介词•介词一般位于名词或代词前,表示该词与句中其他成分的关系.•介词后接名词或动词的ing形式时间•表示时间的介词主要有at,on和in•at:•a.表示某一具体的时刻Heusuallygoestoschoolat3:20•b.表示一天中某段时间或特定的时候atnight,atnoon,atthistimeofyear,atthattime•c.表示节日,泛指atChristmas,atHalloween•on•a,表示具体某一天,表示在节日,onMayfirstonNewYear’sDay•b,表示在周几及其早、中、晚。onMonday,onSundayafternoon,onacoldnight•in•a,表示一天中的早、中、晚,inthemorning,intheevening.•b,表示较长的时间段,如月份,季节,年份,世纪等.inthe20thcentury,in1989,insummer,inMay.—Whendidyoubecameanactor?—_______2019,whenIgraduatedfromcollege.”A.AfterB.InC.FromD.Since•其他表示时间的用法:•In&after在……之后•“in+段时间”表示将来的一段时间以后;•“after+段时间”表示过去的一段时间以后;•“after+将来点时间”表示将来的某一时刻以后。Mymotherwillcomebackinthreeorfourdays.Hearrivedafterfivemonths.Shewillappearafterfiveo’clockthisafternoon.Thedoctorwillbefree______.A.10minuteslaterB.aftertenminutesC.in10minutesD.10minutesafter•For&from&since•for后接时间段的名词词组,表示行为状态持续了多久。•from接时间点的名词词组,表示行为或状态的起始点,而不涉及其持续时间的长短。。•since接时间点的名词词组,不仅表示行为或状态的起始点,而且还强调该行为或状态从起始点一直持续到此时此刻,因而与延续性动词的现在完成时连用•Mr.Brownenjoyedthecountrylifeandlivedthereforalmostfifteenyearsafterhisretirement.•Myyoungersisterbegantolearndancingfromtheageoffive.•HehasbeenworkinginTibetsincehegraduatedfromcollege.•Shirley,arealbooklover,oftenbringshomemanybookstoread___library.•A.inB.forC.byD.from•Mrs.Greenhaslived____London____tenyears.•A.at,forB.in,sinceC.in,forD.on,by—Howlonghaveyouworkedonthefarm?—____theendoflastyear.”A.InB.ByC.AtD.Since—Howlongwillyouworkonthefarm?—____theendofnextyear.”A.InB.ByC.AtD.Since—Whendidyouleavethefarm?—____theendoflastyear.”A.InB.ByC.AtD.Since注意在last,next,this,that,some,every,all或者tomorrow,yesterday,today等词之前一律不用介词:Wemeeteveryday.Wheredidyougolastweekend?Whereareyougoingnextweek?方位•表示位置的介词,主要有at,in,on,to•at•(1)表示在小地方(一个点);•(2)表示“在……附近,旁边”athome,atthebusstop,atschoolHeissittingatthedesk.Hearrivedattheairportat9:00am.•in•(1)表示在大地方;•(2)表示“在…范围之内”。•InParis,inthewater,inschool•HearrivedinShanghaiyesterday.•JiangsuliesintheeastofChina.•(深度接触)•on•(1)表示在一个表面•(2)毗邻,接壤Therearemanybooksonthedesk.RussialiesonthenorthofChina.(表面接触)•to•表示在……范围外,不强调是否接壤FujianistothesouthofJiangsuProvince.区分点over,underover指垂直的上方,与物体有一定的空间,不直接接触。under表示在…正下方,不直接接触Thereisabridgeovertheriver.Thereisacatunderthetable.•On,beneath•on表示某物体上面,与之接触。•beneath表示某物体下面,与之接触。•Heputhiswatchonthedesk.•Theclothisbeneaththebook.•Above,below•above指在…上方,不强调是否垂直•below表示在……下•Thebirdisflyingabovemyhead.•Pleasewriteyournamebelowtheline.Hewasagoodstudentandscored____averageinmostsubjects.A.belowB.ofC.onD.above(2019天津)•表运动方向的介词:across,through通过,穿过•across表示横过,即从物体表面通过,与on有关•through穿过,即从物体内部穿过,与in有关。Sheswamacrosstheriver.Hewalkedthroughtheforest.Up向上down向下Thesunlightcamein______windowsintheroofandlitupthewholeroom.A.throughB.acrossC.onD.over•Therewerealotofpeoplestandingatthedoorandthesmallgirlcouldn’tget_____.•A.betweenB.throughC.acrossD.beyond•表示“在……之间”的介词:between,among•between指在两个人或两个事物之间;•among指在三个或三个以上的人或事物之间。ThereisafootballmatchbetweenClass1and2Theteacherisstandingamongthestudents.•Pleasedrawaline____AandB.•3.表示其他意义的介词•1)on,about关于•on表示书,文章或研究是关于某方面题材,话题的,学术性的•about表示内容较为普通,不那么正式。Heiswritingabookoncooking.Hetoldmealotabouthisvocation.Nick,itisgoodforyoutoreadsomebooks____Chinabeforeyoustartyourtripthere.A.inB.forC.ofD.onPeoplehavealwaysbeencurious____howlivingthingsontheearthexactlybegan.A.at,forB.in,sinceC.in,forD.on,by•2)forof•3)by,with,in表示方法、手段、工具•by以……方法、手段或泛指某种交通工具;bybus,byfoot,bydoingsthHemakesalivingbysellingnewspapers.•with表示用…工具、手段,一般指具体的工具手段writewithapen—Whatdoyouwant______thoseoldboxes?—ToputthingsinwhenImovetothenewflat.A.byB.forC.ofD.withInthosedays,wehadnophones,sowehavetokeepintouch_____writingoften.A.withB.ofC.onD.by•in表示用…方式,用…语言(语调、笔墨、颜色)等•inagoodmanner,inredTheforeignerspoketousinEnglish•4)except,besides除了•except除……之外,不包括在内•besides除……之外,包括在内ExceptMr.Wang,wewenttoseethefilm.BesidesMr.Wang,wealsowenttoseethefilm.•5)as作为,担任,像…Heworksasawaiterinthatrestaraut.•a.asadj/advas…和…一样Sheisastallashersister.•b.asadj/advaspossible/onecan尽可能…Iwillcomeassoonaspossible/Ican•c.aswellas和,不但,而且,和…一样好Jimaswellashisbrother,wentoutforaparty.