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
acceptable product
alligator grasses
anadimonia latigasciata
anisotropic exchange interaction
antrustions
asteatosis cutis
Atari
ayacut
B flat
bacliff
be a sucker for
birthcoat
centrifugal collector
charolette
Clement Attlee
commemorative architecture
comunales
conn-selmer
copy service
counter tympanic membrane
dinas powys
discursative
disosquinone
Egbunda
Eight Masters of Nanjing
end-diastolic pressure
etched circuit board
false chanterelle
firm-jawed
formosan masked civet
function module
gaetanus brevicornis
genus falcatifoliums
gingivitis scorbutic
gravisphere
grindelwalds
hapus
hemopiesic diuretic
hopper chute washout drum
Imazaquin
instantaneous power spectrum density
ion-ion recombination
kerzinite
licensee estopple
lining cracking
logarithmic time scale
logic line group
mail transport
maksud
mino-aleviatin
Montenay
multiple-pin-hole camera
natural ventilation pressure
Ndugu
non-candidacy
nonminority
nudie pic
obstructively
outreasons
parallel stays
partisis
planning game
platydoras
pleurivalve
portable riveting forge
posthouse
postriders
preimpregnation
rectopexies
relative wall thickness
retamine
Rhodocapsa
Rilkean
roller bumper
roman feuilleton
sand recycle system
segrin
semicoke
simplex pneumothorax
softshell clam
solid-state circuit technique
spiegls
star hand wheel
starboard inboard
steam-gas cavity
strike from the list
Stromateoidei
subdivision length
swiss danning
São Matias
take a class of
tergal valves
traffic classification
tranquiler
tsutsugamushi disease
vegfr
vertical zoning of water system
wennington
wire works
WO,W.O
wyis
zeomorph