词根：preci(prais, pric, priz) = price（价格, 价值）

  来源于拉丁语 pretium 价值,prais,pric,priz为preci的变形。

同源词：

1. appreciable [可以给某物定价的ap<ad(=to)+preci(=price)]
  adj. 可感知的；可观的；可估计的
  appreciate  v.感谢；正确评价；欣赏；（充分）意识到
  appreciation n. 感谢；评价；欣赏；重视
  appreciative  adj.欣赏的；感激的
  appreciably  adv.相当地；明显地；可察觉地
  My uncle earned an appreciable amount of money in the stock market. 我叔叔在股市赚了一大笔钱。

2. depreciation [价格向下、降低de(=down)+preci（=price）]
  n. 降价，贬值；轻视；折旧
  depreciate  v. 降价；轻视，藐视
  depreciatory  adj.降价的；轻视的
  Capital equipment taxes are calculated after factoring in depreciation．资本设备税的计算要先考虑折旧因素。

3. precious
  adj.贵重的，珍贵的；<口> 十足的；可爱的 ad.非常，很
  precious metal  贵金属
  precious stone 宝石
  precious fool  十足的傻瓜
  precious cold 非常冷

4. appraise
  v.评价；估价 *ap<ad(=to), prais<preci(=price)

5. appraisal
  n.评价；估价 *ap<ad(=to), prais<preci(=price)
  interim appraisal 临时/中期评估
 
6. praise
  v./n. 称赞，赞美  *prais<preci(=price)
  praiseworthy adj.值得称赞的，可嘉的
  win high praise 赢得高度赞扬
  in praise of 赞美…

7. price
  v.给…定价；问…的价格几价格；代价；赏金
  pricy  adj.昂贵的
  price cartel 价格协定
  price index 物价指教
  price tag （贴在商品上的）价格标签
  market price 市价
  special price 特价
  fixed /set price 固定价格
  asking price 要价
  at cost price 按成本价
  put a price on one's head 悬赏捉拿或处死某人

8. priceless
  adj.贵重的，稀世珍重的；<口>极荒唐的；极有趣的 *pric<preci(=price)
  priceless paintings 非常贵重的画

9. prize
  n.奖赏；奖品；赏金；捕获物，战利品；（竞争等的）目标 v.评价；重视
  adj.该得奖的；了不起的；得奖的；作为奖品的 *priz<preci(=price)
  prizewinning  adj.获奖的，得奖的
  prize for good conduct 善行奖
  consolation prizes  安慰奖
  prize scholarship 成绩优良奖学金
  prize winner  获奖者
  prize medal 奖章

词根：sequ, secut, su = to follow（跟随）

  词根sequ来源于拉丁动词sequi;词根secut来源于其过去分词secutus,意为to follow,su为其变形。

同源词：

1. consequence (con<com(=with)全部+sequ(=follow)连续→全部连续不断的跟随而来→结果,后果;重要性)
  n. 结果，成果； [逻]结论； 重要性； 推论
  consequent adj.作为结果发生的
  consequential adj.作为结果发生的；重大的
  consequently adv.所以，结果
  Fifty-three people lost their homes as a consequence of the tornado. 那次龙卷风使53人失去了家园。

2. inconsequential（不一起跟随的 in (=not) + con<com(=with) + sequ(=follow)）
  adj.不合逻辑的，不合伦理的；不重要的，细小的
  An inconsequential number of people actually read my book. 只有极少数人认真地阅读了我的书。

3. obsequious（追随得让人感到碍碍脚的 ob(=in the way) + sequ(=follow)）(ob加强+sequ跟随,追+ious……的→拼命跟随别人)
  adj.奉承的；拍马屁的
  It's difficult for me to trust obsequious people. 我很难信任阿庚奉承的人。

4. subsequent（在下面或尾部接着发生的 sub(=under) + sequ( =follow)）(sub在后面+sequ跟随,追+ent表形容词→随在后面的)
  adj.后续的；以后的
  subsequently adv. 此后，其后，随后
  subsequence n.后继
  Subsequent tests revealed that she was suffering from pleurisy. 随后的检查结果表明她患上了肋膜炎。

5. persecute（坏事一直跟着per （=through,throughout) + secut(=follow)） (per始终+secut跟随,追+e→从头跟到尾→跟踪→迫害)
  vt. 迫害；纠缠；为难
  persecution n.迫害；纠缠
  persecutor n.迫害者
  I was persecuted for months by an IRS representative who said i owed more taxes. 几个月以来，我一直被一位美国国内收暑职员所纠缠，他说我欠缴更多税金。

6. prosecute （事物追踪行迹 pro(=before) + secut(=follow)）(pro在前+secut追随+e→追随到[法院]前面→检举;指控)
  vt.检举;指控;起诉；从事，经营
  prosecution n.起诉，告发；从事，经营；控方，原告；检察当局
  prosecutor n.检察官；起诉人
  The DA decided not to prosecute the young man,as it was his first offense. 鉴于那个年轻人是初犯，地方检察官决定不起诉他了。

