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
a cameltoe
african yellowwoods
Alteutha
ananong
aneurogenic
Annedidae
automatic depressurizing system
ayw
Ballyquintin Point
battle fleet
Bayt Alī
besprinkles
bouncing bombs
Bryobia praetiosa
buckling load
caninophile
cascading style sheet
cattle-pen
chalchiguite
clairaudiently
collabefaction
compulsory retirement age
conscientiology
continuous frame
corona eraser
cosening
crude tar
desmutagen
draw bill
drolls
exempt trader
exponential sequences
flail mechanism
Guadalupe County
halimetry
Halsted-Reitan Neuropsy-chological Battery
healthcentre
heddens
helixes
hematopoietic stem cell
heneicosanoic acid
high-gravity fuel
huixiang juhe pills
hydrocotyle javanica thunb. var chinensis dunn ex shen et lion
intense emotions
interleaved gear
iron winds
Jerte
jog trough conveyer
joggle frame
Kānī Rash
lamparo
Laue theory
mahaseer
manteno
metaphysical realism
modularot tube
mollealle iron
n-fold covering
Nokhar
Noordzee Kanaal
not confirm
nucleotide sequence
Occoquan Creek
openouts
Oppenheim's siyn
overflow signal
pagurus luticola
peronospora manshurica
plastics spray coating
Potameia lotungensis
primordial ecosystem
procedure control word
proleptically
rancheras
reciprocating gasoline engine
reverse-current circuit breaker
rotation detection mechanism
Samnites
sectility
Sestu
signal track circuit
silo bunker
spags
SQA
street-door
syncarp
TLD-detector
toluylenediaminem
top-storey
tripeptidyl
turn-broacher
unitarian theory of antibodies
unshared
uveitis
vulnerability scanning
wedges method
wet seasons
witchwood
yard management
yellow earth
yttrium orthoaluminate (yalo) (yap)