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1、英语常用前缀、后缀和词根2011/9USST20PartI前缀前缀改变词义1.a,ab,ac,ad,ag,al,ap,ar,as,at=to,at,for表示加强、附加、增加、方向、变化、完成abandon=a+ban(禁止)+onvt.放弃Theyhadtoabandontheship.abbreviate=ab(to)+brev(brief)vt.缩短，缩写accept=ac+cept(totake取)vt.接受achieve=a+chieve(chief)vt.获得，取得acquire=ac+quire(to
2、seek追求)v.获得（知识、技能）cf.inquire=in+quirev.探问require=re+quirevt.要求admire=ad+mire(towonder←miracle)v.赞赏，敬仰→admirable,admireradvance=adv+ance(before先前)vi.前进aggressive=ag+gress(towalk行走)+iveadj.有侵略性的→aggressionn.侵略aloud=a+loudadv.大声地allocate=al+locate(toplace定位)v.分配，
3、指派apply=ap+ply(tofold)vt.应用，申请arise=a+risev.出现，产生Newproblemsariseonebyone.arouse=a+rouse(rise)vt.唤醒Theorangecolorcanarouseappetite.cf.Raiseupyourhands!Thesunhasrisenup.arrange=ar+range(torank排位)vt.安排，整理arrest=ar+re(back)+st(tostand)vt.逮捕attract=at+tract(todraw
4、拉，拽)vt.吸引await=a+waitvt.等待~sbawake=a+wakevt.唤醒~thesleepinglion2.ab,abs,ad=off,away.from离开，避开abnormal=ab+normaladj.反常的abortion=a+bor(tobeborn)+tionn.堕胎absorb=ab+sorb(tosuckup吸吮)v.吸收，吸取abuse=ab+usevt.滥用abrupt=ab+ruptadj.突然的abstract=abs+tractadj.抽象的n.摘要abundant=a
5、b+und(bound束缚)+antadj.丰富的3.anti=against,oppositeto(与pro-相反)anti-abortionistn.反堕胎者anti-communistadj.反共的anti-Japaneseadj.the~War抗日战争anti-socialyoungmen反社会的年轻人4.bene=good,wellbenefit=bene+fit(=fact=do)做好事→vt.有益于beneficialadj.有益的benevolent=bene+vol(wish)+entadj.慈善
6、的bonusn.奖金，红利（英语中的better,best与此词根有关）5.bi=double,two成双的，两个的bicycle=bi+cycle(圈)n.双轮车→自行车bilingual=bi+lingua(language语言)adj.双语的bimonthly=bi+month+lyadj.双月的n.双月刊biweekly=bi+week+lyadj.双周的n.双周刊6.dua,duo=double,twodoubleadj.双重的,v.使加倍doubt=beoftwominds(二心不定)vt.,n.怀疑d
7、ozen=do(du)+zen(ten)=2+10=12n.一打dual=du+al(形容词词尾)adj.二重的，两层的Shehasdualnationality.双重国籍dueln.决斗duetn.二重唱，二重奏Theyplayedaduet.7.twi=twotwiceadj.两次twilight=lightbetweendayandnightn.清晨;黄昏twinn.双生子twist=两股绳子绞在一起v.扭曲，缠卷8.tri=threetrianglen.三角triben.部落tricyclen.三轮车tri
8、plev.使成三倍n.三倍的Theproductiontripled.9.qua,quadr=fourquarter→一小时的四分之一=一刻钟quartetn.四重奏quarterlyn.季刊10.circum=around,roundaboutcirclen.圆圈circulatevi.流通20circularadj.循环的circuitn.一圈，一周；电
