时间:2018-12-03 作者:英语课 分类:英语听力小技巧


英语课

   12  不定冠词 a 的使用


  cn.(countable nouns) VS un (uncountable nouns)
  名词前用不定冠词,或定冠词,或都不用。一般而言,只有一个正确答案。A 用与不用,意思完全发生变化
  Eg.
  She has long hair.(un.)
  There is a hair in my soup.(cn)
  I like a dog.喜欢吃狗肉。
  I like dogs.喜欢狗
  I ate 1 a hamburger 我吃了一个汉堡 (cn.)
  I ate hamburger 我吃了碎牛肉-(un. hamburger(Am.E) un.相当于mince(Br.E))
  I ate a cake.吃了一整个饼。
  I ate cake. 吃了些(一部分)饼
  注意:如果名词前面有a时后面是接了可数词,表整体。如果前面没有a ,后面是接不可数词。
  所以要注意,根据具体情况使用不定冠词

1 ate
v.吃,eat的过去式
  • I ate a whole box of chocolates.我吃了一整盒巧克力。
  • It's a long time since she ate out last time.她很长一段时间没在外面吃饭了。
学英语单词
air dox
Alcotest
anscombe test for heteroskedasticity
aqueous vapo(u)r
arithmetic overflow
atmospheric operation
Black-Crested
bobblehead
boronian
bride-bed
broad churches
broadenest
bruskly
Cape ruby
Changlun
circular polariscope
commixtion and unidentifiable cargo
completely defective product
computing statement
condensatus
conducting tissue(vasculer tissue)
Cowpasture R.
crystalline rupture
depth-first minimax
diall
difference equation
dittography
diverse ion effect
dohmes
dorkhead
dremel
dual ramp ADC
elastic hysteresis
electric vice
electrocutaneous feedback
entrance notice
facial colliculus
follow spot
fukujusonorone
gemmiform
Gentiana hirsuta
give a warm
Hai Thuong
heads of a charge
hemopoiesis'
herakleia
how is everything
ice flower
ignition (ign)
instructional trips
internal squint
inverse quaternion
Kappel Wars
kebocephaly
Knop's solution
Latin American free trade market
lionstone
lisonek
look on the bright side of things
Lower Mars
macao sar
maezous formosana
manual operator
Mastoplasy
mcclenny
melatonalite
monochromatic wave
multi-physical media
murdery
non-cash acquisition of subsidiary
nosepiece
nucleofection
overthrow
paragraph separator
pea trees
Petit Martinique I.
pickthank
platinum resist
polyachene
quadlet
Rashid
Scutellaria franchetiana
sea trade
seepage prevention of sluice foundation
shareholders' voting rights
Shchuch'ye, Ozero
short interspersed element
single column vertical boring machine
sperm displacement mechanism
stationary construction
steady rotation
stress reaction
sublevaminous
synthetic plastics
Takahara's disease
tapped me
teletypewriter automatic dispatch system
type qualification
uncapped
undecked vessel
unfinned