九年级下册情态动词专练课件

1、Language points情态动词精讲一. can的用法1.表示能力Eg: She can swim, but I cant.2.表示请求、允许，与may 意思相近。eg: Can I use your pen?3. 表示推测，意为“可能”，常用在否定句和疑问句中，表推测时，cant 意为“不可能”eg：The news cant be true.二.Could 的用法1.Can 的过去式，意为“能，会”。eg: He could write poems when he was 10.2.用于疑问句中，表示委婉的语气。Could I sit here? Could you help me?

2、三.may 的用法1.表示请求、许可，比can正式。May I borrow your bike?肯定回答：Yes, you can./ Yes, please.否定回答：No, you cant./ No, you mustnt.2. 表示推测，谈论可能性，意为“可能，或许”，一般用于肯定句中。It may rain tomorrow.3.May 的过去式为might, might表示推测时，可能性小于may. eg: He is absent from school. He might be sick. 4.表示希望、祈求、祝愿，可翻译为“祝愿”，通常用在“may+主语+动词原形”结构中。

3、eg: May you succeed.四. must 的用法1.表示主观看法，意为“必须，一定”eg: Must I clean the room now?2. mustnt 意为“一定不要，千万别，”禁止，不许肯定回答： Yes，you nust.否定回答： No, you neednt. / No, you dont have to.eg: You mustnt run when you meet a bear.3.must 表示有把握的推测，用在肯定句中。eg: The light is on, he must be in the room.4.比较must 和 have to五.Wi

4、ll 的用法Will 表示意愿、意志、打算，意为“将，将要，会”。Eg: I will help you if Im free this afternoon.六. need的用法1.实义动词，用于肯定句。常用于结构 need to do sth或need doing sth.eg: You need to have a break.2. 情态动词，用于疑问句和否定句中。肯定回答： Yes, you must.否定回答：No, you neednt. / No, you dont have to.eg: Need I stay here any longer?The room needs cle

5、aning.七.Shall的用法Shall 表示征求对方的意见，多用于第一人称，shall I? Shall we?eg: Shall we go out for a walk?八. Should 的用法1.Should 意为“应该”，可表示劝告、建议、义务、责任 等。eg: We should protect the environment.2. *should have done 表示“过去本应该做而实际上未做”，含有责备或后悔的意味。eg: You should have told me about his illness.情态动词专项训练1.- Must I come at 6:30

6、tomorrow?-No, you neednt. You _ come one hour later.A. Can B. need C. should D. must2.-Is that Kates car? - It_ be hers. She has just gone for a meeting.A. cant B. should C. mustnt D. mayAA3.-Bob, where is Linda? - She _ be in the library. But Im not sure. 4.-May I take this magazine out of the read

7、ing room? -No, you _. You read it here.A. Must B. may C. need D. has tomightnt B. wont C. neednt D. mustntBD5. -Many people play with mobile phones all day instead of reading books. - Thats too bad. Everyone _ be a book lover. Reading is more enjoyable.A. May B. should C. would6. If you _ smoke, ple

8、ase go outside. A. can B. may C. must D. mightBC7. Honey, stay at home before I return. - I _, mum.A. must B. can C. will D. should 8. Here is my phone number. You _ call me any time you like.must B. can C. should D. needCB9. We _ use mobile phones when the plane takes off. may not B. shouldnt C. ne

9、ednt D. mustnt10. The girl in the classroom _ be Mary, she called me from Beijing just now.mustnt B. neednt C. shouldnt D. cantDD11. What does the song Never Say Never impress you most?-It tells us that we _ do almost anything if we never give up.Can B. have to C. should D. needA12.-Mum, _ I visit the Movie Museum tomorrow? - Im afraid you cant. It is closed on Monday.A. must B. may C. should D. need13. Must we stay here w