2022年中考英语情态动词复习ppt课件.pptx

1、情态动词大闯关1234Are you ready?Go!must“必须”（命令或强制，决心，不可推卸的责任）must提问 -Must I finish my task right now?肯定回答：must 否定的回答：neednt/dont have to-Yes,you must.-No,you dont have to/neednt.mustnt“不能、不准”表示禁止做某事使用情景：不能闯红灯 图书馆不能喧哗 酒后不能开车不能玩刀具mustnt cross the street when the light are red mustnt make any noise in the lib

2、rarymustnt drive after drinking 总结：当表示规则；法律规定；涉及到生命安全；命令等情景时mustnt play with the knife.You may hurt yourself.must 和have to的区别 have to：表示因为客观原因而不得不做的事情，翻译为“不得不”must：表示主观的责任和义务，翻译为：必须Students must finish their homework on time.Its raining outside,we have to stay at home.1根据场景用have to 和must填空。1.My eyes

3、 are not very good.I _ wear glasses.2.In many countries,men _ do military(军事的)service.3.We _ walk home last night.There were no buses.have to musthad to 单项选择1.-Must we finish giving out the posters today?-Yes,we _.It cant be put off any longer.A.can B.may C.must.单项选择2.-I didnt pass the math test.I t

4、hink I have spent too much time playing computer games recently.-I agree.You _ play like that any more.A.neednt B.mustnt C.may not D.wouldnt单项选择3.When traffic lights are red,we _ stop and wait.A.may B.can C.must D.mightYou need cry,dear!有你的快递！need怎么安慰一个哭晕在厕所的女生？You neednt go to a doctor.You dont nee

5、d to lose weight.need：需要为什么会有不同？实义动词情态动词need to doneed do人称？时态？I need to study.He needs to study.need to doneeded to dowill need to do否定：dont/doesnt/didnt need to do need do.否定：need not do sth人称？时态？need sth.Do/Does/Did sb.need to do sth.？need sb.do sth.?Yes,sb.must.No,sb.neednt./dont have to.Yes,sb.

6、do/does/did.No,sb.dont/doesnt/didnt.Do the students need to stay up late?Need the students stay up late?Yes,they do.No,they dont.Yes,they must.No,they neednt/dont have to.12 1.You _ worry about her.A.neednt to B.dont need C.dont need to D.not need 2.Theres enough time for you to go to the airport.Yo

7、u _ hurry now.A.should B.neednt C.must D.cant 3.Tom _ some money to buy books.A.need to borrow B.needs to borrow C.needs borrow D.needs borrowing4.-Where is Jason?I want to tell him about the result of the singing competition.-Oh,you _.He has known it already.5.She is a tough（坚强的）girl.You _ worry ab

8、out her.needntdont need to 6.我需要帮助。_ 7.学生需要做作业吗？_ 8.你没有必要这么早来学校。_I need help.Do students need to do homework?You dont need to get to school so early./You neednt get to school so early.4.be able to 多表示“人”；而can 既可以指“人”，也可以表示 例：He is able to drink 100kg milk in 1 minute.The dog can run so fast after ea

9、ting 100kg meat.5.can 可以用于被动语态，而be able to 不能用于被动语态6.can 与 be able to 不能重叠使用.如：He can be able to do it by himself.翻译题1.她做饭能做的很好_2.他们不能发现任何秘密。_She can cook well./She is able to cook well.They cant find any secrets./They are not able to find any secrets.1.表推测，“可能”，“也许”，may的可能性比might大。may&mightShe may

10、be in the room.Im not sure.You might see him if he is here tomorrow.may&might2.表示请求和允许“可不可以”，might比may语气更委婉.同时，might也是may的过去式。May I help you?Id like to use your restroom if I may.May I come in?The teacher told her that she might return the book in three days.may 3.表祝愿。May+主语+动词原形May you have a good

11、day.May you succeed in winning the first prize in the game.can&could1.表示具备某种能力，“能”，“会”。could是can的过去式。I can play the guitar.I could swim when I was seven years old.表“能力”时，be able to=can，意义差别不大。如：I can/am able to get good grades.区别：1.在词义上，can 除表“能”，“会”外，还可以表示“许可”而be able to 则不能。如：You can go now.2.can

12、只用于一般现在时和过去时；而be able to 可用于任何时态例句3.be able to 强调通过努力而获得的能力，而can则强调自身已具有的能力 例：The birds can fly in the sky.He is able to sing My heart will go on after practicing it for several hours.选择题1.He _ sing this song in English after learning it for several hours.A.canB.is able toC.will be able to2.Mary _ r

13、each the apples.A.can B.is able to C.两者都可以BC2.表委婉请求和允许，could语气比can更委婉。can&could Could I use your bike tomorrow morning?Sorry,you cant.shouldhad better(not)do“应该”“最好（不）做”I should go home first after school.You had better not smoke here.=Youd better not smoke here.shall:多用于第一人称 Shall I go home now?Sha

14、ll we get the bags down before the train stop?would like 想要 I would like a cup of tea.=Id like a cup of tea.1231.-Mum,_ I visit the Movie Museum tomorrow?-Im afraid you cant.It is closed on Monday.A.mustB.mayC.shouldD.need 2.-Where are you going this month?-We _ to to Xiamen,but were not sure.A.need

15、ntB.mustC.mightD.mustnt BC3.Your shirt is rather dirty._ I wash it for you?A.DoB.WillC.HaveD.Shall4.You work too much.I think you _ take it easy.A.had betterB.have betterC.have toD.are able to DA填空:5.A:Can you ride a bike?B:No,I _.6._ you like to help me?7._ we call the doctor now,she seems to have a fever.cantWouldShall/Must句子翻译：8.Shall I open the window?9.I could play the piano when I was in primary school.要我打开窗户吗？我在小学的时候会弹钢琴。改错：10.The weather is not good.Wed better to stay at home.11.My mom told me that she may go back home at 9.might1234Are you ready?Go!