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
activizes
add up
alissonotum pauper
allowance for amortization
alto stratus castellatus
american maidenhair ferns
anterior half-sclerotome (or cranial half-sclerotome)
Arundel
autonomous regulations
balteum venereum
baseline drift
beduin
behinded
belt feed lever
black tellurium
blackberry bushes
blackbody radiometer
body therapy
boiler bearer
bowel control
brer
bull tongue shovel
but few
calibrating procedure
card-sharps
circle of vegetation
circuit switching center
classical Yang-Baxter equation
Comesomatidae
completion of representation
condenser component
counter-gambit
countify
cunit
daisybushes
direct style
disjoining pressure
ectosphere
elata
elevation adjustment
f.b.i.m.
face gear
febrific
fortunella margaritas
frequency distortion
future performance liabilities
general gas law
genus Conospermum
gestation crates
give someone their due
growth fraction
harrod-neutral (growth)
Iffeldorf
in compensation for
incremental sensitivity
infectious pododermatitis
latrodectus
lavande
long case clock
low temperature area
low-cost credit
lymphadenoid goiter
machine radiation source
magnetopause
marthona
maunouries
mean interdiurnal variability
metal nitride silicon device
metropolitan function
numerical list of commodities
o-os
on a scale of
order control system
phytum
player pianos
polhills
Poschiavo
pregnancy-test
restropin
resummons
retroperistaltic
ross's syndrome
sleepahs
spark plug insert
SRS (simulated remote station)
stopvalves
storage theory
strobe signal
super drawing
supine posture
telmateium
territs
tetragonal base
tone poem
tormes
trancecore
triphosphine
twonking
Ulmus laevis
untidiest
untrueful
world wide treaty