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
-bosomed
absolute rating
after construction
agreement on licensing
agro-industrialize
Altillac
amphinomid
antithiamin(e)
arromohin
Artemis pontica
assidious
be laced with
biostitute
bitumen anticorrosive paint
bonus tolerance
brimmingly
buying out
cantalever
cardiohepatid toxin
caryatide
cephalometric method
checkerist
chiao t'ien y?eh wu
chrome green glass
cold sperm
compulsory inscribing
contract conditions
convergeth
conynger
creeprail
diaphragm manometer
discharge from slop tank
dityrin
EAC-ROSETTE
electric microbalance
emergency warning
emulsion stack
error-measuring device
Eubacteriineae
eximiously
extravagant price
feliz
fibrin(o)-
headrick
in deed as well as in name
in deep
installment buying
Isogamet
jointed leg
Kleine Sluis
leakily
light crude pyridine
locality factor
low-birth-weight infants
main centre floor panel
makyere
mercury atoxylate
messed with
Miłomłyn
negative cross-resistance
nkc
octagonal
on high alert
order to pay
ordinary temperature
ovoideus
phase, three
picowebers
platinum-nickel alloy
potential biota
progonadotrophic
proxicon
pseudoreduced
Quinze de Novembro
rectifiablework piece
sameridine
shiplap
siberia
sixgills
sixty nining
squirocracy
Staurogyne longicuneata
suppressants
surface dump
swithed repetitively-pulsed laser
TR-test
trollish
truno
Tunica mucosa nasi
unclaimed balance
underlying unconformity
underplated
undistasted
uniprogramming interactive system
unmanned excavator
unshaped refractory
updraught producer
vibists
wire breakage lock
wordchar
zinnia grandiflora nutt.
zofia