时间:2019-01-17 作者:英语课 分类:英语PK台


英语课

   第二部分:序数词


  序数词是数词的一种,表示为“第几”。
  1. 举例
  第1:first 1st
  第2:second 2nd
  第3:third 3rd
  第4:fourth 1 4th
  第5:fifth 2 5th
  第6:sixth 6th
  第7:seventh 7th
  第8:eighth 8th
  第9:ninth 9th
  第10:tenth 10th
  第11:eleventh 11th
  第12:twelfth 12th
  第13:thirteenth 13th
  第14:fourteenth 14th
  第15:fifteenth 15th
  第16:sixteenth 16th
  第17:seventeenth 17th
  第18:eighteenth 18th
  第19:nineteenth 19th
  第20:twentieth 3 20th
  第21:twenty-first 21st
  第22:twenty-second 22nd
  第23:twenty-third 23rd
  第24:twenty-fourth 24th
  第100:one hundredth 100th
  第一百二十一:one hundred and twenty-first
  第一千三百二十:one thousand three hundred and twentieth
  第二百五十二:two hundred and fifty-second
  2. 缩写
  first——1st
  second——2nd
  third——3rd
  fourth——4th
  sixth——6th
  twentieth——20th
  twenty-third——23rd
  其中1st,2nd,3rd为特殊形式,其他的都是阿拉伯数字后加th。
  3. 句法功能
  序数词在句中可作主语、宾语、定语和表语。
  The second is what I really need.
  第二个是我真正需要的。(作主语)
  He chooses the second.
  他挑选了第二个。(作宾语)
  We are to carry out the first plan 4.
  我们将执行第一个计划。(作定语)
  She is the second in our class.
  在我们班她是第二名。(作表语)
  注:序数词在使用时,通常前面要加定冠词the;但是如果序数词前出现不定冠词a或an时,则表示“再......”,“又......”。
  We'll go over it a second time.
  我们再念第二遍。
  We've tried it three times. Must we try it a fourth time?
  我们已经试过三遍了,还必须再试一次(第四次)吗?
  4. 用法举例
  506房:Room 506
  第二中学:No. 2 Middle School
  第五课:lesson 5
  第123页:Page 123
  7路公共汽车:Bus No.7
  5. 不用the的情况
  在英语中,使用序数词时前面要加定冠词 the,但是,在下面的情况下则不加 the:
  (1) 当序数词前有形容词性物主代词或名词所有格修饰时,序数词前不用 the。
  Mother was 5 my first teacher in my life 6.
  妈妈是我生命中的第一个老师。
  (2) 当表达分数时,序数词前不用 the。
  One fifth of the students here are from the country.
  这儿1/5的学生来自农村。
  Three fourths 7 of the students here are from the country.
  这儿的3/4的学生来自农村。
  (3) 当表达“又一,再一”时,序数词前不用 the,但可加不定冠词。
  Please give me a second chance 8.
  请再给我一次机会。
  The poor woman had 9 a third baby.
  那个可怜的妇女又生了第三个宝宝。
  (4) 当表达“年月日”时,序数词前不用the。
  He was born 10 on June 6th, 1974.
  他出生在1974年6月6日。
  (5) 当序数词在句中作状语时,序数词前不用 the。
  Who got 11 there second?
  谁第二个到那儿的?
  I finished 12 the work first.
  我最先完成那项工作。
  (6) 当表达考试(赛跑等)中获得的名次时,序数词前不用 the。
  She stands first in her class.
  她在班上成绩排名第一。

