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
alphanumeric, alphanumerical
antonis
arguer
Aspergic
astrometrically
augmented pattern
autoracks
backfilling thrower
blockade test
blocking oseillator driver
bodle
cantinier
case ejection
chill-inducing element
chudren
classification by geographical location
cocaine hydrochloride
commercial fisheries
complex unit
corpus geniculatum laterale
critical cross-section
deaf-aid
decannulated
deringing
design and production oriented coding system
disco-funk
dolichophyllus
doubl
environmental quality sensor
ethmia dentata
experimental performance
finishing up
full load saturation curve
Furina
geographical sphere
gum hose
hard swell (can)
heavy excavation
heavy industrial district
hemiparasites
hierarchic indexed direct access method
home-design
Hooker, C.
instrument line
iodol(e)
Ireland
isophthaloyl
ivimey
Jorge Mario Pedro Vargas Llosa
keep current
laisser
land plainer
masseuse
metallic shell
Micay, R.
micro-adjustment
myasthenia gastrica
nasopharyngofiberscope
Nizhniy Yenangsk
nodilymphatici lumbales
nonexportable
Papilla ductus parotidei
patent notice
pentaklasit
Phlebotomus minutus
pneumotoxic
polygons of forces
premeditated
Pressdin
pulse timer
Quaternary deposit
railroad wharf
rateaten
reconvention
reference format
relative adaptability
relaunders
remiform
rock province
rotelli
shot towers
silver plating katathermometer
steering locking angle
stick one's neck out
stomach aches
switch stepping
system of macroeconomic management
tab
TIFFA
torrejon de ardoz
travel writer
tuppence worth
unbrookable
undervaluation
unslot
Vaqueros formation
vords
waist-tree
Working-expenses
Yurak
zingiberaceous