7. ensue（紧接在某事物的后边发生 en (=intensive) + su<sequ(=follow)）
  vi. 随后发生；接着发生；因而发生
  ensuing adj.接下来的，接着发生的
  Widespread looting ensued after the race riot. 种族暴乱之后紧接着发生了大规模的掠夺。

8. inconsequent 
  adj.不一致的；不切题的 *in(=not) ,con<com(=with)
  inconsequent remark 不切题的话

9. sequel
  n.（前面发生的事的）继续，后续；结果，结局；（故事、电影等的）续集，续篇
  sequel to the novel 小说的续篇
  in the sequel 后来

10. sequence (sequ跟随,追+ence表名词→跟随→连续)
  n.接连，连续；（事件等的）顺序，序列；结果
  sequent adj.连续的；继起的；作为结果而产生的
  sequential adj.连续的，相继的，随之而来的；作为结果发生的
  in regular sequence 按次序地，有条不紊地
  in historical sequence 按照历史顺序
  a sequence of had harvests 连续歉收
  in alphabetical sequence 按照字母顺序

11. consecutive (con全部+secut跟随,追+ive ...的→一个接一个的) *con<com(=togehter)
  adj.连续的
  consecutive holidays 连休
  on five consecutive days 连续五天

12. execute (ex出去,即出去做+secut跟随,追+ecut<secut(=follow)→[判决]之后而来的就是执行)
  v.实行（要求、命令等），履行，实施，执行；处死；演奏；（按计划）制成
  executant n.实行者，执行者；演奏者
  execute a plan 执行计划
  execute a will 执行遗嘱
  execute a murderer 处死杀人犯

13. execution (execute[v.执行, 实行, 完成, 处死]+ion表名词→n.实行, 完成, 执行)
  n.（计划等的）实行，执行，履行；（作品等的）制作，完成；（音乐等的）演奏；技巧；（武器的）杀伤力，破坏效果；执行死刑，处决 *ex(=intensive),ecut<secut(=follow)
  executioner n.死刑执行人
  executor n.遗嘱执行人
  execution by hanging 处以绞刑
  a writ of execution 执行令

14. executive (execute[v.执行, 实行, 完成, 处死]+ive人→n.执行者, 经理主管人员)
  adj.执行的；实行的；有执行权的；行政（上）的，行政性的 n.（the ~） （政府的）行政部门；执行官，（企业的）经理；主管领导
  executive committee 执行委员
  executive director 执行董事
  Chief Executive 最高行政长官；<美>总统；州长
  County Executive 县长
  executive agreement （和他国政府间的）行政协定
  executive officer 行政长官
  executive order <美>总统的行政命令（一般写成 E.O.）
  executive privilege （为保护机密而享有的）行政特权，总统特权
  executive secretary 行政秘书，执行秘书

15. pursue (pur+su跟随,追+e→v.追赶, 追踪, 追击, 继续, 从事)
  v.追赶，追踪，追击，纠缠；进行，执行；以...为目标，追求 *pur<pro(=forth,before)
  persuer n.追赶者；追求者
  persue a robber 追赶强盗
  pursue pleasure 追求快乐
  pursued by misfortune 被厄运纠缠

16. pursuit (pur+su跟随,追+it走→n.追击)
  n.追赶，追击；追求；职业；消遣 *pur<pro(=forth,before)
  a fox with the hounds in hot pursuit 被猎狗猛追的狐狸

17. pursuant
  adj.遵循的 adv.相符地，一致地 *pur<pro(=forth,before)
  pursuance n.追赶，追求；进行；遵循
  pursuant to your instructions 依照您的指示
  pursuant to Article 12 （依据第12条）

18. sue (su跟随,追+it走→跟在后面走→相配)
  v.控告，对...提出诉讼；恳请，请求
  sue for a divorce/peace 提出离婚诉讼/请求和解

19. suit
  n.控告，诉讼；恳求；一套外衣 v.适合；适当；合...的心意；相配
  suiting n.西装料
  suitable adj.合适的，适当的
  bring a suit against somebody 对某人提出诉讼
  criminal/civil suit 刑事诉讼/民事诉讼

20. suitor
  n.起诉者，原告；（男性）求婚者

21. suite
  n.（重要人物的）随员；（由几部分组成的）一套家具；套房（如宾馆里除卧室以外还带有客厅、会客室的房间）；（物品的）一套；系列
  dinning-room suite 一款餐厅家具
  lounge/bedroom suite 一套休息室/卧室家具
  computer suite 计算机套装软件

22. unsuitable (un不+suitable[adj.适当的, 相配的]→adj.不适合的, 不相称的)
  adj.不适合的, 不相称的

23. suitable (suit[v.合适, 适合, 相配]+able……的→adj.适当的, 相配的)
  adj.适当的, 相配的

24. secondary (second第二+ary……的→adj.次要的, 二级的, 中级的, 第二的)
  adj.次要的, 二级的, 中级的, 第二的

25. second (second=sequ跟随,追→次等的→第二→秒[分为小时第一等级,秒为二])
  n.秒;片刻;瞬间

26. second  (second=sequ跟随,追→次等的→第二→秒[分为小时第一等级,秒为二])
  num.第二

27. ensue
  v.随起；结果（继续~）(en- = in- = upon)

