高中英语模块4 Unit5 Grammar课件 新课标 人教版0 课件.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,*,Word Formation,英语构词法,(,Word Formation),掌握一些英语构词法，对单词的记忆和理解有很大的帮助，下面我们将列举一些常用的构词法,:,1.,合成,(,Compounding,),2.转化,(,Conversion,),3.,派生,(,Derivation,),1.,合成,(,Compounding),由两个或更多的词合成一个词,有的用连字符号,”-”,连接,有的直接连写 在一起,.,eg,:wood(,木),cut(,刻),woodcut,(,木刻,),man(,人),kind(,种类,),mankind,(,人类,),air(,空气，空中,),sick(,恶心的，晕的,),airsick(,晕机的),merry-go-round,旋转木马,up-to-date,最新的,life-size,与真人一般大,2.,转化,(,conversion),由一种词类转换成另一种词类。,（即一般拼写不变，但是词类发生了变化，,有时发音也变化）,e.g.water,n.,水,-,water,v.,浇水,dirty,adj.,脏的,-,dirty,v.,弄脏,e.g.,He went in and sat,down.,The army,downed,a plane.,3.,派生,(,Derivation),由一个词根加上前缀或后缀构成另一个词,.,1,),后缀,(,suffix),名词后缀,-,or actor sailor,-,ist,scientist,-,ment,achievement movement,-(,a)tion,preparation exception,-y difficulty discovery,形容词后缀,-,ful,useful cheerful,-able comfortable enjoyable,-ed manned cultured,-less careless fearless,-,ive,active decisive,-an European Indian,动词后缀,-,ize,realize modernize,-en widen strengthen,副词后缀,-,ly,really extremely,-ward backward eastward,数词后缀,-,teen fourteen fifteen,-,ty,forty fifty,-,th,ninth twelfth,2),前缀,(,prefix),一般不造成词类的转变，只是引起,意思的变化,e.g.un-(,不,或做相反动作,),unhappy undo,im,-(,不),impossible impolite,re-(,重新,),retell rewrite,mis,-(,错误的,),misunderstand,个别前缀会引起词类的变化,e.g.en-(,使得,),endanger enlarge,a-asleep awake,Discovering useful structure,(page36),Lets fill in the forms of Part 2 and Part 3 with the correct words.,Then tell me which type of word formation they show us.,More exercise,(,Page 71,),1.Finish the exercises paper.,2.Review,Homework,