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
adamantinum adenoma
aged top
Almair
amblyseius tamatavensis
antiverts
arrogations
athelstans
baby-cut carrots
Bagar
barperson
beeper gun
bell nipple
beta-pleated sheet
bitsier
Brandes, Georg Morris Cohen
buckling of shell
chili peppers
coloured lamp boot
compressional-dilatational wave
crepe marocain
Cyclapen
dnepropetrovsk (ekaterinoslav)
dommages
downstair
earth kiln
ecdemomania
electro chemical property
element of phase shifter
emission characteristic curve
epithelializes
erithacus johnstoniae
error log
exservice man
Famiclones
flap pocket
flexible job
functional defect of neutrophilic granulocytes
fusaria
genus Pernis
geographical analogy
go the rounds
habere facias seisinam
HARQ
have one's heart in one's mouth
how't
IDI
image scintillation
intracrystal
invex
jurassic perid
Kechumaran
Kosikha
loading cable
loan agent
lowset
macrogeographic
medical information processing
millimeter wave lasers
N-1-naphthylbenzamidine
neutralization tank
nonglassy refractory
number of repeated impact to breaking
pbhp
permanent loss
personnel carriers
petromyzontidaes
plaza de armas
potentiometer pyrometer
poynters
precession in declination
Pseudogramma
pumps in
refelt
reserved area
restricted area (r)
ROI,R.O.I.
roller stamping die
Saccharomyces ellipsoideus
self-righteousnesses
self-scrutinies
session network service
sheepcot
short-time average value
sludge oxidation
spin coated
spinning box
string manipulation
submarine geomorphology
surjunctive group
ta'if
teledyne
Tempidorm
Tonocholin
top-poster
total suspended particulates
trepanize
trunner
upslope flow
vocabularian
warning wheel
water neutron shield
wave form calculator