后缀：-ing ①[名词后缀]

1、构成抽象名词，表示行为、状态、情况及其他

learning 学问，学识

feeling 感觉

shopping 买东西

walking 步行，散步

farming 耕作

schooling 教育

teaching 教导

ageing 老化

sleeping 睡眠

swimming 游泳

shipping 装运

broadcasting 广播

2、表示...行业、...学、...术、...法

tailoring 裁缝业

shoemaking 制鞋业

banking 银行业，银行学

accounting 会计学，会计

hairdressing 理发业

bonesetting 正骨法

sailing 航海术，航法

boxing 拳术

3、表示总称及材料（与...有关之物，制...所有的材料）

clothing 衣服

hatting 制帽材料

bedding 床上用品

fleshing 肉色紧身衣

sacking 麻袋布

shirting 衬衫料

bagging 制袋用的材料

coating 上衣衣料

felting 制毡材料

4、表示某种行为的产物，为某种行为而用之物、与某种行为有关之物，与某种事物有关之物

building 建筑物，楼房

carving 雕刻物

holding 占有物

giving 给予物，礼物

colouring 颜料

winning 赢得物，锦标

filling 填充物，填料

legging 护腿，绑腿

footing 立足处，立足点

washing 待洗的衣服

②[形容词后缀]

表示“...的”、“正在...的”、“...着的”、“使...的”

changing 正在变化的

burning 燃烧的

fighting 战斗的

developing 发展中的

rising 上升的

encouraging 振奋人心的

surprising 使人惊讶的

exciting 使人兴奋的

growing 成长中的

falling 下降的

③[构成介词]

excepting 除...之外

regarding 关于

concerning 关于

failing 如果没有

during 在...期间

considering 考虑到，就...而论

词根词缀：a-, ab-, abs-

【来源及含义】Latin: prefix; from, away, away from

【相关描述】This prefix is normally used with elements of Latin and French origins (abs- usually joins elements beginning with c, q, or t).

The form ab- is regularly used before all vowels and h; and it becomes a- before the consonants m, p, and v. The prefix apo- has similar meanings.

This list is a very small sample of the multitudes of a-, ab-, abs- prefixes that are available in dictionaries and those in this unit are only meant to present a few examples.

【同源单词】abampere, abampere centimeter squared, abampere per square centimeter, abarticular, abarticulation, abbreviate

词根词缀：academ-

【来源及含义】Greek > Latin: [originally, Academus/Akademus, a name of a hero in Greek mythology; then it became a gymnasium near Athens where Plato taught]

【相关描述】In the beginning, academy referred to the "olive grove of Academus" or "the groves of Academe". Plato established his school in 387 B.C. Music, philosophy, and literature were taught there. Some accounts say that Plato sat on the ground and taught while resting against the trunk of an olive tree.

Now academies generally exist as private-secondary schools, military institutions; as art, literary, and scientific societies; and institutions in the entertainment world. According to John Ayto, the more general meanings "college, place of training" derive from French.

【同源单词】academe, academia, academic, academical, academician, academicism

词根词缀：archaeo-, archeo-, archae-, arche-, archa-, archi-, -arch

【来源及含义】Greek: original [first in time], beginning, first cause, origin, ancient, primitive, from the beginning; most basic

【相关词根词缀】 Related "time" units: aevum, evum; Calendars; chrono-; horo-; pre-; Quotes: Time; tempo-.

【同源单词】antarchism, archaebacterium, archaeoastronomer, archaeoastronomy, archaeobacterium, archaeofauna

词根词缀：colpo-, colp-, kolpo-, kolp-

【来源及含义】Greek: womb, fold; vagina; from "bosom, lap, hollow"

【相关描述】The letter "k" is frequently used in place of the beginning "c" for many of these words.

【同源单词】aerocolpos, bathycolpian, colpalgia, colpectasia, colpectomy, colpedema

词根词缀：-esce, -escent, -escence

【来源及含义】Latin: beginning to be, becoming; to be somewhat; a suffix that forms nouns and adjectives

【同源单词】acaulescent, acquiescence, acquiescent, adherescent, adipescent, adolescence

词根词缀：genus, genesis-, -gen, -gene, -genesis, -genetic, -genic, -geny, -genous

【来源及含义】Latin: birth, beget; descent, origin, creation, inception, beginning, race, sort; kind, class

【同源单词】aerospace engineering, agenesis, autogenous, benign, benignant, benignantly

词根词缀：gov-, gover-

【来源及含义】Greek > Latin: to steer or to pilot a ship; to rule; a steersman

【相关描述】From Greek, kubernan, "to steer" and is related to words beginning with cyber-. From the Greek, Latin picked it up as gubernare, and guvernator, "to steer" or "to pilot a ship" from which we also get "gubernatorial".

【相关词根词缀】Cross references of word families related directly, or indirectly, to: "master, lead, leading, ruler, ruling, govern": -agogic; agon-; arch-; -crat; dom-; magist-; poten-; regi-; tyran-.

【同源单词】antigovernment, extragovernmental, govern, governable, governance, governess