文档介绍：新托福词汇之常见词根词缀总结 1 新托福词汇之常见词组根词缀总结分类前缀★N umerical Prefixes 与数字有关的前缀 semi-: half, partly, plete ( semiconductor , semiconscious, semifinal) un i -, mono-: one (unique, unity, monotonous, monopoly , monogamy ) bi-: two (bigamy, bilateral, bicycle , bilingual ) tri-: three (triple , trident, tri angle ,) quad-, quar-: four (quadruple , quarter, quartet) deci-: ten (decade, decathlon, decimal) cent-: hundred , hundredth (century, centimeter, centipede) mil l -: thousand (millennium , millipede) multi-: many, mu ch (multimedia, multiple, multinational, multilateral) poly-: many, much (polygamy, polyandry, polysyllabic, polyglot) pan-:all (pandemic, panorama , panacea) omni-:all (omniscient, omnipotent, omnipresent) ★ Prefixes/ Suffixes w ith Negative Meanings 否定前缀 N ot/without: 纯粹否定 a-, an- : amoral , atypical , anarchy il- /im- /ir-/in- : ina dequate , essible, imbalance, immodest, irrelevant , irregular, illegal un- : unable, uninterested, unorthodox , unlock non- : nonsmoke r, nonprofit, nonalcoholic, non-existent dis-: disable, dislike, disagree, disappear, disharmony spread 分散(distribute, dismiss) -less: careless, effortless, homeless ab-: away from 偏离(abnormal, abduct, abuse) de-:down 下降, away 除去(decrease, descend, dehydration, demean, deforestation) Not right 坏的 mal-: bad, abnormal, evil, wrong (malady, malfunction, malpractice) mis-: bad, wrong, ill( misbehave , misspell , misunderstand ) Against 反抗-proof: against (waterproof, airproof, bulletproof, lightproof) anti-: opposite, against ( antibiotic , antipathy, antiwar, anti-Japanese) ob-/op-/of-: against (object, oppose, offend) contra- / counter- : against ( contra st, contrary , countermeasure , counteract) ★ Prefixes Indicating Directions 表方位的前缀 ex-: out, out of, away from 向外( export, express, expose , expect , exclude ) in-/im- /ir -/ il-: in, into, within 向内( import , impress, impose, inspect , include ) pre-: before 前(precaution, predict, preview) 新托福词汇之常见词根词缀总结 2 post-:after, subsequent, behind 后( postpone