modal verbs, we can know that its definition is: modal verbs means the speakers tone, emotion or attitude to some kind of act

3、ion and state, expressing requirement, obligation, intention and so on.(情态动词表示说话人对某一动作和状态的情感态度和语气,表示“需要、应当、可以、必须”等。)Step 2 Kinds of modal verbs原形过去式词义cancould能;能够maymight可以;或许;可能must必须;一定是willwould将;将要;愿意shallshould应该need需要;必要daredared敢;敢于have tohad to不得不;必须ought to应该used to过去常常Step 3 Functions of m

4、odal verbsUnderline the modal verbs in the following sentences and understand its definition and functions.1. Roderick: Young man, would you step inside a moment, please? (表委婉请求)2. Roderick: If you dont mind, may I ask you how much money you have? (表委婉请求)3. Henry: It may seem lucky to you. Now if yo

5、ull excuse me, I ought to be on my way. (表推测) (表委婉请求)4. Roderick: You mustnt think we dont care about you. (表推测)5. May you have good journey! (表祝愿)Summary: 情态动词表示委婉请求、推测、祝愿、建议、意愿、禁止等。Step 4 Basic usage of modal verbs1.不能单独作谓语,除ought to和used to以外,后面只能接不带to的不定式。2.没有人称和数的变化。但有些情态动词,如can,will,dare有一般时和过

6、去时的变化。3.情态动词的“时态”的形式并不是区分时间的主要标志。不少情况下,情态动词的现在时形式和过去时形式都可用来表示现在时间、过去时间或将来时间。Step 5 More about modal verbs1. can和could(1)表示能力,常译为“能,会”,例如:I can speak Japanese, but I cant write it. 我会说日语,但是不会写。(2)表示允许,常译为“可以”;could还可以表示更加委婉地请求或许可。例如:CanCould I have a look at your photos? 我可以看看你的照片吗?Of course you can.

7、 当然可以了。You can smoke in this room. 你可以在这间屋子里吸烟。(3)表示对现在或过去情况的推测,只用于疑问句或否定句中例如:Can she be in the classroom?她可能在教室吗?NO, she cant be in it. 不,她不可能在教室里。Can what he said be true?他说的可能是真的吗?(4)用于肯定的陈述旬中,表示理论上或习惯上的可能性。例如:Accidents can happen at any time. 事故随时会发生。It could be very interesting to go out for a

8、drive.出去开车兜风可能会很有趣(could比call的可能性小)辨析 can(could)/ be able to(1)can只有现在时和过去时could,而be able to则有更多的时态变化,在将来时,完成时和非谓语动词中只能用be able to。(2)can一般指自身具有的能力,而be able to则表示经过一段时间的努力后所具有的能力,相当于manage to do或succeed in doing。例如:This time l failed in the exam, but I11 be able to pass the exam next time. 这次我考试不及格,

9、但下次我能考试及格。(经过努力)2. maymight(1)表示许可或征询对方许可,常译成“可以”,表示征询许可时,may可与cancould换用,might比may的语气更委婉一些,对其一般疑问句的肯定回答可用may或can,否定回答时要用mustnt或cant,mustnt表示“不可以”“禁止”之意。例如:You may go home now. 现在你可以回家了。May I come in? 我可以进来吗?Yes,you maycan. 进来。No, you cantmustnt. 你不能。(2)may常用于祈使句中表示祝愿。例如:May you succeed! 祝你成功!May Go

10、d bless you! 愿上帝保佑你!(3)表示对现在或过去情况的推测,一般只用于肯定句中,may not表示“可能不”之意。might比may可能性小。He may be very busy now. 他现在可能很忙。Why hasnt he come?他为什么还没来?He may have missed the train.他可能没赶上火车吧。3. will /would(1)表示请求、建议,用于第二人称疑问句中would比will语气更委婉。例如:Will you call back later, please? 请过一会儿再打过来好吗?Would you like a cup of

11、coffee? 你想来杯咖啡吗?(2)表示意志、愿望和决心,有“愿;要”之意,would表示过去的意愿和决心。例如:I will do my best to help you. 我愿尽我最大努力帮助你。(3)表示习惯性动作或某种倾向。would表示过去习惯性的动作或倾向。Oil will float on water. 油总是浮在水上。On Sunday he would go to the park to play chess. 以前每到星期天他总是到公园去下棋(4)(表示功用或能力)能。The room will seat 100 persons. 这个屋子能坐下100人。The door

12、 wont open. 这门打不开。Exercise: 用may, might, can, could 填空(1) They (can/might) _be away for the weekend but Im not sure. (表_)(2) You (may/might) _leave now if you wish. (表_)(3) (could/may) _you open the window a bit, please?(表_)(4) He (can/could) _be from America, judging by his accent. (表_)(5) (may/can

13、) _you swim?(表_)4. shallshould(1)shall用于第一、第三人称疑问句中,表示说话人征求对方的意见或向对方请示。例如:What shall we do this evening? 我们今晚干什么呢?When shall he be able to leave the hospital? 他什么时间能离开医院?(2)shall用于第二、第三人称,表示说话人给对方命令、警告、允诺或威胁。例如:You shall fail if you dont work hard. 如果你不努力学习你会考试不及格。(警告)You shall not leave your post.

