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
amblyopia
Anson unit
antiradiation missile
artehs
arterial/venous
ASCAL
aspergillus terricola
atmospheric optics
auto-induced reaction
backward acting decoder
bacteriastrum elongatum
birinci sixli
bismuthotartrate
Biumenbach's plane
bodas
brake surface
british high commission
bunjara
Canzo
center mast
charles spencer
circulation of a bank
citrination
Cline's splint
Cnemidophorus exsanguis
coincide counter
cross-pollinate
danaite (cobaltoan arsenopyrite)
dead cat bounce
Decimomannu
dindas
distance echo correction
don't let the bedbugs bite
dyelines
earthy tripolite
EasyCAD
edge clocked D-type register
edge-file
enterobacter cloaca
ephedrina
fire and fagot
fossa
genus Cystophora
gold-black coating
Grifuvin
Guitry
historical profit
Hood River County
hoummous
icterus index
imperfectives
laikipias
liquid miscibility gap
lloyd's membership department
low temperature adiabatic calorimeter
lower resistance pH glasselectrode
macroprocessing
main tuning
Molevac
molten bath
morning loan
narrow neck
nongermanium
noodlers
Ober-Seemen
observation learning theory
one-step operation
outdoor play
oxynoid
p dot
pilot-ignition fuel
Plovdiv
pro-Arab
psychogogue
qgo
radial absorption
reactive volt-ampere meter
readvising
Rock Cornish hen
sales shipment transaction
secondary seal unit
selection approach
ship control console
Simra
strato-cirri
take charge of
tapioca pearls
theory of flexure
thermonuclear conditions
thiolato
tung tung
Umsong
undressed casting
Ur-ancestor
variabilities
vibrational state
vlasovite
waveguide corner
West Miami
within means
Yanūfī, Jab.al
zostrix