时间:2019-01-16 作者:英语课 分类:英文语法词汇


英语课

   可数名词分为单数和复数。


  名词单数就是该词本身,在其前面加a或an。
  1、单数
  如a desk(一张桌子)
  an old desk(一张旧书桌)
  2、复数:要表示一个以上概念时,要用名词复数形式
  规则变化
  1)一般情况下加-s
  如book--books(书) desk--desks(书桌)
  2)以s ,x 1 ,ch , sh结尾加-es
  如box--boxes(盒子) bus--buses(公共汽车)
  注意①以 th 结尾加-s, month--months
  ②stomach--stomachs
  3、以辅音字母+结尾,变y为i再加- es。
  如city--cities(城市) country--countries(国家)
  注意以元音+y,直接加s。如:day--days(天),boy--boys(男孩)
  4、以f或fe结尾,复数变f或 fe 为v再加-es
  如knife-knives(书) , half-halves(一半)
  (thief ,wife ,life ,shelf ,knife ,leaf ,self ,half ,wolf)
  注意①有少数词后直接加s,如roof-roofs (屋顶)
  5、以o结尾
  (1)辅音字母加o结尾名词的加-es
  如tomato-tomatoes(西红杮)
  potato-potatoes(土豆)
  (2) 元音字母加o结尾名词的加-s
  如piano-pianos (钢琴), zoo-zoos(动物园)
  photo-photos (照片), kangaroo-kangaroos(袋鼠)
  kilo-kilos(千克)
  注意zero 两种方式都可:zero-zeros或 zeroes(零)

n.字母x,罗马数字10adj.X形的,X级的(电影等),第二十四的
  • The possible permutations of x, y and z are xyz, xzy, yxz, yzx, zxy and zyx. x、y和z的可能的组合方式为xyz、xzy、yxz、yzx、zxy和zyx。
  • The chest X-rays showed moderate enlargement of the heart. 胸部X光片显示出心脏稍有扩大。 来自《简明英汉词典》
标签: 可数名词
学英语单词
activate access
acute discharge
ADSCs
alternative accounting method
Altretaminum
ammetre
annual working program
antinitrogen
as a setting
automatic shorebased acceptance checkout equipment
Beko
Berëzovskaya
bit-oriented protocol
blacksmith's shop
Bomb.
brasserie
Burnet's axiom
cerebropathia
coastal-gunfirecontrol radar
conispiral
Cook Canyon
copying error
crop microclimate
ctia
cunniff
decision-directed learning
depth multiplexing
ectopia of urinary bladder
elasmosaur
entrance knob
euaspa tayal
exact sequences
forgivance
generalized circles
get the whip hand of someone
Hadol
harmonic balancer
head grouting
high-clearance liquid nitrogen applicator
histoire
hla-dr4
howlet
input data error
internal expansion
ionic theory
jenkinses
kocherization
leader and timing tape
Madanhāti
make a matter
management of risk
marproof
master level control
mcnaught
mixed rearing infection
monochromating crystal
morningglory
motors
mud factor movement
multiple on course signal
musculi depressor anguli oris
needs-baseds
non-adapted nozzle
nonmortgaged
nrp
p-phenolsulfonic acid
pass'd
patrilaterally
patrol telephone
Peking white pear
perfect square
perley
phlegmatizes
phloxine
pipettors
pro-circer
psychical fallacy
Purnia(Purnea)
R-S nomenclature
real-time display system
recurrent
regaining
ribonucleotide reductase
ridged profile
ringness
root system branches
RPPR
sagiv
signal spectacle
slinketh
straining vice
stretch one's wings
sure as hell
syll.
Trademark Registration Treaty
two crystal spectrum
two-lined chestnut borer
unliquidated damages
ventral tank
whited out
Yellowstone Lake