常用英语词根
    常用英语单词词根大全
    1) dis(not, the opposite of)
    disadvantage,dislike,disagree,disapperd,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, ine, 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, inplete, 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) , , ir- -
    (not)
    illegal, illiterate, illogical
    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- -semicircle
    (n ot)
    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 , predict predecessor,, 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) e__ -
    (out, out of, former)
    e__minister, e__president, e__Soviet Union,e__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, refle
xion, 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-, -, con-, cor- (with together) co-existence, cooperative , co-author, coalition , coherent , coincide , coincidence , collaboration , colleague, collide , collision, collocation, passion, passionate, concentric, confederation, conjoin, coordinate, correlate, correlation, correspond 18) inter- (between, among) interchange, interchangeable, interdependent, interpersonal, interview, interact , interaction, intercourse , interface

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