英语单词构词法常识

1、江明俊江明俊 l构词法可覆盖构词法可覆盖80的词汇的词汇l有助于举一反三、甚至更多有助于举一反三、甚至更多l可大幅提高记忆效果可大幅提高记忆效果lImpress 留下印象留下印象limpressive, impressively, impression impressurelCompress 压缩压缩lcompressor, compressive, compressively compressionlDepress 使沮丧使沮丧ldepressor, depressive, depressively, depressionlRepress 抑止抑止lrepressor, repressive

2、, repressively, repressionlSuppress 镇压镇压lsuppressive, suppressor suppressionl构词成分：构词成分：l前缀前缀l词根词根l补音补音l后缀后缀l构词变化：构词变化：l省略省略l变体变体lPredominant 占主导地位的占主导地位的lpre + dome + in + antlpre=前缀前缀ldome=词根词根 lin=补音补音lant=后缀后缀lPre (before) + dome (rule) +补音补音+形容词形容词lPredictionl=pre + dict + ionl预言名词预言名词l前缀词根后缀前缀词

3、根后缀lContaminate 污染污染lCon (together)+ tam (touch) + in + atelCentigrade 摄氏摄氏lCent + i + gradelAgitate 煽动煽动lAg (act) + it + ate l元音字母太多时要省略元音字母太多时要省略lControversial 有争议的有争议的lCounter + o + verse + iallX后的后的s要省略要省略lExpect 期待期待Ex + spectlApparent 明显的明显的Appear + entl化学、药学名词因为省略化学、药学名词因为省略 agent（剂）而导致（剂）而导致

4、形容词变名词形容词变名词lDessicant 干燥剂干燥剂lRetardant 抑制剂抑制剂lAdditive 添加剂添加剂lPrecipitant 沉淀剂沉淀剂lPropellant 推进剂推进剂lRepellent 驱虫剂驱虫剂l变体存在于前缀、后缀和词根中变体存在于前缀、后缀和词根中l前缀变体：前缀变体：lDiffuse 散开散开lDis + fuselIllegal 不合法的不合法的lIr + legallTable 表格表格lTabular 表格的表格的lGrain 微粒微粒lGranular 微粒的微粒的lArticle 文章文章lArticulate 有条理的有条理的lDescribedescription 描绘描绘lReceivereception 接受接受lpblfvlcklchquelnmlguequelfv：wifewives, lifelives lvw: invincible 不可战胜的不可战胜的lin + win + ibleldevastate 毁灭毁灭lde + waste + atelck：lim + peck + ablelchque：lcheckcheque lnm：lenrich 使丰富使丰富, embody 体现体现lgueque：dialogue 对话对话 （log