高中英语语法情态动词公开课课件

Unit2GrammarandUsageModalverbsUnit2GrammarandUsageModalvJack—Ihavegoodnewsforyou!Rose—What?Jack—Theeducationaldepartmenthascarriedoutrulestoreducestudents'toomuchstudyload.Rose—Really?Ifso,Idon’thavetostayuplatetodosomuchhomeworkandmymommayallowmetoplaycomputergames.Jack—ThebestthingIthinkisthat

Ican

havemoresparetimetotakeexerciseafterclass.Rose—Sure.Bytheway,whoisyourfavoritesportsstar?Jack—Liu

Xiang,I

shouldsay.Rose—Tellmesomethingabouthim.Jack—Well,

maybeIcanshowyousomephotos.

Jack—Ihavegoodnewsforyou!一.Weusemodalverbstotalkabout:1.Ability（能力）2.Obligation（义务）3.Certainty（可能性）4.Permission（允许）一.Weusemodalverbstotalk二.Wealsousemodalverbsto:5.Makerequests（提出请求）6.Makesuggestions（提出建议）7.Makeoffers（提供帮助）8.Giveadvice（提出意见）二.Wealsousemodalverbsto:51.Ability(能力):LiuXiangcanrunthe110mhurdleracewithin13seconds.1.Ability(能力):LiuXiangcanrcan/could/beableto:can一般表示与生俱来的能力.could:泛指过去的能力Beableto通过努力做成某事Hecanspeakseveralforeignlanguages.

Shecould/wasabletoswimwellwhenshewasonlysixyearsold.can/could/beableto:can一般表示与Attention:can/beableto区别:Edisonalwayswonderedwhyhenscouldhatch(孵)chickenswhilehewasnotableto.Question:Arethetwomodalverbsinterchangeable(互换)?Ifnot,why?can表示与生俱来的能力或一种客观可能，而beableto更加强调通过后天的学习和努力获得的能力，或者在某个客观的场合和背景下，能做到的事情。Attention:can/beableto区别:EdiShiDongpengmightwinamedalattheOlympicGames.Althoughthechanceofwinningamedalissmall,I’lltrymybest!2.Certainty(可能性):ShiDongpengmightwinamedalAttention:veryuncertainalmostcertainmightshouldmustmaycouldoughttowill1.He_____beathome.2.He_____beathome,forhejustcalledmefromhishome15secondsago.A.mayB.mightC.must

A.mayB.mightC.must

(can)Attention:veryuncertainalmostMay:表示实际发生的可能性，“可能”Can：一种客观或者理论上的可能性，“有时候可能”Shemaybeathome.Itcanbeashotas38CinNYinsummer.Attention:+notMaynot:可能不Cann’t/cannot：不可能May:表示实际发生的可能性，“可能”must表示肯定的猜测，译为“一定”，不能用于否定句或疑问句。Thismustbeyourpen.Hemustbedoinghishomeworknow.Hemusthavearrivedalready.mustmust表示肯定的猜测，译为“一定”，不能用于否定句或疑问2.should表示猜测时，一般指按经验或逻辑判断，翻译成“照说应该，估计，想必”

should:---WhencanIcomeforthephotos?Ineedthemtomorrowafternoon.---They_____bereadyby12:00.A.canB.shouldC.mightD.need2.should表示猜测时，一般指按经验或逻辑判断，翻译3.may/might表示将要发生或正在发生的可能性，might比may的可能性要小一些，常用语陈述句中。Hemaycomeormaynotcome.I’mnotsureaboutthat.Anearthquakemightbreakoutinthatarea.may/might:3.may/might表示将要发生或正在发生的可能性，can/could:4.表达可能性时，表惊异、怀疑、不相信的态度。（主要用在否定句、疑问句或惊叹句中）

He’ssuchanicepersonthathe______committhecrime!

can’t你怎么会如此地粗心！

Howcanyoubesocareless!

Canthisbetrue?

can/could:4.表达可能性时，表惊异、怀疑、不相信的高中英语语法情态动词公开课课件I’msotired!Ihavetodothetrainingforatleast10hoursaday!3.Obligation(义务):…yethemust

workhardtowinthegoldmedal.AlthoughLiuXiangissogiftedinhurdlerace…I’msotired!IhavetodotheAttention:advisabilitynecessityoughtto/shouldhavetomustYourmotherbringsyouupandtakesgoodcareofyou,sowhensheisold,you___lookafterherinreturn.

