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词根:tra, tract(treat) = to draw(拉拽)

  来自拉丁语trahere(=to draw),过去分词tractus,意为to draw ,变形为treat。词根tract的意思与tend正好相反,在英语中,tract 直接作为名词,意思为“一片土地”,“地带”。

同源词:

1. detract(向下拉de(=down) + tract(=draw))
  v.from + sth;sth + from + sth 降低,贬低(名声、价值等)
  detraction n.诽谤,责难;减损
  detractor n.责难者,诽谤者
  detractive adj.诽谤的,责难的
  Her excess of makeup detracts from her natural beauty. 好的浓妆有损她的自然美。

2. intractable(无法拉拽的 in(=not) + tract(=draw))
  adj.不听话的,倔强的;难以控制的,难以驾驭的
  intractability n.难以控制
  He died at 39,a victim of an intractable cancer. 他因癌症不治而死去,终年39岁。

3. retractable(可以向后拉的re(=back) + tract(=draw))
  adj.可以取消的,可以撤回的;伸缩自如的,可以蜷缩的,可以塞进里面的
  retract v.撤回,取消;使一下子进去
  retraction n.回收,撤回;蜷缩
  retactile adj.可以收缩的
  I bought a set of retractable awnings for all my home's windows. 我为我们家所有窗户买了一套伸缩遮阳篷。

4. entreat(在里边拉、拽 en(=in) + treat<tract (=draw))
  vt. 恳请;乞求
  entreaty n.恳求,哀求
  entreating adj.恳求的,乞求的
  entreatingly adv.哀求地
  The policeman entreated the suspect to surrender without violence. 警察恳求请嫌疑人自首投降,不要暴力反抗。

5. maltreat(不好地拉 mal (=bad) + treat<tract(=draw))
  vt. 虐待,粗暴地对待;滥用
  maltreatment n.虐待;滥用
  Occasionally,day care workers maltreat the children entrusted to their care. 托儿所的员工有时会粗暴地对待入托的孩子。

6. abstract
  n.摘要,摘录;抽象概念 adj.抽象的 v.抽出,提取;偷 *abs<ab(=away)
  abstracted adj.心不在焉的,发呆的
  abstractedly adv.心不在焉地,走神地
  abstract of a sermon 布道摘选
  abstract metal from ore 从矿石中提炼金属
  abstract a wallet from his pocket 从他的口袋里偷走钱包

7. abstraction
  n.抽象;抽象概念;民不在焉 *abs<ab(=away)
  with an air of abstraction 一副心不在焉的样子
  in a moment of abstraction 出神的瞬间

8. attract
  v.吸引,引起(注意、兴趣);引诱 *at<ad(=near)
  attract attention 引起注意
  Do you feel attracted to her ? 你对她有好感吗?

9. attraction
  n.吸引力;引力;吸引人的东西 *at,ad(=near)
  attraction of a pretty girl 美女的魅力
  attractions of a big city 大都市的各种诱惑

10. attractive
  adj.吸引人的,有魅力的 *at<ad(=near)
  attractive personality 有魅力的个性
  a most attractive girl 非常吸引人的女孩
  attractive price 吸引人的价格

11. contract
  v.(使)(肌肉等)收缩;缩小,缩减;患(病);负(债);沾染上(不好的习惯等);约定,订合同
  n.契约,合同;承包合同 *con<com(=together)
  contractual adj.合同(上)的
  contractible/contractile 减少的,收缩性的
  contract a muscle 使肌肉收缩
  Metals contract as they become cool. 金属冷却时会收缩
  I have contracted a bad cold .我得了重感冒。
  contract with a firm for 1,000 tons of cement 与一家公司签订1,000吨水呢的销售合同
  exchange contracts 社会契约/口头/书面合同
  conditions of contract 合同条件
  contract price 约定价格
  breach of contract 违反合同
  contract marriage 协议试婚
  work on contract 按合约行事

12. contraction
  n.收缩,缩短,缩小;收缩的东西;缩略形式 *con<com(=together)
  the contraction of a muscle 肌肉收缩
 
