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小升初数词
基数词:
1.1—12的基数词是独立的单词,即: one,two,three,four,five,six,seven,eight, nine,ten,eleven,twelve。
2.13—19的基数词以-teen结尾。如: fourteen,seventeen等,但13,15,18较特殊, 13—thirteen 15—fifteen 18—eighteen。
3.20—90的整十位均以-ty结尾。如: sixty,ninety,但20,30,40,50,80较特殊, 20—twenty, 30—thirty, 40—forty ,50—fifty ,80—eighty。
4.十位数与个位数之间要加连字符号“-”,如:28—twenty-eight,96—ninety-six
5.百位和十位(若无十位则和个位)之间加and,如:148—one hundred and forty-eight ,406—four hundred and six。
6.hundred(百),thousand(千),million(百万),billion(十亿)等前面即使有具体的数词,也不能在它们的后面加s。如:600—six hundred,8百万—eight million。
7.1000以上的数字,从后往前数每三位加一个逗号“,”第一个逗号前为千(thousand),第二个逗号前为百万(million),第三个逗号前为billion(十亿)。英语中无“万”这个词,我们可以用“几十个千(thousand)”表示几万,“几百个千(thousand)”表示“几十万”。
如:2,510=two thousand five hundred and ten;
84,296=eighty-four thousand two hundred and ninety-six;
274,350=two hundred and seventy-four thousand three hundred and fifty。
8.hundred,thousand,million用复数形式修饰名词时要用“of+复数名词”,如:数以百计的年轻人hundreds of young people;数以千计的书thousands of books。注意:hundreds of /thousands of/millions of +复数名词,其前面不能加具体的数词,但可加several或 many。
Exercise:
写出下列数字
12 14 20
40 90 19
400 600
35 78
305 678
序数词:
由基数词转变而来,表示“这是第n个”
1.口诀巧记基数词变序数词:
一、二、三,特殊记, (first,second,third)
八去“t”,九去“e”, (eight—eighth,nine—ninth)
“ve”要用“f”替, (five—fifth,twelve—twelfth)
见“y”变成“i”和“e”,词尾加上“th”, (twenty—twentieth,forty—fortieth)
若是遇到几十几,只变个位就可以。 (twenty-five—twenty-fifth)
其余情况均在基数词后加th。
如: six—sixth, nineteen—nineteenth 等。
2.序数词有时用缩写形式:
first——lst second——2nd third——3rd
fourth——4th sixth——6th twentieth——20th
twenty-third——23rd
其中lst,2nd,3rd为特殊形式,其它的都是阿拉伯数字后加上th
Exercise:
把下列基数词改成序数词。
one two three
five nine eight
fourteen twenty
thirty-five
3. 数词的应用
1)时刻的表示法
A、表示几点钟用基数词加可以省略的o'clock
5:00 读作 five o'clock 或 five
B、半点的表示法
表示半点钟时,用“钟点数+ thirty”或“half+ past +钟点数”表示
2: 30 two thirty / half past two
8:30 eighty thirty / half past eighty
C、“几点几分”的表示法
(1)用“钟点数+分钟数”表示
7:10 seven ten 9:40 nine forty
(2)分钟数在30分钟以内的,用“分钟数+ past +钟点数”表示,意为“几点过几分“
7:10 ten past seven 10:15 fifteen past ten / a quarter past ten
(3)分钟数超过30分钟的,用“(60-分钟数)+ to +下一个钟点数”表示,意为“差几分到几点”
10:40 twenty to eleven 2 : 45 fifteen to three / a quarter to three
Exercise: 用英语表示下列时间
10: 05 8: 30
12:10 1:15
5:47 9:23
3:51 11:49
6:00 7:22
2) 编号的表示法
编号既可以用序数词,也可用基数词。
the tenth lesson Lesson Ten 第十课
the fiftieth page page 50第五十页
有的编号习惯上常用基数词。例如:
Room 321(读作three two one) 321号房间
Tel.No.4013586(读作Telephone number four 0 one three five eight six)
电话号码4013586
3)年、月、日的表示法
英语中表示日期的顺序通常为月日年或日月年。
1、月、日的表示法
“月”用英语中表示月份的名词,“日常用序数词表示。
7月8日 July 8th ( July the eighth)
10月1日October 1st ( October the first)
2、年的表示法
1983→nineteen eighty-three1700→seventeen hundred
1870→eighteen seventy 2008→two thousand and eight
1601→sixteen and one或sixteen hundred and one
965→nine sixty-five
3、年、月、日的表示法
1986年9月1日 September 1st, 1986 / 1st September, 1986
2011年8月8日 August 8, 2011 / 8th August, 2011
Exercise:
用英语表示下列日期
11月1号 2月10号
5月22号 9月17号
10月3号 12月19号
第二部分例题讲解
1. Thursday is the f______ day of the week in the UK.
【答案与解析】序数词的用法及文化习俗。Thursday是周四,但在英国的周历中,周日是一周的第一天,所以周四是一周的第五天而不是第四天
2. Women’s Day is on the e______ of M_______.
【答案与解析】 月份、序数词的用法及节假日文化常识。妇女节是每年3月8日
3. ( ) How do we say “99,118” ?
A. ninety-nine thousand and one hundred and eighteen
B. ninety-nine thousands one hundreds and eighteen
C. ninety-nine thousand one hundred and eighteen
D. ninety-nine thousands and one hundred and eighteen
第三部分课堂练习
2)单项选择
( )1.There are ___________ days in a year.
A.three hundred and sixty five B.three hundred and sixty-five
C.three hundreds and sixty five D.three hundreds and sixty—five
( )2.Danny lives in __________.
A.room 404 B.Room 404 C.404 room D.404 Room
( )3.Jim is in __________.
A.class one,grade six B.grade one,class six
C.Class One,Grade Six D.Grade One, Class Six
( )4.The bike cost me _________ yuan.
A.five hundred forty B.five hundreds fourty
C.five hundred and forty D.five hundred fourty
( )5.My telephone number is ____________.
A.eighty eight two forty four zero nine
B.eight eight two double four O nine
C.eighty eight two forty-four zero nine
D.eight eight two four four zero nine
( )6.Is there any food for us _________?
A.ten B.tenth C.the tenth D.the ten
( )7.Mary is _________ girl.
A. an 8 year old B.8一years—old
C.the 8 years old D.an 8一year—old
( )8.—What day is today? — ___________
A.June B.Tuesday
C.It is hot D.It’s fine
( )9.—What’s the date today? — ___________
A.It’s Saturday B.It’s July C.It’s fine D.It’s JuIy 15
( )10.—What time do you get up every day?
A.It’s seven o’clock B.Seven o’clock time
C.At seven D.On seven
第四部分课后作业
1.There are ___________ days in a year.
A.three hundred and sixty five B.three hundred and sixty-five
C.three hundreds and sixty five D.three hundreds and sixty—five
( )2.Danny lives in __________.
A.room 404 B.Room 404 C.404 room D.404 Room
( )3.Jim is in __________.
A.class one,grade six B.grade one,class six
C.Class One,Grade Six D.Grade One Class Six
( )4.The bike cost me _________ yuan.
A.five hundred forty B.five hundreds fourty
C.five hundred and forty D.five hundred fourty
( )7.Mary is _________ girl.
A. an 8 year old B.8一years—old
C.the 8 years old D.an 8一year—old
( )9.—What’s the date today? — ___________
A.It’s Saturday B.It’s July C.It’s fine D.It’s JuIy 15
( )10.—What time do you get up every day?
A.It’s seven o’clock B.Seven o’clock time
C.At seven D.On seven
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