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
abu kammash
acanthor
AHF-B
albert hall
allbusiness
Aprilian
Atlantic ocean region-east
automatic-frequency-control system
basis period tax
beguilers
Beira
bilinubinemia
bnd.
burner orifice
castellated shaft
CB-1954
centrally connected power supply
cluster rock
CMBR
cycle network
dammed
days quota
deci-gram
derived dimension
Dexacillina
dimethylaminobenzophenone
dispiritingly
Dithelite
draftion board
dry dressing
end-fire (ordinary) linear array
epicycle motor
erenler dagi
external selection storage
fathead
fertilized egg of Ascaris lumbricoides
fleetwoods
foria
genus Geothlypis
gross ... out
guidanuce information
heat of swelling
hellemond
hoisting guider
hollyhock
hyperchromatic cells
intermenstrual bleeding
iron hydrate
itersoniliaperplexans derx.petal blight of chrysanthemum
Jauregg
jimjams
lead byte
Leninabad
ligamenta capsulare
lithium fluoride whisker
mains hum
malaxis ophioglossoidess
mcchord
merchandise sales
monologued
noldes
numerical integration
ocean area reconnaissance submarine
optical coupler
oxalotrophic
Palaeonisciformes
partial safety factor for strength of material
planar cross set
Pleurospermum szechenyii
plot chart on
premature ventricular contraction
propositionized
Proto-Bantu
pseudospermium
Puruê, R.
put sb to bed
quantive structure-activity relationship studies
Rh-positive blood type
rossiters
sealing of a casting
secondary pholem
semi-underground
shared vision
shiftas
single shafting
speed of instrument
Sporledera
spot brocker
stamened
starballs
steel slip gauge
strike the flag
support aviation
tension reducing
tomato bread
ultimate output
ultraviolet photoeffect
urban-lands
volger
welded splice
work center capacity change
zils (egypt)