13. contractor
  n.立契约者;承包人 *con<com(=together)
  general contractor 总承包人
  engineering contractor 工程承包人
  army contractor 军需承包商

14. extract
  v.(通常指用力)拔出;榨取(果汁等);提取;设法得到(信息等);(从书籍、演讲中)摘录,选用 n.提炼物,浓缩物,浓缩汁,精;摘录,选萃 *ex(=out)
  extract a tooth / a cork from the bottle /a bullet from a wound 拔牙/从瓶中拔出软木塞/从伤口处取出子弹
  extract money /information from him 设法从他那儿弄到钱/情报
  oil extracted from olives 从橄榄中提炼出油
  vanilla /beef extract 香草精/浓缩牛肉
  extract of mait 麦芽油
  exktracts from a long poem 一首长诗的摘录部分

15. extraction
  n.拔出,抽出;血统,出身 *ex(=out)
  extraction of a tooth 拔牙
  an American of South Korean extraction 韩裔美国人

16. protract
  v. 延长,拖延(时间) *pro(=forward)
  protraction n.拖延,延长
  protracted visit/argument 持久的访问/争论
  protracted meeting (在某一时间内持续的)信仰复兴布道会

17. protractor
  n.量角器,分度规

18. subtract
  v.减去,扣除 *sub (under)
  6 subtracted from 9 gives 3. 9减6等于3

19. subtraction
  n.减去,减法 *sub(=under)
  subtrahed n.减数《subtrah = aubtract = to draw;-end 名词字尾》 cf.minuend (被减数)
  Two from five is a simple subtraction. 5减2是很简单的减法。

20. tract
  n.(山林、农田等)广阔土地;[解]管;(特指涉及宗教、政治等的)小册子,短文
  wide tracts of desert in North Africa 北非广阔的沙漠地带
  digestive /respiratory tract 消化道/呼吸道
 
21. tractable
  adj.易驾驭的;易处理的

22. traction
  n.拖拉,牵引;牵引力
  electric /steam traction 电力/蒸汽牵引(力)
  traction engine 牵引机车

23. tractor
  n.拖拉机,牵引车(牵引农业机械或其他载重装备)

24. distrait
  adj.心不在焉的,精神恍惚的 *dis (=away)

25. distraught
  adj.心烦意乱的;几乎发狂的

26. entrails
  n.内脏,肠,(物体的)内部

27. entrain
  v.使(军队)上火车 *en(=into)

28. portray
  v.画,为...画像;(用语言)描写;(在戏剧中)饰演...角色 *por<pro(=forth,forward)
  portrayal n.描画;描写

29. portrait
  n.肖像(画),画像,相片;(用语时行的)描写 *por<pro(=forth,forward)
  portraitist n.肖像画家
  portraiture n.肖像画;描写

30. trace
  n.足迹,痕迹,行踪,踪迹;微量,极少量;(马车的)缰绳,挽留 v.查出...的踪迹,跟踪;探出;画轮廓;描绘;(用绘画工具)刻印;复写;(费力、细心地)写(字);追溯,探索来由
  traceable adj.可描画的,可描摹的;可追溯的;可追踪的
  tracing n.描摹;追踪
  traces of an ancient civilization 古代文明的踪迹
  mere trace of smile 淡淡的微笑
  trace of fear 一丝恐惧
  trace element 微量元素
  Archaeologists have traced many Roman in Britain. 考古学家们在英国发掘出很多古罗马人留下的道路。
  His fear of dogs traces back to a childhood experience. 他对狗的恐惧源于他童年的经历。

31. tracer
  n.映描员,描图者;追踪者
  tracer bullet /shell 曳光弹
  tracer element 示踪元素

32. track
  n. 踪迹;小路,小劲;历程;常规;轨道
  tracked adj.限制在轨道上
  trackless adj.无足迹的
  tracker n.追捕者
  trackage n.[集合用法]铁路轨道;铁路的使用权《-age抽象名词字尾》
  tracks of a rabbit 兔子的足迹
  track through the forest 穿越森林的小径
  the beaten track 常规,惯例
  track of a comet 彗星的轨道
  off the track 离题,误入歧途
  single/double track 单轨/双轨(铁道)
  running track 跑道
  track meet 田径运动会
  track system <美>分轨制(按照成绩编班)

