數(shù)詞學習——新航道國際冬令營
one→first,two→second,three→third,five→fifth,eight→eighth,nine→ninth,twelve--~twelfth
新航道游學冬令營帶你周游你想去的國家。
1.基數(shù)詞(1000以內(nèi)的基數(shù)詞的讀法)
(1)1-20:one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen, sixteen,seventeen,eighteen,nineteen,twenty
2.基數(shù)詞變序數(shù)詞的方法:
(1)一般在基數(shù)詞后加th
eg.four→fourth,thirteen→thirteenth
(2)不規(guī)則變化
one→first,two→second,three→third,five→fifth,eight→eighth,nine→ninth,twelve--~twelfth
(3)以y結(jié)尾的十位整數(shù),變y為ie再加th
twenty→twentieth, forty→fortieth,ninety→ninetieth
(4)從二十一后的“幾十幾”直至“幾百幾十幾”或“幾千幾百幾十幾”只將個位的基數(shù)詞變?yōu)樾驍?shù)詞。
twenty-first,two hundred and forty-fifth
口訣:
基變序,有規(guī)律;詞尾要加th。
一二三,特殊記;詞尾分別tdd。
八去t ,九去e ;ve則以f替。
ty 則變作 ti ; 后面還有一個e。
要是遇到幾十幾;只將個位變成序。
3.數(shù)詞的應(yīng)用:
a、時間:
a. 整點:基數(shù)詞 + o’clock
eg. it’s eight o’clock now.
b. 幾點幾分:
1.直接表達法:先小時后分
eg. 3:25 three twenty-five
2.間接表達法:先分后小時
1)(<30分鐘)用past :分鐘past 小時
eg. 3:25 twenty-five (minutes) past three
2) (>30分鐘)用to:(60-分鐘數(shù)) to (小時數(shù)+1)
eg. 3:35 twenty-five (minutes) to four
3) 30分鐘 = half 15分鐘 = a quarter
eg. 3:30 three thirty = half past three
3:15 three fifteen = a quarter past three.
3:45 three forty-five = a quarter to four
b、日期表達法:月日,年(或日月年)
1949年10月1日 :
october1st , nineteen forty-nine
=the first of october, nineteen forty-nine
2000年: the year two thousand
=twenty hundred
2001年: twenty o one
3月1日: march the first = the first of march
c、表編號:
第207房間:room 207
第五課: lesson 5 = the fifth lesson
d、序數(shù)詞與不定冠詞(a; an)連用表“又一;再一”
eg. you’ve done it three times. why not try a fourth time?
e、分數(shù)的表達:分子(基數(shù))、分母(序數(shù))
eg. one third 三分之一 two thirds 三分之二
注意:
1.分子超過1時,分母加s
2.含分數(shù)的短語作主語由分數(shù)后的詞決定謂語
eg.1)one third of the students are girls.
2)one third of the milk is mine.
3.分數(shù)的特殊形式
1)one third = a third
2)one fourth = a quarter
three fourths = three quarters
3)one second = a half
f、表約數(shù):
表不確定的數(shù)字時,數(shù)詞用復數(shù)。
若帶名詞,再加of
如:hundreds of(數(shù)百,成百上千的),thousands of(數(shù)干,成千上萬的),millions of(數(shù)百萬的)
g、數(shù)學運算的表達
eg.3+5=8 three plus/and five is eight.
9-2=7 nine minus two is seven.
6x5=30 five times six is thirty
8÷2=4 eight divided by two is four.
上一篇:語語法特輯---形容詞副詞
下一篇:沒有了