at,on,in等介词的使用.ppt

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1、at/on/inat/on/in(时间)请比较at，on与inTheyarrivedat5o’clock.TheyarrivedonFriday.TheyarrivedinOctober./Theyarrivedin1968.①at用来表示一天之内的某个时间：at5o’clockat11.45atmidnightatlunchtimeatsunset②on用来表达星期几和几月几日：onFriday/onFridayson12March1991onChristmasDayonmybirthday③in来表达

2、较长的时间（例如：月、季、年）inOctoberin1968inthe18thcenturyinthepastin(the)winterinthe1970sIntheMiddleAgesin(the)futureat用于下列短语atnightIdon’tlikegoingoutatnight.attheweekend/atweekendsWillyoubehereattheweekend?atChristmas/atEaster(但onChristmasDay)Doyougiveeachotherpres

3、entsatChristmas?atthemoment/atpresentMrBennisbusyatthemoment/atpresent.atthesametimeLizandIarrivedatthesametime.注意疑问句通常用Whattime…?(通常不用atwhattime…?)Whattimeareyougoingoutthisevening?可以说：inthemorning(s)intheafternoon(s)intheevening(s)Iwillseeyouinthemornin

4、g.Doyouworkintheevenings?但要说：onFridaymorning(s)onSundayafternoon(s)onMondayevening(s)andsoonI’llbeathomeonFridaymorning.DoyoureallygooutonSaturdayevenings?last/next/this/every前不用at/on/in:IwillseeyounextFriday.(而非onnextFriday)TheygotmarriedlastMarch.inafew

5、minutes/insixmonths等表示将来某时：Thetrainwillbeleavinginafewminutes.(从现在开始的几分钟后)Jackhasgoneaway.He’llbebackinaweek.(从现在开始的一周后)Shewillbehereinamoment.(一会)还可以说insixmonths’time,inaweek’stimeTheyaregettingmarriedinsixmonths’time.(或…insixmonths)还可以用in表示“用…时间”Ilearnt

6、todriveinfourweeks.(我学驾驶用了四周时间)1.用at,on或in+下列词语完句子。theeveningabout20minutes1492Christmasthemoment21July1969the1920sthesametimeSundaystheMiddleAges11secondsnight1.ColumbusmadehisfirstvoyagefromEuropetoAmerican____2.InBritainmostpeopledonotwork___3.Ifthesky

7、isclear,youcanseethestars___4.Afterworkinghardduringtheday,Iliketorelax___.5.Thefirstmanwalkedonthemoon___6.It’sdifficulttolistenifeveryoneisspeaking___7.JazzbecamepopularintheUnitedStates__8.I’mjustgoingouttotheshop.I’llbeback___9.(打电话)‘CanIspeaktoClare?

8、”‘I’mafraidshe’snothere__10.InBritainpeoplesendeachothercards__11.ManyofEurope’sgreatcathedrals[kE5Wi:drEl]werebuilt__12.Bobisaveryfastrunner.Hecanrun100metres___2.用at,on或in填空，在不需要介词的地方划“-”。（1）I’llseeyou__Friday.I’l