33. tracking
  n.移动或跟踪摄影;(利用雷达对火箭、导弹)追踪;按学生能力,成绩分组
  tracking shot (电影、电视的)移动镜头
  tracking station (对人造卫星、宇宙飞船等的)跟踪站,观测站

34. trail
  n.踪迹,痕迹;拖拽物;(彗星等的)尾巴;(去或烟雾的)一缕;裙裾;(打猎中)猎物的足迹,气味;(荒野或荒地的)小径;持枪姿势 v.拖拽;(人)拖沓而行;(使烟、云等)飘出;(发丝)垂下;追随,追踪;(藤)蔓延,(草等)蔓生;立正持枪
  vapor trails (高空中飞行的飞机留下的)雾化尾迹
  Smoke trailed from the chimney. 烟雾从烟囱里袅袅飘出。
  trail a wild animal /criminal 追踪野兽/罪犯
  roses trailing over the walls 蔓过围墙的蔷薇(藤)
  Trail arms !(军令)正立持枪!

35. trailer
  n.(运输用)拖车;(用汽车拖着的旅行用的)活动房屋;(电影、电视的)预告片

36. train
  v.教导,培训,锻炼;使对准,瞄准 n.列车,火车;列,队列;(一)连串,(一)系列;长袍(或长裙)拖地的部分,裙裾;随之而来的情况
  trainer n.(特指运动选手、塞马、马戏团动物等的)训练员,教练,教练员;驯兽员,教练机
  trainbeares n.(仪式等中)拉衣裙者
  trainee n.实习生;新兵
  a train of camels 一队骆驼
  What an unlucky train of events! 这一连串的事真不幸!
  in train 准备就绪

37. training
  n.训练
  training college 职业学院;(旧时的)师范学院
  training ship 教练舰
  go into training 投入训练

38. trait
  n.特征,特性;少许,微量
  national traits 国民性
  culture traits 文化特性
  a trait of humor 一点幽默

39. retreat
  v.(特指军队)后退,撤退;凹陷 n.后退,撤退;撤退信号;休养所;藏身处,避难处,隐退处 *re(=back)
  retreat from the front 从前线撤退
  retreating forehead 凹陷的额头
  beat a retreat 撤退
  The army was in full retreat. 军队全都撤退了。
  quiet country retreat 安静的乡村休养所
  mountain retreat 山庄
  summer retreat 避暑地

40. treatment
  n.待遇,对待;处理(方法),处置;治疗(法)
  treatment of political prisoners 政治犯的待遇
  new treatment for cancer 新的癌症治疗方法
  She is still under treatment in hospital . 她还在医院接受治疗。

41. treaty
  n.条约,协定;约定,协商
  peace / commercial treaty 和平/通商条约
  nuclear non-proliferation treaty 防止核扩散条约

42. treatise
  n.(学术)论文,专著
  treatise on racial prejudice 有关种族偏见的论文
  Two Treatises on the Civil Government (洛克的)《政府论(两篇)》)

词根:vuln (vult) = wound

  来自拉丁语的vuln 意为wound,它的变形为vult。


同源词:

1. invulnerable (不能使受伤的in(=not) + vuln(=wound))
  adj.不能伤害的,固若金汤;无懈可击的
  Young men who take steroids can erroneously believe themselves to be invulnerable. 服用类固醇的年轻人会错误地认国他们是打不倒的。

2. vulnerable
  adj.易受伤的,易受攻击的;有弱点的
  vulnerability n.易受攻击;有弱点
  position vulnerable to attack 易受攻击的位置
  people who are vulnerable to criticism 易受批评的人们

3. vulture
  n.秃鹰;(从他人的不幸中牟取暴利的)贪婪的人 *vult<vuln(=wound)

