北安中学(九年级英语)学?/p>
一、教学目标:数词的相关语法以及能够利用相关语法做题?/p>
二、重难点:灵活地运用定数词的相关的知识进行做?/p>
三、复习内容:基数词的用法?/p>
四、自学内容与指导?/p>
基数词的读法?/p>
1.1-12
?/p>
?/p>
?/p>
?/p>
one,
two,
three,
four ,five ,six ,seven ,eight ,nine ,ten ,eleven ,twelve.
2.13-19
?/p>
?/p>
?/p>
teen
:thirteen
,fourteen
,fifteen
,
sixteen
,
seventeen
,
eighteen ,nineteen.
3.20,
30,
40
?/p>
?/p>
?/p>
?/p>
?/p>
?/p>
?/p>
?/p>
?/p>
ty
?/p>
twenty
,thirty
,
forty
,fifty
,
sixty ,seventy ,eighty ,ninety.
4.21-99
的非整数十位数的单词在十位数和个位数之间加连字符构成。如?/p>
twenty-one21
,twenty-two22
,twenty-three
23
,
thirty-four34 ,thirty-five35 ,forty-six 46, forty-seven 47
fifty-eight58 ,sixty-nine69
5.101-999
先说几百,再?/p>
and
,再加末尾两位数(或末尾数)
one hundred and two 102 , four hundred and eighty-two 482
nine hundred and ninety-nine 999 ,three hundred and sixty-three 363
6.1000
以上的单词,是从右向左用分节号“’”分节,每三个数字为一节,第一个分节号
前用
thousand
,第二个分节号前?/p>
million
,第三个分节号前?/p>
billion(
美语
)
?/p>
one
thousand million
(英国用法)
?/p>
1004
?/p>
one thousand and four
18,657,421
eighteen
million
,six
hundred
and
fifty-seven
thousand
,four
hundred
and
twenty-one.
1,214,000,000 one billion ,two hundred and fourteen million
/ one thousand million ,two hundred and fourteen million
725,369 seven hundred and twenty-five thousand ,three hundred and sixty-nine
基数词的用法?/p>
1.
基数词在句中可作主语、宾语、定于、同位语、标语。如?/p>
Twenty of them are Party members.
Three from eight leaves five.
The nine boys are from Taiyuan.
Six plus four is ten.
We four will go to HongKong with you .
2.
在表示具体数目时?/p>
hundred,thousand,million
等用单数;在表示“数百?/p>
“数千?/p>
“数
百万”等不确定数目时,在
hundreds, thousands,millions
后加
of+
名词复数。如?/p>
Thousands of trees must be planted every year.
What would you do if you had a million dollars?
3.
基数词的复数形式可用来表示人的岁数或时代?/p>
He went to the United States in his twenties.
You
?/p>
re sharpest in your twenties.
That was in the early forties.