英語單詞前后綴及詞根

1、prefix-suffix-root list by grade leveldraft for teacher review 2009-2010the following lists are not all-inclusive, but most common they are a minimum students at each grade level should read and understand how to use and apply by the current school year end. others may be added based on your classro

2、om of studentsprefix a word part added to the beginning of a root or base word to create a new meaning,suffix - a letter or a group of letters added to the end of a root or base word to change its meaning,root the form of a word after all affixes are removed(generally, prefixes and suffixes change t

3、he meanings of roots, but it is usually the suffix that denotes the part of speech.)incorporate prefix, suffix, and roots into working with words study. 1st gradeprefixsuffixdefinitionexampless, -esplural, more than onehats, pigs, books, plays, boxes, wishes, dishes cliffs, roofs, beliefs knives, le

4、aves, halves, selves-ingaction/processhelping, skipping, running, seeing, thinking-edpast tensejumped, helped2nd gradeprefixsuffixdefinitionexamplesun-not/oppositeunlock, unsafe, uncoverre-again/backreread, rewrite, returncycl-circle,wheelbicycle-erperson connected with, comparative degreeteacher, w

5、riter, baker, bigger, colder, taller-estsup erlative degreebiggest, coldest, tallest-fulfull ofbeautiful, painfuljesswithoutcareless, helpless-cian/-istone whomusician/artist3rd gradeprefixsuffixrootdefinitionexamplesin-notinactive, incomeim-notimpossible, improper, importauto-selfautomobiledis-not/

6、opposite ofdislike, distrust, disagreepre-beforepretest, preplan, premadepro-beforeproceedpost-afterpostgraduatetele-far, distanttelephone, telegraph, televisi ondie-say/speakdistationbiolifebiology, biography, biopsy-iesplural, more than oneparties, babies, cries-iedpast tensecried, tried,-edpast t

7、ensestopping, hopping-ingaction/processstopped, hopped-lycharacteristic ofbadly, friendly, quickly-ycharacterized by/likecloudy, fishyformshapeforumularductleadconductorgraphwritetelegraph, photograph, phonograph, autographphonsoundphonograph, symphony, telephone, microphone, phonicsscopeseemicrosco

8、pe, telescope, periscope, stethoscope4th gradeprefixsuffixrootdefinitionexamplesnonnotnonfat, nonsenseover-too much, aboveoverdone, overheadmis-bad or badly wrong or wronglymisbehave, misread, misspellde-reduce down away fromdefeat, deform, decreaseunder-too little/belowunderfed, undergroundbitwobic

9、ycle, binoculartri-threetricycle, trianglequad-fourquadrilateral, quadrantoct-eightoctagon, octopusphotolightphotograph, telephoto, photocopy-er, -orone who, that whichbaker, boxer, conductor, survivor-tionact of, state of, result ofattention, invitation, restriction-al, -ialrelated to characterized

10、 bycolonial, biennial, dental, betrayal-nesscondition, state ofdarkness, fairness-meritact, processenjoyment, replacement-enmade of, to makewooden, dampen, tighten,ruptbreak, burstbankrupt, rapture, disruptiveterrlandterrain, territorygeoearth, ground, soilgeography, geologytractpull, dragtractor, a

11、ttract, subtract, tractionstructbuildconstructmeter, metrmeasurespeedometer, odometer, metric, metronome, thermometer, perimeter, diameter, centimeter5th gradeprefixsuffixrootdefinitionexamplesen-, emto cause to be, to put into or onto, to go into or ontoencounter, enable, employ, embark, encirclesu

12、b-under, beneath, below secondarysubway, subsoil, substituteforebefore, earlierforearm, forewordsemi /hemi-halfsemicircle,semicolon,hemispheresub-underanti-opposite, againstantibiotic, antifreezeauto-selfautograph, automaticextra-outsideextra-largeinter-betweeninternationalmid-middlemid-autumn daymu

13、lti-many/ muchmulticolor, multifamilypoly-many/ muchpolygon, polysyllabledeca- deci-tendecathlon, decade, decimal, decimeterkilo-1,000kilogram, kilowattmilli- mille1,000millennium, millimetercenti-100centimeter, centipede-ion, -tion, -ation, -itionact of/ state of/ result oftension, attention, eleva

14、tion, union-able-iblecan be doneenjoyable, sensible, likable-ive -ative -tiveinclined/ tending toward an actionfestive, talkative, active, sensitive-logy, -ologyscience of/ study ofbiology, chronology-ence-anceact/ condition ofpersistence, excellence, assistance, importance-an, -a none having a cert

15、ain skill/ relating to/ belonging toelectrician, magician, american, suburba njectto throwinject, objection, projectstructto buildconstruct, instructorvisto seevision, evidencevidseevideo, evidence, provide, providencejur jurisjudge, oath lawjury, jurisdictio nlog loguewordprologue, apology, dialogu

16、e, eulogy, monologuepathfeeling/ suffering/ diseaseapathetic, pathologyast astrstarastronaut, astronomy, disaster, asteriskmitto sendemit, transmit, admit, remitaudi (aud)hearaudience, auditorium, audiovisualdietto say, telldiction, dictatorsphereballsphere6th gradeprefixsuffixrootdefinitionexamples

17、in-, il-, im-, ir-notinability, impatient, irregular, illegalaud-hearaudioequi-equalequitableinter-betweenintercept, interview, interstatemig-movemigrateport-carrryportersped-lookspectacularvid-/vis-seevideo/visiblevocvoicevocalmiss-/mit-sentmission/transmittransacross/ change/ throughtransformation

18、, transportation, transfersuper-above/ on top of/ beyondsuperfine, superhuman, supersonicmicro-small/ minutemicrobiology, microscopemacro largeuni-one/ singleunicorn, unicycle, uniformbene-goodbenefitmalbadmalfunctioncontra-againstcontrarypsych-mind,soulpsychologytherm-heatthermometerchrontimechrono

19、logy-ent -antan action/ conditionstudent, contestant, immigrant-entcausing a specificobedient, absorbent,-antactionabundant, elegant-ity -tystate of/ quality ofprosperity, equality-icrelating to/ characterized byenergetic, historic-izeto make/ to cause to becomefertilize, criticize, apologizeageresu

20、lt of an action/ collectionmanage, drainage, acreageous -eous-iousfull of/ characterized byadventurous, nervous, mysterious, courteousportto carryportable, transportscrib scriptto writedescribe, manuscriptspedto see/ watch/ observeprospect, respect, specimenvacemptyvacate, evacuatehydrwaterhydrogen,

21、 hydrant, hydroplanechrontimechronological, synchronize, chronicle, chronicthermheatthermometer, thermostat, thermosbenegood/goodbenefit, benign, beneficialphono-soundphonographmech-machinemechanismmyth-fictionmythologyphoto-lightphotographphil-lovephilosophymono-singlemonorailmeter-measurealtimeter

22、bibl-biblio bookbible/bibliographyvita-lifevitaminssuper-abovesupermanpoly-manypolygonperi-aroundperimeteromni-allneonewmulti-manymulticulturehyper-over,abovehyperactivehypo-below, less thanhypotensionhomo-samehomophonehetero -otherheterogeneousdynpowerdynamicdia-through, across, betweendialogue,diameterdemo-peopledemographicflexto bendflexiblemorphshapemorphemefluflowinfluencevertto turnconvertscrib/s