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
a-von
acetimetric
Acinetobacter
acute corrosive esophagitis
adjuvant material
after-length
Allium hymenorhizum
amorphisation
ara bacalle
Aspaxa
birthdaycard
blocking-out
breathily
bulkhead step
cell cavity
chambrette car
cheque kiting
chilidogs
chinagraphs
core shell
crystalling fracture
Davydiv
DCST
define against
deratization
dimethylpropyl
disk transfer time
disomus
dynamogenetic value
ensnarers
exoribonucleases
field retrace
flashing discharging tube
furnished apartment
gastroserica marginalis puncticollis
gloeospore
grister
h-o-t
half orphans
hemipyxis yuae
high-order logic
hold tight onto oneself
ichneumia
internal tapping
issuance of licenses
kiral
lacZ
let ... ride
linear unseparable function
long period moving averages
loris-melikov
mcgegan
meteorological communication center
mini-essay
mixolimnions
mycocerosic acid
nanocylinder
Nattam
neuroblasts
Northwye
null sequence reactance
offstage
paddle-engine
parking place
periovulation
pilot control pump
poinsettia
postgastrectomy
precedence constraint
productive labor
Pseudocydonia sinensis
Qamīnis
reactor grade
restoration of diplomatic relations
roller tool
Sagone, G.de
section moculus
shit tickets
shore ice
sillago parvisquamis
silly straws
sinus venosus defect
slow mode constrained initialization
specialty of pharyngolaryngology
sports editors
sprunt up
St. Christopher
standard ionization chamber
straminellus
Szombathy's fixative
tailback
Tainia emeiensis
taxpaid
testificates
thermal EMF stability
topisolon
tropospheric scattering
tuffnel
unexpect
video output buffer
wire-line bit
wruhen