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常用英语单词词根大全

3G雅思网来源：3G雅思论坛 编辑：admin 时间：2006年5月18日

1) dis(not, the opposite of) disadvantage, dislike, disagree, disappear, disarm, disaster, disastrous, disappoint, disable, disability, discharge, disclose, discount, discourage, discover, discovery, discrepancy, disease, disgrace, disguise, disgust, dishonor, dishonest, dislike, dismay, disorder, dispatch, disperse, displace, displacement, displease, disregard, dissatisfy, distort , distract, disintegrate, isparage, dispassion, disproportionate 2) in- (not, in, into) inability, incorrect, inability, incapable, indirect, inhuman, injustice, informal, inside, include, inclusive, income, increase, increasingly, incredible, indefinite, independence, independent, indifferent, indirect, indispensable, individual, indoor, inertia , inevitable, infamous , infinite, inhabit , inhabitant, inherent , inject, inland , inlet , inner, innocent, innumerable , input, inquire, inquiry, insane, insensitive, insert, inside, insight, insist, inspect, inspiration , inspire, install, installation, installment , instance, instant, instinct, insulate , intense, interior, internal, into, intrinsic, invade, invalid , invaluable , invariably , invasion, invert , investigate, invisible, involve, inward, incomplete, indecisive, inedible, inept, inevitably, infection, infirm, injection, innate, insatiable, insecurity, insider, insidious 3) im- (not, in, into) impossible, imbalance, immature, immoral, impatient, implicit , impress, impression, import, immigrate, imprison, immerse 4) il- (not) illegal, illiterate, illogical ir- (not) irregular, irresponsible, irrespective 5) un- (not) unable, uncover, undo, undoubtedly, undress , uneasy, unemployment , unexpected, unfold , unfortunately, unimportant, unlike, unload, unusual, unaware, enlightened, unparalleled, unsustainable, 6) non- (not) nonsmoker, nonexistence, non-cooperation, nonstop, nonmetal, nonresident, nonsense, nonfundamentalist, nonspecialist 7) mis- (wrong, wrongly) mislead, misspell, misstep, misfortune, misuse, misguided, misinformation 8) de- (showing the opposite, to remove, to reduce) deform, deface, demobilize, destruction, deforest, denationalize, depress, depression, decode, decrease, degenerate , degrade , descend, descendant , descent 9) pre- (before, in advance) prefix, pre-historic, precaution, precede , preceding, preclude , predecessor , predict, predominant , preface, prejudice, preliminary, premature , premier , premise , premium , preparation, prepare, prepay, preside , president, presumably, presume , pretext , prevail, prevent, previous, prewar, preconception, prediction, prescientific, presumptively 10) ante-, (before, in advance) anteroom, ante-Christian, antemeridian, anticipate, antique 11) fore- (in advance, before, in or at the front) forearm, forehead, foreman, foretell , foresee , forefather , foreleg, forerunner , fore , foremost, forecast, forewarn 12) ex- (out, out of, former) ex-minister, ex-president, ex-Soviet Union, ex-wife, export, exclude, exclusive, excursion, exhibit, exile , exit, exotic , expand, expansion, expedition , expel , expend , expenditure , expense, explode, explosion, explosive, expose, exposition , exposure, express, expression, extend, extension, extensive, exterior, external, extinct, extra, extract 13) post- (later than, after) postgraduate, postwar, postmeridian, postpone, postscript 14) sub- (under, below, less important) sub, subject, subway, subtitle, subdivide, submarine , sub-zero, submerge, submit, subordinate , subscribe , subsection, subsequent, subsidiary , subsidy , substance, substantial, substitute, subtract, suburb, subconsciously, subtly 15) infra- (below in a range, beyond) infrastructure , infrared 16) re- (again, back to a former state) react, reaction, recall, recede , receipt, recipient , reclaim , recognize, recognition, record, recorder, recover, recovery, recreation, recur , recycle , redundant , reflect, reflection, reflexion, reform, refrain , refresh, refreshment , refund , refute , reinforce, reject, remember, remind, removal, remove, renaissance , renew, repay , repeat, repeatedly, repel , repetition, replace, replacement, represent, representative, repression , reproduce, respect, respond, response, responsibility, responsible, restore, resume, return, reunion , revise, revive 17) co-, col-, com-, con-, cor- (with together) co-existence, cooperative , co-author, coalition , coherent , coincide , coincidence , collaboration , colleague, collide , collision, collocation, compassion, compassionate, concentric, confederation, conjoin, coordinate, correlate, correlation, correspond 18) inter- (between, among) interchange, interchangeable, interdependent, interpersonal, interview, interact , interaction, intercourse , interface , interfere, interference, Internet, interrupt, interval, intervene 19) macro- (large) macroeconomics , macrocosm , macrostructure 20) micro- (extremely small) microcomputer, microeconomics , microscope, microphone, microsurgery, microelectronics, microbiologist 21) super- (greater or more than) super, supermarket, supersonic , superman, superpower, supernatural, supervise , superb, superficial, superintendent , superior, superiority , supreme, supersystem 22) sur- (more than, beyond) surplus, surtax, surface, surpass , surround, survival, survive, suspect 23) ultra- (beyond, very, too) ultramodern, ultrasound, ultra-violet 24) auto- (of or by oneself) auto, autocriticism, autoland, automobile, automation , automatic, autobiography , autonomous , autonomy 25) mal- (bad, badly) malfunction, maltreat , malnutrition , malpractice 26) tele- (at or over a long distance, by or for television) telegram, television, telegraph, telephone, telecommunications , telescope, telescreen, teleswitch, televise 28) semi-, hemi- (half) semicircle, semiconductor, semi-colony , semifinal, hemisphere 29) uni-, mono- (one) uniform, unify , union, unique, unit, unite, unity, universe, universal, university, monologue , monoplane, monopoly , monotone, monotonous , carbon monoxide 30) bi-, di- (two) biweekly, bicycle, bilateral , billion, bilingual, dialogue, carbon dioxide 31) tri- (three) tricycle , triangle, triangular, trilogy , triple, trigonometry 32) quadri-, quadru- (four) quadruple, quadrangle 33) penta- (five) pentagon, Pentagon, Pentium 34) hexa- (six) hexagon, hexangular mill- (thousand) millennium, millimeter 35) sept- (seven) September, Sept-Wolves nona- (nine) nonagon, November 36) octa- (eight) octagon, octave, octopus, October 38) deci-, deca- (ten) decade, decimal 39) centi- (hundredth part) centigrade, centimeter, centipede, century 40) kilo- (thousand) kilo, kilometer, kilogram (me), kilowatt 42) multi- (many) multipurpose, multinational, multiple, multiply, multitude 43)counter-,anti-,contra- (opposite, against counteract, counterattack, counterclockwise, counterrevolutionary, antibiotic, antigravity, antimatter, antiwar, antinuclear, contradict , contradiction, contramissile, contranatural, contrary, contrast, anticonsumerism 44) mini- (smallest, short) minibus, miniskirt, minimum, minister, ministry, minor, minority, minute 45) max- (greatest) maximum, maximal, maximize 46) out- (outside, beyond) outdo, outwit, outlive, outnumber, outdoor, outstanding, outskirts , outward, outcome, outer, outing , outline, outlook, output, outrage , outside 47) over- (too much, above, additional) overwork, overuse, overtake, overpass , overthrow , overturn , overall, overdue , overhead, overhear , overlook, overseas, overtime 48) trans- (across, on or to the other side of) transaction , transatlantic, transcend , transfer, transform, transistor , transit , transition , translate, translation, transmission, transmit, transmitter, transparent, transplant, transport, transportation 49) under- (too little, below) underdevelop, underdevelopment, underestimate, undergraduate, underground, underlie , underline, undersea, underlying , undermine , underneath, underwear 50) neo- (new) neo-Nazism, neolithic 51) be- (cause to be or have) befriend, belittle 52) bio- (life) biology, biography , autobiography, antibiotic, biochemistry, biosphere, biomedical 53) en- em- (cause to become, put into the stated condition) embody, empower, endanger, enlarge, enrich, encompass, enthrone, entrench 54) extra- (outside, beyond) extracurricular, extraordinary 55) mid- (middle) midday, midnight 56) poly- (many) polycentric, polydirectional, polysyllabic 57) pseudo- (not real, false) pseudomemory, pseudonym, pseudoscience 58) thermo- (heat) thermochemistry, thermometer 59) vice- (next in rank below) vice-chairman, vice-president 60) aero- (air) aerial , aeroplane, aeronautics, aerospace 61) cross- (across, going between the stated things and joining them) cross-country, crossbreed 62) intra- (inside, within; into) intracity, intra-department, intranet 63) pro- (in favor of, supporting) pro-America, pro-abortion 64) self- self-employed, self-taught 65) step- (not by birth but through a parent who has remarried) stepmother, stepchildren