unit16grammarnewedition课件

英语中，词的构成方式主要有三种:合成(compounding)转化(conversion)派生(derivation)1)前缀(prefix)2)后缀(suffix)可参看P158-161Somewordsaremadeupoftwoormoreotherwords---------compoundwordsSomearewrittenastwowords(eghotdog，icecream)2Somearespeltasoneword(egschoolyard)3Somearewordsjoinedbyahyphen(egbest-seller)P26foot+ball=footballshoe+string/lace=shoestring/shoelaceice+cream=icecreamgreen+house=greenhousedown+town=downtownsea+food=seafoodAfewmoreexamples:Part1SomethingyoudoinyourfreetimePart2Whatisunderyourfeetplay+ground=playground2Part1theoppositeofwhitePart2aflatandsmoothpieceofwoodblack+board=blackboard3Part1apieceoffurniturewithfourlegsPart2agameplayedbyhittingasmallballoveranetinafieldofgrasstable+tennis=tabletennis1noun+nounbasket(篮子)+ball(球)=basketball(篮球)house(屋子)+work(劳动)=housework(家务劳动)news(消息)+paper(纸)=newspaper(报纸)Guessthemeaningbedclotheswoodcutterbattlefieldschool-leaver床上用品樵夫，