2022年中考英语知识点学习情态动词课件

1、 情态动词can may mustThey can sing!简介They can ride a bike.He can not drive a car.can+动词原形（无人称和数的变化） 1.1.表示能力（体力，知识，技表示能力（体力，知识，技能等）。能等）。Mary can speak three Mary can speak three languages.languages.= Mary_= Mary_speak three speak three languages.languages.（1 1）.can.can只有一般现在时一只有一般现在时一般过去时。般过去时。I will no

2、t be I will not be able to come this able to come this afternoon.afternoon.(2).(2).表示经过努力才得以做成表示经过努力才得以做成某事某事 - be able to- be able to2.2.表示请求，允许表示请求，允许- Can I go now?- Can I go now?-Yes,you can/No,you can -Yes,you can/No,you can not.not.3.3.表示可能性猜测表示可能性猜测He cant (couldnt) have He cant (couldnt) hav

3、e enough money for a new enough money for a new car. car. 4.4.表示对现在动作或状态的猜表示对现在动作或状态的猜测，主要用于否定句和疑问句测，主要用于否定句和疑问句中或感叹句中中或感叹句中: :He cant (couldnt) be He cant (couldnt) be over sixty. over sixty. 他不可能超过他不可能超过六十岁。六十岁。5.could5.could表示比表示比cancan更委婉客气更委婉客气的提出问题或陈述看法，指的的提出问题或陈述看法，指的是现在时间。是现在时间。Could you len

4、d me a Could you lend me a hand? hand? 帮我一把好吗？帮我一把好吗？1. _ I take it out? Im sorry, you _. ()A. Could .couldnt B. Might.might not C. Could.can D. May.can2.Listen!Helen is singing in the next room. It_be Helen. She has gone to Beijing.()A.cant B.mustnt C.may D.should3. _I smoke here?() No, you mustnt.

5、 A. Can B. May C. Must D. Need简介-May I visit Lucy on Sunday, Mum?- Yes, you may. . 1）表允许，询问或说明一件事可不可以做，might指过去时间；但在疑问句中might也可指现在时间，语气比may更委婉。May (Might) I ask for a photo of your baby? 在回答以may引起的问句时，肯定回答是一般可仍用may,或Yes, please. / Certainly./Sure./Of course. ；否定回答根据说话人的语气由强到弱分别选用: must not(mustnt)（禁

6、止）/ had better not（最好别）/ may not（不行）用用 法法简介 1 1）表示）表示 “ “必须必须”（主观看法）时，用于肯定（主观看法）时，用于肯定句或疑问句；用于否定句时表示句或疑问句；用于否定句时表示“禁止禁止”。We must do everything step by step. We must do everything step by step. 我们一切都必须循序渐进地做。我们一切都必须循序渐进地做。You must get home before 9:00.You must get home before 9:00. 2 2）表示揣测。意为）表示揣测。意

7、为“想必、准是、一定想必、准是、一定”等，等，只用于肯定句。只用于肯定句。He must be ill. He looks so pale. He must be ill. He looks so pale. 他准他准是病了。他的脸色苍白。是病了。他的脸色苍白。3)must3)must的疑问句，肯定回答用的疑问句，肯定回答用mustmust， 否定回否定回答用答用needntneednt或或dont have todont have to。1. _ to have lunch with us today? ()A. Do you likes B. Would you like C. Will

8、you liked D. Have you liked2. -Is John coming by train? -He should, but he _ not. He likes driving his car. () A. must B. can C. need D. may3. Peter _ come with us tonight, but he isnt very sure yet. () A. must B. can C. may D. will4. I thought you _ be hungry, so I have brought you some cakes. () A

9、. may B. might C. can D. could5. Come on! We _ hurry because there isnt much time left. ()A. may B. must C. can D. need6.Would you like to drink some juice? Thanks._,but I have drunk a lot if tea.A.Id love to B.I think so C.Im afraid not D. I dont think so.7.May I smoke here? No, you_! Look, there i

10、s a “NO SMOKING”sign here.A.may B.may not C.neednt D.mustnt8.Listen!Helen is singing in the next room. It_be Helen. She has gone to Beijing.A.cant B.mustnt C.may D.should9.What do drivers do when the traffic lights turn red? They_stop and wait till the green light.A.must B.can C.may D.need10. She _

11、know the answer， but Im not sure.A. maybe B. may be C. may D. mustAcan/couldBmay/mightCmust课堂小结1.-You must come back every month. -Yes， I _.A. will B. must C. should D. can2. She _ know the answer， but Im not sure.A. maybe B. may be C. may D. must3. - Must we clean the room right now？ - No， you_. Yo

12、u _clean it after lunch.A. neednt；may B. neednt;must C. Mustnt； can D. mustnt；may4. John_ come to see us tonight， but he isnt very sure yet.A. may B. can C. has to D. must5. Children _ play with fire.A. mustnt B. cant C. shouldnt D. neednt6. -_ I come in， Mr Green？ -Yes,come in， please.A. Must B. Need C. Will D. May7. -Must I finish the work today？ -No， you _. You _ finish it tomorrow.A. mustnt； may B. cant； can C. neednt； may D. neednt； must8. John_ come to see us tonight, but he isnt very sure ye