-情态动词-M3 Unit 1 语法课教学课件设计

人教版高一英语必修三Unit1

Festivalsaroundtheworld

Unit1

FestivalsaroundtheworldPeriod3Grammar

ModalVerbsIwanttobewithyou

TherearethingsthatmustbedoneThetwoofusareone

ThatarenotyetbegunMotherofmyson

ThingsthatImustdoNooneelsewilldo

WhenIwanttobewithyouIjustwanttobewithyou

Althoughwemightbefarapart

Youshouldbewithmeinmyheart

NooneelsewilldoIwanttobewithyou

IjustwanttobewithyouCanyouhearme?

Ineedyounearme

IwanttobewithyouIwanttobewithyou

Can'tyouhearme?Ineedyounearme,mylove

Ineedyounearme

Iwanttobewithyou

Ineedyounearme,myloveLeading—in:Canyoulistsomemodalverbsthatyouremembered?modalverbsCan/couldMay/mightWill/wouldShall/shouldmustOughttoUsedtoDareBeabletoNeedHaveto1.Discusswithyourpartnershoweachofthesemodalverbsisbeingusedinthesituations.2.Learnandmastertheusageofsomemodalverbs.3.Completesomeexercisesusingwhatyouhavelearnedinthislesson.目标引领：Readthesentencesinpage5ofourtextbooksanddiscusswithyourpartners:1.whatisthegrammarcharacterofthemodalverbs.2.howeachofthesemodalverbsisbeingusedinthesituations.自学探究情态动词的语法特征情态动词有一定的意义，表示或暗示某种情绪或态度，表示可能、建议、愿望、必要、允许、能力等。2.情态动词除oughtto，haveto和usedto外，后面只能接不带to的不定式。3.情态动词没有人称，数的变化，will,candare除外。4.情态动词不能独立使用，必须和实义动词一起构成谓语。5.

情态动词没有非谓语形式，即没有不定式,分词等形式。

合作解疑Summarizetheusageofthesemodalverbs(归纳总结）归纳总结Can/could（1）表示能力（ability)（2）表示允许(permission)许可或请求许可（3）表示推测(prediction)只用在否定句或疑问句中Can/beableto（设法做成某事）can表自身能力

beableto表经过一段时间的努力后所具有的能力=managetodo/succeedindoing例1：CouldIborrowyourdictionary?

Yes,ofcourseyou____.

A.might B.will

C.can D.should析：选C。该句用can的委婉表达式could来征求对方意见，could和might通用，但回答时必须要用can或may，因此该题不选A.2.Luckily,he__________escapefromthebigfireintheend.幸运的是,他终于逃出了大火。wasableto归纳总结May/might(1)表示许可；（2）把握不太大的推测（肯定句）can(疑问句和否定句)might比may可能性更小。（3）祈使句表祝愿eg.祝你一生幸福。（翻译）

Mayyoubehappyallyourlife.归纳总结Will/would1表示意志意愿。will表示现在的意愿，would表示过去的意愿。2表示习惯性动作。will表示现在的习惯，would表示过去的习惯(=usedtodo)。3表示请求建议。主要用于第二人称的疑问句中，will和would均可用，would此时并不表过去，而表示委婉语气。shall和should的用法Shall(1)用于一﹑三人称，征求意见或提议。

eg.我们去外边吃午饭好吗？

Shallwegooutforlunch?

(2)用于第二、三人称，表一种强烈的感情，如“命令，禁止，威胁，允诺”等.Ifyoudaredothat,_______________（你会受到惩罚）(3)在条约，规定，法令等文件中表示义务或规定中“应”，“必须”Candidates______remainintheirseatsuntilallthepapershavebeencollected.试卷完全收回后，应试人才能离开座位。youshallbepunished.shall1.—Theroomissodirty._____wecleanit?—Ofcourse.(2003北京春)

A.WillB.ShallC.WouldD.Do

2.“Theinterest______bedividedintofiveparts,accordingtotheagreementmadebybothsides.

A.mayB.shouldC.mustD.shall

上述两题均考查shall的含义，当shall用于一、三人称疑问句中时，表示征求对方意见；用于二、三人称陈述句中，表示说话人给对方的命令、警告、允诺或威胁等。shouldshouldshould用于构成将来时是助动词。should用于表示“应当”“猜测”是情态动词。

(1)表示义务，责任，意为“应当”。

Youshouldpayforyourtaxes.（2）表示推测，可能性。意为“可能，应该”。

It’smid-night,heshouldbeathome.（3）表示惊讶和难以置信,表示说话人的感情(惊奇、愤怒、失望等)“竟然”。

Whyshouldhedosuchathing?(4)shoud+have+done表示本应该做但实际上没做Must/can`t1must表示“必须”“应该”2mustn’t表示“不允许”“禁止”3must表示猜测否定式can`t/couldn`t____________一定是____________一定在做__________________过去一定做了某事__________________不可能已经做了must+bemust+bedoingmust+havedonecan`thavedone例1：MustIstartatonce?

