九年級英語各單元知識點總結(jié)

九年級英語各單元知識點總結(jié)匯報人：202X-01-07Unit1:MastertheusageofthesimplepresenttenseUnit2:MastertheusageofthesimplepasttenseUnit3:Masteringtheusageofthesimplefuturetense目錄CONTENTSUnit4:MasteringtheUsageofModalVerbsUnit5:MasteringtheUsageofPassiveVoice目錄CONTENTS01Unit1:MastertheusageofthesimplepresenttenseThesimplepresenttenseisoneofthemostcommonlyusedtensesinEnglish,usedtodescribecommonfacts,habitualorrecurringactions,andthecurrentstate.SummaryThepresenttenseisoneofthemostcommonlyusedtensesinEnglish,whichrepresentsanongoingactionorstate,orrepresentsauniversalfactorhabit.Itiscommonlyusedtodescribesituationsindailylife,suchas"Igetupat7o'clockeveryday"and"Shelikestoreadbooks".DetaileddescriptionDefinitionandUsageSummary:Thebasicstructureofthepresentsimpletenseis"subject+verb+object",withverbsinthepresentsimpletense.Detaileddescription:Thebasicstructureofthepresenttenseis"subject+verb+object",wheretheverbadoptsthepresenttenseform,whichistheprototypeoftheverb.Forexample,"Ieatanappleeveryday"and"Shegoestoschoolbybus".Inaddition,thereareotherformsofthepresenttense,suchasthethirdpersonsingularverbwith"-s"or"-es",aswellastheauxiliaryverb"do/dos"innegativeandinterrogativesentences.StructureandFormDistinguishingfromothertensesSummary:Thereisacleardifferenceinusagebetweenthepresenttenseandothertensessuchasthepasttenseandfuturetense.Thepasttenserepresentspastactionsorstates,whilethefuturetenserepresentsfutureactionsorstates.Detaileddescription:Themaindifferencebetweenthepresenttenseandthepasttenseisthedifferenceintime.Thepasttenserepresentspastactionsorstates,suchas"Iateanappleyesterday"and"Shewenttotheparklastweek".Thefuturetenserepresentsfutureactionsorstates,suchas"Iwillgotothemoviestomorrow"and"Shewillvisithergrandparentsnextweek".Whenusing,itisnecessarytochoosetheappropriatetensebasedonthecontext.02Unit2:MastertheusageofthesimplepasttenseThesimplepasttenserepresentsanactionorstatethatoccurredatacertaintimeinthepast.DefinitionDescribepastexperiences,facts,events,behaviors,etc.thatarenotrelatedtothecurrenttimepoint.UsageDefinitionandUsage

StructureandFormBasicstructuresubject+predicate(verbpasttense)+othercomponentsPredicatevariationRegularverbsandirregularverbshavedifferentpasttensevariations,whichshouldbekeptinmind.AdverbialsoftimeTimeadverbsoftenusedinconjunctionwiththesimplepasttenseincludeago,yesterday,lastnight,etc.thepresentperfecttenseindicatesthatanactionhasbeencompletedandhasanimpactonthepresent,whilethepasttenseonlyrepresentspastactionsorstates.Thedifferencefromthepresentperfecttensethesimplepresenttenserepresentsthepresentstateorhabitualaction,whilethesimplepasttenserepresentsthepastactionorstate.DistinguishingfromthesimplepresenttenseDistinguishingfromothertenses03Unit3:MasteringtheusageofthesimplefuturetenseDefinitionThegeneralfuturetenserepresentsanactionorastatethatwilloccuratacertaintimeinthefuture,oftenusedinconjunctionwithtimeadverbsthatrepresentthefuture,suchas"tomorrow","nextweek",etc.UsageUsedtodescribeplanning,arranging,orpredictingwhatwillhappen,expressingpersonalintentions,plans,orcommitments.DefinitionandUsageStructureandFormBasicstructuresubject+will+verbprototype+othercomponentsPositivesentenceformsubject+will+verbbase+othercomponents,forexample:IwillgototheparktomorrowNegativesentenceformsubject+willnot+verbbase+otherelements,forexample:ShewillnotcometothepartyGeneralinterrogativesentenceformWill+subject+verbprototype+othercomponents,forexample:Willyoupleaseturndownthemusic?DistinguishingfromothertensesDistinguishingfromthepresentsimpletense:thepresentsimpletenserepresentsactionsorstatesthatfrequentlyoccurinthepresent,whilethefuturesimpletenserepresentsactionsorstatesthatwilloccurorexistatacertaintimeinthefuture.Thedistinctionbetweenpresentcontinuoustenseandpresentcontinuoustense:presentcontinuoustenserepresentsanactioncurrentlyinprogress,whilegeneralfuturetenserepresentsanactionthatwilloccuratacertaintimeinthefuture.Distinctionfromthepastfuturetense:Thepastfuturetenserepresentsanactionorastateofexistencethatisexpectedtooccurfromacertaintimeinthepast,whilethegeneralfuturetenserepresentsanactionorastateofexistencethatisexpectedtooccurfromthepresentorpresent.04Unit4:MasteringtheUsageofModalVerbs010204TheMeaningandUsageofModalVerbsMust:indicatesstrongnecessityorobligation,translatedas"must"."Should"meanstosuggestorrecommend,translatedas"should".May:indicatespossibilityorpermission,translatedas"may".Can:standsforabilityorpossibility,translatedas"capable".03"Shouldnot"meansnotrecommended,translatedas"shouldnot".Maynot:indicatesthatitmaynotbe,translatedas"maynot".Mustnot:indicatesprohibition,translatedas"notallowed".Thenegativeandinterrogativeformsofmodalverbsmeanscannot,translatedas"cannot".CannotMustIShouldIToexpressdoubt,translatedas"DoIhaveto?".Toexpressdoubt,translatedas"ShouldI?".030201Thenegativeandinterrogativeformsofmodalverbs0102ThenegativeandinterrogativeformsofmodalverbsCanIexpressaquestion,translatedas"CanI?".MayI:Toexpressdoubt,translatedas"MayI?".ImustgonowInthepasttense,suchas"Hesaidhemustgo."TheywillhavetoleaveearlytomorrowPassivevoice:suchas"Thebookmustbefinishedbynextweek."01020304TheTenseandVoiceFormsofModalVerbs05Unit5:MasteringtheUsageofPassiveVoiceThepassivevoicerepresentstheobjectofanaction,emphasizingtheinfluenceoftheactionontheobjectratherthantheexecutoroftheaction.InEnglish,passivevoiceisoftenusedtodescribeobjectivefacts,behavioraloutcomes,oremphasizetheinfluenceofactionsontheobject.Theuseofpassivevoicecanavoidmentioningtheexecutoroftheaction,makingthesentencemoreconciseandobjective.TheMeaningandUsageofPassiveVoiceam/is/are+pastparticiple(e.g.The