n.四分之一;num.第四
  • The fourth lesson is science.第四节是科学课。
  • The Fourth of July is the national holiday of the US.七月四日是美国国庆日。
num.第五;n.五分之一
  • It's the fifth door on the right.右边第五个门。
  • I like to sit in about the fifth row.我想坐在第五排左右。
n.二十分之一;num./adj.第二十
  • Tomorrow is her twentieth birthday.明天是她二十岁生日。
  • He is the twentieth on the list.在名单上他是第二十个。
n.计划,策略,方法;v.计划,设计,意欲
  • What do you plan to do during the holidays?你打算在假期里做什么?
  • I talked with him about our plan,and he wanted in.我同他谈了我们的计划,他想参加。
v.(is,am的过去式)是,在
  • He said he was right.他说他是正确的。
  • He was cold and hungry.他又冷又饿。
n.生活;生命
  • The doctor came in time to save his life.医生及时来抢救他的生命。
  • At last he knew the meaning of life.终于,他知道了生命的意义。
n.第四( fourth的名词复数 )
  • The ranch castrated three-fourths of its male calves. 牧场把四分之三的小公牛都阉割了。 来自《简明英汉词典》
  • Three-fourths of the public say they favor a national referendum on the issue. 四分之三的公众表示希望就这个问题进行全民公决。 来自辞典例句
n.机会,意外;运气;风险;vi.偶然发生;vt.偶然发生,冒险
  • We will take a chance to have the party outdoor.我们将冒险举行露天聚会。
  • This is the last chance any of us has.对于我们中的任何人来说,这是最后的一次机会。
vbl.have的过去式和过去分词;conj.有
  • I just had a good idea!我有个好主意!
  • The boy had a small branch of a tree in his hand.这个男孩手上拿一条小树枝。
v.动词bear的过去分词;adj.出生的,与生俱来的
  • The baby can cry as soon as he is born.婴儿生下来就会哭。
  • I feel as if I had been born again.我有一种再生之感。
v.(get的过去式)得到,猜到,明白
  • I just got some bad news.我刚得到一些坏消息。
  • I have got far too much work to do.我要做的事太多了。
adj.完成的,精湛的;v.动词finish的过去式和过去分词
  • We finished up everything there was on the table. 我们把桌上的东西全吃完了。
  • We can certainly have the job finished on time.我们肯定能按时完成任务。
标签: 英语PK台
学英语单词
accuracy requirement
aestus volaticus
aiya
amifampridine
anthracene nucleus
aroom
athermaney
audit recorder function
autistic
automatic continuous blowdown
Baer'slaw
bichloride
bionic man
boat sling
boiler flexibility
broker participant
burning rubber
byte-addressable computer
car kilometers
carriage saddle
checked and adjusted capacity
chimney deposit
Clanis bilineata
consolidated quick shearing resistance
cooperation mode
Daoura, Oued
data bank/base
dense core
dissociating
early-october
error of method
erythematopultaceous
excellent time
fixed frequency filter
fulfilments
gamete (sperm/ovum)
geothelphusa olea
glamazons
global value
graphic interpolation
hand sketch
heart-shaped thimble
high performance data space
high-temperature test for core
hydraulic pipe line dredge
id command
incriminatingly
inefficaciously
infra-trochlea nerve
intensated
interface reaction constant
job system
kilroots
Lyphozyme
mother naked
near midair collision
nonvegetated
nux vomica tincture
oculogravic(optogravic)illusion
One Fathom Bank
operate time of protection
ottoman-era
oxygen vapor pressure thermometer
parazona
peripheral-face milling
photogenesis
plastic shading
polymethyldithiocyanatoarsine
polyubiquitinates
pricing anomaly
pump redundancy
purification index
reboiler
Rio Grande do Sul, Estado do
roller conveyer table
rosenquist
rosier
secondary iris cell
Sibelius Seamount
sleep-phase
slihgt shower of rain
smooth winterberry holly
snorkel
splicing complex
statement of expenses
stauros
thread error
three-in-one brake valve
toastcrumbs
trachelology
trench mouth
true airspeed calculator
vacuumimpregnation
Vu Quang
waggonful
wave rider
why-it
wind driven electricity generator
woodvale
yearly average outage hours
yeere
Zener-diode