No,you____.

A.needn’t B.mustn’t

C.can’t D.won’t析：A。由语境可知该答句表示“不必要”，而mustn’t表示“不准、禁止”，不符合语境，显然应使用needn’t表示“不必”，但肯定句回答继续用must。表示推测的用法

can,could,may,might,must皆可表示推测1.情态动词+动词原形：表示对现在或将来的情况推测不同的“肯定”程度可按下列层次排列：He_____athome.(事实)He_________athome.（非常肯定的推断）He_________athome.（仅仅可能而已）He___________athome.（或许,非常不确定）He_____________athome.（很可能不在家）He____________athome.（不可能在家）He________athome.（事实）精讲点拨is

mustbemaybe

mightbe

couldn’tbe

can’tbe

isn’tmay/mighthavedone可能已做/musthavedone一定已做/can’thavedone不可能已做例1：Whereismypen?I_____it.(NMET88) A.mightlose B.wouldn’thavelostC.shouldhavelostD.musthavelost2.She____haveleftschool,forherbikeisstillhere.2.情态动词+havedone：表示对过去情况的推测can’t1.Hemustbereading,____he?2.Youmustdoityourself,____you?3.Hemusthavegoneoverthearticle,______he?4.Itmusthaverainedlastnight,_____it?表猜测语气的反意疑问句的构成isn’tdon’thasn’tdidn’t可兼做行为动词的情态动词：need、dare

情态动词(+动词原形)行为动词

.needdare1.尤其用于：*否定句及疑问句中;2.常以needn’t

和daren’t

的形式出现;3.dare有其过去时dared.

多用于肯定句;1.(sb.)needtododaretodo2.(sth.)needtobedone3.(sth.)needdoing

判Tt断正误:

1.Howdareyousaysuchathing?2.Howdareyoutosaysuchathing?1.Hedaren’ttospeakEnglishbeforesuchacrowd,didhe?2.Hedaren’tspeakEnglishbeforesuchacrowd,darehe?Trueorfalseexercises1.Nobodyneedtobeafraidofcatchingthedisease.2.Nobodyneedbeafraidofcatchingthedisease.1.Completethefollowingsentencesusingmodalverbs.You’vebeenworkingallday.You______beverytired.2.Iwonderwhothatis.It_____beLisa.She’sinthelibraryatthistime.3.Itisalongtimesincewemetlasttime.You_____comeandseeusmoreoften.4.Ihaven’tdecidedwhereI’mgoingformyholidays.I_____gotoAustralia.mustcan’tshouldmay巩固训练5.Myfather’sbirthdayiscoming.What_____Igethim?6.Whydon’tyoutryonthisdress?It_______lookniceonyou.7.Whowasthemantalkingwithyourteacher?I’mnotsure.It______beherbrother.8.Idon’tknowexactlywhentheguestsbehere.They_________arriveatanytime.willshallmightshouldAshehadheartattack,hewastoldthathe____continuethework.

A.needn'tB.maynotC.mustn'tD.can't2.AnEnglishmanwho____notspeakItalianwasoncetravelinginItaly.A.mustB.couldC.mayD.might3.I____liketomakeasuggestion.A.couldB.wouldC.mustD.might4.Iknowthingsarehardwithyou,butyou____trytogetoverthedifficulties.

A.canB.mayC.mustD.oughtC

C

B

B

2.Choosethebestanswers.5.Wehopethatasmanypeopleaspossible_____joinusforthepicnictomorrow.

A.mayB.must

C.shouldD.can

6.—IthinkI’llgiveBobaring.

—You_____.Youhaven’tbeenintouchwithhimforages.

A.willB.may

C.wouldD.should

7.—CouldIhaveawordwithyou,Mum?

—Ohdear,ifyou______.

A.canB.must

C.mayD.shouldDDB

8.ItisusuallywarminmyhometowninMarch,butit_____berathercoldsometimes.A.mustB.canC.shouldD.would9.Youdon’thavetoknowthenameoftheauthortofindabook.You_____findthebookbythetitle.A.mustB.needC.canD.would10.Althoughthis____soundlikeasimpletask,greatcareisneeded.A.mustB.mayC.shallD.sh