内容正文:
2024年中考英语数词的复习巩固+课后练习
语法专题:数词
1.基数词的写法
① 1-12为独立的单词,有其各自的形式
② 13-19都以-teen结尾,它们都有两个重读音节。
③ 20-19之间的“整十”都是以-ty结尾的
2. 基数词的读法
①表示20-99 之间的“几十几”时,先说“几十”,再说“几”,且十位和各位之间要加连字符。
22 twenty- two 35 thirty-five
② 101-999之间的非整百的基数词的读法为:百位数和十位数(或个位数)之间用and来连接。
156 one hundred and fifty-six 709 seven hundred and nine
③ 四位数或四位数以上的基数词的拼写规则为:用逗号从右向左每三位加一个逗号,第一个逗号前用thousand; 第二个逗号前要用million; 第三个逗号前要用billion; 读数时从左向右依次读出来.
3,895 three thousand, eight hundred and ninety-five
17,825, 437, 108 seventeen billion, eight hundred and twenty-five million, four hundred and thirty-seven thousand, one hundred and eight
12,345,678,900读作___________________________
3. 基数词基本的用法
(1)确切数目的表达:hundred, thousand, million, billion+名词复数
six hundred books several million people
(2)表示大概的数目:hundreds/thousands/millions/ billions of + 名词复数”
There are hundreds of people in the factory.
(3)次数、倍数的表达,如once, twice, three times, many times
(4)编号的事物用基数词,也可用序数词
Turn to Page Five= Turn to the fifth page.
(5)数词+名词单数(+形容词)作定语
a 21-year-old girl; an 8-day holiday
(6)表示“年、月、日”时年份用基数词,日期用序数词,其顺序由小到大。
1949年10月1日: October 1st , nineteen forty-nine =the first of October, nineteen forty-nine
2016年: the year two thousand and sixteen =twenty hundred and sixteen
2001年: twenty o one= two thousand and one
3月1日: March first = the first of March
(7)钟点表达法
1)先点后分,顺读法。如:8:53 eight fifty-three
2)先分后点,倒读法。前半小时用“分钟数+past+已过钟点数”;后半小时用“(60-分钟数)+to+下一个钟点数”;正好半点用“half past+已过钟点数”;一刻钟用“quarter”。
7:20 twenty past seven; 6:35 twenty-five to seven; 1:58 two to two;
8:30 half past eight; 9:15 a quarter past nine; 9:45 a quarter to ten.
(8)小数的读法:point
小数点左边的按正常的数读 小数点右边的按一位位数来读
如:12.34 就读作: twelve point three four 0.2 zero point two 或者 point two
(9)百分数的读法:percent
20% twenty percent 50% fifty percent
(10)加减乘除的英语表达方法:
=: is/ equals +: plus -:us ×: multiplied by/times ÷: divided by 都是表示加减乘除的介词。用于读出已列的算式。
2+3=5 Two plus three