初中英语语法指导之现在进行时课件

PresentContinuousTenseCoursewareforMiddleSchThedefinitionandstructureofthepresentcontinuoustenseThebasicusageofthepresentcontinuoustenseNegativeandaggressivesensesinthepresentcontinuoustensecontents目录ThedifferencebetweenpresentcontinuoustenseandpresentsimpletenseSpecialusageofpresentcontinuoustensePracticeandconsolidationofthepresentcontinuoustensecontents目录01ThedefinitionandstructureofthepresentcontinuoustenseThepresentcontinuoustenseisusedtoexpressanactionthatisongoingorinprogressatthepresentmomentItalsoindicatesanactionthatishappeningaroundnowandislikecontinuinginthefuturePresentContinuousTenseIamstudyingEnglishrightnow(Theactionofstudyingisongingatthepresentationmoment.)ExampleDefinitionFormatExampleQuestionFormExampleNegativeFormExampleThepresentcontinuoustenseisformedbyusingthepresenttenseoftheverb"tobe"(am,is,are)followedbythe-ingformoftheverbIamstudyingEnglish(Thepresenttenseof"tobe"is"am"andthe-ingformoftheverb"study"is"studying".)Toformthenegativeofthepresentcontinuoustense,weuse"amnot","isnot","arenot"followedbythe-ingformoftheverbIamnotstudyingEnglish(Thenegativeformof"am"is"amnot".)Toformaquestionusingthepresentcontinuoustense,wesimplyinvertthesubjectandtheauxiliaryverbAreyoustudyingEnglish?(Thesubject"you"isfollowedbytheauxiliaryverb"are".)Structure02Thebasicusageofthepresentcontinuoustense0102IndicatorsanongoiactionIndicatesthecurrentongoingaction,emphasizingthecontinuityoftheaction.Describetheongoingaction:ThechildrenareplayingintheparkIamwritingalettertomyfriendEmphasizethattheactionisinprogress,ratherthanbeingcompletedorabouttooccur.IndicatorsoftheactionscurrentlyinprogressIndicatorsanupcomingactionTheyaremeetingtomorrowafternoonUsedtoindicateaplanorarrangementforanupcomingaction,emphasizingthattheactionisabouttobegin.03NegativeandaggressivesensesinthepresentcontinuoustenseTheformationofthenegativeformadding"not"betweentheauxiliaryverb"be"andthepresentparticiple,forexample,"IamnotstudyingEnglish"means"IamnotstudyingEnglish".Theusageofnegativeformusedtoexpressthatanactionorstateisnothappening,forexample,"Heisnotplayingbasketball"means"heisnotplayingbasketball".NotesonNegativeFormInnegativesentences,thetenseofthebeverbandthepresentparticipleshouldbeconsistent,andattentionshouldbepaidtotheformchangesoftheverb.Negativesenses010203TheformationofinterrogativesentencesBringthebeverborauxiliaryverbtothebeginningofthesentence,forexample,"AreyoustudyingEnglish?"means"AreyoustudyingEnglish?".UsageofinterrogativesentencesUsedtoinquirewhetheracertainactionorstateisoccurring,forexample,"Isheplayingbasketball?"means"Isheplayingbasketball?".NotesoninterrogativesentencesIninterrogativesentences,theformofthebeverborauxiliaryverbshouldbeconsistentwiththesubject,andattentionshouldbepaidtotheformchangesoftheverb.Interrogtivepresence04ThedifferencebetweenpresentcontinuoustenseandpresentsimpletenseTimeFocusThepresentcontinuoustensefocusesontheongingactionatthemomentofspeaking,whilethepresentsimpletenseisusedtodescribegeneraltruths,hats,orsituationsthatarenottemporaryDurationofActionThepresentcontinuoustenseemphasizesthetemporarynatureofanactionthatishappeningnowandmaycontinueinthefuture,whilethepresentsimpletensedoesnotspecifythedurationoftheactionDifferencesintimeDifferencesinusageThepresentcontinuoustenseisusedtoexpressanactionthatisongingatthemomentofspeaking,suchas"IamstudyingEnglish."ThepresentsimpletenseisnotusedforongingactionsOngoingActionThepresentcontinuoustenseisusedtodescribeanactionthatishappeningrepeatedlyorhabitually,suchas"IamgoingtotheGymeveryday."Thepresentsimpletenseismoreappropriateforactionsthatarenothabitualorrepeated,suchas"IliveinNewYork."FrequencyofAction05Specialusageofpresentcontinuoustense"Iamlivingyourworkverymuch."Praise"Iamdislikingyourbehavior."Criticism"Iamenjoyingthemovie."LikingUsedtoexpressemotionalattributessuchaspractice,criticism,andlivingTemporaryDecision"Iamgoingtotheparkforawalk."TemporaryIntention"Iamplanningtostudyonroadnextyear."Usedtoindicateatemporarydecisionorintention"Iamsorrytodisturbyou,butcouldyoupleasehelpme?"Euphemism"Iamgradientforyourassistance."PolitenessUsedtoexpresseuphemismorpoliteness06PracticeandconsolidationofthepresentcontinuoustenseVSThroughfillintheblankexercises,studentscanconsolidatetheirunderstandingofthepresentcontinuoustenseandimprovetheirabilitytousethetense.DetaileddescriptionTeacherscandesignsomesentenceswithintentionallyleftspaces,allowingstudentstofillinappropriateverbformsbasedonthecontexttotesttheirmasteryofthepresentcontinuoustense.SummaryFillintheblankpracticeSummaryMultiplechoiceexercisescanhelpstudentsbetterunderstandtheusageofthepresentcontinuoustenseandimprovetheirjudgmentanddecision-makingabilities.DetaileddescriptionTeacherscanprepareaseriesofmultiple-choicequestionsrelatedtothepresentcontinuoustense,eachwithfouroptions,allowingstudents