后缀:-ed [形容词后缀]

1、加在名词之后,表示“有...的”、“如...的”、“...的”

coloured 有色的

booted 穿靴的

moneyed 有钱的

dark-haired 黑发的

gifted 有天才的

kinde-hearted 好心的

talented 有才能的

conditioned 有条件的

haried 有毛发的

privileged 有特权的

winged 有翅的

skilled 熟练的

beared 有胡须的

balconied 有阳台的

aged 年老的,...岁的

horned 有角的

2、加在动词之后,表示“已...的”、“被...的”、“...了的”

failed 已失败的

fixed 被固定的

liberated 解放了的

determined 已决定了的

retired 已退休的

extended 扩展了的

condensed 缩短了的

confirmed 被证实了的

educated 受过教育的

returned 已归来的

married 已婚的

condemned 定了罪的

restreicted 受限制的

considered 考虑过的

closed 关闭了的

oiled 上了油的

finished 完成了的

wounded 受了伤的

词根词缀:ichor-

【来源及含义】Greek: fluid [distinct from blood] that flows through the veins of the gods; by extension, "watery part of blood or milk," used in the sense of "thin, serous or sanious fluid, especially from a wound or sore"

【相关词根词缀】Cross references of word groups that are related, partially or extensively, to: "blister, bump, swelling": bull-; papulo-; pemphig-; puro-; pus-; pustu-; pyo-; suppurant-; tum-; vesico-; vesiculo-.

【同源单词】ichor, ichorhemia, ichoroid, ichorous, ichorous pus, ichorrhemia

词根词缀:noci-, noc-

【来源及含义】Latin: to injure, to hurt; injury, harm, harmful; trauma; a noxious or deleterious agent or influence

【相关词根词缀】 Cross references related to "pain, hurt; suffering, injury" word families: -agra; algesi-; algo-; angina-; dolor-; Masochism; odyno-; poen-; pono- (toil, work; pain); Sadism. Cross references of word families that are related directly, or indirectly, to: "wound, harm, hurt, injure": nox-; traumat-; vulner-.

【同源单词】antinociception, hygienocic, nocebo, nocebo effect, nociassociation, nociception

词根词缀:nox-, noxi-, noc-, nui-, nec-

【来源及含义】Latin: harmful, to do harm; injury, injurious; hurt, damage

【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "wound, harm, hurt, injure": noci-; traumat-; vulner-.

【同源单词】innocence, innocency, innocent, innocently, innocuous, innocuously

词根词缀:plag-, plagu-, plague-

【来源及含义】Greek > Latin: strike, stroke, blow, wound; beat the chest; lament loudly [while beating the chest]; pestilence

【同源单词】black plague, bubonic plague, pestis minor, plague, plague, plagueful

词根词缀:-plexia, -plexias, -plexies, -plexy, -plectic, -plexic

【来源及含义】Greek: stroke, wound; used in medicine to denote "a condition resulting from a stroke"

【同源单词】apoplectic, apoplexy, cataplexy, electroplexy, neuroplexia, neuroplexus

词根词缀:spiro-, spir-, spiri-

【来源及含义】Greek, speira > Latin, spira: coil, coiled; twisted, turning

【相关描述】The Greek speira refers to anything which is wound or wrapped around something. In the plural, speirai, it includes the twisted folds or coils of a serpent or of a net; therefore, it refers to anything which is coiled, wreathed, or twisted; such as, a coil of a snake.

Careful, there is another spiro- which means "breath of life; breathing, breath".

【相关词根词缀】There are other "coil" words at this helico- unit.

【同源单词】conchospiral, spiradenitis, spiradenoma, spiral, spiral, spiral

词根词缀:traumat-, traumato-, trauma-, traum-, -trauma, -traumatic, -traumatically

【来源及含义】Greek > Latin: wound, wounded; bodily injury

【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "wound, harm, hurt, injure": noci-; nox-; vulner-.

【同源单词】acoustic trauma, atraumatic, atraumatically, auditory trauma, barotrauma, blunt trauma