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介词1.介词（preposition）是用于名词、代词或相当于名词的结构之前，表示词语之间意义关系的词，介词又称前置词，它是一种虚词，不能在句中单独承担成分。2.按照词义，介词可分为表地点、表时间、表除去、表比较、表反对、表原因、表目的、表结果、表手段、表方式、表所属等。3.要求掌握的介词主要是in、on、at、to、from、by、with、for、about、after、before等十几个。1.in年、月、季节、早、中、晚、on具体某一天，星期、日期、节日前at用于时刻前，黎明，终止和开端注意：atnoon在中午atnight在夜间inthemorning在早上onthemorningofJuly1st在七月一日的早上onarainyday在雨天1.MaryisflyingtoFrancesoon.ShewillarriveinParis___themorningofJuly9.A.onB.inC.at2.Thetwinswereborn__aFridayevening.A.inB.onC.at3.WetravelledovernighttoParisandarrived__5o’clock__themorning.A.on,inB.at,inC.at,in4.Wefinishourlessons___11:30andthenhavearest__noon.A.in,inB.at,atC.in,at2.in+时间段在……之后（内），多用于将来时after+时间段在……之后，多用于过去时1.MrBrownhasgonetoCanada.Hewillbeback___twoweeks.A.forB.afterC.in2.Ourmanagercameback___anhour.A.inB.afterC.at3.Theyhavebeenhere__anhour.A.forB.afterC.in3.for+时段since+时段+agosince+时间点since+一般过去时句子常用于现在完成时1.Hecamehere__1992,andhehaslivedhere___1992.A.in,forB.in,sinceC.since,since2.IhaveknownLiLei__overfiveyears.A.inB.sinceC.for3.Ithasbeenthreeyearssincehe__here.A.comeB.cameC.comes4.Theoldmanhasbeenaway___twoyearsago.A.inB.sinceC.for4.before在……之前by到……时为止,不迟于……1.Hewon’tcomeback___five.A.beforeB.afterC.by2.Theworkmustbefinished__Friday.A.atB.byC.after3.Wehadthreemeetings___lastFriday.A.inB.beforeC.by1.在树上inthetree/在同一个班inthesameclass/在北京inBeijing2.在世界上intheworld/在河里intheriver/在城市inacity3.在阳光下inthesun/在北方inthenorth/inChina在中国4.在第五中学inNo.5MiddleSchool5.在……的前部inthefrontof在……前面infrontof6.在……中间/（内部）角落inthemiddle/cornerof7.固定用法：住院inhospital/在露天intheopenair/躺着看书readinbed8.站成行standinline/处于危险中indanger/处于麻烦中introuble/惊奇地insurprise9.用英语inEnglish/穿红色的inred/以…方式in…wayof表示大地方，表示空间、地域或者物体内部应用in，或表示在…范围之内。on•on表示在上面，与物体直接接触。beneath•beneath表示在某物之下，几乎接触或接近。over•over表示垂直在…之上above•above，在…之上，不一定垂直in•in表示在里面（在内部或在其中）under•under表示垂直并不与表面接触的下方below•below表示非垂直并不与表面接触的下方between•between表示在中间near•near表示在旁边，在附近nextto•nextto表示在旁边，紧挨着infrontof•infrontof表示在物体范围外的前面前后inthefrontof•inthefrontof表示在某一范围之内的前部前后behind•behind在后面ontheleft•ontheleft表示在左边ontheright•ontheright表示在右边acrossfrom=opposite•acrossfrom表示在对面street/riverThereisapigacrossfromthebird.LucyLilyMarySunnyKittybetweennexttoTommyinfrontofbehindonaboveoverbelowunderbeneath几组表示位置关系的介词比较D．典型例题：1.JapanisintheeastofAsia.（包含）2.JapanistotheeastofChina.（相离）3.KoreaisonthenortheastofChina.（相邻）巩固练习：1.BisintheeastofA.2.DistotheeastofA.3.CisontheeastofA.CBADnortheastsouthwest1.TaiwanisoneoftheprovincesofChinaanditis_____ofChina.A.inthenortheastB.inthesoutheastC.totheeastD.tothesouth2.Chinalies__theeastofAsiaand___thenorthofAustralia.A.to;toB.in;toC.to;inD.in;onBBfall/jumpoffthetreeinthetreeonthetreeTask3:Runquickly!throughacrossupdownoverroundPrepositionsofmovement横穿从内部穿过6.Therearemanyapples___thetree.Abird___thetreeispickinganapple.A.in;onB.on;inC.in;atD.to;of7.TheYoungPioneerswalked___thegateswithUncleWang.A.throughB.acrossC.overD.afterBA•besides意为“除……之外(包含)”•except意为“除……之外(不包含在内)”除了这支,我还有一支蓝色钢笔。(共2支)2.Weallpassedtheexam______Tom.除了汤姆,我们都通过了考试。(汤姆不合格)1.Ihaveanotherbluepen______thisone.besidesexcept1.在墙上onthewall/在…的另一边ontheothersideof/在左边/右边ontheleft/right2.在左/有手边ontheleft/righthandside/在火车上onthetrain3.在电视/收音机/电话/网上onTV/theradio/thetelephone/theInternet4.固定用法：访问…onavisitto…/展览onshow5.在去…的路上onthewayto…6.onmyhead/nose表示附着在表面上，覆盖等，表示接触的面上、边上、线上，用on。比较：aholeinthefloor/wallTherearemanyapplesonthetree.Therearemanybirdsinthetree.1.在…的尽头attheendof/在大门口atthegate/在第二个十字路口atthesecondcrossing2.在公共汽车站atthebusstop/在校读书atschool/在家athome3.在医院诊所atthedoctor’s/在……头部/脚下atthehead/footof4.atthestation/airport/zoo/postoffice5.atthefrontdoor/atthecinema/supermarket/meeting/party/thecrossroad6.固定用法：stayathome/atwork/attable在吃饭表示较小的地方，表示空间的某一点，出入口等，选at1.at(在……小地方)/in（在……大地方）/on（在……表面之上）2.between…and(两者)among(三者以上)3.in（范围内）/to（范围外）/on（相邻）4.above（之上，高于）/over（垂直上方）/on在……上面5.by就在旁边/beside近旁紧靠=nextto/near附近6.across(从表面穿过)/through（从内部穿过）7.onto/into(强调运动变化)on/in（表示位置改变）Summary•1.2.3.•4.5.6.7.•8.9.9.•10.•11in在……里面OnAboveover在……表面在……上方在……正上方belowunder在……下面在……正下面infrontofbefore在……前面behind在……后面Betweenamong在两者之间在三者或者三者以上之间beside/bynearnextto在……旁边在……附近紧靠……的旁边GoodbyeClass!