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
above-the-fray
acceptedly
acosmeryx naga naga
aialostenosis
alternative collating sequence
Aridye pigment padding
arrhenic
articulus
at the very least
automatic current stimulator
beam-slab raft foundation
bencini
besee
bogdanovich
boglands
bulk compression
butkevicius
byatts
Cardizem-SR
common application
compensator starter
corrugating medium
creepss
cylindrical hologram
cylindrical-worm
daily settlement price
Dantan
depth of fusion
determination of absorption ratio
discontinuities defect in welds
dissecans pneumonia
draw a crowd
electro optical distance measurement (eodm)
electrocardiocorder
eliminate the negative
eniwanren-ason
extrinsicalness
fully-ionized gas
global coordinate system
gray podzolic (wooded) soil
grouped pass
hardness of x-ray
hoctonspheres
Huanglong Tang
huckaback weave
inevitable accident
ingrain colour
instructionals
items on the agenda
Jack of straw
Kiaman interval
kytlyn
Lady Chatterley
learn sth by heart
light spectrometer
linsays
make arrangements with someone
mards
maryalice
minnion
Moldovanness
multiple stethoscope
multiple-course construction
natural feeding
no reference
nycterimyia kerteszi
one-dimensional defect
parameter error
perambulator
period of apparent manifestation
Petahs
plastic house culture
principle of value
pulse interval modulation
QHDA
quinine valerate
Rachmaninoffian
real-time data server
red and black vertical stripes buoy
repeater optical transit
resolution disk
retrieval of enriched textual abstract (reta)
scamp work and stint material
scritch-scratch
scythopoliss
sensitometry
side show
solid scintillation detector
spot sampling
subroge
threshold kinetic energy
time-to-depth conversion
tubular sprue cutter
Tugarinovia mongolica
unactionable
unheretical
urine pregnancy test
us -ite
Waqr
Yogan, Cerro
ytp
zaharoffs