高中英语构词法.ppt

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1、Learning about language,Unit 5 Theme parks,构词法,一. 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,或由两个分开的词构成. eg: English-speaking 讲英语的 weekend 周末,whitewash 粉刷,downpour 倾盆大雨,mother-in-law 岳母,Butterfly downtown Football hardworking Icecream kindhearted Laptop lifesized Watermeleon worthwhile Wo

2、rnout northeastern Earthquake mobilephone Mankind headline Easygoing homeland passerby eggplant,1.前缀(prefix) e.g. un-(不,或做相反动作) unhappy unable unfriendly im-(不) impossible impolite re-(重新) retell rewrite mis-(错误的) misunderstand dis- (不) disagree dislike,二.派生(Derivation) 由一个词根加上前缀或后缀构成另一个词.,2.后缀(suff

3、ix) 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(令人愉快的) -ed manned cultured(有教养的) -less careless fearless -ive active decisive(决定性的) -an European Indian,动词后缀 -ize realize

4、modernize(使现代化) -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,Discovering useful structure (page37),Lets fill in the forms of Part 3 and Part 4 with the correct words.,Write out the original words.,unchangeable ad

5、j _ dislike v _ impossibility n _ unfriendly adj_ overwork v _ misunderstanding n _ athletic adj_ misread v _ translator n _,change,like,possible,friend,work,understand,athlete,read,translate,Fill the table with the different forms of the words.,admission,admissible,admissibly,imagination,imaginativ

6、e,imaginatively,settlement,settled,equipment,equipped,attraction,attractive,attractively,转化法（Conversion）,各种词类之间经常互相转化 ,数量最多的当属动词和名词的相互转化。此外 ,其它词类之间也可相互转化 ,有一词多义的现象 。,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

7、 the record.,He lies to record 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.,e.g.,总结：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，常用的构词法: 1. 合成(Compounding) 2. 派生(Derivation) 3.转化(Conversion),summary,1. He was one of t

8、he best _ in yesterdays football match. (play) 2. Look! How _ Kate is laughing! (happy) 3. It snowed _ last night and now the streets are covered with snow. (heavy) 4. Edison was a great _. During his life he had many _. (invent),players,happily,heavily,inventor,inventions,构词法精练,Use the appropriate

9、form of the words to fill in the blanks.,Homework,5. More and more _ have come to visit China over these years. （foreign） 6. We want _ reasons for your failure to help. (satisfy) 7. Please give me some reference work. It will _ my task. (simple) 8. The boy had the _ of being half starved. (appear) 9

10、. The police have _ a plot against the President. (cover) 10. The doctor said that Marys mother needed an _.(operate),foreigners,satisfactory,simplify,appearance,uncovered,operation,11. She hoped that her son would become a _. (music) 12. Few _ words made us excited. (speak) 13. The days on the moon

11、 get hotter than _ water. (boil) 14. Thank you for your _. (kind) 15. Many college students work while they are studying because they want to make some money for their college _ . (expensive) 16. Most international _ letters are written in English, too. (busy),musician,spoken,boiling,kindness,expens

12、es,business,17. The boy noticed an _ mistake on his paper, but he decided not to say anything about it. (correct) 18. When in Rome, do as the _ do. (Rome) 19. The teacher was pleased with her _. (honest) 20. The mother didnt know why her daughter was crying _. (noise),uncorrected,Romans,honesty,noisily,Homework,1.Go over the new words and expressions. 2. Write down the story you made up in the class. (words:80-120),