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
arc striking and stabilising voltage
Arnbach
back hoe dredge
balletlike
batch (-like) process
BBM (break-before-make)
beakless ignition
Belloste's solution
Betancourt, Ingrid
blending composition
bruce c.
cannon ball mill
Chlorophyta
clinicopathogenesis
coefficient of magnetic dispersion
coexcitation
concupyssible
Corydalis homopetala
crimp into crime
cross reacting antibody
cyanoformate
danseur noble
daylong
death duties and costs
deconvolution microscopy
deductive-nomological model of explanation
demand interval indicator
Deparkin
depreciation fund
diametre
direct current servomotor
distentions
dry powder
dumb as a rock
echo-pulse
electronic pulsator
elliptic curve
explosive bullet
extraordinary disburse
fall out step
first-level addressing
flash projector
flip dogs
flown off the handle
formyl piperidine
general space plan
geohistory
GHE
great minds think alike.
hoist of flag
horned melons
How are you
Illicium fargesii
imperial unit
IREWS
jobsite
Ketting
Kocherezhky
lampic
leydigarche
luteotrophin
Marêcage
mechanical indicator
NAOC
narcosis Nnssbaum's
no number
normolipidemic
octamethylphyropyosphoramide
omkar
Ophiorrhiza ensiformis
PLADaily
Podocarpus nagi
poikilocytes
porcules
pulse analyser
Renaissance church
repeller wheel sprocket
roll oil
seasonal catch
songline
spay-neuter
storage selection circuit
submarine sea-going boat
tea-leaves
tension test specimen
testicular dysgenesis
thems
totasuture
triangular matrix
tummy bug
two row check row planter
untackling
vasodilate
vegetable waxes
volency
warship
wazzocks
wijekoons
wollman
woodbind
wooden lifeboat
x-cut crystal