单词重读规律
一、双音节动词倾向于重读后一音节
absorb behave combine employ forget improve locate mistake observe persist receive succeed transfer unite withstand
二、动词以外的双音节词，倾向于重读前一音节
Acid basin crisis custom alloy anchor August April compass Sunday lemon lion concept common complex distant even holy honest human second seven hundred thousand millon billion either many little nothing something other every seldom often always ever never hardly almost during onto into over under whether after also
名词、形容词、副词的后缀，大都是非重读的
-er -or -ist -ess -ism -ness -ion -tion -sion -sion -ment -iong -ship -hood -age -une -dom -ty -y -ey -ance -ence -ful -our -ent -ace -ow -ic(s)等名词后缀
thinker freedom actor duty dentist plenty hostress money Marxism distance illness absense nation handful treatment labour building student hardship preface childhood window shortage logic failure physics
-ly -ed -ent -ant -al -ow等形容词后缀
useful daily useless dirty childish handsome active warlike famous golden portable possible wicked absent magic central yellow distant
-ly -ward(s) -wise等副词后缀
Really eastward sinoly homeward fully likewise clockwise
-ty数词后缀
Twenty sixty thirty eighty fourty ninety fifty
三、双音节动词重读后一音节的倾向和双音节名词和形容词重读前一音节的倾向，在下列单词中显得尤为明显。
accent combine compound compress conduct conflict contact content contest contrast convict digest discount entrance escort seeay export extract ferment forecast import increase insult perfume permit present produce progress project prospect protest rebel record refuse reject survey suspect torment transfer transport
absent abstract perfect concrete
影响双音节词重读倾向的构词因素
上述双音节动词倾向于重读后一音节，而其它词类的双音节词倾向于重读前一音节，但这并不意味着所有的双音节词都如此，因为双音节词的重读还要受到单词结构的影响。
一、词缀的影响
1、带有-en -er -ish -le -y ow等非重读后缀的动词 一般不重读后一音节 而重读前一音节
darken deepen frighten happen open wander waver matter glitter flatter finish furnish polish publish punish vanish battle struggle tremble twinkle wriggle carry harry marry worty study copy envy fancy borrow swallow
2、下列情况下 动词以外的双音节词不重读前一音节而重读后一音节
1） 带有a- be- to等前缀的副词 形容词 介词 连词
abroad again ago ahead alike asleep afraid alive alert along across about against among above around behind below beneath beside besides between beyond before because today tonight toward(s)
2） 带前缀ex-的介词 形容词和名词
except exact exempt extinct extreme excess excuse expense express extent
3） 带前缀dis-的个别形容词和带后缀-ute的某些形容词
distinct discrete acute astute argute
4） 以后缀-ee结尾的名词
payee grantee trustee donee standee
5）以-self结尾的代词
myself yourself himself herself itself ourselves yourselves thenselves
3、下列双音节词有两个重音 两个音节均重读
1）以-teen和-teenth结尾的数词
thirteen thirteenth
fourteen fourteenth
2) 带有re- ex- un- pre- post- 等前缀的双音节词
reset retell rewrite reword exmayer exwife unfair unfit unjust unknown preview prewar postdate postwar Berlin Beijing Chinese
4、带有名词 形容词 和副词后缀的双音节动词 大部分是由相应的名词 形容词和副词转化而来。这些动词保持着原来的重音。
二、词类转化的影响
词类转化时，重音一般不变。这样一来，有其它词类转化而来的双音节动词，便不重读后一音节而重读前一音节，相反地，由动词转化而来的其它词类的双音节词，便不重读前一音节而重读后一音节了。
1、名词、形容词、副词、数词转化为动词
button carpet feather water market dirty empty narrow purple yellow shallow tidy further forward second
2、动词转化为名词
debate dispute survey demad attempt attack advance
三、合成词的重读规律
双音节合成词的重读，一般有三种情况：
1、前面的词重读，但后面的词却不弱化
Bathroom midday birthday network outlook classmate passport daytime shipwreck earthquake textbook football wartime haircut weekday input lifetime
2、 两个词都重读