A.canB.mayC.havetoD.must

Attention:advisabilitynecessitMustI…?Yes,youmust.No,youneedn’t./youdon’thaveto.MustI…?Yes,youmust.4.Permission(允许):May

IeatKFCifIwinthegoldmedal?4.Permission(允许):MayIeatKFCan

youhelpmewithmytraining?Idon’tknowhowtousethisequipment!CanyouhelpmewithmytrainiShallwedothetraininginthemorning?It’stoohottotakeexerciseintheafternoon.Shallwedothetraininginthmay/might:1.表示许可。表示请求、允许时，might比may的语气更委婉一些。—Might/MayIuseyourcomputer?—Yes,youcan./No,youcan’t/mustn’t.may/might:1.表示许可。表示请求、允许时，migmay/might:2.用于祈使句中表示祝愿。祝你成功！

Mayyousucceed.

Mayyoubehappyallyourlife.

may/might:2.用于祈使句中表示祝愿。祝你成功！Mcan/could:3.在疑问句中，用could可表示请求，语气较委婉。—____Ihavethetelevisionon?—Yes,you_____./No,you_____CouldHeasksifhe____smokehere.couldcan/maycan’t/I’mafraidnotcan/could:3.在疑问句中，用could可表示请求，shall:1.Shall用于第一、第三人称疑问句中，表示说话人征求对方的意见、向对方请示或提供帮助。1.Shallwebeginourlesson?2.Whenshallhebeallowedtoleavehospital?

3.ShallIcarrythisbagforyou?shall:1.Shall用于第一、第三人称疑问句中，表示说shall:2.Shall用于第二、第三人称，表示说话人给对方命令、警告、允诺或威胁。

Youshallfailifyoudon‘tworkharder.

Heshallbepunishedaccordingtotherule.

等我读完这本书，就会给他的。HeshallhavethebookwhenIfinishit.警告威胁允诺shall:2.Shall用于第二、第三人称，表示说话人给对shall:3.Shall用于第三人称，在条约，规定，法律条文中表示义务或规定，意为“应，必须”。

Theschoolrulessaythatnochildshallbeallowedoutoftheschoolduringtheday.shall:3.Shall用于第三人称，在条约，规定，法律条will/would:1.表示意志、愿望和决心。

Iwillneverdothatagain.

will/would:1.表示意志、愿望和决心。Iwilwill/would:2.可表示经常性、习惯性、倾向性。翻译为“经常、惯于、总是”。1).Theoldman_______haveasmokeunderabigtreeeveryafternoonafterhefinishedhisfarmwork.

wouldwill/would:2.可表示经常性、习惯性、倾向性。翻译3).门就是打不开!

Thedoorwon’topen.

否定式，表示不随人愿3).门就是打不开!Thedoorwon’tope表示规律性的：“注定会”Oilwillfloatonthewater.Youwillregretforeverifyoulostthischance.表示规律性的：“注定会”特殊用法特殊用法can/could:4.cannever/can’t……too表示“无论怎样…也不过分”，“越…越好”。你过马路的时候再小心也不为过。

Youcan’tbetoocarefulwhilecrossingtheroad.

can/could:4.cannever/can’t……Attention:can/beableto区别:AbigfirebrokeoutinABChotelyesterday.Luckily,everyone__________runoutofthebuilding.wasableto2.She_____speakbothEnglishandFrench.canAttention:can/beableto区别:Abmust2.表示“坚持”（常用于固定句型：ifyoumustdosth.如果你非得要做某事）如果你真的要走，那就悄悄离开。Ifyoumustleave,doitquietly.must2.表示“坚持”（常用于固定句型：ifyoumAttention:—They___bedoingtheexperimentinthelab.—Why？—Becausethelightsarestillburning.A.couldB.canC.mustD.would

Attention:—They___bedoingth7.Makingoffers(提供帮助):Don’tworry,dear,Iwillwashthemrightaway.Mom,mydirtyclotheshavebeenpiledup!Idon’thavetime……7.Makingoffers(提供帮助):Don’twwill/would:1.表示请求、建议等，would比will委婉客气。sentencepattern

Wouldyouplease…Wouldyoumind…Wouldrather…Wouldyoulike…will/would:1.表示请求、建议等，would比wwill/would:Attention:Iwillgototheparkwithyoutomorrowifyouwilloffermelunch.

Question:Isthissentencecorrect?Why?情态动词表示“意愿”will/would:Attention:Iwillgo8.Givingadvice(提出意见):Youshouldnot/oughtnottoeatsomuchbeforerunning.Howdelicious!!!8.Givingadvice(提出意见):Youshoshould:1.Should表示劝告、建议、命令，其同义词是oughtto；在疑问句中，通常用should代替ought…to。ShouldIopenthewindow?

