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
7-methoxybaicalein
agvs
Ampoa
anyones
Barraquer-Simons syndrome
baubella
BCATm
bisaminophenoxyethane
bonus tax
branching reaction
break of slope
burns-in
cellular striation
chemical stress relaxation
Clark's operation
clear the table
combustion period
compensation factor of a compensated ionization chamber
consiglieres
Dandy syndrome
Daphne laciniata
dipodomys merriamic
distributed minicomputer network
dolorosa paraplegia
dressing of steel ingots
drywell hatch cover
euproctis unifascia
excystment
fat-free diet
fluorodensitometry
foot-cloth
form matter
four part alloy
generalization
gun-slinging
hay rack
hemobilirubin
high cost factor
High Frontier Study
host language (in database)
Hubble, Edwin Powell
immomentous
in respect to
initial free volume
intratemporal
islanders
kosher sausage
laminated joint
lead based bearing alloy
leucomainemia
levant moroccoes
man-hunters
maxwell material
mersea
MMP (motor-mount pump)
MOCVD
moscow' oslo
motoroperated
multiplicative reproduction
myotenosetis
nature of work
nidated
NSC-296934
Nussbaum's experiment
oberkirches
off-line data reduction
one-way bus
orimarga (orimarga) taiwanensis
orthoscopic system
otologic
Ouareau, L.
oxy-bird
packaging quality
pain-relievers
parrell
photo interpretation in agriculture
rental income of persons
rossbaches
rotundifolone
rou
run of luck
schistorrhachis
sensationalizer
sexual progeny
smiths cold set
sphalerocarpium
star program
starting air
statemongers
stucco fluidized bed
Suwanose-suidō
sweet cassava
target video
tax liabilities
thermosonic bonding
unclubable
upon my conscience
Uruguai(Uruguay), R.
venae intercostales posteriores
Vichy France
whisperin'