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
aerogastria
agricultural plan
Ahlfeld's sign
ammonia turbocompressor
anterior chamber of eyeball
arsenikstein (arsenopyrite)
as black as thunder
as fit as a flea
atomic hypothesis
bad copy
bobble-head
bulwark port
cape of
carboxyh(a)emoglobin
chi-square criterion
concional
Coulaures
crammed stripe
crosspollinated
customer loyalty
dinner cruise
draining and flooding tank
empirical factor
employee production performances
erwinia milletiae (kawakami et yoshida) magrou
etherialization
exoscopic development
fleker
fluorine(-containing)rubber
ganglioneurofibroma
gravity refuelling
grimm's
handkerchief dance
Hassberge
heavily-used
Hebridian
hedgeapple
heidornite
hemispherium cerebelli
Heracleum vicinum
hydraulic grain shovel carrier
ihta
imagetool
impersonalising
jet hopper
joint rotation
jumart
kinetic isotope effect
laryngeal vestibule
leixlips
limited aftereffect
longitudinal quadrupole
low-value capacitor
Mahometical
Market Psychology
methane burning equipment
methylpropiothetin
milliw
minimum redundance
NEGROMANIA
news standard
opener draw rod
OPTASKLINK
osteochondrosis
out-of-nowhere
paranet
pathogenic dryness-heat
periodic process
pick a pocket
pleasure trip
pleiomery
poinsett
preliminary balance
Prilenskoye Plato
pulsatile headache
pump bowl flange
relative activity of solute B
RNases
rosilic acid
roughness of engine
shubunkins
slag nodule
slow lander
spectral average
spiceberry
splash pages
split tire locking ring
spread betting
static fluid loss test
sugarhouses
Swertia dichotoma
symbolic pointer
systemwide
technology integration
tender yin
to wolf down
total deadlock
venae intercostales
woolskins
world economics
Zhelezinka
zories