1、情态动词外研版英语九年级中考语法复习外研版英语九年级中考语法复习Lesson 6Lesson 6情态动词考点分析情态动词的类型 功能情态动词(1)只做情态动词must,can(could),may(might),ought to(2)既作情态动词，又作实义动既作情态动词，又作实义动词词 （需要）(3)既做情态动词，又作助动词既做情态动词，又作助动词will(would),shall(should)(4)具有情态动词特征的短语情态动词特征的短语have to/has to,had better注意：would,should,could,might等过去时有时不表示过去时，而是表示更委婉、客气的语
2、气。need情态动词的特征特征例句(1)有一定词义，但不能单独作谓语，必须和行为动词或系动词连用Phelps can swim like fish.(2)无人称和数的变化(have to 除外，用于三单时用has to)She may lose her way.He has to stay here.(3)后接动词_You must finish your homework first.(4)具有助动词的作用，可用来构成否定句、疑问句及简明答语-Can you sing an English song?-Yes,I can.原形can,could的用法 用法例句(1)can 表示能力、可能性、
3、允许能力、可能性、允许等等。Could是can的过去时。You can park your car here.(表允许)Peter can speak English,French,and German.(表能力)Anybody can make mistakes.(表可能性)(2)could 用于委婉地提出请求、委婉地提出请求、建议等建议等，回答时用can。-Could you show me the way to the hospital?-Of course I can.(3)表示怀疑、猜测，常用于怀疑、猜测，常用于_和疑问句中和疑问句中That cant be Professor Li
4、.He has gone to Beijing to attend a meeting.注意：can 与be able to 的区别：can 只能用于一般现在时和一般过去时，而be able to 可用于 (时态)。He was able to flee to Europe before the war broke out.We will be able to travel in space in the future.否定句任何may 和might的用法 用法例句(1)表示请求、许可请求、许可，意为“可以”，用于主语为第一人称的一般疑问句；否定回答用mustntMay I borrow yo
5、ur book?-May I go now?-No,your mustnt.(2)表示推测，意为推测，意为“可能、也许可能、也许”,might 表示的可能性更小The child may be home already.She might win the prize.(3)may放在句首，表示祝愿祝愿May you be happy.注意：maybe和may bemay 为 (词性)，后加be动词，用在句中；maybe为副词，意为“大概、也许”,相当于perhaps，用于句首情态动词must 的用法用法例句(1)表示命令，肯定句中意为“必须，一定”；否定句中 _ 表示禁止，意为“不允许”I m
6、ust do my homework first.You mustnt swim alone in the river,because its really dangerous.(2)以must 开头的一般疑问句，肯定回答用must，否定回答用_ 或 dont have to,表示“不需要”-Must I go home now?Yes,you must.-Must I finish my job now?-No,you neednt.(3)must表示推测，意为“肯定是”,否定用cant 表示“一定不是”-Theres someone knocking at the door.It must
7、 be Jim.-No,it cant be him!He is on vacation in California now.注意：must 与have to 的联系与区别 must 与 have to 都表示必须，常可互换；have/has to 强调客观需要，意为“必须，不得不”;must 强调主观看法，意为“必须，应该”mustntneednt6.need的用法 用法例句(1)need to do sth.表示需要做某事，need是实义动词，有三单形式，否定须借助助动词Lily is bad at maths,she needs to have some extra lessons af
8、ter school.You dont need to finish your work in such a short time.(2)need+v原 表示需要做某事，need是情态动词，无三单，否定为needntYou neednt come to school so early.(3)sth.need doing 表示被动，某物需要被The car is broken,so it needs repairing.7.shall(should),will(would)的用法用法例句(1)shall 用于第一人称表示征求意见、询问Shall I open the window?Shall w
9、e have lunch here?(2)should 常用来表示义务、责任We should obey traffic laws.(3)will 用于第二人称表示询问、请求，也可以表达现在的“意愿”Will you pass me the book?We will do anything for you.(4)would 用来表示过去的意愿或委婉询问 Would you tell me the way to the station?8.had better 的用法“had better+v.”表示“最好做某事”,否定用had better _ _ Youd better stay at ho
10、me.Youd better not go out alone at night.not do情态动词真题链接一、单项选择题。一、单项选择题。()1.Can you drive on the right-hand side of the road in China?_.Thats a rule.A.Yes,we canB.Yes,we mustC.Yes,we shouldD.Yes,we may()2.Is that red schoolbag Marys?It _ be hers.She hates that color.A.may B.must C.cant D.might()3.Car
11、s,buses and bikes _ stop when traffic lights change to red.A.may B.need C.can D.must()4.Where is George?He _ be here just now.His coffee is still warm.A.need B.cant C.must D.shouldnt BCDC()5.Mum.Must I clean the house right now?No,you _.You can do it after finishing your homework.A.neednt B.mustnt C
12、.cant D.shouldnt()6.Look at the sign No photos.It means you _ take photos here.A.can B.cant C.shouldD.must()7._ I swim here?Im sorry.Children _ swim alone here.A.Must;cant B.May;must C.Can;mustnt D.Cant;canABC()8.Have you decided which senior high school to choose?Not yet.I _ go to Moonlight school.
13、A.must B.may C.need D.should()9.I saw Kevin in the supermarket this morning.No,it _ him.He moved to Canada last week.A.can be B.must be C.cant be D.mustnt be()10.Shall we meet at the station at 8 a.m.?In fact we _.The train _ until 10 a.m.A.mustnt;doesnt leave B.mustnt;leavesC.neednt;wont leave D.ne
14、ednt;will leaveBCC二、用正确的情态动词填空。1.The sweater _ belong to Jim.Its much too large for him.2.You _ play in the street because its easy to have an accident.3.Excuse me,_ I take the magazine out of the reading room?Sorry,you cant.Just be here,please.4.Must I finish the work in three days,Mrs.Green?_,_.（否定回答）5.Whose notebook is this?It _ be Lindas.It has her name on it.cantmustntcanNo you needntmustThank you
