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
abdominal rib
akhunds
Alfioosa
arme
auger line
autoserum therapy
auxiliary matrix
be not up to much
beaded lacewing
Bilocide
bottle necks
carbon and hydrogen analysis meter
characteristic of atmospheric transmission
chemiluminescent detector
choanosome
closed wrench
crown of furnace
crushed brick
culdoscpoe
cushion kiln
Dacrycarpites
dead-point
deliciouss
desolute
dispairs
distribution of rainfall throughout the year
eleanor gwynns
engine bay
engine bonnet
entry spin
four-cycler
friction cleaner
gastroboletus scabrosuss
Giant's Causeway
Gracias a Dios, C.
graphiure
Grenzers
Halemboi
hamsterlike
Hedyotis pinifolia
high electron mobility transistor
high-temperature thermometer
histidine deaminase
Huttonsville
initial strain
inner slot width
intarsia
inventrix
investigatory apparatus
iodophilic
kenn
latermore
lattice correspondence
Lawr.
limiting grade
low-abundance isotope
low-power gears
mag-drive
malfeasor
Marbridge
mazzel tov
medical rational beauty
metabonomics
moment of stability
muddy pk.
nice and cool
Nicholson L.
on reflection
order-taker
orizite (epistilbite)
pantetheine
photocathode resistance
porcelain triangle
pre-enforcement
rebuff
salient
sanatorium treatment
scaldweed
self-repair system
shilingi
sine potentiometer
single-bands
singular integral
six thousand
stack addressing
state structure
suburethral
syncholia
tenant in feesimple
to clock in at
transilluminated
tsampoy
Tuber frontale
tzaristic
urs-
Ust'-Chara
Waterloos
whittle down
X-ray astronomer
yellow turnip
yonah
Yūtō