情态动词讲师版Word格式.docx

1、Eg：I can speak fluent English now, but I couldnt last year.注：can和be able to辨析：can只有现在式和过去式，而be able to有更多的形式。Ive always wanted to able to speak fluent English. Those bags look really heavy, are you sure youll be able to carry them on your own?was/were able to表示“经过一番努力后做成某事”相当于managed to do或succeed i

2、n doingAfter the accident it was a long time before she was able to walk again.2、表“允许，请求”口语中常用could代替can，使语气更委婉Could you lend me your equipment?（班级中的清新女神的口气）Can you lend me your equipment?（班级中的女汉子的口气）could用来表示请求时，语气委婉，主要用于疑问句，不能用于肯定句，答语应用can（外国人比较直爽，拒绝就是拒绝，不用委婉的could。Could I use your dictionary?Yes,

3、 you can.（否定回答可用：No, Im afraid not.）3、表“猜测”（主要用于否定和疑问）肯定猜测用mustIt cant be easy caring for a man and a child who are not your own.Can the man over there be our head master?4、表“惊讶”译为“怎么能”（主要用于否定句，疑问句或感叹句）How can you be so crazy?5、（肯）表示客观可能性，常用来说明人或事物的特征，可翻译为“有时会”。要表达具体某事实际发生的可能性时，不用 can，需用 could，may，m

4、ight。 As a human being, anyone can make a mistake. Im confident that a solution can be found.He can be very forgetful sometimes.I may stay at home this weekend.（实际可能性） Peter might come to join us.（实际可能性）惯用形式“cannot too”表示“无论怎么也不（过分）”You cannot be too careful.你越小心越好。惯用形式“cannot but+ 不定式（不带to）”表示“不得不，

5、只好”。I cannot but admire her determination.我不得不钦佩你的决心。 【考点二】may VS might1、表示允许，请求（May比较正式、客气,往往用于陌生人之间或正式场合，一般用于第一人称，might更委婉）May I smoke here? No, you mustnt（或No, youd better not.）注意：回答语比较直接。否定回答一般用must not/mustnt,表示“禁止、之意，但也可以用had better not （最好别）或may not（不可以），语气较为委婉。2、表推测（也许，可能，大概）might更委婉It may r

6、ain this afternoon.3、用于祈使句“祝”May you be happy！ Long may he live! 愿他能持续住下去。 May you have many more days as happy as this one.May she rest in peace.愿她安息。注:与hope，wish 的区别Wish sb.sth.固定搭配所以wish后必须接n.Hope （vi）+for （vt）that /to do惯用句式may well do （很可能）=be likely to do may/might as well do（最好）=had betterYou

7、 may as well tell us now, well find out sooner or later. He may well not forgive you. 【考点三】must VS have to1、must 主观“一定”have to 客观“不得不”I must study hard.（自己下定决心要努力学习）I have to study hard.（被家长骂了之后不得不努力学习）2、mustnt表“禁止”Eg:You mustnt eat in the classroom.1）否定形式：You mustnt go there.你不许去那里You dont have to

8、go there.你没必要去那里2）疑问形式：非得、-Must I come back in advance?-Yes, you must./No, you neednt./you dont have to.3、must表肯定猜测 You must be confused by your handwriting.must猜测的可能性很大，may/might可能性很小。 【考点四】shall VS should1、shall 用于第一，三人称表示“征求意见”要区别于will 表征求常用于第二人称will you, may 常用与第一人称may I（比较正式，多用于陌生人）。Shall I rem

9、ove my coat?2、shall用于二，三人称中表示允诺，威胁，命令，警告 1.Dont worry, you shall be employed.（允诺）2.He shall be regretful for it one day, I tell you.（警告）3.You shall do as I say.（命令）4.If your children dont finish your homework, you shall be punished.（威胁）3、shall必须 （用在条约、规章、法令文件中表义务或规定,一般用于第三人称） Intruders shall be fine

10、d.非法闯入者将遭罚款。4、should 表应该1）.推测 2）.责任It should be a nice day tomorrow.（推测） You should be responsible for your baby.（责任）ought to 表示应该是客观的should表主观的 You should help them make progress. You are his father.You ought to get him to receive good education.3）should表“万一”（用在if引导的条件句中，一般情况不会发生，但也有发生的可能，从句谓语用shou

11、ld+动词原形构成，主句都一定用虚拟语气）Should I be free tomorrow, Ill come.（万一我明天有时间，我就过来）4）should表惊讶译为“竟然”与why，who，how，what连用Why should anyone want to marry Tony? 【考点五】will VS would1、will表“意愿”，“请求”，“习惯”“功能 译为：能/行”He is the man who will conduct other.（意愿）这个是常考点No matter what I said, he wouldnt listen to me.（表意愿的否定）Wi

12、ll you please take a message for him?（请求） When we worked in the same office, we would often have coffee together.（习惯）The door will lock.（功能）would VS used to do would可用来表示过去反复出现的动作，不能表示过去存在的状态，另外，would是完全过去的事情，同现在没有联系。而used to do 表示过去常常，今非昔比In those days, whenever I had difficulties, I would turn to

