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
alava
alphenic
androgynously
Android app
ankle-heights
annual energy output
Arabian camel
asynaptic gene
Baindt
Baladang
barmbracks
bijoux
Blackburnian warbler
bumleaf
cambridge-platonists
carcinogenic character
ceramic coated cutting tool
cholesteremia
chromophile
coal cracker
colorimetric gas analyzer
constablewicks
Cooperiapectinata
coppins
counterdrain
dendrophile
dhc
double sideband amplitude modulation (dsb-am)
dual-recording
duchess potatoes
eggplant bush
electro-depositions
external door
file viruses
fully briefed
Girgenti
goatskin
Guasimal
Hamarinn
hudek
hypertrophy ex vacuo
instant-on switch
interpledges
intrageniculate
jacks-by-the-hedge
join operation
kakkalide
knife edge felt wheel
lacinarastra
lifting efficiency
love in
methyl acetyl carbinol
multieffect evaporator
nested grid model (ngm)
olenitis
omni-directional propulsion unit
Oubala
parallel staff
paralytick
patroclinal ingeritance
payment by banker
paynters
pelvic compression and separation test
pencil-pusher
pengoes
Perrottetia
photological
pilot card
pouring system
proliferation of funds
propenylene
Propylamino
Raceanisodamine
Ragnarok
reciprocal knitting
regular working hour
Republic of France Navy
ribbonsaw
rigid wire
root rubber
rotational moment of steering gear
safe-keeping fee
scoring systems
SECAM colour system
sequence reactance
short-range radiation effects
single spark structure
skin-tone
spares symmetric system
split slab
stress decay
strip-on-edge winding machine
subtransmission system
superfetates
transform methods
Tunica mucosa oris
ungarbled
volutella ciliata
Werfel
white powder
with devotion
yeares