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
2-amino-5-chloro-4-methyl-benzenesulfonic acid
Ablayevo
agonious
al-ittihad
alpha-d-galactosidase
alternating quadratic form
ambulones
anti-rock
antibias
antipoliss
apatheism
aspherical cylinder lenses
basis brass
blade contact
bondaged
Calsmin
capron
charter-land
Ciumeghiu
contribution margin in profitability
Courvoisier's law
cryptagglutinoid
Czechize
detergent gas
direct indirect heating
domain functional device
dry grinder
egistment
Elmhurst
emotional urticaria
Erysimum officinale
extraparliamentary
family Adiantaceae
favor sb with sth
FDE
fille
fixed carbon
flexion deformity of knee
folding stair
fortay
frost-itch
Fréteval
gaesser
general transfer
ground-beef
gum olibanums
height of portal clearance
hot-strip instrument
hydragoga
hydraulic torque converter driving wheel
hydrodynamic resistance
hypoxemias
innominate contract
intake shutter
jot sth down
keep watch and ward over
leinsdorf
limbo rock
local-storage
maximum grinding travel
miner's cat
nitrazine
noui
NUWC
obaye
oil galley
overdusted
peeing
phlebotomist
primary input table
processing sheet
Psicosoma
pulse duct
quinoneimine dye
reality-testing
rebekahs
reference, memory
reheat effect
restel
rogitine
rumor campaign
sand defects
side sealing
slanting collision
squeeze preparation
static leonard system
supercompression
superformula
sweet elders
t'wa
three-level record
three-numbered ring
tin(ii) hydroxide
tintinnopsis brevicollis
to have a great time
tonic convulsion
tripinnately compound leaf
trustible
twine retainer
unchangeably
upper bracket
visually oriented