我们应当要相互学习。

Weshouldlearnfromeachother.should:1.Should表示劝告、建议、命令，其同义词should:2.情态动词should用于第一人称时可以表示说话人的一种谦逊、客气、委婉的语气。Rose—Sure.Bytheway,whoisyouridol?Jack—LiuXiang,Ishouldsay.Ishouldadviseyounottodothatagain.

should:2.情态动词should用于第一人称时可以表示3.should表示意外或惊讶常译为“居然，竟然”。

Ican’tbelievesuchagentlemanshouldbesorudetotheold.

我不敢相信这样一个绅士居然对老人如此无礼。should:3.should表示意外或惊讶常译为should:TobecontinuedTobecontinued三.“情态动词+havedone”的用法

（1）musthavedone对过去某事的十分肯定猜测（2）may/mighthavedone对过去某事的可能性猜测（3）can’t/couldn’thavedone对过去某事的否定猜测（4）should/oughttohavedone过去应该做而未做（5）shouldn’t/oughtn’ttohavedone

过去不应该做而实际上做了（6）needn’thavedone本没有必要做的事实际却做了（7）couldhavedone

本来能够做的（有能力做）事实际却未做到三.“情态动词+havedone”的用法

（1）mustLet'shaveatry!Let'shaveatry!PracticeWithsomuchworkonhand,you____toseethegamelastnight.A.mustn’tgoB.couldhavegoneC.shouldn’tgoD.shouldn’thavegone2.Therewasplentyoftime.She____.A.mustn’thavehurriedB.couldn’thavehurriedC.mustnothurryD.needn’thavehurriedPracticeWithsomuchworkonhPractice3.–IsawMaryinthelibraryyesterday.

--You_____her.Sheisstillabroad.

A.mustn’tsee B.can’thaveseen

C.mustn’thaveseenD.couldn’tsee4.AuntMary______thetrain,otherwiseshewouldhavearrivedherebynow.

A.musthavemissed B.shouldhavemissed

C.hadmissed D.mightmissPractice3.–IsawMaryinthe四.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needdare

1.无人称和数的变化;2.尤其用于：*否定句及疑问句中;*在if/whether之后;*或与hardly,never,noone,nobody连用;3.常以needn’t

和daren’t

的形式出现;4.dare有其过去时dared.

多用于肯定句;(sb.)needtododaretodo(sth.)needtobedone(sth.)needdoing

四.可兼做行为动词的情态动词：need、dare情Hedaren’tspeakEnglishbeforesuchacrowd,darehe?判断正误:Hedaren’ttospeakEnglishbeforesuchacrowd,didhe?Thesedishesneedbecleanedcarefully.Thesedishesneedtobecleanedcarefully.Thesedishesneedcleaningcarefully.Hedaren’tspeakEnglishbefor五.表示否定的情态动词的用法:

部分情态动词的否定式是情态动词中的考点之一。

mustn’t不准,禁止needn’t没必要(=don’thaveto)can’t不能;不可能maynot不可以;可能不shouldn’t不应该(=oughtnotto)五.表示否定的情态动词的用法:mustn’t不准

Howcanwedealwithexercisesconcerningmodalverbs?Functions&usageofmodalverbsLanguagecontext(上下文、语境)ThinkingFunctions&usageofmodalverbsLanguagecontext(上下文、语境)HowcanwedealwithexerciseHomeworkReviewtheusageofmodalverbsandfinishtheexercisepaperHomeworkReviewtheusageofmoThankyou!Thankyou!Unit2GrammarandUsageModalverbsUnit2GrammarandUsageModalvJack—Ihavegoodnewsforyou!Rose—What?Jack—Theeducationaldepartmenthascarriedoutrulestoreducestudents'toomuchstudyload.Rose—Really?Ifso,Idon’thavetostayuplatetodosomuchhomeworkandmymommayallowmetoplaycomputergames.Jack—ThebestthingIthinkisthat

Ican

havemoresparetimetotakeexerciseafterclass.Rose—Sure.Bytheway,whoisyourfavoritesportsstar?Jack—Liu

Xiang,I

shouldsay.Rose—Tellmesomethingabouthim.Jack—Well,

maybeIcanshowyousomephotos.

Jack—Ihavegoodnewsforyou!一.Weusemodalverbstotalkabout:1.Ability（能力）2.Obligation（义务）3.Certainty（可能性）4.Permission（允许）一.Weusemodalverbstotalk二.Wealsousemodalverbsto:5.Makerequests（提出请求）6.Makesuggestions（提出建议）7.Makeoffers（提供帮助）8.Giveadvice（提出意见）二.Wealsousemodalverbsto:51.Ability(能力):LiuXiangcanrunthe110mhurdleracewithin13seconds.1.Ability(能力):LiuXiangcanrcan/could/beableto:can一般表示与生俱来的能力.could:泛指过去的能力Beableto通过努力做成某事Hecanspeakseveralforeignlanguages.

