时间:2019-01-08 作者:英语课 分类:大学四六级阅读


英语课

   冠词分不定冠词(indefinite article)和定冠词(definite article)两种,一般无句子重音。


  1)不定冠词a,an
  a) a和an均用在单数名词之前,表示某一类人或事物中的"一个",相当于汉语的"一",但不强调数目观念。
  b) a用在辅音之前,an用在元音之前。如:a notebook一个笔记本,a cigarette一支香烟,an old man一位老人,an English class一堂英语课。
  字母u读作[ju:]时,由于第一个音[j]是辅音,故前面用a,不用an。如:a useful book一本有用的书,a university一所大学。字母h如不发音,第一个音又是元音,前面用an而不用a,如an hour [?n’au?]一小时,an honest [?n’ nist] person一个诚实的人。
  c) a和an在句中分别弱读作[E]和[En]。
  2)定冠词the
  a)表示某一类人或事物中的"某一个"或"某一些",相当于汉语的"这"或"那"。
  b)不论单数名词或复数名词,也不论可数名词或不可数名词,前面都可以用the。
  c)在元音前读[Ti],辅音前读[TE]。如the evening [Ti5:vniN] (傍晚),the car [TEkB:] (汽车);在元音字母u发[ju:]和半元音字母。y发[j]时,仍读[?TE]。如the unit [TE5ju:nit] (单位),the yard [TEjB:d] (院子)。
  英语中不定冠词a (an)的用法
  1)指一个人、动物或一件事物属于某一类。如:
  Xiao Xu’s father is a miner.小徐的父亲是矿工。(而不是其他工种)
  Give me a ballpen , please.请给我一支圆珠笔。(而不是钢笔或其他种类)
  2)指任何一个人、动物或一件事物。如:
  A steel worker makes steel.钢铁工人炼钢。(意即任何一个钢铁工人都炼钢)
  A triangle has three angles.三角形有三个角。(意即任何一个三角形都有三个角)
  3)指某人或某物,但不具体说明何人或何物。如:
  He comes from a firm in Beijing.他来自北京某一家公司。
  A young man wants to see you.有个青年人要见你。
  A car stopped in front of the gate.一辆汽车停在大门前。
  4)不定冠词还可指"事物的单位",如"每日"、"每斤"等。如:
  Butter is 4 yuan a kilo.黄油四元钱一公斤。
  He drove the car at 18 miles an hour.他行车速度为每小时十八英里。
  The Chinese Export Commodities 1 Fair is held in Guangzhou twice a year.中国出口商品交易会每年在广州举行两次。
  The doctor told him to take the medicine three times a day. 医生叫他一天吃三次药。

商品( commodity的名词复数 ); 农产品; 有价值的物品; 有用的东西
  • rice, flour and other basic commodities 稻米、面粉和其他基本商品
  • The manufacturers in some countries dumped their surplus commodities abroad. 一些国家的制造商向国外倾销过剩产品。
标签: 英语四级
学英语单词
Aeschynanthus superbus
agua fresca
airfreight
Alfonsine Tables
anterior cerebral arteries
antrostomies
Apozai
at the first push
avelino
be at an advantage
behavior of rivers
Bol'shoy Atalyk, Gora
bulk room
Calder, Alexander
capacitive thin-film sensor
Cape diamond
Church of Christ
co-lessee
coarse-group cross section
coicoyan de las flores
commodities
control word address
corticotropin-like intermediate lobe peptide (clip)
declared speed
declutch shift shaft
divergent marketing
DO range
down-regulating
dustlikest
edsel
explosive trace detection
F-VEP
fat covering
fix the cards against someone
foreset beds
fractional integral
Fraxinus paxiana
frequecny lock
gallium-base alloy
gansevoort
genus lagarostrobuss
genus myricas
goat breeding
green fluorescent protein
heliometers
her majesty warship
heteromastigote
high pressure pneumatic sensor
host supervisor
hulster
human microphone
iii.a
in all senses
inductive train radio communication
James Bulger
K-Ar age
Klyuchevskoye
kochmara
lanceys
lobster-claw deformity
low actual
m. aryepiglotticus
map of Tasmania
marine reclamation land
Meconopsis speciosa
metasanidine
moment of inertia of gyro rotor
nonhomogeneous equation
normal roll pressure
nuclear stalemate
optional hyphen
pentacyclic triterpane
peradventure
periantral
phragmacones
piperonylic acid
platinum-level
polyversity
potentioneter
pre-processing of plate-fin elements
prolongation of a bill
protective fence
radiancies
saint francois
Sakassou, Dép.de
sawdered
schollkopf's acid
sormanti
Spanish North Africa
spectator catch
Stanton's disease
steam engine plough
stress yield
subscriptions received in advance
successive reaction
swoop
terminal airport
third-strike
tore down
un-liberated
vomic-nut
youth hostels