Unit1 Festivals around the world学案设计4

1、Unit 1 Festivals around the worldPeriod 4 语法专题课学习目标1.To master the usage of modal verbs,such as can,may,must,should,shall,etc.2.To learn to use modal verbs in real situations through practice.学习过程.情态动词的定义用来表示说话人的某种感情或语气,对某一动作或状态的看法、态度,即说话人认为某事“可能”“或许”“应该”或是“必须”等意义。.情态动词的特点(1)情态动词本身不能单独作谓语,其后加动词原形。(2

2、)情态动词没有人称和数的变化,只用在一般现在时和一般过去时中(have to除外),情态动词的现在式能够表示现在和将来;过去式除了表示过去外,还可用于表示较为委婉的语气,例如：could,would等。.情态动词can/could,be able to,may/might,will/would,shall/should,must,have to的意义和用法学习建议：根据所列例句,理解并尝试总结情态动词的基本用法。1.can和could (1)He can speak both English and French.他会说英语和法语。(2)Could/Can you tell me how to

3、 get to the zoo?你能告诉我怎么去动物园吗?(3)Electricity can be dangerous sometimes if used wrongly.用电错误,有时可能会很危险。(4)Where can/could they have gone?他们可能去哪儿呢?(5)How could you do such a silly thing?你怎么能做这样的傻事?注意：can与be able to的区别(1)No one could/was able to answer the question.没人能回答这个问题。(2)The fire spread quickly,b

4、ut everyone was able to escape.火势迅速蔓延,但大家都逃了出来。can/could所表示的各种含义(1)(2)(3)(4)(5)(6)can 与be able to的区别2.may和might(1)May/Can/Could/Might I have a talk with you?我能够和你谈谈吗?(2)Your maths teacher may/might be in his office.你的数学老师可能在他的办公室。(3)May you succeed.祝你成功。(4)You may as well go to see the doctor.你最好去看医

5、生。may/might所表示的各种含义(1)(2)(3)3.will和would(1)Will you share your happiness with us?你能够把你的快乐与我们共享吗?(2)If you will come to the party,well be very happy.如果你愿意来参加聚会,我们将非常高兴。(3)He would be nervous when he met strangers.遇见陌生人时,他总是很紧张。will和would所表示的各种含义(1)(2)(3)4.shall和should(1)Shall I carry it for you?我来帮你搬

6、好吗?(2)He shall have the book when I finish reading.我看完这本书就给他看。(允诺)(3)You shouldnt have entered the teachers office without permission.未经允许,你们不应该进教师的办公室。(4)If the car should break down on the way,you would have to walk back.万一汽车中途抛锚,你就得走回来。shall的用法(1)(2)(3) shouldnt have done(4)should5.must和have to (

7、1)He has to pass an examination before he can start work.他必须考试及格,才能开始工作。(2)Must I return the book today?我今天就要还书吗?Yes,you must.是的,你必须还。(No,you neednt/dont have to不,你不必。)(3)The street is wet.It must have rained last night.街道是湿的,昨晚肯定下过雨。(4)The machine must break down at this busy hour.正忙的时候机器偏偏坏了。(1)由前

8、两个例句可知,must 与have to 的区别(2)问句回答中注意(3)最后两个例句中must 表示情态动词记忆口诀:情态动词两要点:动词原形跟后面,说话语气较委婉。can“能力”may“许可”,must“责任”或“义务”,否定回答“neednt”换;should“应该”,would“愿”,have to“被迫”表客观。课后提升挑战一小试牛刀1. I come in and have a talk with you?我可以进来和你谈谈吗?2.(Shall/Will)they wait outside?让他们在外面等吗?3.The boys shouldnt be (play)football

9、.They should be at school.这些男孩子不应该在踢足球,他们应该在上课。4.Must I finish the task?.(不,你没必要)5.Im going to Europe on vacation together with John if I find the money.6.This dish is really delicious. you please say it in Chinese?Sure,we call it “doufu”.7.If you go,at least wait until the storm is over.8.When you

10、cross the street,you be careful with the passing cars.9.May I take this seat?Yes,you .挑战二典题在线1.Liza well not want to go on the trip.She hates traveling.A.willB.canC.mustD.may2.What are you doing this Saturday?Im not sure,but I go to the Rolling Stones concert.A.mustB.couldC.shouldD.might 3.One of ou

11、r rules is that every student wear school uniform while at school.A.mightB.couldC.shallD.will 4. you interrupt now?Cant you see Im on the phone?Sorry Sir,but its urgent.A.CanB.ShouldC.MustD.Would 5.Can I borrow your car,Mum?If you .A.mustB.canC.willD.may6.Since nobody gave him any help,he have done

12、the research on his own.A.canB.mustC.wouldD.need7.No one be more generous;he has a heart of gold.A.couldB.mustC.dareD.need8.It be the vocabulary that caused you the problem in the exercise because you know a lot of words.A.mayB.couldntC.shouldD.neednt9.Whats the name?Khulaifi. I spell it for you?A.S

13、hallB.WouldC.CanD.Might10.I think I will give Bob a ring.You .You havent been in touch with him for ages.A.willB.mayC.canD.should 课后作业1.Master what you have learned today.2.Correct the mistaken exercises in the paper.参考答案学习过程.1.【归纳总结】(1)表示能力、功能,意为“能,会”。(2)表示请求、允许、许可。(3)表示“有时会”。(4)表示推测。(5)表示惊异、怀疑、猜测或

14、不相信等态度,主要用于否定句和疑问句中。(6)当叙述过去经过一番努力才能完成的事情时,只能用be able to。2.【归纳总结】(1)表示请求、许可,常译为“可以”。(2)表示推测,可译为“可能,也许”。may表示推测,一般不用于疑问句中。一般情况下,might表示可能性很小。(3)有时可用于祈使句,表示祝愿(不用might)。3.【归纳总结】(1)will和would可用于第二人称疑问句,表示请求和建议等。would比will更委婉、客气。(2)will和would可表示意志、允诺、愿望和决心,用于各种人称的陈述句中。(3)will和would可表示某种倾向或习惯性动作。will表示现在的习惯性动作,would表示过去的习惯性动作。4.【归纳总结】(1)shall用作情态动词,用于第一、三人称疑问句中,表示说话人征求对方的意见或请求。(2)shall用于第二、三人称陈述句中,表示说话人的意愿,有允诺、警告、命令、决心、强制等意思。通常译为“必须”“应该”或“可以”。(3)表示对现在或以前的动作的责怪、批评(不应该做的事却做了)。(4)表示语气较强的假设(用于对将来情况的假设),意为“万一”。5.【归纳总结】(1)must用于表示说话人的主观看法,“必须”或“应当”。have to用于表示客观情况“不得不”。(2)在回答由must提出的问题