alongside outside southeast downstairs southwest springtime farewell upright headlong viewpoint weekend inside X-ray okey
3、后面的词重读，前面的词不弱化。
whereby wherein whereof whereon whereto
这些词主要用作关系副词
多音节词的重读规律
一、多音节词一般倾向于重读倒数第三个音节
Academy bicycle chemistry Circumstance Document Element General Hospital Ignorance Leteral Machinery Numerical Origin Perimeter Salary Terminus Versatile Accompany Certificate Circumference Discipline Economy Funeral Geography Hydrogen kerosine Liberty Nitrogen Opposite Parameter Relative Similar University Yesterday
二、以约定开音节结尾的多音节动词（以及少数名词和形容词），重读倒数第三个音节，而且最后的约定开音节不弱化
Activate Constitute Emphasize Institute Multitude Versatile Analyse Compromise Sacrifice Microscope Telephone Longitude Volatile
加后缀-ize而构成的多音节动词，一般保持原词的重音，所以既有重读倒数第三个音节的，也有倒数第四个音节的。
Modern Modernize Normal Normalize Central Centralize Popular Popularize Industrial Industrialize
三、以-y结尾的多音节动词，也重读倒数第三个音节，而且最后的字母y也不弱化
Classify Modify Satisfy Simplify Magnify Clarify Justify Identify Occupy Examplify
四、以-ity（包括-ability，-ibility，-acity，-ality,-aneity,-arity, -icity ,-idity , -ility , -ivity, -osity等复合后缀）,ety,-ty,-ry,-y结尾的多音节名词，大都重读倒数第三个音节。
Barbarity Similarity Futurity Centricity Movability Periodicity Capacity Vitality acidity Timidity Mortality Fragility Activity Passivity Contemporaneity Extremity Minority Popularity Basicity audacity fluidity Nationality Stupidity Facility Regularity Sensitivity Liberty Cruelty Harmony Anxiety
五、以后缀-able -ible -ably -ibly 结尾的形容词和副词，大都也重读倒数第三个音节。
Movable Lovable Suitable Sensible Lovably Possibly
六、以-ac,-acal,-ar,-arian,-ate,-ative,-cular,-eal,-ean,-erly,-form,-ian,-ical,-ior,-itive,-lent,-oid,-eous,-ious,-ple,-uous,-ual,-ular,-ute等形容词后缀结尾的多音节词，也重读倒数第三个音节。
Maniac Cardiac Maniacal Cardiacal Similar Peculiar Vegetarian Lunarian Fortunate Private Talkative Causative Molecular Tubercular ethereal Funereal lactean giantean Easterly Westerly Cubiform Vermiform Canadian Australian Critical Logical anterior posterior sensitive Primitive opulent Virulent righteous Curious Acidoid Crystalloid Multiple sex tuble Actual Eventual regular Granular Absolute destitute
七、以-ad,-ance,-ate,-cle(包括-acle -icle),-erel,-escency,-et,-ia,-ide,-itor,-ium,lence,-logy,-logist等后缀结尾的名词，也大都倒数第三个音节。
Chiliad Brilliance Floweret Graduate utopia Spectacle iodide Cockerel Auditor Convaiescency Magnesium Violence Adolescency Geology geologist arboret myriad
cyanide Relevance Competiter Candidate Radium Virulence Biology Particle Biologist Doggerel
后缀对多音节词重读的影响
一、以后缀-ary -ory -mony -ency结尾的多音节词，多半重读倒数第四个音节，但也有少数重读倒数第三个音节的（共有三个音节者或者保留原词重音者）
Dictionary Ceremony secondary testimony temporary, Marrymony Laboratory Acrimony laboratory opulency Dormitory virulency Observatory, innocency Infirmary Hegemony Library urgency directory emergency compulsory frequency
二、以-ic（包括-astic,-atic，-etic，-istic,-itic，-otic，-tic，-ics）,-esent,-ish，-ive,-cian，-sian,-tian，-cial,-cient,-tient，-cience，-tience,-aceous,-acrous,-tion，-sion结尾的多音节词，一般重读倒数第二个音节。
Historic atomic organic poetic sarcastic phantasmic systematic idiomatic theoretic energetic socialistic realistic dendritic Islamitic osmotic hypnotic romantic dramatic mathematics pedagogics statistics electronics distinguish establish adolescent convalescent luminescent ecescent atractive decisive exclusive expensive musician electrician physcian technician Asian Egyptian especial essential deficient impatient conscience impatience herbaceous capacious
