有关数词的一些其他表示方法和用法
Question：今天还是研究数词吗？
Answer：是的。今天我们谈谈有关数词的一些其他表示方法和用法。
有关数词的一些其他表示方法和用法
Reading：
It’s 8:30 in the morning. The students of Class 4 are having an interesting lesson.
toilet at
Teacher: What’s the date today?
Student A: It’s October 4th .
Teacher: Right！What is special for toady?
Student B: It’s World Animal Day.
Teacher：Very good！Let’s read this short story. And pay attention to the pictures in it.
“How Many Legs?
Many animals have legs.
The animals have two legs.
The animals have four legs.
The animals have six legs.
The animals have eight legs.
The animals have ten legs.
How many animals do the animals have?”
Teacher: Now answer my questions. How many legs does a penguin have?
Student C: Two.
Teacher: Can you write a maths problem with the animals legs? For example: 4-2=2 Four minus two is two. You can explain as the following：An elephant has four legs. A crane has two legs. An elephant has two more legs than a crane.
Student D: 4+6=10
Student F：2x4=8
Student G: 8-6=2
Student H: 4÷8=0.5
Student I: 2÷4=
......
Teacher : You did very good job. One more question: How many legs does a centipede have?
Student J: It has hundreds of legs!
1. hundreds of 等表示不确定的数。在数词后面+s 表示不确定的数。
It has hundreds of legs.
又如： thousands and thousands of（成千上万）
莫里森公式hundreds(thousands) upon thousands of（千千万万）
They arrived in twos and threes.（他们三三两两地来了）
He is in his forties.（他四十多岁。）
It happened in the 1950s.（这事发生在二十世纪50年代。）
dozen(12) dozens of（好几十）
score(20) scores of（好几十，成百）
2. 有些有关数词的读法
计算：4-2=2 Four minus two is two.
又如：
6+6=12 Six plus six is twelve.
6x 2=12 Six times (multiplied by) two is twelve.
6÷3=2 Six divided by three is two.
年份：
1949 nineteen forty-nine
1900 nineteen hundred
1804 eighteen O four
685 B.C. six eight five B.C.
日期：It’s October 4th .
May 4th May (the) fourth/the fourth of May
July 1st July(the first/the first of July
时刻：It’s 8:30 in the morning.
8:00 eight /eight o’clock
9:15 nine fifteen/a quarter past(美after) nine
10:21 ten twenty-one/twenty-one past ten
2:30 two thirty/ half past two
5:45 five forty-five/a quarter to(美of) five
7:00am ven am（上午）
5:00pm five pm（下午）
12:00 twelve/midday/noon
24:00 twenty-four/midnight
分数： 2÷4=
a(one) half
a(one) third
化妆师有前途吗two thirds
a(one) quarter/one fourth
three quarters/three fourth
five twelfths
2 livemochatwo and three fifths
2 two and three fifths
2 two and a quarter
twenty-two over nine
小数：
7.8 ven point eight
0.4 zero(或nought) point four
15.639 fifteen point six three nine
百分数：
26% twenty-six percent
96% ninety-six percent
3. 部分表示数量的多少常用的短语：
They had plenty of fish and fruit to eat.surpri的用法（ 见基数词和序数词 Reading）
只能修饰可数名词的：
negro的复数
few (a few), quite a few
(a good, great) many
a (large) number of
只能修饰不可数名词的：
little (a little)
much
a great deal of
既可以修饰可数名词也可以修饰不可数名词的：
plenty of
a lot of (lots of)
(large) quantities of
注意：few, little 表示否定意义， a few, a little表示肯定意义：
Few of them want to go, do they?（他们没几个人想去， 是吧？）
--Would you like some milk?（来点儿牛奶？）
--Yes, a little.（好， 来点儿吧。）
man in black小练习：
读出下面的计算题：
4+6=10 2x4=8 8-6=2 4÷8=0.5pullman（什么是bbsor ）
上期答案：
1） Two hundred and thirty-four thousand six hundred and sixty-six
baby girl2） Nine hundred million ven hundred and sixty three thousand two hundred and one
3） The thirty third 4） the forty-eighth
