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1、时间介词in,on与at的用法介词in,on与at都可用于表示时间的名词前,但用法各不相同,其区别在于:一、用in的场合(1)表示“在某年/月/季节”这个含义时,须用介词in。例如:Shecametothiscityin1980.他于1980年来到这个城市。ItoftenrainshereinSUmmer.夏天这里常常下雨。(2)表示“从现在起一段时间以后”时,须用介词in。例如:Theywi11gotoseeyouinaWeek.他们将在一周后去看望你。Iwi11bebackinamonth.我将在一个月后回来。(3)表示“在某世纪”时,须用介词in.例如:Thismachinewasinv
2、entedintheeighteenthCenuIry.这台机器是在18世纪发明的.Greatchangestookp1aceinthetwentiethcentury.20世纪发生了巨大变化.(4)表示“在某年代或特定世纪某年代”时,须用介词in。例如:Thisincidenthappenedinthe1970”s.该事件发生在20世纪70年代。TheAnti-JapaneseWarbrokeoutinthe1930s.抗日战争爆发于20世纪30年代。(5)除此之外,morning/evening/afternoon三个词也常跟介词in连用。例如:DontwatchTVtoomuchinth
3、eevening.晚上看电视不要太多。Theysometimesp1aygamesintheafternoor他们有时在下午做游戏。二、用on的场合(1)表示“在具体的某一天”或“(在具体的某一天的)早上、中午、晚上”等,须用介词on。例如:JackwasbornonMayIOth,1982.杰克生于1982年5月10日。They1eftonarainymorning.他们是在一个雨天的早上离开的。HewentbacktoAmericaonasummerafternoon.他于一个夏天的下午返回了美国。(2)表示“在星期几”或“在星期几的早上、中午、晚上”等,须用介词。n。例如:Wedontg
4、otoschoo1onSaturdayandSUnday.我们星期六和星期天不上学。WhattimedoyougetuponWeekdays?你在平日什么时候起床?IheardthisstoryonSaturdaymorning.我是在星期六的早晨听到这个故事的。(3)表示“在某一节日”时,须用介词on。例如:Weusua11yeatmooncakesonMid-autumnFeStiVa1我们通常在中秋节吃月饼。MrHureceivedacardonTeachersDay.胡老师在教师节那天收到了一张卡片。三、用at的场合(1)表示“某一具体时刻(即几点几分时)”,须用介词at。例如:Heg
5、etsupatsixoc1ockeveryday.他每天六点起床。Igothomeatfivethirtyyesterdayafternoon.我昨天下午五点半到家。(2)用在特定的时候(时节、时机)时,须用介词at。例如:Theywerehappyatthattime.他们那时很幸福。Ithinktheshopisc1osedatthistimeofday.我认为商店在白天的这个时候关门了。(3)表示“在中午、在夜晚、在周末”时,须用介词at。例如:Whatdoyouoftendoatnoon?你中午经常做些什么?Youcanseemanystarsintheskyatnight.夜晚你能看
6、到天空中有许多星星。(4)表示“在岁”时,须用介词at。例如:Attheageofnine,theboycou1dswimWe11在九岁的时候,这孩子就游泳游得很好了。Attheageoftwenty,IbegantoteachEng1ishatthisSChOOI.在二十岁的时候,我就开始在这所学校教英语了。注意:在含有next,1ast,this,one,any,each,every,some,a11的词组和tomorrow,yesterday,thedayaftertomorrow,thedaybeforeyesterday前不用任何介词。例如:Whatdidyoudo1astsumme
7、rho1idays?去年暑假你做了些什么?Whatareyougoingtodothedayaftertomorrow?后天你打算做什么?练习()1.Chi1drengetgiftsChristmasandtheirbirthdays.A.on;onB.at;onC.in;inD.in;on()2.-Thereisnothingtomorrowafternoon,isthere?No.Wecanhaveagameoftab1etennis.A.onB.inC.outD.up()3.A1otofstudentsinourschoo1werebornMarch,1981.A.inB.atC.onD
8、.since()4.Hesudden1yreturnedarainynight.A.onB.atC.inD.during()5.MygrandfatherwasbornOct.10,1935.A.onB.inC.atD.of()6.Thetrainisstartingfiveminutes.A.inB.atC.forD.sti11()7.Mikedoeshisexercisesseventheevening.A.on;toB.at;inC.by;ofD.at;on()8Chi1drenwakeupveryear1ythemorningofChristmasDay.A.inB.onC.forD.
9、at()9aco1dwintermorning,Imetherinthestfeet.A.InB.OnC.AtD.For()10Ithappenedtobeveryco1dthemorningofoursportsmeeting.A.atB.onC.withD.of()11.Whydidyougetupsoear1ythismorning.A.onB./C.atD.in()12.HewenttoShanghaiSeptember3,1991andcamebackaco1dmorning1astyeanA.in;onB.on;inC.on;onD.in;ia()13.1ucywasbornthe
10、nightofMay12,1984A.onB.inC.atD.to()14.MrsBrowncametoChina1996.A.onB.ofC.to,D.in()15themorningofNovember20,1915,theworkerscametoChicagotoshowtheirmourningofJoeHi11.A.OnB.InC.OnD.At()16.AnnmovedHangzhouSeptember,1992.A./;inB.to;inC.to;onD,in;in()17.Theystartedoffanautumnafternoon.A.duringB.atC.inD.on()18.Heoftengoesschoo1sixthirtythemorning.A.for;to;inB.to;at;inC.to;for;atD,for;at;to()19.HearrivedShanghai9:30March5.A.at;in;atB.to;on;atC.in;on;atD.in;at;on()20.TheEng1ishteacherto1dmetogetthereha1fpastten.A:inB.atC.onD.of答案:BAAAAABBBBBCADBADBDB