三、以-ee，-een,-eer，-esce,-esque，-ette,-most,-oon等后缀结尾的词，不论是双音节词还是多音节词，一般均重读最后一个音节。
Employee refugee interviewee addressee canteen sateen engineer volunteer acquiesce convalesce Japanese Burmese Viennese Cantoonese picturesque arabesque kitchenette cigarette lowermost uppermost balloon cartoon
四、-ess,-est,-eth,-er,-fold,-ful,-hood,-ing,-ism,-ist,-ize,-kin,-less,-let,-ilke,-ly,-ment,-ness,-or,-ress,-s,ship,-some,-th,-ward(s),-ways,-wise,-yer等后缀，不管是加在单音节词，双音节词还是多音节词上，均不使原词改变重音。
Poet poetess host hostess small smallest high highest twenty twentieth thirty thirtieth
work worker lecture lecturer great greater warm warmer two twofold seven sevenfold
Hope hopeful power powerful child childhood girl girlhoodd teach teaching sleep sleeping commune communism social socialism type typist copy copyist modern modernize popular popularize lamb lambkin devil devilkin home homeless shame shameless cease ceaseless book booklet stream streamlet child childlike woman womanlike love lovely friend friendly day daily week weekly great greatly fearful fearfully true truly move movement develop development good goodness bitter bitterness empty emptiness act actor invent inventor conduct conductor actor actress waiter waitress outdoor outdoors indoor indoors beside besides uostair uostairs friend friendship hard hardship trouble troublesome burden burdensome grow growth wide width four fourth seven seventh down downward up upward north northward south southward corner cornerways cross crossways clock clockwise like likewise other otherwise law lawyer saw sawyer
多音节合成词和带前缀的多音节词的重读规律
一、多音节合成词和带前缀多音节词，一般有三种读法
1、合成词的前一部分或多音节词的前缀重读，但后一部分的重读音节却不弱化（或有次重音）
Beforehand outstanding
Earthenware overboard
Everything overknee
Everywhere supermarket
Grandfather centimeter
Grandmother kilometer
Gunpowder minicomputer
Handwriting monofuel
Horsepower superstate
Masterpiece superstate
Motorway countercharge
Noteworthy dialogue
Outermost aerocraft
Shipbuilding diagraph
Sightseeing antipole
Thanksgiving multiplicate
Typewriter semicircle
Waterproof pseudoclassic
watertight
2、合成词的前一部分或多音节词的前缀不弱化（或有次重音），后一部分有重读音节。
Shortcoming correspond
Everlasting inorganic
Whatever macroscopic
Whatsoever microscopic
Whenever overcome
Wherever reproduce
Whichever underline
Moreover supervene
Waterresistant superpower
Whensoever transmarine
Wheresoever supramolecular
Whercunto subcentral
Whereupon retrospective
Whichsoever preposition
Photoelectric monoatomic
3、词的两个部分各有各的重读音节
Alongside agriculture
Countryside hydrocarbon
Everyday microprocessor
Furthermore misunderstand
Headmaster nonuniform
Hitherto overhang
Loudspeaker overfulfil
Nevertheless overload
Roundabout overnight
Sevenreen overseas
Peaceloving radioactive
Watersolubility superimpose
Breastdeep supersonic
Breasthigh ultrasonic
Longdistance ultraviolet
Longsuffering unable
Highspeaker undesirable
二、多音节词中的前缀，还有两种读法
1、前缀只作为一个普通音节而按照前面所讲的重读规则读音
2、有些前缀是非重读后置，要发生弱化。
Abondon discourage abundan dysfunction accordingly encourage accustom enfeeble another illegal abstruse immoral absurd injustice accopmlish infrequent adjunctive mischance bewilder mislead deliver withdrawal determine attribute disaster contribute dishonest distribute disloyal
