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
abashance
achroia
across the board reduction
acrylic primer
active record code
alienatedly
allism
ammonium palladous chloride
amplitude distribution analysis
angle of scattering
anti-hydrogen embrittlement superalloy
Antoine Jean
armenian languages
arsenfahlerz
AUEW
authenticated calibration
banana-cream
bellcore
binderless birquetting
birds of one wing
blister packs
boglime
brake shoe toe
breeder pile
brokering
bruntland
changu
chrome plate
community of learners
cranking battery
crystal-tetrode mixer
dahlan
defrange
degenerate mapping
die bed
differential chemical teactor
dwales
engaging-in
Erzurum
f.x
fibre metal
flash film evaporation
foreshower
full liability
gangrenous chicken-pox
germany internet providers
hardanger cloth
Henrico County
herdthink
hero worshipping
hexasomic
homographic function
imidazolemethanol
imjin
inside corner
insulating press board
intelligent material
isoviolanthrene
jerre
killing area
lickin
limonia (melanolimonia) nifrithorax
NewY
Paeonia mairei
par yields
peasant top
petition for divorce
phenol glycerin
Philomachus pugnax
pilea peploides peploides
plunging the telescope
population biologist
portrayable
Prevalite
processing options
radio beam
repairable item
rhetorized
safety injection process
Scott, Paul
self-responsibilities
session-by-session
shoveller
sink refuse
slivers
specific interrogation
station pole
Stock Exchange Alternative Trading System
substantia reticularis alba
syringeal muscle
takeoff safety speed
the tale of genji
time-oriented sequential control
tosunder
type 1 batch
ultimate load
Varicosavirus
wagonmaking
want curve
water-bearing stratum
woman of pleasure
yakobis