时间:2019-02-13 作者:英语课 分类:英文语法词汇


英语课

 在生活中,有关数字的表达,有时候不是1、2、3、4……就能说清的,很多情况下,我们要用到”第一“、”第二“、”第三“……,在英语中,这类数词被叫做”序数词“。常见的有以下几种情景:


  1.询问日期:
  Q:What's the date today? 今天几号?
  A:It's March (the) sixth 1. 今天3月6日。
  2.描述名次
  She was 2 the third in the exam 3. 她那次考试第三名。
  3.描述先后次序
  He came 4 in first. 他第一个进来。
  除了描述日期以外,其他用到序数词的情况都明显包含了”次序“的含义,大家不假思索就知道什么情况下要用到序数词了。
  怎么把基数词变成序数词?
  1.从1-19,一般情况下(除特殊情况以外)只要在基数词后面加上-th就可以了,读作-[θ],如下所示:
  特殊拼写:
  1 one → first 2 two → second 3 three → third 5 five → fifth 5
  8 eight → eighth 6 9 nine → ninth 7 12 twelve → twelfth 8
  规则拼写:
  2.从20开始,10的整数倍:将词尾y变成ie,再加-th构成
  例:30 thirty → thirtieth 9 50 fifty → fiftieth
  70 seventy → seventieth 90 ninety → ninetieth
  3.hundred,thousand,million的序数词均在其后加-th构成,即hundredth,thousandth,millionth
  序数词念法:把最后一个基数词变成序数词
  例:156 one hundred and fity-sixth
  1278 one thousand two hundred and seventy-eighth
  200 two hundredth

num.第六
  • He was the sixth to arrive.他是第六个到达的。
  • The sixth boy in line is my brother.排第六的男孩是我的弟弟。
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.(=examination)检查;考试
  • I hope to pass this exam.我希望通过这次考试。
  • His exam results were good.他的测验成绩不错。
v.动词come的过去式
  • I was surprised why he came here so early.他为什么那么早到这里,我很惊奇。
  • The doctor came in time to save his life.医生及时来抢救他的生命。
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.八分之一;num.第八
  • It is on the eighth page.它在第八页上。
  • August is the eighth month of the year.八月是一年中的第八个月。
adj.第九,九分之一
  • He is coming back on the ninth of May.他五月九号回来。
  • September is the ninth month of the year. 九月是一年中的第九个月。
num.第十二;n.十二分之一
  • It's November the twelfth.今天是十一月十二日。
  • December is the twelfth month of the year.12月是一年中的第12个月。
num.第三十
  • A day is about one thirtieth of a month.一天大约是一个月的三十分之一。
  • I'd like to go to Shanghai on December thirtieth.我12月30号想要去上海。
标签: 语法
学英语单词
advise sb against
Afghan coat
anti-explosion packing gland
antikinesis
avdp.
azran (azimuth and range)
backported
bright-field vertical illumination
bunch stranding
carper
cathode-ray polarograph
celosioides
chromosomal scaffold
citellus beecheyi
clipping path
coast guard ship
consquamatic acid
corporation law
Court-Saint-Etienne
creditor ledgers
cycloidian
Cymbi
density of defects
ease the helm
equilibrium height
estuarine biology
existence level of wages
fertilizer mixing machine
fibrous ring of heart
fixed type
flint polishing strip
flow off
flux flattened region
give feedback
grand challenge
group plan
Guiscriff
have sb by the balls
head living
Hedysarum polybotrys Hand.-Mazz.
hens-of-the-woods
herpestes
Homoistela
hydraulic efficiency
Kaempferia L.
lao tze
lateral integration
Lewkes
lintseed
lipofection
liver extract injection
loudspeaker dividing
lounge
lumany
Makusa
metroliners
microwires
minimum average field
MMAPI
n-dimensional distribution
night beacon
one-step design
palmcreeper
parking attendant
petuis
Pin-to-pin
place sb under a heavy disadvantage
plunging bra
pollute with
porzana paykullii
praxeas
prescanned
price out the market
pricing by quality
process-oriented
QTN
quantity adjusted this period
Ralph Waldo Ellison
rhodoit (erythrite)
root locus
Rowesville
rufiji r.
Selove receiver
single-action press with drawing cushion
small-power synchronous motor
Solomon R unit
spur reactions
step-down gear
stick-slip flow
sweat pen
sweatband
sweep mode
tell sb straight out
Thomas B.
Tomonaga-Schwin ger's equation
turridrupa astricta consobrina
unprotected site
video masking
windshield wiper
Winterboro
Zarp