学习构词法的意义是什么呢?没错,就是它可以使大家可以轻松容易的认识更多单词,以一种巧妙的方法扩大词语量。英语中的构词法主要有三种,即转化法、合成法和派生法。 1 转化法(conversion) 在英语中,一个单词由一种词性转化为另一种或几种词性而词形不变的办法叫做转化法。 1. 动词转化为名词 Let me have a try. 让我试一试。 They are only allowed to sell soft drinks at school. 在学校里只准许他们供应不含酒精的饮料。 2. 名词转化为动词 He shouldered his way through the crowd. 他用肩膀推开人群前进。 The smell from the kitchen made his mouth water. 从厨房传来的气味使他流口水。 3. 形容词转化为动词 We will try our best to better our living conditions. 大家要尽力改变大家的生活情况。 They tried to perfect the working conditions. 他们努力改变工作条件。 4. 形容词转化为名词 He didnt know the difference between right and wrong. 他不辨是非。 The old in our village are living a happy life. 大家村的老年人过着幸福的生活。 5. 形容词转化为副词 How long have you lived there? 你在那儿住多长时间了? 6. 个别词在肯定场所中可转化为名词 Warm clothes are a must in the mountains. 穿暖和的衣服到山区去是需要的。 Life is full of ups and downs. 生活有得意时也有失意时。 His argument contains too many ifs and buts. 他的辩论中含有太多的假如和但。 2 合成法(composition) 由两个或两个以上的单词连在一块合成一个新词,这种构词法叫做合成法,合成的词叫做合成词(compounds)。合成词的写法由习惯决定,可以写在一块,也可以用连词符号连接。 1. 合成名词 名词/代词+名词 newspaper blood-test she-wolf 动词+名词 typewriter pickpocket daybreak 形容词+名词 greenhouse highway 副词+名词 overcoat outside 名词+v.-ing/v.-ing +名词 handwriting reading-room freezing-point 动词+副词/ 副词+ 动词 breakthrough get-together outbreak outcome 名词+介词+名词 sister-in-law editor-in-chief 2. 合成形容词 名词+形容词/形容词+名词 world-famous duty-free large-scale long- term 副词+形容词 over-anxious evergreen 名词+过去分词 man-made sun-burnt 名词+目前分词 peace-loving English-speaking 形容词+目前分词 good-looking easy-going 副词+过去分词 well-informed widespread 副词+目前分词 hardworking far-reaching 形容词+名词+ed warm-hearted absent-minded 数词+名词+ed three-legged ten-storied 数词+名词 one-way fivestar 数词+名词+形容词 ten-year-old 800-meter-long 名词+to+名词 face to-face door - to -door 3. 合成动词 名词+动词 baby-sit sleepwalk 副词+动词 outnumber underestimate overwork 形容词+动词 whitewash 4. 合成副词 形容词+名词 meanwhile anyway 形容词+副词 everywhere anyhow 副词+副词 however 介词+名词 beforehand overhead 介词+副词 forever 5. 合成代词 代词宾格+self/selves herself themselves 物主代词+self/selves myself yourselves 形容词+名词 anything nothing 6. 合成介词 副词+名词 inside outside 介词+副词 without within 副词+介词 into 3 派生法 由一个词加上前缀或后缀构成一个与外贸原单词意义相近或截然相反的新词叫做派生法。 1. 前缀 除少数前缀外,前缀一般改变单词的意义,但不改变单词的词性。 (1)表示否定意义的前缀 un-unhappy unfinished undress dis- disagree disbelieve in[il-(在字母l前),im-(在字母m,b,p前),ir(在字母r前)]-inaccurate illegal impolite imbalance irregular mis-misbehave mislead mistake non-nonsTOP nonsmoker (2)表示其他意义的前缀 en-使 enrich enlarge encourage inter-相互 international intercontinental re-再,又,重 rethink retell recycle tele-远程的 telescope telephone telegraph auto-自动的 automatic automobile co-一同 coworker cooperate coexist anti-反对,抵抗 antiwar antifreeze antinuclear multi-多 multistory multicultural multicolor bi-双,二bicycle bilingual bilateral micro-极小的,微小的 microwave microcomputer over-太多,过分 overwork overdo overestimate self-自己,本身 self-centered self-confident self-control under-在下面,下的,不足的 underline, underground, underestimate, underrate 2. 后缀 (1)形容词后缀 -able 可的,具备的 acceptable drinkable knowledgeable reasonable -al与有关的 physical, magical, political -an是某地方的人 American African -ern方向 southern, northern, eastern -ful/ less(没)有的 helpful, useful, homeless, hopeless -ish如的;有特点的 foolish childish selfish -ive有倾向的 active attractive expensive -en由制成的 golden wooden woolen -ous有(性质)的 famous, dangerous, poisonous -ly 有性质的 friendly yearly daily -y构成形容词 noisy dusty cloudy (2)名词后缀 -er / or表人或用具 farmer, baker, visitor, professor, cooker, container -ese某国(人)的 Chinese, Japanese -ian某国、某地人;精通的人 musician, Asian, Russian, technician -ist某种主义或职业者 physicist, scientist, communist,socialist -ess表女人,雌性 hostess, actress, princess -ment行为或其状况 government, movement, achievement -ness性质,状况 illness, sadness, carelessness -tion动作,过程,结果 invention, organization, translation -ance/ ence抽象;行为、性质、状况 importance, appearance, absence, existence -th性质、状况 depth, warmth, truth -ful(满的)量 handful, spoonful, mouthful -(a)bility抽象、性质、状况 possibility, disability, reliability -al过程、状况 survival, arrival, approval -y性质、状况 modesty, delivery, honesty -dom处于状况;性质 freedom, boredom -age状况,行为,身份及其结果 courage, storage, marriage (3)动词后缀 -fy / ify使得;变得 simplify, beautify, purify -en使成为;变得 shorten, deepen, sadden -ize使成为 apologize, realize, specialize (4)副词后缀 -ly方法,程度 freely, truly, angrily ward(s)向 towards, forward, upwards (5)数词后缀 -teen十几 fourteen, eighteen, thirteen -ty整十位数 forty, fifty, sixty -th序数词 twelfth, twentieth