14、你不得离开岗位。(命令)He shall have the book when I finish reading it. 当我读完这本书时他可以拿走。(允许)He shall be punished. 他将受到惩罚。(威胁)(3)should表示劝告、建议、命令,其同义词是ought to;在疑问句中,通常用should代替ought to,意为“应该”。(还常用于虚拟语气中)例如:You shouldnt have left so soon. 你不应当走得这么早。Sal suggested that we should go for a swim. 萨尔建议我们去游泳。(4)should表示

15、推测,可能。这种推测往往有一定的根据。含有“按道理应当”之意。例如:They should be at home by now for they have been away for two hours. 现在他们该到家了,因为他们离开两个小时了。If the train is on time,she should arrive in Beijing by seven. 如果火车准点的话,她应该7点前到达北京。5. mustcant(1)must表示“必须;必要”,用于一般疑问句中,肯定回答用must。否定回答要用neednt或dont have to。例如:Must we hand in o

16、ur exercise today? 我们必须今天上交练习吗?Yes, you must. 是的,你们必须。No, you needntdont have to. 不,你们不必。(2)mustnt表示“不允许;禁止”。例如:You mustnt lend the new book to others. 你不许把这本新书借给别人。(3)有时must表示“偏要;硬要;偏偏”,指做令人不快的事情。例如:Must you shout so loudly? 你非要这么大声嚷嚷吗?(4)must表示推测时,只能用于肯定句,意为“一定;肯定”。作此解时,must的否定形式不是mustnt,而是cantcou

17、ldnt。例如:They must be anxious to know the result. 他们一定急于知道结果。I think the news must be true. 我想这个消息一定是真的。No, it cant be true. 不,它肯定不是真的。Exercise: 用will, would, shall, should, must填空。(1)We _ smoke here, because the worker is carrying some petrol. (表_)(2)It is dangerous. You _ leave the room immediately

18、. (表_)(3)He _ go hiking with friends at weekends when young. (表_)(4)Write to me when you get home.I _. (表_)(5)Need I hand in my exercise book at once?Yes, you_. (表_)(6)You have been working all day. You _ be very tired. (表_)(7)It is a long time since we met last time. You _ come and see us more ofte

19、n. (表_)(8)Why dont you try on this dress? It _ look nice on you. (表_)6. need(1)用作情态动词,need意为“需要,有必要”,一般用于否定句或疑问句中。疑问句中把need提前,否定形式是在need后加not。You neednt come here this afternoon. 你今天下午不必来。(2)用作实意动词,意为“需要,有必要”,可以用于各种句式中。You dont need to go now. 你不必现在就走。7. dare(1)dare作情态动词时,常用于疑问句、否定句和条件从句中,过去式形式为dare

20、d。 How dare you say Im unfair? 你怎么敢说我不公平?He darent speak English before such a crowd, dare he? 他不敢在这么多人面前说英语,是吗?(2)dare作实义动词用时,有人称、时态和数的变化。在肯定句中,dare后面常接带to的不定式。在疑问句和否定句中,dare后面可接带to或不带to的不定式。He doesnt dare (to) answer. 他不敢回答。Exercise:(1)Must I stay here? No, you _.(2)You _not be told twice about on

21、e single thing.(3)Sarah doesnt _ hand in her task right now.(4)How _you fight against him? No one _say he had nothing on.(5)I _ to swim across this river.8.情态动词+have done(1)can(could)+have done的疑问或否定形式表示对过去发生的行为的怀疑或否定,另外could have done还表示“过去本能够做,但实际上未做”。例如:He cant couldnt have finished so much work

22、in so short a time. 他不可能在这么短的时间内完成如此多的工作。Where can could they have gone? 他们会到哪去了呢?We could have gone there on foot. A taxi wasnt necessary at all.本来我们可以走着去那儿根本没有必要乘出租车。(2)may(might)+have done表示对过去所发生事情的推测。例如:He may have said so. 他可能这么说过。That was too dangerous. You might have killed yourself. 那太危险了。你

23、当时可能会丧命的。(3)should+have done表示过去本应该做而实际上未做,而shouldnt+have done表示过去本不应该做但实际上做了。例如:You should have started earlier. 你本应该早点动身。You shouldnt have lent him money yesterday. 昨天你本不该把钱借给他。(4)must+have done表示对过去发生情况的肯定推测。例如:It must have rained last night. 昨晚肯定下雨了Part B The future past tenseStep 1 Definition A

