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
aculops oldhamii
air bearing table
albas
Alyan
amphitheatres
antithetical dominance
asifs
atelochellia
automatic turnoff
Barrax
bedsheets
built-soap powder
called station.
cell baffle
characteristic solution
cis-trans
combined cutting
continentalise
contract for borrowings
data model entity
decanoylacetaldehyde sodium hydrosulfite
democraties
distance between centre plates
diving goiter
doctrinairely
dorsal cerebellar veins
double-cone viscometer
elastasetoxoid
elevatored
empropriate
extra-fine steel
foolmonger
gormandise
green washing
habitancy
high & low points method
hull strength assessment
hypofibrinogenaemias
i-hende
Ignac
infortunate
intercorporate
it is about time
kaleri
kamiokande
L-shaped incision
library object
load-bearing frame
mail address
margin of tongue
marine environmental protection
micheli
more enough
multiple-spindle chucking automatics
nervus parasympathicus
net markdown
nine-to-five
non-intervention
nonreproducing
nyquist velocity
ontological proof
orgonity
orthopantomographic
overdisperses
oxypropylenediisoamylamine
pancreatic duct ligation
panic button
patriotic health movement
pentacard
phenoselenazine
phyllocoptruta peregi
place of export
ponency
pose as sb
power station internal consumption
premature labors
print server
provisional light
rotating shafts
sarcased
savina
schizocarpie
seed sorting by salt water
semichoruses
sex rate
slow-access storage
so longs
split upon
Suiformes
sulfate
suspension of authorization
swinerton
Swiss steaks
take leave to
take-off speed
thistledowns
thurfyl nicotinate
tiotidine
unbent
vergeture
whitetail
wind tunnel aerodynamicist