13、Mr.Chen for help. He used to be a naughty boy and cause trouble. 【考点六】dare VS need 既可以用作情态动词又可以用作实意动词情态动词：只用于否定与疑问前没有do后没有to/doing实意动词：（need doing = need to be done ）,过去式用needed、did you need?和didnt need,肯定式用needs/needed/need,1.Need we leave soon? Yes, you must.（No, you neednt） 2. You neednt have hur

14、ried. 3. A job like nursing needs patience and understanding. （need+名词，need understanding =need to be understood,需要被理解） 4. Do you still need volunteers to help clean up after the party? （need somebody to do something） 5. They didnt need to start so early.（do not need to do）情态动词+have donemust have do

15、ne 表过去一定.might have done本可能.却没有could have done本能.却没有should/ought to have done本应该.却没有neednt have done本不必.却做了但是注意：might/may have done 和could/can have done可以表示对过去的推测但是可能性较小没有must那么一定【基础演练】1. John_ （arrive） yet, or he would have telephoned me.（shouldt have arrived）2. Why_ it get colder when we climb up

16、a mountain? We are getting nearer to the sun! （should）3. In my memory, whenever we chose a day for a picnic, it_ always rain on that day.（would）4. You_ make mistakes, but that is the way you learn how things work and how to mend them.（may）5.-You didnt wait for Elizabeth last night, did you?-Yes, but

17、 we_ she didnt come at all.（neednt have arrived）【题型分类 典题精讲】【牛刀小试】1. I was really anxious about you. You _home without a word.A. mustnt leave B. shouldnt have left C. couldnt have left D. neednt leave2. -I hear youve got a set of valuable coins._ I have a look? - Yes, certainly.A. Do B. May C. Shall

18、D. Should3. I often see lights in that empty house. Do you think I _ report it to the police?A. should B. may C. will D. can4. -Isnt that Anns husband over there? -No, it _ be him. Im sure he doesnt wear glasses.A. cant B. must not C. wont D. may not5. -Tom graduated from college at a very young age

19、. - oh, he _ have been a very smart boy then.A. could B. should C. might D. must6. - I dont mind telling you what I know. -You _.Im not asking you for it.A. mustnt B. may not C. cant D. neednt【群英荟萃】1. Its the office! So you know eating is not allowed here. Oh, sorry.A. must B. will C. may D. need2.I

20、t_ have been Tom that parked the car here, as he is the only one with a car.A. may B. can C. must D. should3.I dont care what people think.Well, you _A. could B. would C. should D. might4.Hi, Tom. Any idea where Jane is?She_in the classroom. I saw her there just now.A. shall be B. should have been C

21、. must be D. might have been5.I cant leave. She told me that I stay here until she comes back.A. can B. must C. will D. may【鱼目混珠】1.This printer is of good quality. If it _ break down within the first year, we would repair it at our expense.A. would B. should C. could D. might 【题型一】 单项选择 1.Its a very

22、 kind offer, but I really _ accept it.A. mustnt B. neednt C. cant D. dont2.You _ practise the drums while the baby is sleeping.A. neednt B. mightnt C. mustnt D. wont3.Will you read me a story Mummy?OK. You_have one if you go to bed as soon as possible.A. might B. must C. could D. shall4.No one _ be

23、compared with Yao Ming in playing basketball.A. can B. need C. must D. might5.If you _go, at least wait until the storm is over.A. can B. may C. must D. will6.Tom, you_leave all your clothes on the floor like this!A. wouldnt B. mustnt C. neednt D. may not7.You _buy a gift, but you can if you want to

24、.A. must B. mustnt C. have to D. dont have to8.Doctor say that exercise is important for health, but it _ be regular exercise.A. can B. will C. must D. may9.Her brother be at home now, because he was seen playing basketball in the stadium just now. A. mustnt B. neednt C. cant D. shouldnt10.It be the

25、 vocabulary that caused you the problem in the exercise because you know a lot of words.A. may B. couldnt C. should D. neednt11.-The room is so dirty._ we clean it?-Of course. A. Will B. Shall C. Would D. Do12.If you want to borrow a football after school, your student card_ here.A. has to leave B.

26、must leave C. has to be left D. must be left13.You _pay too much attention to your reading skills, as is so important.A. can not B. should C. must D. need not14 See who is there! _it be May?A. May B. Must C. Can D. Will15 John_ be a basketball player. He is much too short.A. may B. mustnt C. cant D.

27、 should 16.The Chinese teacher looks so pale. She _ be ill.A. must B. mustnt C. can D. need17.Something_to save our earth. Do you think so?A. can do B. must do C. has to do D. must be done18.Look at what you have done! You _ be more careful.A. ought B. can C. would D. should19.What does the sign over there read?“No person_ smoke or carry a lighted cigarette, cigar or pipe in this area.”A. will B. may C. shall D. must20._you be happy! The same to you!A. Wish B. Hope C. May D. Should 【略有所成】1. They _ have arrived at lunc