小升初英语考点之数词
解析数词
一、从三个方面：
a.数词的定义和分类
b.小升初数词常见考点之基数词
c.基数词的构成和用法
二、数词的定义和分类
1.数词是表示数目、数字和顺序的词。分为基数词和序数词。
2.基数词表示人或物的.数量：如:one,two,three,four;
3.序数词表示人或物的次序，序数词前一般要加定冠词the；如:first,second,third,fourth,fifth;数词常见考点之基数词。
三、接下来给大家带来5道小升初数词考点的真题，请准备好答题。
( ) 1. The volunteers sent books to a mountain village school on Children's Day
A. two hundreds of
B. two hundred of
C. two hundreds
D. two hundred
( )2. The two brothers study in Middle School.
A. NO. 12 B. No. 12th
C. Twelfth D. 12
( )3. He will be back in
A. one day and two
B. one or two days
C. a day and two
D. one day and two
( )4.-when does he finish the first class?—At .
A. forty-five past eight
B. forty-five to eight
C. eight forty-five
D. eight forty five
( )5. The room is the size of that one.
A. five time B. five times
C. fifth time D. fifth times
四、基数词的构成和用法
1.构成
(1)从1-12
one, two, three, four, five, six, seven, eight, nine, ten,eleven, twelve
(2)从13-19+teen
thirteen, fourteen, fifteen, sixteen, Seventeen, eighteen, nineteen
(3)从20-90变teen为ty
twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety
(4)“几十几”表达法：十位数和个位数之间要用连字符”-”
22: twenty-two;
55: fifty-five
(5)三位数的表达法：几+百+and+末两(一)位数
132: one hundred and thirty-two
605: six hundred and five
2.用法
(1) hundred，thousand，million前面有具体的数字时，要用单数形式，但如果前面没有具体数字，表示”成百、成千”时，要用复数形式，后接of。
(2)用数词的复数形式表示年代和大约年龄
(3)在算式中
(4)年号
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