e,1 prewar 2 postgraduate 3 asexual/ acentric 4 abduct 5 ambiguous 6 Antarctic /antacid 7 antecessor 8 antitank/ antimagnetic anti-seismic 9 autobiography 10 circumlunar/circumspect 11 collide/ colleague 12 compound/ combine 13 contradiction/ contra-missile 14 counteraction/ counterproposal,15 deforest /deregister devaluation 16 dioxide /diatomic 17 encage/encase/encave 18 export/exit 19 extra-solar / extralegal 20 forefather/ foreword 21 hectometer / centimetre 22 hemisphere/ hemicircle 23hypersentive /hypersonic 24 illegal / illogical/ illiteral 25 immoral/impure injustice/insecure 27 maltreat/malnutrition 28 milligram 29 monotone 30 multicolor 31 nonhuman,32 overcrowded/overlook 33pan-American 34 pentagon 35 polycentric/polysyllable 36 recall/reprint 37semimetal 38 subsurface/submarine 39 super profit/supervise 40symphony 41 transform/transport 42 tricar / twifork 43 unbind 44 underrsea 45 vice-governor 46 pseudonym/pseuo-democratic,32 overcrowded/overlook 33pan-American 34 pentagon 35 polycentric/polysyllable 36 recall/reprint 37semimetal 38 subsurface/submarine 39 super profit/supervise 40symphony 41 transform/transport 42 tricar / twifork 43 unbind 44 underrsea 45 vice-governor 46 pseudonym/pseuo-democratic,s,1 merchant, agent 2 scholar, liar 4 educator, speculator 5 employee, examinee 6 engineer, volunteer 7 actress, hostess 8 amateur 9 physician， musician 10 electrician, technician vegetarian 11 physicist, phoneticist 12 pianist, communist, dentist,biologist, geologist 14 lawyer 15 socialism, criticism 16 purity, reality, 17 treatment, movement, judgment 18goodness, kindness, 19hardship,membership, friendship 20 failure, procedure 21 biography, 22 cigarette, essayette 23 purify/ beautify 24 ambitious-ambition,25 deep-deepen/wooden v 26 operate-operation n separate-separation 27 idiom- idiomatic adj sympathy- sympathetic 28 starve-starvation n Relax-relaxation imagine-imagination 29visit-visitor/invent-inventor 30 free-freedom n 31trust-trustee n 32 voluntary-volunteer n 33 urgent-urgency n 34 right-righteous adj,35 boil-boiler n 36 poet-poetess n 37story-storyette n 38 talk- talkative adj 39 energy-energetic 40 terrible-terrify-terrific 41 bag-bagful 42 girl-girlhood n 43 Egypt-Egyptian n 44 eat-eatable 45 magic-magical adj politics-political 46 rebel-rebellion n express-expressive adj,adj,47anxiety-anxious ambition-ambitious 48 capital-capitalist-capitalism 49society- socialist-socialist 50 industry-industrialization 51 modern-modernize-modernization realize-realization 52 wire-wireless 53 biology-biologist zoo-zoology 54 ill-illness/kindness 55 edit-editor-editress,56 decide-decision tense-tension divide-division 57 depart-departure fail-failure 58 oppress-oppression 59 hill-hilly/sunny/rainy 62,常见的词根(1),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” biology, 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 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, photograph 30) grad, gress, gred, gree, 含义是“步，阶段” gradually, degree, progress,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”