高三易记单词-构词法.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,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 -unhappy,appear-disappear,possible-impossible,smoker-non-smoker,take-mistake,Match A and B.,B,like,appear,polite,lead,necessary,advantage,stop,believe,understand,A,un,dis,im,non-,mis,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,Check ourselves,The boy said nothing but quietly walked away,_(appear)in the dark.,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,internet,3,）,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,outgoing,6),over-,表示“在上面，在外部，超过”,overhead,overboard,7),extra-,表示“额外”,extraordinary,8),fore-,表示“在前面”,forehead,foreground,9),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,underwater,11),up-,表示“向上，向上面，在上”,upward,uphold,uphill(,上坡,),1,re-“又,再”,repeat,review,return,reunite,remarry,2.co,“,联合，伴同”,cooperate,coexist,co-worker,3.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,destination,sadness,settlement,writer,actor,artist,servant,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,teacher,Chinese,Japanese,musician,Russian,artist,pianist,scientist,conductor,visitor,professor,invention,，,liberation,，,operation,business,，,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,helpful,fearless,useless,careless,cloudy,sunny,dirty,apologize organize,badly,，,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-,n.,v.,adj.,adv.,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,birthday roommate football blackboard,understand safe-guard white-wash,snow-white hand-made dark-blue,taste,n,.,味道,v.,尝起来,It has a good taste.,It tastes very good.,book,n.,书籍,v.,记载,record,n,.,记录,v.,记录,This book is very good.,He is booking the history.,He broke the record.,He recorded something while reading a book.,clean,adj.,干净,v.,清扫,Please keep tidy and clean,.,You have to clean the blackboard after class.,n.,书籍,v.,记载,n.,书籍,v.,记载,book,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,It has a good taste.,It tastes very good.,book,v.,记载,record,n,.,记录,v.,记录,This book is very good.,He is booking the history.,He broke the record.,He recorded something while reading a book.,clean,adj.,干净,v.,清扫,Please keep tidy and clean,.,You have to clean the blackboard after class.,v.,记载,book,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,n,.,记录,转化活用法,适用于双性词,tasten,.,味道,v.,尝起来,It has a good taste.,It tastes very good.,book,n.,书籍,v.,记载,record,n,.,记录,v.,记录,This book is very good.,He is booking the history.,He broke the record.,He recorded something while reading a book.,clean,adj.,干净,v.,清扫,Please keep tidy and clean,.,You have to clean the blackboard after class.,n.,书籍,v.,记载,n.,书籍,v.,记载,book,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,It has a good taste.,It tastes very good.,book,v.,记载,record,n,.,记录,v.,记录,This book is very good.,He is booking the history.,He broke the record.,He recorded something while reading a book.,clean,adj.,干净,v.,清扫Please keep tidy and clean,.,You have to clean the blackboard after class.,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,It has a good taste.,It tastes very good.,This book is very good.,It has a good taste.,It tastes very good.,He is booking the history.,This book is very good.,It has a good taste.,It tastes very good.,He broke the record.,He recorded something while reading a book.,He is booking the history.,This book is very good.,It has a good taste.,It tastes very good.,Please keep tidy and clean,.,He broke the record.,He recorded something while reading a book.,He is booking the history.,This book is very good.,It has a good taste.,It tastes very good.,You have to clean the blackboard after class.,Please keep tidy and clean,.,He broke the record.,He recorded something while reading a book.,He is booking the history.,This book is very good.,It has a good taste.,It tastes very good.,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,With the(1)_(develop)of industry,air pollution is getting more(2)_ more serious.In Beijing,many people suffer different kinds of(3)_,（,ill,）,because of air pollution.,Air pollution is caused(4)_ the following reasons:about half of the problem is caused by vehicles.There are more and more cars,buses on the roads,and they give out(5)_(poison,）,gases.25%of air pollution is caused by factories.Another(6)_(fact)is the _(smoke).Smoking not only does(7)_,（,harmful,）,to their health(8)_ also to others.Besides these,about 10%of air(9)_(polute)is,caused by other reasons.,development,and,illnesses,by,poisonous,factor,harm,but,pollution,smokers,Homework:,名师,P188,Good-bye!,