时间:2018-12-19 作者:英语课 分类:英语PK台


英语课

 一个英语单词可分为三部分:前缀(prefix)词根(root)后缀(suffix)。位于词根前面的部分就是前缀。前缀,可以改变单词的意思。


contra- 表示“反对,相反”
contrary = contra + ry → adj. 相反的
contradict = contra + dict(说)→ 反着说 → v. 同…矛盾
contrast = contra + st(站)→ 反着站,面对着站 → vt. 对比;反差
counter-表示“反的,反对”
counteract 1 =counter + act(行动)→ 反对的行动 → v. 抵抗
counterpart = counter + part(部分)→ n. 对应的人或物
de-
1. 表示“去除,取消”
desperate = de + sper(希望;prosperity → pro 2 + sper +ity → 前面有希望, → n. 繁荣昌盛)+ ate → 去掉希望 → adj. 绝望的
despair = de + spair(由sper派生而来)→没了希望 →n./v. 绝望 
detect = de + tect(遮盖;protect = pro + tect → 在没遇到危险前就遮盖 → v. 保护)→ 去掉遮盖 → v. 发现,侦查
2. 表示“否定,反”
decompose 3 = de + compose(组成)→ 与组成相反 → v. 分解
destruction = de + struct(建造)+ ion → 与建造相反 → n. 破坏 

1 counteract
vt.对…起反作用,对抗,抵消
  • The doctor gave him some medicine to counteract the effect of the poison.医生给他些药解毒。
  • Our work calls for mutual support.We shouldn't counteract each other's efforts.工作要互相支持,不要互相拆台。
2 pro
n.赞成,赞成的意见,赞成者
  • The two debating teams argued the question pro and con.辩论的两组从赞成与反对两方面辩这一问题。
  • Are you pro or con nuclear disarmament?你是赞成还是反对核裁军?
3 decompose
vi.分解;vt.(使)腐败,(使)腐烂
  • The eggs began to decompose after a day in the sun.鸡蛋在太阳下放了一天后开始变坏。
  • Most animals decompose very quickly after death.大多数动物死后很快腐烂。
标签: 英语PK台
学英语单词
acoustical reflection factor
actual road(wear) test
Alajogi
alaska-fairbanks
arm and a leg
arrangement of bar
athroat
batteryoperated
be not sb's pigeon
benzi
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caseload forecast panel
cellular furrow
chemogenic reaction
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collecting tubule
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elephantiasis anaesthetica
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English form of closing the ledger
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finish turning lathe
foliae branchialis afferens arteria
gender-fluid
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guide bearing collar
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industrial port
iron trifluoride
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kiln dry(ing)
krabi (mueang krabi)
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mower section
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nernst's sorption
non slip cumulative type
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of ... choice
one column adder
order Zygnemales
Parr turbidimeter
petous
phenoplast molding compound
picker knives
piece-by-piece distribution method
popular transmission electron microscope
position and type of fracture
posterior edge
prefix number for railway toll call
professional technical education
prompt date
pulmonary concussion
Pyracantha atalantioides
radical ideal
random collision
rectilinear range of points
rose porcelain
Saqqarah
service configuration
sleave
soft ignition
Soloneshnoye
spilopterus
sports requisite
state-of-the art facility
Stavisky affair
subatlantic age
sulfacytine
summer-fallows
superior nasal arteriole of retina
synder
taalon
traditional university
Tsineng
veneer splicer
Villa Atuel
woollen knitwear