初中英语语法--表示时间的介词on-in-at.ppt

PREPOSITIONS OF TIME:AT,IN,ON.Weuse:atforaPRECISETIMEIhaveameetingat9am.Theshopclosesatmidnight.Janewenthomeatlunchtime.at 3 oclockat 10.30amat sunriseat bedtimeat dinnertimeat noonat the momentat sunset.Weuse:inforMONTHS,YEARS,CENTURIES and LONG PERIODS.InEngland,itoftensnowsinDecember.DoyouthinkwewillgotoJupiterinthefuture?Thereshouldbealotofprogressinthenextcentury.in the Summerin Mayin the Ice Agein the past/futurein the 1990sin the next centuryin 1990in Summer.Weuse:onforDAYSandDATESDoyouworkonMondays?Herbirthdayison20November.WherewillyoubeonNewYearsDay?onSundayonSundayonTuesdaysonTuesdayson6Marchon6Marchon25Dec.2010on25Dec.2010.Noticetheuseoftheprepositionoftimeatinthefollowingstandardexpressions:ExpressionExampleatnightThestarsshineatnight.attheweekend*Idontusuallyworkattheweekend.atChristmas*/EasterIstaywithmyfamilyatChristmas.atthesametimeWefinishedthetestatthesametime.atpresentHesnothomeatpresent.Trylater.Prepositions of time.Noticetheuseoftheprepositionsoftimeinandoninthesecommonexpressions:inoninthemorningonTuesdaymorninginthemorningsonSaturdaymorningsintheafternoon(s)onSundayafternoonsintheevening(s)onMondayevening.Whenwesaylast,next,every,thiswedonotalsouseat,in,on.IwenttoLondonlastJune.(notinlastJune)HescomingbacknextTuesday.(notonnextTuesday)IgohomeeveryEaster.(notateveryEaster)Wellcallyouthisevening.(notinthisevening).Remember:inforlargerperiodsoftime.onforsmallperiodsoftime.atforpreciseperiodsoftime.感谢亲观看此幻灯片，此课件部分内容来源于网络，感谢亲观看此幻灯片，此课件部分内容来源于网络，如有侵权请及时联系我们删除，谢谢配合！如有侵权请及时联系我们删除，谢谢配合！