1、四级常用词根及前缀、后缀1.常用词干（68个）ag, act 做 agent, active; aster, astro 星 disaster, astronomy;audi 听 audience, audio-visual(AV) ; cap,cept,ceive 拿、取 capture, receive;bio 生命 biochemist, antibiotic; cede,ceed,cess 行、移动 procedure, successive;cide, cis 切，杀 suicide, decision; clued, clus 闭合 include, exclusion;cur,
2、curr 跑 occur, currency; cred 相信 creditor, incredible;cycle 圆、环 bicycle, recycle; fac,fic,fect,fact 做、制 affect,fiction,infect;dict, dic 说 dictionary, indication; duct, duc 引导 educate, conduct, prouuce;fer 运送、带 transfer, conference; flect, flex 弯、曲 reflect, flexible;flu 流 fluid, influence, fluent; gen
3、 起源、种类、人种 intelligence, generation;geo 地球、土地 geography,geometry; grad, gress 走 gradual, aggressive;gram 写、记录 grammar, telegram; graph 写、记录; photo 光 photograph;ject 投、掷、抛 reject, project, injection;med 中间 immediately, medium;lect, leg 挑选、采集、读 elect, collect, legend;mob, mot, mov 移动 automobile, promot
4、emani,manu 手 manual, manipulate; miss,mit 送、派、放开 transmit, permit;pel 推、逐 expel, propeller; pend 悬挂 indispensable, suspend;phon 声 microphone, phoney; pon, pos 放置 postpone, compose;port 搬运、带 transport, portable; rupt 裂、破坏 interrupt, rupture;scribe 写 describe, prescribe; spec, spect,spic 看 perspective
5、, respective;volv 转、滚动 revolve, revolution; tract 拖、拉、吸引 tractor, attract, distraction;vid, vis 看见 evident, invisible; tend,tens,tent 伸张、倾向 extend, intense2.常用前缀（49个）anti-反、抗、对立 antisocial, antibody; auto-自己/动的 autobiography, autonomous;be-使得、视作 become, belittle; bi-两，双面 bilingual, bimonthly;centi-百
6、 century, centigrade; co-共同，联合 coordinate, cooperate;con-,col-,com-,cor-与、和、共、全 colleague, combination, conform, coordinate;contra-相反、针对 contradiction,contrary;counter-反、逆对、等 counteract, counterpartde-取消、脱离、向下 decline, departure;dis-否定、除去 discriminate, disorder;en(m)-使成为、使进入 enable, enclose; ex-向外、出
7、自、超出、离开 exceed, excludeextra-越出、超过 extraordinary, extreme;fore-前面、预先 forehead, forecast;in(m)-,il-,ir-不，无，非 illegal, important;in-在 里，内部 inclusive, indoor;inter-互相、在 中间 interaction, intervene;intra(o)-内部、向内 introduce, introvertmacro-大的、宏观的 macroeconomics; mal-坏、恶、不良 maltreat, malnutritionmicro-微小的、微
8、量的 microphone, microwave;mid-中部、当中 midland, midwife;mini-极小的、极短的 minibus, minimum; mis-错、不当、相反 misery, mismatchmono-一、单一的 monotonous, monopoly; multi-多倍的 multiple, multitude;non-非、无、不 nonsense, non-stop; out-超出、在外 outstanding, outlive;over-在上面、越过 overwhelming, overtake; poly-多，众 polysyllable, polyte
9、chnic;post-后 postgraduate, postpone; pre-预先、前 precedence, predominant;psudo-伪、假、拟 pseudonym, pseudoscience;re-又、再、往后 replace, replenish;semi-半、部分的 semiconductor, semi sphere;sub-下一级、次要 subordinate, substitutesuper-上方的、超过的 superfluous, supervisor; tele-远的、远距离 telephone, telescopetherm(o)-热、热电的 thermo
10、s, thermometer; trans-横越、通过 transplant, transmit;tri-三、三次 tricycle, triangle, triple; ultra-在 之外、极端、过分 ultraviolet, ultrasonic;un-不、非、相反 unknown, unsay; uni-单、一 uniform, unity, universal;vice-代替、代理、付 vice-president, vice-principal.3.常用后缀（63个）1）n.后缀（33个）-age 状态、行为、集合 shortage, baggage; -al 动作、人、事物 re
11、fusal, professional-ance, -ence 状态、性质、行为 entrance, reliance, correspondence;-ant, -ent 人，物 inhabitant, pollutant; -ar, -er, -or 人 banker, scholar, sailor;-ery, -ary, -ory,-ry 人、地点、学科、集合 secretary, library, history, shrubbery, scenery;-dom 范围、状态 kingdom, freedom; -ee 动作的承受者 refugee, referee;-eer 从事的人
12、 engineer; -ese 某国的人、预言 Japanese;-ess 女性 hostess, actress; -hood 状况 livelihood, neighborhood;-ian 人 magician, physician; -ics 学科 linguistics, athletics;-(s)ion,-(a)tion 状况、行为 presentation, intuition;-ism 主义 materialism, optimism; -ist 主义者 dentist, Buddhist-th 结果、过程 length, warmth; -(i)ty 多抽象名词的性质、状态
13、 ability, loyalty;-ment 行为、状态、性质 enjoyment, argument, government, payment;-ness 性质、状态 sickness, blindness; -ology 学科 psychology, physiology;-ship 性质、状况、状态 hardship, leadership;-ure 性质、状况、状态 pleasure, pressure;2）v.后缀（7个）-ate 使irritate, originate;-ize, -ise, -yze, -yse化 modernize, normalize, analyze;-
14、en 使变成 sharpen, hasten, lengthen;-ify 使 成，使 化 simplify, amplify, diversify;3）adj. 后缀（ 20个）-able, -ible 能（为） 的 sensible, permissible;-al 具有性质的 ignorant, consistent, passionate, fortunate;-ary, -ory 与相关的 imaginary, obligatory; -ed 有的 wooded, pleased;-en 有质的，似 的 wooden, golden; -free 免于的 carefree, duty
15、-free;-ic(al)类似 的，具有的 poetic, energetic;-ful 充满的 cheerful, faithful;-ive 表倾向，关系，特征 collective, destructive;-ish 似的 childish, selfish, foolish;-less 没的 shameless, fearless; -like 似的 womanlike, warlike;-ly 有 特征的 roughly, leisurely; -ous 充满的 dangerous, precious;-some 有 性质的 burdensome, lonesome;-ward 表举止、方向 awkward, eastward; -y 状态、性质、行为 sunny, thirsty;4）adv. 后缀（ 3个）-ward(s)方向 straightforward; -ly地（状态、成都、性质、方式）consequently;-wise 方向、位置 likewise, counter-clockwise;
