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
5'-DFUR
a lay
acosmia
aidothymidine
airconditioned
all or nothing check
all-weather wind vane and anenometer
alternating plasticity
aluminium tanker
any transport over mpls
aphyosemions
archeophytic
areomete
argentaffine
artificial signal source
asportavit
Balme's cough
bushy run
callicarpa longiloba merr.
chordates
commercial warehouse
communication language
composition of air
contrivable
cosmic-ray source
cryohemostasis
death-light
dichobunids
disinhabit
domestic proceedings
drill-and-thinner
drop-down menu
electromechanical accelerometer
encyclica
energy transmission medium
engine-room
eolianites
epipolar axis
error rate measuring equipment
flue-cured tobacco
furphies
fuzziness
granola bars
hamway
in-place regeneration
iniomous
known accumulation
lindenii
Lowndes County
lumber freeboard mark
medical value
megadynamics
Methorate
mimetics
mis-sent items
mizen-yard
mould amylase
neurological system
NM-64 super neutron monitor
non-regulated
OBR
onyx agate
out-performance
outside poster
paper-core cable
pintle lock
planal
polydnaviruses
polymeric electro-optical material
postemergency
Potentilla conferta
power supply change over
pre-births
projective conformal geometry
put it in another way
red haws
reducing plane table equipment
reforcing pad
Robeson, Is.
saint-ange
sign-off
signboarding
sintered source
Soxhlet (extraction) apparatus
sssoes
stirred tank reactor
stpd
subjunctive mood
take law as the criterion
tracer
trichlorobutyraldehyde
tube valve
upper carboniferous periods
urt
valley board
vertical drive shaft
vinovich
wanderu
watersky
wave-induced current
worker's insurance
zenith photography