Shecould/wasabletoswimwellwhenshewasonlysixyearsold.can/could/beableto:can一般表示与Attention:can/beableto区别:Edisonalwayswonderedwhyhenscouldhatch(孵)chickenswhilehewasnotableto.Question:Arethetwomodalverbsinterchangeable(互换)?Ifnot,why?can表示与生俱来的能力或一种客观可能，而beableto更加强调通过后天的学习和努力获得的能力，或者在某个客观的场合和背景下，能做到的事情。Attention:can/beableto区别:EdiShiDongpengmightwinamedalattheOlympicGames.Althoughthechanceofwinningamedalissmall,I’lltrymybest!2.Certainty(可能性):ShiDongpengmightwinamedalAttention:veryuncertainalmostcertainmightshouldmustmaycouldoughttowill1.He_____beathome.2.He_____beathome,forhejustcalledmefromhishome15secondsago.A.mayB.mightC.must

A.mayB.mightC.must

(can)Attention:veryuncertainalmostMay:表示实际发生的可能性，“可能”Can：一种客观或者理论上的可能性，“有时候可能”Shemaybeathome.Itcanbeashotas38CinNYinsummer.Attention:+notMaynot:可能不Cann’t/cannot：不可能May:表示实际发生的可能性，“可能”must表示肯定的猜测，译为“一定”，不能用于否定句或疑问句。Thismustbeyourpen.Hemustbedoinghishomeworknow.Hemusthavearrivedalready.mustmust表示肯定的猜测，译为“一定”，不能用于否定句或疑问2.should表示猜测时，一般指按经验或逻辑判断，翻译成“照说应该，估计，想必”

should:---WhencanIcomeforthephotos?Ineedthemtomorrowafternoon.---They_____bereadyby12:00.A.canB.shouldC.mightD.need2.should表示猜测时，一般指按经验或逻辑判断，翻译3.may/might表示将要发生或正在发生的可能性，might比may的可能性要小一些，常用语陈述句中。Hemaycomeormaynotcome.I’mnotsureaboutthat.Anearthquakemightbreakoutinthatarea.may/might:3.may/might表示将要发生或正在发生的可能性，can/could:4.表达可能性时，表惊异、怀疑、不相信的态度。（主要用在否定句、疑问句或惊叹句中）

He’ssuchanicepersonthathe______committhecrime!

can’t你怎么会如此地粗心！

Howcanyoubesocareless!

Canthisbetrue?

can/could:4.表达可能性时，表惊异、怀疑、不相信的高中英语语法情态动词公开课课件I’msotired!Ihavetodothetrainingforatleast10hoursaday!3.Obligation(义务):…yethemust

workhardtowinthegoldmedal.AlthoughLiuXiangissogiftedinhurdlerace…I’msotired!IhavetodotheAttention:advisabilitynecessityoughtto/shouldhavetomustYourmotherbringsyouupandtakesgoodcareofyou,sowhensheisold,you___lookafterherinreturn.

A.canB.mayC.havetoD.must

Attention:advisabilitynecessitMustI…?Yes,youmust.No,youneedn’t./youdon’thaveto.MustI…?Yes,youmust.4.Permission(允许):May

IeatKFCifIwinthegoldmedal?4.Permission(允许):MayIeatKFCan

youhelpmewithmytraining?Idon’tknowhowtousethisequipment!CanyouhelpmewithmytrainiShallwedothetraininginthemorning?It’stoohottotakeexerciseintheafternoon.Shallwedothetraininginthmay/might:1.表示许可。表示请求、允许时，might比may的语气更委婉一些。—Might/MayIuseyourcomputer?—Yes,youcan./No,youcan’t/mustn’t.may/might:1.表示许可。表示请求、允许时，migmay/might:2.用于祈使句中表示祝愿。祝你成功！

Mayyousucceed.

Mayyoubehappyallyourlife.

may/might:2.用于祈使句中表示祝愿。祝你成功！Mcan/could:3.在疑问句中，用could可表示请求，语气较委婉。—____Ihavethetelevisionon?—Yes,you_____./No,you_____CouldHeasksifhe____smokehere.couldcan/maycan’t/I’mafraidnotcan/could:3.在疑问句中，用could可表示请求，shall:1.Shall用于第一、第三人称疑问句中，表示说话人征求对方的意见、向对方请示或提供帮助。1.Shallwebeginourlesson?2.Whenshallhebeallowedtoleavehospital?

