高三易记单词-构词法

,单词构成前缀词根后缀,构词法名师P184,构词法：,合成(Compounding),派生法（Derivation）,转化法（Conversion）,workmate,like-minded，break,派生法:由一个词根加上前缀或后缀构成另一个词的方法。,happy-happily-happiness,unhappy-unhappily-unhappiness,一、前缀，1.否定,happy-unhappyappear-disappearpossible-impossiblesmoker-non-smokertake-mistake,MatchAandB.,unlike不像;dislike不喜欢disappear消失impolite没有礼貌的mislead误导unnecessary不必要的disadvantage缺点non-stop不停地disbelieve不相信misunderstand误解,常用于形容词动词b/p/m开头的形容词名词/动词动词,Checkourselves,Theboysaidnothingbutquietlywalkedaway,_(appear)inthedark.,disappearing,2.表示空间位置，方向关系的前缀,1)a-表示“在之上”，“向”aboard,aside,2)inter-,intel-,表示“在间，相互”international,interaction,internet3）mid-,表示“中，中间”midday,midnight,mid-autumn,5)out-,表示“在上面，在外部，向外”outline,outside,outward,outgoing6)over-,表示“在上面，在外部，超过”overhead,overboard7)extra-,表示“额外”extraordinary8)fore-表示“在前面”forehead,foreground9)in-,表示“向内，在内，背于”inland,inside,2.表示空间位置，方向关系的前缀,under-,表示“在.下面，下的”underline,underground,underwater11)up-,表示“向上，向上面，在上”upward,uphold,uphill(上坡),1re-“又,再”repeat,review,return,reunite,remarry2.co“联合，伴同”cooperate,coexist,co-worker3.super“在上；加之”superman,supermarket,3.表示其他意义的前缀:,名词的常见后缀,-tion-ness-ment-er-or-ist-ant,destinationsadnesssettlementwriteractorartistservant,常在形容词后,2.后缀:(改变词性）,关于人的词缀：-er,（人，动作执行者）-ese（人，语言）-ian（人）-ist（人，大家）-or（人，动作者）tion（行为，状态）-ness(性质）,singer,fighter,teacherChinese,Japanesemusician,Russian,artist,pianist,scientist,conductor,visitor,professorinvention，liberation，operationbusiness，illness，darkness,形容词：-al-ful（充满的）-less-y动词：-ize副词：-ly,形容词：physical,national,political,useful,careful,helpfulfearless,useless,carelesscloudy,sunny,dirtyapologizeorganizebadly，angrily，truly,无,副词要去e的：true,gentle,simple,-ly,-ize,-able,-ment,-er,-or,-ist,-ian,-tion,-ness,-ful,-sive,-tive,-ed,-ing,-ful,-en-,合成：把两个或更多的词合成一个词。合成的词构成大致有以下几种情况。,1.合成名词：2.合成动词：3.合成形容词,birthdayroommatefootballblackboardunderstandsafe-guardwhite-washsnow-whitehand-madedark-blue,Ithasagoodtaste.,Ittastesverygood.,book,n.书籍,v.记载,record,n.记录,v.记录,Thisbookisverygood.,Heisbookingthehistory.,Hebroketherecord.,Herecordedsomethingwhilereadingabook.,clean,adj.干净,v.清扫,Pleasekeeptidyandclean.,Youhavetocleantheblackboardafterclass.,n.书籍,v.记载,n.书籍,v.记载,n.记录,v.记录,n.记录,v.记录,record,n.记录,v.记录,Ithasagoodtaste.,Ittastesverygood.,book,v.记载,record,n.记录,v.记录,Thisbookisverygood.,Heisbookingthehistory.,Hebroketherecord.,Herecordedsomethingwhilereadingabook.,clean,adj.干净,v.清扫,Pleasekeeptidyandclean.,Youhavetocleantheblackboardafterclass.,v.记载,n.记录,v.记录,n.记录,v.记录,record,n.记录,v.记录,n.记录,转化活用法适用于双性词,Ithasagoodtaste.,Ittastesverygood.,book,n.书籍,v.记载,record,n.记录,v.记录,Thisbookisverygood.,Heisbookingthehistory.,Hebroketherecord.,Herecordedsomethingwhilereadingabook.,clean,adj.干净,v.清扫,Pleasekeeptidyandclean.,Youhavetocleantheblackboardafterclass.,n.书籍,v.记载,n.书籍,v.记载,n.记录,v.记录,n.记录,v.记录,record,n.记录,v.记录,Ithasagoodtaste.,Ittastesverygood.,book,v.记载,record,n.记录,v.记录,Thisbookisverygood.,Heisbookingthehistory.,Hebroketherecord.,Herecordedsomethingwhilereadingabook.,clean,adj.干净,v.清扫,Pleasekeeptidyandclean.,Youhavetocleantheblackboardafterclass.,v.记载,n.记录,v.记录,n.记录,v.记录,record,n.记录,v.记录,n.记录,Ithasagoodtaste.,Ittastesverygood.,Thisbookisverygood.,Ithasagoodtaste.,Ittastesverygood.,Heisbookingthehistory.,Thisbookisverygood.,Ithasagoodtaste.,Ittastesverygood.,Hebroketherecord.,Herecordedsomethingwhilereadingabook.,Heisbookingthehistory.,Thisbookisverygood.,Ithasagoodtaste.,Ittastesverygood.,Pleasekeeptidyandclean.,Hebroketherecord.,Herecordedsomethingwhilereadingabook.,Heisbookingthehistory.,Thisbookisverygood.,Ithasagoodtaste.,Ittastesverygood.,Youhavetocleantheblackboardafterclass.,Pleasekeeptidyandclean.,Hebroketherecord.,Herecordedsomethingwhilereadingabook.,Heisbookingthehistory.,Thisbookisverygood.,Ithasagoodtaste.,Ittastesverygood.,Practice(II):,rain(形容词)_agree(反义)_nation(形容词)_farm(人)_recent(副词)_friend(形容词)_hope(形容词)_back(形容词)_visit(名词)_home(形容词)_eight(序数词)_true(名词)_America(形容词)_China(形容词)_,按括号内的要求改写下列单词,rainy,national,recently,hopeful,visitor,eighth,American,disagree,farmer,friendly,backwards,homeless,truth,Chinese,Withthe(1)_(develop)ofindustry,airpollutionisgettingmore(2)_moreserious.InBeijing,manypeoplesufferdifferentkindsof(3)_（ill）becauseofairpollution.Airpollutioniscaused(4)_thefollowingreasons:abouthalfoftheproblemiscausedbyvehicles.Therearemoreandmorecars,busesontheroads,andtheygiveout(5)_(poison）gases.25%ofairpollutioniscausedbyfactories.Another(6)_(fact)isthe