24、ccording to the literal interpretation, the definition of the future past tense is: the action or state would take place or happen after a certain past time point, which is often used in the objective clause.(过去将来时表示从过去某一时间来看将要发生的动作或存在的状态, 常用在宾语从句中。)Step 2 Structure1. would/should+do2. was/were goin

25、g to+do3. was/were about to+do4. was/were to+do5.was/were +doing Other forms:肯定结构1. would/should+do2. Was/were going to do否定结构1. wouldnt/shouldnt+do2. wasnt/werent going to do一般疑问结构1. Would/Should主语do2. Was/Were 主语 going to do特殊疑问结构1. 特殊疑问词would/should主语do2. 特殊疑问词was/were主语going to doStep 3 Meaning1

26、.过去将来时表示从过去某一时间来看将要发生的动作或存在的状态,常用在宾语从句中。一般由“would/should+动词原形”构成。She hoped that they would meet again someday. 她希望将来有一天他们能再见面。2.was/were going to+动词原形:表示过去将要发生或很有可能发生的动作,常用于口语中,表示预言、意图或者打算等。He was going to start work the following week. 他打算下星期开始工作。3.was/were about to do:常用来表示即将发生的动作,“刚要/正要做”。注意该结构不与

27、任何时间状语连用。I felt that something terrible was about to happen. 我感到某种可怕的事情即将发生。4.was/were to do:表示“曾计划做某事”,如果表示“本来计划做某事,动作没实现”,则需用“was/were to have done”。She said she was to have told me about the accident. 她说她本来想告诉我关于事故的事。5.Start, go, come, leave, see, meet等动词的过去进行时:表示就过去某一时刻而言即将发生的动作。She was coming l

28、ater. 她随后就来。I had just put on my overcoat and was leaving to visit a friend of mine. 我刚穿上外套要去看我的一个朋友。Step 4 HomeworkComplete the sentences with the correct forms.(1)She said the bus _(leave)at five the next morning.(2)I wasnt sure whether he _(lend)me his book the next morning.(3)At that time he did

29、 not know that quitting the job _(become) the turning point in his life.(4)He said he _(visit) China the next week. (5)In his introduction, he made it clear that our credits _(be) hard-earned.Unit 5 The Value of MoneyDiscovering Useful Structures 导学案Learning Aims1. Learn the definition, structures,

30、functions and features of modal verbs and past future tense.2. Learn to summarize the usage of modal verbs, especially guessing the past events.Important Points and Difficult PointsLearn to summarize the usage of modal verbs, especially guessing the past events.Learning ProceduresPart A Modal verbsS

31、tep 1 Definition of modal verbsAccording the literal interpretation of modal verbs, we can know that its definition is: modal verbs mean the speakers tone, emotion or attitude to some kind of action and state, expressing requirement, obligation, intention and so on.(情态动词表示说话人对某一动作和状态的情感态度和语气,表示“需要、应

32、当、可以、必须”等。)Step 2 Modal verbs原形过去式词义canmaymustwillshallneeddarehave toought toused toStep 3 Functions of modal verbsUnderline the modal verbs in the following sentences and understand its definition and functions.1. Roderick: Young man, would you step inside a moment, please?(表_)2. Roderick: If you

33、dont mind, may I ask you how much money you have?(表_)3. Henry: It may seem lucky to you. Now if youll excuse me, I ought to be on my way. (表_) (表_)4. Roderick: You mustnt think we dont care about you. (表_)5. May you have good journey!(表_)Summary: 情态动词表示_、_、_、建议、意愿、禁止等。Step 4 Basic usage of modal ver

34、bs1.不能单独作_,除ought to和used to以外,后面只能接不带to的不定式。2.没有_和_的变化。但有些情态动词,如can,will,dare有一般时和过去时的变化。3.情态动词的“时态”的形式并不是区分时间的主要标志。不少情况下,情态动词的现在时形式和过去时形式都可用来表示现在时间、过去时间或将来时间。Step 5 More about modal verbs1. can和could(1)表示能力,常译为“_”。例如:I can speak Japanese, but I cant write it. 我会说日语,但是不会写。(2)表示允许,常译为“_”;could还可以表示更

35、加委婉地请求或许可例如:CanCould I have a look at your photos?我可以看看你的照片吗?Of course you can. 当然可以了。You can smoke in this room. 你可以在这间屋子里吸烟。(3)表示对现在或过去情况的_,只用_或_中。例如:Can she be in the classroom? 她可能在教室吗?NO, she cant be in it. 不,她不可能在教室里。Can what he said be true? 他说的可能是真的吗?(4)用于肯定的陈述旬中,表示理论上或习惯上的可能性。例如:Accidents c