3.ShallIcarrythisbagforyou?shall:1.Shall用于第一、第三人称疑问句中，表示说shall:2.Shall用于第二、第三人称，表示说话人给对方命令、警告、允诺或威胁。

Youshallfailifyoudon‘tworkharder.

Heshallbepunishedaccordingtotherule.

等我读完这本书，就会给他的。HeshallhavethebookwhenIfinishit.警告威胁允诺shall:2.Shall用于第二、第三人称，表示说话人给对shall:3.Shall用于第三人称，在条约，规定，法律条文中表示义务或规定，意为“应，必须”。

Theschoolrulessaythatnochildshallbeallowedoutoftheschoolduringtheday.shall:3.Shall用于第三人称，在条约，规定，法律条will/would:1.表示意志、愿望和决心。

Iwillneverdothatagain.

will/would:1.表示意志、愿望和决心。Iwilwill/would:2.可表示经常性、习惯性、倾向性。翻译为“经常、惯于、总是”。1).Theoldman_______haveasmokeunderabigtreeeveryafternoonafterhefinishedhisfarmwork.

wouldwill/would:2.可表示经常性、习惯性、倾向性。翻译3).门就是打不开!

Thedoorwon’topen.

否定式，表示不随人愿3).门就是打不开!Thedoorwon’tope表示规律性的：“注定会”Oilwillfloatonthewater.Youwillregretforeverifyoulostthischance.表示规律性的：“注定会”特殊用法特殊用法can/could:4.cannever/can’t……too表示“无论怎样…也不过分”，“越…越好”。你过马路的时候再小心也不为过。

Youcan’tbetoocarefulwhilecrossingtheroad.

can/could:4.cannever/can’t……Attention:can/beableto区别:AbigfirebrokeoutinABChotelyesterday.Luckily,everyone__________runoutofthebuilding.wasableto2.She_____speakbothEnglishandFrench.canAttention:can/beableto区别:Abmust2.表示“坚持”（常用于固定句型：ifyoumustdosth.如果你非得要做某事）如果你真的要走，那就悄悄离开。Ifyoumustleave,doitquietly.must2.表示“坚持”（常用于固定句型：ifyoumAttention:—They___bedoingtheexperimentinthelab.—Why？—Becausethelightsarestillburning.A.couldB.canC.mustD.would

Attention:—They___bedoingth7.Makingoffers(提供帮助):Don’tworry,dear,Iwillwashthemrightaway.Mom,mydirtyclotheshavebeenpiledup!Idon’thavetime……7.Makingoffers(提供帮助):Don’twwill/would:1.表示请求、建议等，would比will委婉客气。sentencepattern

Wouldyouplease…Wouldyoumind…Wouldrather…Wouldyoulike…will/would:1.表示请求、建议等，would比wwill/would:Attention:Iwillgototheparkwithyoutomorrowifyouwilloffermelunch.

Question:Isthissentencecorrect?Why?情态动词表示“意愿”will/would:Attention:Iwillgo8.Givingadvice(提出意见):Youshouldnot/oughtnottoeatsomuchbeforerunning.Howdelicious!!!8.Givingadvice(提出意见):Youshoshould:1.Should表示劝告、建议、命令，其同义词是oughtto；在疑问句中，通常用should代替ought…to。ShouldIopenthewindow?

我们应当要相互学习。

Weshouldlearnfromeachother.should:1.Should表示劝告、建议、命令，其同义词should:2.情态动词should用于第一人称时可以表示说话人的一种谦逊、客气、委婉的语气。Rose—Sure.Bytheway,whoisyouridol?Jack—LiuXiang,Ishouldsay.Ishouldadviseyounottodothatagain.

should:2.情态动词should用于第一人称时可以表示3.should表示意外或惊讶常译为“居然，竟然”。

Ican’tbelievesuchagentlemanshouldbesorudetotheold.

我不敢相信这样一个绅士居然对老人如此无礼。should:3.should表示意外或惊讶常译为should:TobecontinuedTobecontinued三.“情态动词+havedone”的用法

（1）musthavedone对过去某事的十分肯定猜测（2）may/mighthavedone对过去某事的可能性猜测（3）can’t/couldn’thavedone对过去某事的否定猜测（4）should/oughttohavedone过去应该做而未做（5）shouldn’t/oughtn’ttohavedone

过去不应该做而实际上做了（6）needn’thavedone本没有必要做的事实际却做了（7）couldhavedone

本来能够做的（有能力做）事实际却未做到三.“情态动词+havedone”的用法

（1）mustLet'shaveatr