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
acne medicamentosa
adenosine 3',5'-cyclic phosphate
Ahya
aldocortin
alpha cruces
analytical function
armature body
baptizin'
Bath stone, bath stone
belarusians
Brevistin
camarda
cambalache
candled ice
cebrionine
chate
chicago-area
chime chine
circuit changer
cold-start test
come within range
commercial potential
court roll
cupula cristae ampullaris
Cycladol
data base practitioner
dial lock
disk spindle
donage
ectomorphic
electric corrosion
esuprone
expedient behavior
Festuca elata
final injunctions
fish bank
fringe magnetic field
garmouths
gene chips
Guevara
Halmstad
hop gardens
hot chamber plunger die casting machine
in-ex
in-written
indexible
iodochlorhydroxyquins
knife colter
kwast
legal tare
linthicum
load water plane
lumber freeboard mark of fresh water
magneto gear spring
Mail Exchange Record
make a pile
make great strides
mean lower low water springs
metal to-metal contact
metatheatrical
monetary policy tools
nabsw
neural circuit
Newtown St Boswells
non-standardized
pars anterior rhinencephali
pipe pilot
plowing unit
Pomeranchuk theorem
propagandizes
rail-mounted
rate accelerating material
reamed hole
red earth
retractor analis muscle
rheumato-
Rickettsia lectularia
rosaceous
salaam spasm
second finial generation
self - centring chuck
self love
semicircular column
sepanatedexciting
ship formation movement
silicon bidirection switch
sitting pass
small arms fire
sodium pentachlorophenolate
soft image
street floor
telemetric data receiving-recording-scoring set
Tetrameprozine
thermomechanically
tigloylgomisin
times-news
transferring enzyme
tumble bay
uniform simple shear
ureteric bud
ximengite
zacate