36、an happen at any time. 事故随时会发生。It could be very interesting to go out for a drive.出去开车兜风可能会很有趣。(could比can的可能性小)辨析can(could)/ be able to(1)can只有_时和_时could。而be able to则有更多的时态变化,在将来时,完成时和非谓语动词中只能用be able to。(2)can一般指_。而be able to则表示经过一段时间的_后所具有的能力,相当于_或succeed in doing。例如:This time l failed in the exam

37、, but I11 be able to pass the exam next time. 这次我考试不及格,但下次我能考试及格。(经过努力)2. maymight(1)表示许可或征询对方许可,常译成“_”。表示征询许可时,may可与cancould换用。might比may的语气更委婉一些。对其一般疑问句的肯定回答可用_或_。否定回答时要用_或_。_表示“不可以”“禁止”之意。例如:You may go home now. 现在你可以回家了。May I come in? 我可以进来吗?Yes,you _. 进来。No, you _. 你不能。(2)may常用于祈使句中表示_。例如:May yo

38、u succeed! 祝你成功!May God bless you! 愿上帝保佑你!(3)表示对现在或过去情况的推测,一般只用于肯定句中,may not表示“_”之意。might比may可能性小。He may be very busy now. 他现在可能很忙Why hasnt he come? 他为什么还没来?He may have missed the train. 他可能没赶上火车吧。3. will /would(1)表示请求、建议,用于第_人称疑问句中,would比will语气更委婉。例如:Will you call back later, please? 请过一会儿再打过来好吗?Wo

39、uld you like a cup of coffee? 你想来杯咖啡吗?(2)表示意志、愿望和决心,有“_”之意;would表示过去的_和_。例如:I will do my best to help you. 我愿尽我最大努力帮助你。(3)表示习惯性动作或某种倾向。would表示过去习惯性的动作或倾向。Oil will float on water. 油总是浮在水上。On Sunday he would go to the park to play chess. 以前每到星期天他总是到公园去下棋。(4)(表示功用或能力)能。The room will seat 100 persons. 这

40、个屋子能坐下100人。The door wont open. 这门打不开。Exercise: 用may, might, can, could 填空1. They (can/might) _be away for the weekend but Im not sure.(表_)2. You (may/might) _leave now if you wish.(表_)3. (could/may) _you open the window a bit, please?(表_)4. He (can/could) _be from America, judging by his accent.(表_)

41、5. (may/can) _you swim?(表_)4. shallshould(1)shall用于_、_人称疑问句中,表示说话人征求对方的意见或向对方请示。例如:What shall we do this evening? 我们今晚干什么呢?When shall he be able to leave the hospital? 他什么时间能离开医院?(2)shall用于_、_人称,表示说话人给对方命令、警告、允诺或威胁。例如:You shall fail if you dont work hard. 如果你不努力学习你会考试不及格。(警告)You shall not leave your

42、 post. 你不得离开岗位。(命令)He shall have the book when I finish reading it. 当我读完这本书时他可以拿走。(允许)He shall be punished. 他将受到惩罚。(威胁)(3)should表示劝告、建议、命令,其同义词是_;在疑问句中,通常用should代替ought to,意为“应该”。(还常用于虚拟语气中)例如:You shouldnt have left so soon. 你不应当走得这么早。Sal suggested that we should go for a swim. 萨尔建议我们去游泳。(4)should表示

43、推测,可能。这种推测往往有一定的根据。含有“按道理应当”之意。例如:They should be at home by now for they have been away for two hours. 现在他们该到家了,因为他们离开两个小时了。If the train is on time,she should arrive in Beijing by seven. 如果火车准点的话,她应该7点前到达北京。5. mustcant(1)must表示“_”,用于一般疑问句中,肯定回答用_。否定回答要用_或_。例如:_ we hand in our exercise today? 我们必须今天上

44、交练习吗?Yes, you_. 是的,你们必须。No, you _. 不,你们不必。(2)mustnt表示“_”。例如:You mustnt lend the new book to others. 你不许把这本新书借给别人。(3)有时must表示“偏要;硬要;偏偏”,指做令人不快的事情。例如:Must you shout so loudly? 你非要这么大声嚷嚷吗?(4)must表示推测时。只能用于肯定句,意为“_”。作此解时,must的否定形式不是mustnt,而是_。例如:They _ anxious to know the result. 他们一定急于知道结果。I think the news _true. 我想这个消息一定是真的。No, it _ true.不,它肯定不是真的。Exercise: 用will, would, shall, should, must 填空。1. We _ smoke here, because the worker is carrying some petrol.(表_)2. I

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