一、常见的词根
1. able, abil=able 能够
ability , able, disable, enable,
2. Act=do 做
Actor, actress, activity, action, active, actual, actually, exact, react,
3. Art=art 艺术
Art, article, artist,
4. cept, ceive, cip, cup=hold 抓住
accept, except, receive, receipt, principal,
5. Cycle, circle=circle 圈
Bicycle, recycle, circus,
6. Dic=write 写Diction（措辞）,
prediction, dictionary, dictation,
7. Duct, duc=say 说
Educate, education, reduce, conduct,
8. Fer=catch 捉住
Offer, infer, different, difference, prefer, suffer,
9. Flu=flow 流动
Fluent, fluency, influence, fly, flight
10. Fore, fort=strong
Force, forceful, effort, comfortable, discomfortable, before
11. Form=shape 形状
Formal, inform, information, reform, transform, uniform, perform, performance,
12. Grad=step, grade 阶段
Grade, graduate, gradual, centigrade,
13. Graph, gram=write,写
Photograph, telegraph, program, diagram
14. grat, gree=pleasing,满意
Gratitude, grateful, grace, agreement, disagree,
15. Hap=chance 机会
Perhaps, happen, happy, happiness,
16. Lect, lig=choose, gather,收集
Collect, collection, elect, neglect, select,
17. Mark=sigh,标记
Marked, remark, landmark, bookmark,
18. Memor=memory 记忆
Memory, memorize, remember,
19. Part, port=part, divide,分割
Apartment, depart, department, partner,
20. Pass=pass through 通过Passage, passenger, passport,
21. Pend, pens=hang 悬挂
Depend, independent, spend,
22. Point,=point, make sharp,尖，尖端
pointed, pointer, appoint, appointment, disappoint,
23. Police=state, city 城市，地区，国家Police, policy, politics,
24. Popul, publ=people 人们
Population, popular, public, publish,
25. Press=press 按压
Pressure, compress, express, expression, impressive,
26. Quest, quir, quis, quer=seek, search搜索
Quest, inquest, question, request, conquer,
27.Sal=salt 盐
Salt, salty, salad, salary,
二. 常见的前缀
1. dis-否定,
dishonest, dislike, disappear,
2. ne-, n-,否定
none, neither, never,
3..un-否定
unable, unemployment, unhappy, unlucky,
4. mis-错误，
mistake, mistook, mistaken, mislead, missing, misunderstand, 5. a-在…之上，向…”
aboard, aside, above, aback, abroad,
6. en-,表示在内，进入”
enter, entrance, enjoy, enrich, environment, envelope,
7. ex-,表示外部，外”
exit, expand, export, except, experience,
8.inter-,表示在 .... 间，相互”
international, 9.interaction, internet,
10.表示中，中间”
midnight, midsummer, midnight, midsummer
12.out-,表示在上面，在外部，在外”
outline, outside, outward, outdoor,
13.over-,表示在上面，在外部，向上，超过”
overlook, overhead, overboard, overeat, oversleep,
14. pre-,表示在前，事先，预先”
prewar, prehistory, prediction, preface, prepare, prefer, refer, 15. super-, sur-,表示在…..之上”
surface, supermarket, superman, superstar,
16. under-,表示在…..下面，下的”
underline, underground, underwater
17. up-,表示向上，向上面，在上”
upward, uphill（上坡）upstairs,
18. fore-,表示在前面，先前，前面”
forecast, foretell forehead, foreground,
19. re-,表示再一次，重新”
retell, rewrite, repeat, renew, recite,
20. al-表示完整，完全”
alone, almost, overall, already, also, always,
21. tele-,表示远离”
television, telephone, telegraph
22. trans-,横过，贯通
transport, translate, transportation,
23. en-,变成动词
enable, enrich, enjoy, encourage,
24. twi-,表示二，两，双”
twin, twenty, two, twelve, twelfth,
25. kilo-,表示"千，千分之一
kilometer，kilogram
26. phon-,声，音调”
phone, phonograph
三. 常见的后缀
1. -an, -ian, ??地方的人American,
2. -er,表示"从事某种职业的人，某地区人"比较级
banker, observer, Londoner, villager, nicer, smaller,
3. -ese,表示"…国人，”
Japanese, Chinese
4. -ess,阴性人称名词，
actress, hostess, waitress,
5. -ian,地方人，信仰….教的人，从事…职业的人Christian, musician, Australian,
6. -ist,表示"从事…研究者，信仰…主义者"
pianist, dentist, artist, chemist
7. -or,表示"…者"
author, doctor, operator, actor,
8. -age,表示"状态，行为，身份及其结果，总称"courage, encourage, shortage, , marriage, message, cabbage,
9. -dom, 表示"等级，领域，状态"freedom, kingdom, wisdom
10. -ice,表示"行为，性质，状态"notice, service,
11-ion, -sion, -tion,"行为的过程，结果，状况"
action, solution, conclusion, expression, correction 12. -ment,表示"行为，状态，过程，手段及其结果treatment, movement, judgment, punishment, argument, instrument, equipment, statement,
13. -ness,表示"性质，状态，程度"
goodness, kindness, , friendliness
14. -ship,情况，性质，技巧，技能及身份，职业hardship, membership, friendship
15. -th,表示"动作，性质，过程，状态"
depth, wealth, truth, length, growth
16. -ure,"行为，结果",
pressure, failure, future,
17. -hood,人和事物总和
neighborhood, womanhood, childhood,
18. -ly,…地（变副词）possibly, swiftly, simply, carefully, clearly
19. -able,能的suitable, comfortable,
20. -al, 的natural, additional, educational, final,
21. -ing,具有性质的
touching, interesting, boring, exciting, surprising, -ing,动作过程结果”
building, writing, handwriting,
22. -ish,的
foolish, , selfish, foolish,
23. -ive,的
active, impressive, native,
24. -ful,的
beautiful, wonderful, helpful, helpful,
25. -ous,的
dangerous, generous, various, famous, serious, delicious, 26. -ern,方向的
eastern, western, southern,
27. -ward,方向
downward, forward，upward
28. -teen,十几
thirteen, fourteen
29. -ty,几十
fifty, sixty，forty，
30. -th,第几
fourth, fiftieth, fortieth.
31. -an,人
Roman, European, American, Australian,
32. -ish,人或的
English, Spanish, Spanish,
33. -est,最高级
highest, tallest, highest, smallest, 34-less,表示否定，
countless, careless, fearless,