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介词介词是表示名词，代词和句中其他词之间关系的词，主要表示地点，位置，时间和方式等。Whatcanyouseeinthepicture?你在照片里看到了什么？IwasbornonMay11th.我出生在5月11日。Thelibraryisnearthepostoffice.图书馆在邮局附近。常用介词及用法1.表示时间的介词。英语里最常见的时间介词有：at,in,on,before,after和from.(1)at,on和in都表示时间。at指具体的时间点。athalfpastseven.在七点半。ateleveno’clockatnoon（中午）atthattime（那时）on指在具体的某一天。onSunday.在星期天。OnApril,1st在四月一日onSundayafternoon在星期天的早上onawarmmorninginApril(在四月的一个温暖的早晨)onNewYear’sday(新年)in一般指某一段时间。inApril在四月份inthemorning/afternoon/evening.in2013,inMay,2005（在2005年五月）;inthreedays（三天之后）;inSpring;inthe21stcentury（在21世纪）(2)before和after表示时间的先后顺序。before表示“在…..之前”Washyourhandsbeforedinner.Ihavetofinishmyhomeworkbefore10o’clock..after表示“在….之后”，Theyoftenplayfootballafterschool.MyfatheroftenwatchesTVafterdinner.(3)from表示时间时，常和to连用，构成from…to…的结构，表示“从…..到…..”的意思。Hekeptonworkingfromseventotwelvelastnight.他昨晚从起点到12点一直在工作。IgotoschoolfromMondaytoFriday.2.表示方位的介词。(1)on,over和above相同点：三者均有“在….上面”的意思。不同点：on表示两个物体的表面相互接触。over表示“在….的正上方”，两个物体的表面没有接触。above表示两个物体中一个在另一个的上方，但不一定垂直，两个物体间也没有接触。Thereisabookonthedesk.桌子上有一本书。Theskyisoverourheads.天在我们的头顶上。Theplaneisflyingaboveclouds.飞机在云上飞行。（2）under和below相同点：两者均表示“在….的下面”的意思。不同点：under表示“在….的正下方”，其反义词是over.overunderThereisaballovertwoboxes.ThereisaballunderaboxThereisabridgeovertheriver.below表示“在…..的下面”，但只是低于某一点，不强调是否在正下方。Fromthetopofthehill,wecouldseetheblueoceanbelow.Thedeadseaisbelowsealevel.(3)in表示位置，意为“在…里面”，也可以用来表示在一个很大的空间内。Maryworksinabank.Thereisn’tacloudinthesky.What’sinthebox?Heputhishandsinhispockets.(4)at表示“在某地点”。Iwillwaitforyouatthestation.(5)around和about均表示“在…周围”。Theysataroundthetable.Wewalkedaboutthetown.(6)behind表示“在…..的后面”。Thereisabroombehindthedoor.(7)infrontof表示“在……的前面”。Thereisanewwhitecarinfrontofthehouse.(8)between表示“在两者之间”。Mybedroomisbetweenmytwosisters’.(9)表示“在某地”时，at后面接小地方，in后接大地方。如：athome在家atthebusstop在汽车站inChina在中国intheworld在世界上3.表示动向的介词。(1)into和outofinto表示“从外向里”的意思；outof表示“从里向外”的意思。Isawthemgointothehouse.Lilyranoutoftheclassroom.(2)up和downup表示“向上”，down表示“向下”。Weclimbedupthemountaintothetop.Sheopenedthedoorandwentdownthestairs.(3)across和through相同点：两者都表示“通过，穿过”的意思。不同点：across表示“穿过”这一动作在某个物体的表面进行。Hewalkedacrosstheroadcarefully.Theduckisswimmingacrosstheriver.Heisswimmingacrossthepool.through.表示“穿过”这一动作在某个物体的空间内进行。Shewalkedthroughtheforestalone.Thetrainisgoingthroughthetunnel(隧道)。Hewantstoclimbintotheroomthroughthewindow.4.表示方式的介词表示方式的介词主要有by,with,in等。(1)by表示“靠，用”。Mymothergoestoworkbybus.(2)with表示“使用，和….一起；有，具有，带有”。Hecutthecakewithaknife.(3)in表示“用某种语言，以某种方式”。ShecanspeakinJapanese基础训练一选择括号内恰当的介词填空。1.Children’sDayis_____________(at/on/in)the1stofJune.2.Thegirl_____________(with/on/in)longhairismysister.3.Tomdoesn’tdowell_________(at/on/in)math.4.Lookatthemonkeys____________(between/on/in)thetree.5.Wehaveskirts_________(under/behind/in)red,greenandwhite.Whatcolordoyoulike？6.Tomsellshiscomputergame____________(with/for/to)me.7.Sheisafriend________(of/to/on)mysisters’.8.Here’sanicepicture___________(with/to/for)you.9.Pleasecallme____________(at/to/with)23479865.10.What’sthis_________(at,on,in)English?二单项选择()1.—What’sthis_________English?—It’sanapple.A.onB.inC.atD.of()2.Lily,canyougoshopping______me?A.nearB.atC.withD.from()3.Englishisspoken________American.A.inB.atC.byD.with()4.Itoftenrains_______June.A.ofB.inC.atD.on()5.Theyarewaitingforabus_________thebusstop.A.inB.toC.onD.at()6.—Whatdidyoudo_______thefarm?—Weplantedsometreesforthefarmers.A.onB.inC.atD.to()7.Thegirl________whiteandredismysisterKate.A.forB.ofC.inD.with()8.Thewaterway(运河)iswideenoughformanyshipstopass_________.A.aboveB.acrossC.crossD.through()9.Writethenumbers_______10________30ontheblackboard.A.from;inB.between;andC.behind;andD.among;in()10.Thechildrenareplanning__________theirclassproject.A.ofB.forC.withD.about()11.Tomwasborn_______Aprilthe1st,andIwasborn_______April,too.A.in;inB.in;onC.on;inD.on;on()12.IsPolly________thetree?A.atB.inC.onD.after()13.Doesyourmothercook_______you_____theweekend?A.for;onB.for;atC.with;onD.to;at()14.Igetup______aboutsevenfiftyfive.A.inB.onC.atD.for()15.It’scold________winterinShenYang.A.atB.inC.onD.to()16.What’swrong________yourbike?A.inB.onC.atD.with()17.Thanks_________yourhelp.A.toB.forC.inD.on()18.Iknowthename_______thegirl.A.inB.onC.of()19.—Ishisbook________thedrawer?—No，it’s_______thedesk.A.in,inB.on,onC.at,onD.in,on()20.Bobwasborn_______May12th,1999.A.inB.atC.onD.mustn’t三、找出句中错误的一项并改正。1.Therearetwopicturesinthewall.ABCD()改为__________________2.Sheusuallygoestoschoolonbus.ABCD()改为___________3.Whatcanyouseeonthepicture?ABCD()改为____________4.MygrandmotherwentshoppingandmysisterlastSunday.ABCD()改为_______________5.CanyouwriteitonChinese?ABCD()改为_________________