内容正文:
小升初语法讲解 数词(序数词) 专题训练(讲义) 牛津译林版(三起)英语六年级下册
知识点讲解
序数词 = 基数词+th,但以下几个特殊:
one-first, two-second, three-third, five-fifth. eight-eighth, nine-ninth,
twelve-twelfth, twenty-twentieth ……, a hundred-a hundredth
6.倍数、分数、小数、百分数的表示方法
· 倍数:time(s)
This room is three times as large as that one. 这个房间有那个房间三个大。
Three threes are nine. or Three times three is nine. 三三得九。
· 分数:
分子用基数词表示,分母用序数词表示,分子为2以上时,分母(序数词)应变为复数。
三分之一,one third, a third; 五分之三,three fifths
数短语作主语时,谓语的数由of 后面的名词来决定,名词为可数名词复数,则谓语用复数;名词为不可数名词,谓语用单数。
A third of the land is covered by forests. 三分之一的陆地被森林覆盖。
Two thirds of the workers are working hard. 三分之二的工人正在努力工作。
· 小数:
小数点前的基数词与前面所讲的基数词读法完全相同,小数点后面则须将数字一一读出。
1.25 读作 one point two five
0.56 读作naught point five six或zero point five six
· 百分数:
百分号%读作 percent
5% 读作 five percent
7.算式表达法
加法:A+B=C → A plus B is C. \ A and B is C.
减法:A-B=C →A minus B is C. \ B from A is C.
乘法:A×B=C → A times B is C. \ A multiplied by B is C.
除法:A÷B=C → A divided by B is C.
大于:A>B → A is more than B.
小于:A<B →A is less than B.
8.常见数词的表示法及读法
章节、页数的读法
第一章:the first chapter ; Chapter One
第二节:the second section ; Section Two
第三课:the third lesson ; Lesson Three
第463页:page four six three
房间、门牌、电话号码的读法
第305房间:Room three o (零) five
长安街76号:seventy-six Chang’an Street
电话号码:204-2244:telephone number two o (零) four two two (double two) four four
十一路公共汽车:Bus (No.) eleven
9.年代、日期、时刻的读法
四位数字时,各分成二位来读,公元1995年:1995(=nineteen ninety-five)
日期使用一般的序数词来读取 5月10日:May 10th(=May tenth)
时刻通常用基数词来读 8点45分:8: 45(=eight forty-five)
年代表示法: 二十世纪九十年代:1990’s nineteen nineties
10.hundred, thousand, million用法:
hundred, thousand, million前面有具体数字,要用单数形式,但如果它们后面有of,那它们要用复数形式,同时,前面不能再加具体的数目。
two thousand 两千 thousands of 成千上万
hundreds of 成百上千 millions of 数以百万计
Thousands and thousands of people have visited the city. 成千上万的人参观了这座城市。
精选精练
一、选择题
1.—When’s your birthday, Lisa? ( )
—My birthday is in spring. It’s on the _______ of _______.
A.eight; March B.eighth; April C.eighth; July
2.There is