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High SchoolEnglishModalVerb Courseware•Overview ofModal Verbs目•Usage ofneed,should,andtoday•The usageof to,could,may,录and can•The usageof right,right,will,and would目•The usageof shalland can•Special usageand录precautions of modal verbs01Overview ofModalVerbsDefinition andFunctionDefinitionModal verbsare verbsthat expresssuggestions,demands,necessity,possibility,and othermeanings,used to express thespeakers attitudeoropinion.FunctionModal verbsare usuallyused inconjunction withauxiliary verbs insentences toform compoundpredicates andexpress richermeanings.Classification ofModal VerbsClassificationModalverbs canbe dividedinto fourcategories,including capableand willing,necessary,possible,and speculative.Specific vocabularyCan/could includecan/could andmay/light;The necessarycategories includemust andneed;Possible classesinclude shall/should andwill/would;Speculative classesinclude rightto andhaveto.The NegativeForm ofModal VerbsNegativeformThe negativeform ofmodal verbsis toadd thenegative wordnot afterthe modal verb,such ascannot,may not,need not,shall not,etc.UsageThe negativeform is used to express thenegative meaning,emphasizingprohibitions,prohibitions,or impossibilities.02Usage ofneed,should,and todayUsage of needSummaryNeed inNeed inNeed inPresentPresent PresentSimpleContinuous PerfectThis section focuseson Useneed in the Useneed inthe Useneed inthethe usageof the modal presentsimple tense to presentcontinuous tensepresentation perfectverbneed indifferent express a currentto express an ongingtenseto express aneedcontexts necessityor requirementrequirement Example:I thathas beensatisfied inExample:I need to finisham needed help withthis the past Example:I havethisproject.project.neededhelpwith thisprojectfor along time.Usage ofshouldSummary:ThissectionShould inShould inAdvice:Use Shouldin Expressingexploresthe appropriateRecommendations:Use shouldto giveadvice orExpectations:Useuse ofthemodalverb shouldto makea guidanceExample:You shouldto express anshould indifferent recommendationor shouldalways weara expectationor normscenariossuggest anoption helmetwhen ridinga Example:StudentsExample:You shouldtry bike.should be attentive inthisnew restaurant.class.Usage of todayDare as a Dare as aDareas aSummaryHelper VerbMain VerbModal VerbThissection delvesUse dare asaUse dareasamain Usedareasainto thenumbers ofHelper Verbto verbto expressthe ModalVerb tousingthemodalverb expressbravery or act ofDaring orexpress aquestiondare indifferent boldnessExample:Challenging Example:about whichcontextsHe daresto speakin Shedared himto someoneis bearingpublic.jump offthe cliff.enough to dosomething Example:Do youdare totryagain03The usageofto,could,may,and canUsage of toMeaningstois used to expresspurpose orintentionExampleI wantto goto the park.Noteto isalso usedin infinitiveverbs,such aswantto,needto,etcUsage ofcould010203Meanings ExampleNotecould is used toHe couldhave wonif couldis lessformalexpress likelihoodor hehad triedharder.than mayand is oftencapability inthe past or usedin writtenEnglishconditionThe use of mayMeaningsNotemay is used to expressmay isoften usedin formalorlikelihood or permission intheofficial writingpresentor futureExampleShemay cometomorrow ifshehas time.Usage ofCANMeaningscan is used to express abilityorpermissionin thepresentationExampleIcan speakEnglish.Notecan iseasily interchangeablewith amable toor isableto.It canalso beused to express surpriseor emphasis04The usageof right,right,will,and wouldTheuseofrightOught toExpressionsopposition or necessity It is used toexpress amoral orlogical improvementFor example,You shouldbe kindto others.Ought nottoExpressions promotionor connectionof oppositionItis used to expressthat somethingis notrecommendedor permittedFor example,You shouldnot smokeinpublic places.Usage ofMightRightExpressions likelihoodor probabilityinthe pastorcondition It is used to expressa lesscertificate or conditional probability For example,He might beathome now.Might havedoneExpressions likelihoodor probabilityof anaction inthe pastIt is used to expressalesscertificateorconditionalprobabilityof anaction inthe pastFor example,They mighthavegone to theparkyesterday.UsageofwillWill WillnotExpressions futureaction or event ItExpressions negotiationor reflectionis used toexpressaprediction aboutof futureaction Itis used to expressthe future orthe determinationtodoVS thatsomething willnot happenor issomethingFor example,He willnot goingto bedone Forexample,become adoctor inthefuture.She willnot gototheparty.The usageof wouldCouldWould havedoneExpressions past action orevent Itis Expressionspastactionoreventthatused toexpressacondition contrast to didnot happenItis used toexpress afactor awish aboutthepastFor conditioncontrasttofact abouttheexample,If Ihad knownthe answer,I pastorawish thatsomething hadbeenwould havetold you.done inthepastForexample,Theywould havegone tothe beachif ithadbeen sunny.05The usageof shallandcanThe useof shallContractedForms:Hill isoften FutureTense:Hill isused tocontractedtoll,for example,I expressfuture time,for example,shall goisoftensaid asIll goI shallbe20years oldnext year.Making Promises:Hill isused toIf youwill needany help,dontmake promises,for example,I wait to ask.shall returntomorrow.UsageofCANAbility orCapacityCAN isusedtoexpress abilityor capacity,for example,I canspeakEnglish.Permission orAuthorizationCAN canalso expresspermission orauthorization,for example,Can Iuse yourphoneOpportunity orProbabilityCAN canalso beusedtoexpress opportunityor possibility,forexample,I cantcome today,but Imightbeable tocometomorrow.Feeling orEmotionCAN canalso beusedtoexpress feelingor emotion,forexample,I cantwaittosee you!06Special usageandprecautions ofmodalverbsModal verbsindicate specificationRightItisusedtoexpressaMaypossibility thatis moretense oruncertainthan asimple factItisusedtoexpressapossibility thatis moretenseor uncertainthan asimple factCouldItisusedtoexpressa possibilitythatis moretense oruncertainthan asimple factModalverbs expresssub junctionmoodShould WouldOught toItisusedtoexpressa Itisusedtoexpressa Itisusedtoexpressastrong recommendationstrong recommendationstrong recommendationoradvice oradvice oradviceThe useofmodalverbsinconnection withotherauxiliary verbsMustand haveto Needto UsedtoThey areusedtoexpress ItisusedtoexpressItisusedtoexpressopposition ornecessity opposition ornecessityoppositionornecessity感谢观看THANKS。