英语最常用的29个前缀和25个词根

SAT/GRE/TOFEL/考研 英语单词必备词根词缀

Many studies show the importance of building children’s vocabulary. One study has shown that a set of 20 prefixes and 14 roots, and knowing how to use them, will unlock the meaning of over 100,000 words. A similar study showed that a set of 29 prefixes and 25 roots will give the

meaning to over 125,000 words. Imagine adding suffixes! Below are lists of prefixes, suffixes, and roots – with their meanings and example words. Reviewing these also can help many ELL

students to see relationships between and among languages. Many prefixes have a basis in Latin – also the basis for Spanish, French, and Italian – or Greek.

Building Vocabulary: Prefixes, Roots, and Suffixes

Table 1: 32 Prefixes a, ab, abs ad, a, ac, af, ag, an, ar, at, as anti bi, bis circum, cir com, con, co, col de dis, dif, di epi equ, equi ex, e, ef in, il, ir, im, en in, il, ig, ir, im

away from to, toward against two around with, together opposite of apart upon, on top of equal out, from in, into not

abscond adhere annex attract antisocial biannual biennial

circle contact collect co-worker decline dishonest distant epilogue equitable eject exhale impose ignoble irreversible irritate

abscond – to run away to stick to to add or join to draw near

refers to someone who’s not social twice each year every two years a figure that goes all around to touch together to bring together co-worker

to turn down not honest away

speech at the end, on top of the rest fair, equal to throw out to breathe out to force into not noble not reversible

to put into discomfort

This document revised from Gary Gruber’s work on increasing children’s test scores: Dr. Gary Gruber's Essential Guide to

Test Taking for Kids, Grades 3, 4, & 5. (1986); Dr. Gary Gruber's Essential Guide to Test Taking for Kids, Grades 6, 7, 8, & 9. (1986); and Gruber's Complete Preparation for the SAT (9th Edition, 2001) -- all published by Collins, New York City. Developed by Judith Wilde, PhD for Beta Group – Albuquerque, NM and Arlington, VA (rev 8/06). Reprinted by NCELA with permission. Multiple copies permitted for educational purposes and with this credit line.

SAT/GRE/TOFEL/考研 英语单词必备词根词缀

inter mal, male mis

between, among bad, ill, wrong wrong, badly

interpose malfunction mistake misplace monotone monologue monosyllable nonprofit obvious obviate

omnipotent perceive polygon postmortem prehistoric preface prowar promote recall recede seclude subway subliminal superimpose

to put between fail to function, bad function to get wrong

to put in wrong place one note

speech by one person one syllable

not making a profit

right in front of, apparent

to do away with, make unnecessary all powerful

to become aware through sight figure with many sides after death

before written history

a statement before an article or book supporting the war

to raise or move forward to call back to go back

to stay apart from others a path or way to move under ground below the level of consciousness to put over something else to lie or go across sharing one view having one side not helpful not ethical

mono non ob omni per poly post pre pro re se sub super trans un, uni un

one, alone, single not, the reverse of in front, against, in front of, in the way of everywhere, all through many after

before, earlier than forward, going ahead of, supporting again, back apart

under, less than over, above, greater across one not

transverse unanimous unilateral unhelpful unethical

Developed by Judith Wilde, PhD for Beta Group – Albuquerque, NM and Arlington, VA (rev 8/06). Reprinted by NCELA with permission. Multiple copies permitted for educational purposes and with this credit line.

SAT/GRE/TOFEL/考研 英语单词必备词根词缀

Table 2: 27 Roots act, ag bas

cap, capt, cip, cept, ceive ced, cede, ceed, cess cred, credit curr, curs, cours dic, dict duc, duct equ fac, fact, fic, fect, fy fer, ferr graph mit, mis par plic

low

Activity Basement Receive Capable Recipient Access Proceed Incredible Credit Precursory Recourse Indict Indicate Conduct Aqueduct Equanimity Fiction Factory Affect Referral Graphite Missile Disparate Implicate Transpose Compose Deposit Transcript Subscription Sequel

Consecutive Aspect Action

A room that is low To take

Able to take hold of things

One who takes hold or receives Means of going to To go forward Not believable Belief, trust

Running (going) before To run for aid

To say or make an accusation

To point out or say by demonstrating To lead or guide

Pipe that leads water somewhere Evenness of mind, tranquility Something that is made up Place that makes things To make a change in Bring a source for help/information A form of carbon used for writing Something sent through the air No equal, not alike To fold in, to involve

A place across

To put many parts into place To place for safekeeping A written copy

A written signature or document A second, following, book One that follows another One way to see something to do, to act

to take, to hold, to seize

to go, to give in to believe to run to say to lead equal, even to make, to do to carry, bring write to send equal

to fold, to bend, to turn

pon, pos, posit,

to place

pose scrib, script sequ, secu spic

to write to follow

to appear, to look, to see Developed by Judith Wilde, PhD for Beta Group – Albuquerque, NM and Arlington, VA (rev 8/06). Reprinted by NCELA with permission. Multiple copies permitted for educational purposes and with this credit line.

SAT/GRE/TOFEL/考研 英语单词必备词根词缀

Stable Desist Tactile Retentive Maintain Tension Contract Advent Revert Reverse

Steady (standing) To stand away from To be able to be touched Holding

To keep or hold up Stretched

An agreement drawn up A coming To turn back To turn around

tact ten, tent, tain

to touch to hold

tend, tens, tent to stretch

draw ven, vent ver, vert, vers

to come to turn

Table 3: 23 Suffixes able, ible, ble

able to

Salable Vivacious Truancy Respondent Teacher Creator Beneficiary

Civil Infantile Acidic Shifty Showy Laboratory

Able to be sold Having the quality of being lively The act of being truant One who responds or answers One who teaches One who creates

Related to the eye

Connected with one who receives benefits Pertaining to citizens Pertaining to infants Like acid

State of shifting around

State of always showing oneself

A place where work is done

acious, cous, al like, having the quality of ance, ancy ant, ent, er, or

the act of, a state of being one who

ar, ary ic, ac, il, ile ity, ty, y ory

connected with, related to of, like, pertaining to the state of, character of place or thing for

Developed by Judith Wilde, PhD for Beta Group – Albuquerque, NM and Arlington, VA (rev 8/06). Reprinted by NCELA with permission. Multiple copies permitted for educational purposes and with this credit line.

SAT/GRE/TOFEL/考研 英语单词必备词根词缀

ous, ose ship tude y

full of, having

Verbose

Full of words, or wordy

Leadership The ability to lead

to

Aptitude The ability to do

ability to

Full of, somewhat,

Chilly Somewhat cold

somewhat like

Willowy Like a willow

Table 4: Taking words apart Concurrence Irreversible Malediction Unity con: with male: bad uni: one curr: run vers: turning dict: to say ---

ence: act of ible: able to ---

ty: state of at same time Not able to turn back statement

thing or being

Developed by Judith Wilde, PhD for Beta Group – Albuquerque, NM and Arlington, VA (rev 8/06). Reprinted by NCELA with permission. Multiple copies permitted for educational purposes and with this credit line.