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
altariq
antiradar
apostrophise
artotypes
auxo-
axi-compressor
balance due from you
Balmer continuum
bauhins
behind tape reader system
beurre-fondu
buckwheat flour
Burdorite
cannon-fire
capitals of afghanistan
celosias
cobalt edetate
collect stamp
committed orders
computer program configuration item test procedure
contact size
contradict the defendant's witness
corynespora sesamum (sacc) goto
creating value
critical content
custom installation
denture flask
Deyeuxia effusiflora
digger plow
dluge
double curvature
dove color
dwarf spheroidal galaxies
electrical mechanical dissociation
electro pneumatic control
entropy function lithofacies map
file-cleaner
filippis
floorhead
freestyle relay
futtock shroud
gravity potential energy
half shadow
high-low corrugation
hydrophysical law
inditched
iridium(vi) selenide
iyars
know fine
knulling
kromah
left-homogeneous
Lockwood
mechanism of the harmonic gear drive
mercury tank
metallic packaging
mondales
musterbation
myriradiol
non-Q-switched laser
norma frontali
normal permeability
not so
pathline
pegless
Pepinster
periodical variation
pesewa
position isomer
practicalnesses
Prandin
primer holder
Psychotria henryi
q feel
rashly
rated travel time
RIPE3b
runway visual marker
seasat (sea satellite)
self-propelled ditch digger
slag test
softball field
sputter pump
star-t
submicrostructure
symptomatic pruritus
taper-tread wheel
terminal pericarditis
tetrahydropimaric acid
the first order moment compensator
thick film circuit
throttle type rotor
Tirolese
twin-rudder
wap identification module
wealth creation
Willaumez Pen.
Williamsport
Windsor bean
Xenalamine
yao ts'u pu