1、情态动词 总复习Yoyo情态动词canmaymightshouldneedcouldshallmustwillwouldhad betterhave to 情态动词情态动词_具体的词义，具体的词义，情态动词情态动词_人称和数的变化。人称和数的变化。情态动词后必须跟情态动词后必须跟_。一般疑问句提前边，否定句在后一般疑问句提前边，否定句在后直接加直接加 not.有有没有没有动词原形动词原形但但词意不完整词意不完整。情态动词情态动词+V+V原原=谓语动词谓语动词历年历年中考常考中考常考的情态动词用法有：的情态动词用法有：情态动词本身含义情态动词本身含义Eg:She _draw well so sh
2、e wants to be a painter in the future.考察情态动词考察情态动词 表示表示推测的用法推测的用法Eg:-Is Lucy knocking at the door?-No.It _be Lucy.She is in Japan.A.neednt B.must C.cant 考察一般疑问句的回答方式考察一般疑问句的回答方式Eg:-May I pick a flower in the garden?-_.A.No,you neednt B.Not,please.C.No,you mustnt D.No,you wont目 录复习部分情态动词的用法复习部分情态动词的用
3、法易混情态动词解析易混情态动词解析情态动词表示推测情态动词表示推测cant 不可能；不可以can 能；可以may not 可能不may 可能；可以neednt 不需要；不必must 必须；一定 mustnt 禁止need 需要 should 应该shouldnt 不应该had better do sth 最好做.had better not do sth 最好不.can 表示能力表示能力 He can speak English.表示猜测猜测-100%否定否定 Can you help me?表示表示请求或允许请求或允许 -Look at boy at the gate!Its our son
4、.-That cant be our son,because he went to Shanghai yesterday.cant 不会；不可能can 表请求时 could语气更委婉，主要用于疑问句，答语应用can.Could you help me?Yes,I can.-couldcanbe able to 时态时态含义含义主语主语can-could多种时态与生俱来的能力经过努力所得的能力Eg:When he was a little boy,he _only cry.But now,he is brave.And he _ fight with dogs.couldis able toAn
5、ything有生命的个体No,you _ may表示表示请求或允许请求或允许 May I come in?canmaymustnt/you cant.Yes,you may.may-might语气较为婉转客气比can正式 表示希望、祝愿。表示希望、祝愿。表示猜测（可能）表示猜测（可能）:May you be happy！祝你幸福！下周她可能到上海去。may-might语气更加不肯定。She may/might go to Shanghai next week.maybe may be 含义含义位置位置那个男孩那个男孩可能可能来自加拿大。来自加拿大。Eg:Maybe the boy is fro
6、m Canada.=The boy may be from Canada.“可能；也许可能；也许”perhapsmay+V原原 “可能是可能是”用于用于句首句首作作状语状语在在句中句中作作谓语谓语must0102表示命令表示命令“必须必须”You must come early tomorrow mustnt 不许；禁止一般疑问句的回答一般疑问句的回答-Must you come early tomorrow?-Yes,you must.-No,you neednt/dont have to.03表示猜测：表示猜测：100%肯定，肯定，“一定；一定；肯定肯定”They must be at h
7、ome.The light is on.表推测must 一定，肯定（一定，肯定（100%的可能性）的可能性）maymight,could 有可能，也许（有可能，也许（20%80%的可能性）的可能性）cant 不可能，不会（可能性几乎为零）不可能，不会（可能性几乎为零）对某事判断的程度：对某事判断的程度：must maycould might cantExercise1.-Is that girl under the tree Mary?No,that _ be Mary.She is in New York.A.can B.mustnt C.cant2.Look!Mr.Smith is run
8、ning on the playground.He likes running in the morning.No,it _ be him.He has gone to Shanghai on business.AcanBcantCmightDmustnt3.Bill has been driving all day.He _ be tired.AneedBmustCshallDcanmusthave to时态时态含义含义否定否定无多种时态说话者主观的态度 客观条件，说话者被迫You _read the book in the library.I _ stay at home because
9、of the heavy rain.mustntdont have to 不必=neednt.musthave tohas to;had to;will have toneed01作 情态 动词“需要需要”，need do sth need buy a big house.I need to buy a big house.作行为动词 “need to do sth.需要做某事需要做某事Need I buy a big house?-Yes,you must.-No,you neednt/dont have to.(不必要不必要)02和must回答方式一样 Do you need to buy
10、 a big house?【注意注意】作作行为动词行为动词，有人称、数和时态的变化，有人称、数和时态的变化Exercise1.-Dad,must I finish my homework today？-No,you _.You may finish it tomorrow.A.neednt B.mustnt C.dont D.wont2.-May I put my bike here?-No,you _.You should put it over there.A.may not B.mustnt C.neednt3.-Lisa,_ you speak French?-Yes,but only
11、 a little.A.may B.can C.need D.must4.-_I use your mobile phone?-Certainly.Here you are.A.May B.Must C.should D.needExercise5.-Mum,can I go to the movies today?-No,and you _ finish your schoolwork first.A.can B.cant C.must D.neednt6.Im sure this book _ Li Leis,because there is his name on it.A.cant b
12、e B.may be C.might be D.must be 7.-Is Lucy knocking at the door?-No.It _be Lucy.She is in Japan.A.neednt B.must C.cant8.-Have you seen my glasses?I _find them.-Sorry,I havent seen them.A.cant B.shouldnt C.wont D.mustntExercise 9.You _ stop when the traffic light turns red.A.can B.had better C.need D.must 10.Shall we take a taxi?No,we _.Its not far from here.A.cant B.mustnt C.shouldnt D.neednt谢谢观看教师：木哈哈哈课节：XXX
