新东方在线[www.koolearn.com]网络课堂电子教材系列四级基础精品词汇讲义速记讲义词汇4000速记讲义主讲：主讲：任志远欢迎使用新东方在线电子教材大学词汇常用的前缀和后缀1.常用前缀aero-:concerningtheairofaircraftplane---aeroplanespace---aerospaceanti-:against:oppositeofnuclear---antinuclearmatter---antimatterwar---antimatterauto-:oforbyoneselfbiography---autobiographycriticism---autocriticismbe-:totreatasthestatedthingfriend---befriendlittle---belittlebi-:two;twice;doublelingual---bilingualcycle---bicyclebio-:concerninglivingthingschemistry---biochemistrysphere---biosphereby-,bye-:lessimportantproduce---by-produceway---bywaycenti-:hundredthpartgrade---centigrademeter---centimeterco-:together,withauthor---coauthorexist---coexistcol-:(usedbeforel)together,withlocation---collocationcom-(usedbeforeb,m,p)together,withpassion---compassioncon-:together,withcentric---concentric1新东方在线[www.koolearn.com]网络课堂电子教材系列四级基础精品词汇讲义federation---confederationcontra-:oppositediction---contradictionnatural---contranaturalcor-:(usedbeforer)together,withrelate---correlaterespond---correspondcounter-:oppositeact---counteractattack---counterattackcross-:across;goingbetweenthestatedthingsandjoiningthemcountry---crosscountrybreed---crossbreedde-:showinganopposite;toremove;toreducecode---decodevalue---devaluedis-:not;theoppositeofadvantage---disadvantageagree---disagreehonest---dishonestem-:(usedbeforeb,m,p)tocausetobecamebody---embodypower---empoweren-:tocausetobecome;tomakedanger---endangerlarge---enlargeex-:former(andstillliving)minister---ex-ministerwife---ex-wifeextra-:outside;beyondcurricular---extracurricularordinary---extraordinaryfore-:inadvance,before;inoranthefrontarm---forearmwarn---forewarnil-:(usedbeforel)notlegal---illegalliterate---illiterateim-:(usedbeforeb,m,p)notmoral---immoralpossible---impossiblein-:notdirect---indirectsensitive---insensitiveinfra-:belowinarange;beyondred---infraredstructure---infrastructureinter-:between;amongchange---interchangenational---internationalintra-:inside,within;intocity---intracitydepartment---intra-departme