1) aer, ar, 含义是“空气，大气” aeroplane, aerial,

　　2) ag, act, ig, 含义是“做，动作” active, agent, reaction,

　　3) alt, 含义是“高”， altitude,

　　4) alter, altern, altr, 含义是“其它，变更” alternate,

　　5) bio, bi, bion, 含义是“生物，生命” biol**y, bionics(仿生学)

　　6) brev, bri, brief, 含义是“短” brief, abbreviation, abridge(节略)

　　7) cap, capt, cept, cip, 含义是“取，获” capture, except, concept, capacity

　　8) ced, ceed, cess, 含义是“行，让步” proceed, succeed, excess(过度)

　　9) centr, centr, 含义是“中心” concentrate, eccentric(偏心的)

　　10) clain, clam, 含义是“呼喊” claim, proclaim, exclaim

　　11) clos, clud, 含义是“闭合” conclude, enclose, include

　　12) col, cult, 含义是“耕耘” colony, cultivate, agriculture

　　13) cor, cord, 含义是“心” cordial, record, accord

　　14) curr, cur, cour, 含义是“跑，动作” current, occur, concurrence(同时发生)

　　15) dic, dict, 含义是“说，示” dictate, edit, indicate, predict

　　16) doc, doct, 含义是“教” doctor, document.nbsp

　　17) duc, duct含义是“引导，传导” introduce, produce, conduct, deduct( 推论)

　　18) fact, fac, fect, dic, dit, 含义是“做，创造” factory, effect, profit, faculty,  perfect

　　19) fend, fens, 含义是“打，击” defence, offence

　　20) fer, 含义是“搬运，移转” ferry, transfer, defer(迟延)

　　21) fin, finit, 含义是“终，极” final, finish, confine

　　22) firm, 含义是“坚固” firm, confirm, affirm(断定)

　　23) fix, 含义是“固定” prefix, affix(附加)

　　24) flect, flex, 含义是“弯曲” flexible, reflex

　　25) flor, flour, flower, 含义是“花” flower, flourish

　　26) form, 含义是“形” uniform, formula, transform, reform, deform

　　27) forc, fort, 含义是“力，强度” force, enforce, effort

　　28) gen, genit, 含义是“生产，发生” generate, generation

　　29) gram, graph, 含义是“书写，记录” telegram, diagram, phot**raph

　　30) grad, gress, gred, gree, 含义是“步，阶段” gradually, degree, pr**ress

　　31) hab, habit, hibit, 含义是“保持，住” inhabit, exhibit, prohibit

　　32) her, hes, 含义是“粘附” adhere, cohesion

　　33) ject, jet, 含义是“抛射” project, inject

　　34) jour, 含义是“日，一天” journal(日记), journey, adjourn(延期)

　　35) jug, junct, 含义是“结合，连合” conjunction, junction(连合)

　　36) labour, labor, 含义是“劳动，工作” labourer, elaborate, collaborate

　　37) lect, leg, lig, 含义是“挑选，采集” collect, select, lecture

　　38) lif, liv, 含义是“生活，生存” life, alive, live

　　39) loc, 含义是“场所，位置” location, dislocate(脱位)

　　40) long, leng, ling, 含义是“长的” length, prolong, linger

　　41) loqu, locut, 含义是“说话” colloquial, eloquent,

　　42) mand, mend, 含义是“命令” command, demand, recommend

　　43) man, manu, 含义是“手，手法” manage, manual

　　44) memor, menber, 含义是“记忆” memory, remember, memorial

　　45) mind, ment, 含义是“心” mind, remind, mental

　　46) merc, merch, 含义是“贸易” commerce, merchant

　　47) meas, mens, meter, metr, 含义是“测量，度量” measure, meter, diameter

　　48) min, 含义是“小” diminish, minority

　　49) miss, mit, 含义是“派遣，送” mission, dismiss, transmit, missile

　　50) mob, mot, mov, 含义是“动” movement, motion, mobile, remove

　　51) nect, nex, 含义是“捆扎” connect, disconnect, annex(合并)

　　52) not, 含义是“记号，注意” note, denote, annotation(注释)

　　53) onom, onym, 含义是“名字” synonym, antonym, anonymous

　　54) pair, par, 含义是“a)相同，对等b)准备” compare, prepare

　　55) pel, puls, 含义是“追逐” expel, impel(推进)

　　56) pend, pens, pond, 含义是“悬挂” depend, independent, expense(支付)

　　57) phon, 含义是“声音” symphony, telephone, microphone

　　58) plac, 含义是“位置，场所” place, replace

　　59) peopl, popul, publ, 含义是“人民，民众” public, republic, popular, people

　　60) port, 含义是“搬运” export, import, deport(输送)

　　61) press, 含义是“压，压制” pressure, express, oppress, impression

　　62) prob, proof, prov, 含义是“实验，验证” prove, approve,

　　63) quer, quest, quir, quis, 含义是“寻找，探问” inquiry, question,  inquisition(调查，追究)

　　64) rang, rank, 含义是“排列” arrange, rank,

　　65) rect, right, rig, 含义是“正，直” correct, direct, erect

　　66) riv, 含义是“河流，流远”，river, arrive, derive

　　67) rupt, 含义是“破坏，毁坏” eruption, bankrupt, corruption

　　68) sci, 含义是“认识，知识” science, conscious

　　69) scrib, script, 含义是“书写，记录” describe, script

　　70) sens, sent, 含义是“感觉，情感” sensation, sentiment

　　71) sign, 含义是“标记，符号” signal, signature, design

　　72) sembl, simil, 含义是“相似，类似” similar, resemble, assimilate(同化)

　　73) soci, 含义是“结合，社交” social, association

　　74) spec, spect, spitc, spis, 含义是“看，视” inspect, spectator, conspicuous,  respect

　　75) struct, 含义是“建筑，构造” structure, construct, instruct, destruction

　　76) tect, teg, 含义是“遮蔽，掩盖” detect, protect

　　77) temp, tens, 含义是“时间，时机” tense, contemporary, temporal

　　78) tend, tes, tent, 含义是“倾向, 伸张” tendency, intension, extend, intend

　　79) test, 含义是“证明，证实” testify, protest, contest(争论)

　　80) text, 含义是“编织， 构成” textile, texture, context

　　81) tract, trail, 含义是“拖拉，吸引” attract, tractor, abstract, contract(收缩)

　　82) tribut, 含义是“给予” contribution, distribute

　　83) us, ut, 含义是“用，使用” usable, utilize, abuse

　　84) vac, van, 含义是“空，虚” vacancy, vanity, evacuate(清空)

　　85) vad, vas, wad, 含义是“走，去” invade, wade, evade(逃避)

　　86) vers, vert, 含义是“旋转，反转” convert, inversion(倒转)， reverse, divert(使转向)

　　87) vid, vis, vey, view, 含义是“观看，看见” television, visible, evident,  interview, survey

　　88) viv, vit, 含义是“生，活” vivid, vital, survival,

　　89) war, ward, 含义是“注意，保护” aware, wary(谨慎)， ward(守护)

　　90) way, 含义是“路” way, away, subway, always

　　以上是托福阅读词汇：常见前缀总结，大家可以根据前缀猜测词义，这样背单词就会容易一些。